| /* |
| * turbostat -- show CPU frequency and C-state residency |
| * on modern Intel turbo-capable processors. |
| * |
| * Copyright (c) 2013 Intel Corporation. |
| * Len Brown <len.brown@intel.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #define _GNU_SOURCE |
| #include MSRHEADER |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <err.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <sys/stat.h> |
| #include <sys/resource.h> |
| #include <fcntl.h> |
| #include <signal.h> |
| #include <sys/time.h> |
| #include <stdlib.h> |
| #include <dirent.h> |
| #include <string.h> |
| #include <ctype.h> |
| #include <sched.h> |
| #include <cpuid.h> |
| #include <linux/capability.h> |
| #include <errno.h> |
| |
| char *proc_stat = "/proc/stat"; |
| unsigned int interval_sec = 5; /* set with -i interval_sec */ |
| unsigned int verbose; /* set with -v */ |
| unsigned int rapl_verbose; /* set with -R */ |
| unsigned int rapl_joules; /* set with -J */ |
| unsigned int thermal_verbose; /* set with -T */ |
| unsigned int summary_only; /* set with -S */ |
| unsigned int dump_only; /* set with -s */ |
| unsigned int skip_c0; |
| unsigned int skip_c1; |
| unsigned int do_nhm_cstates; |
| unsigned int do_snb_cstates; |
| unsigned int do_c8_c9_c10; |
| unsigned int do_slm_cstates; |
| unsigned int use_c1_residency_msr; |
| unsigned int has_aperf; |
| unsigned int has_epb; |
| unsigned int units = 1000000; /* MHz etc */ |
| unsigned int genuine_intel; |
| unsigned int has_invariant_tsc; |
| unsigned int do_nhm_platform_info; |
| unsigned int do_nhm_turbo_ratio_limit; |
| unsigned int do_ivt_turbo_ratio_limit; |
| unsigned int extra_msr_offset32; |
| unsigned int extra_msr_offset64; |
| unsigned int extra_delta_offset32; |
| unsigned int extra_delta_offset64; |
| int do_smi; |
| double bclk; |
| unsigned int show_pkg; |
| unsigned int show_core; |
| unsigned int show_cpu; |
| unsigned int show_pkg_only; |
| unsigned int show_core_only; |
| char *output_buffer, *outp; |
| unsigned int do_rapl; |
| unsigned int do_dts; |
| unsigned int do_ptm; |
| unsigned int tcc_activation_temp; |
| unsigned int tcc_activation_temp_override; |
| double rapl_power_units, rapl_energy_units, rapl_time_units; |
| double rapl_joule_counter_range; |
| unsigned int do_core_perf_limit_reasons; |
| unsigned int do_gfx_perf_limit_reasons; |
| unsigned int do_ring_perf_limit_reasons; |
| |
| #define RAPL_PKG (1 << 0) |
| /* 0x610 MSR_PKG_POWER_LIMIT */ |
| /* 0x611 MSR_PKG_ENERGY_STATUS */ |
| #define RAPL_PKG_PERF_STATUS (1 << 1) |
| /* 0x613 MSR_PKG_PERF_STATUS */ |
| #define RAPL_PKG_POWER_INFO (1 << 2) |
| /* 0x614 MSR_PKG_POWER_INFO */ |
| |
| #define RAPL_DRAM (1 << 3) |
| /* 0x618 MSR_DRAM_POWER_LIMIT */ |
| /* 0x619 MSR_DRAM_ENERGY_STATUS */ |
| /* 0x61c MSR_DRAM_POWER_INFO */ |
| #define RAPL_DRAM_PERF_STATUS (1 << 4) |
| /* 0x61b MSR_DRAM_PERF_STATUS */ |
| |
| #define RAPL_CORES (1 << 5) |
| /* 0x638 MSR_PP0_POWER_LIMIT */ |
| /* 0x639 MSR_PP0_ENERGY_STATUS */ |
| #define RAPL_CORE_POLICY (1 << 6) |
| /* 0x63a MSR_PP0_POLICY */ |
| |
| |
| #define RAPL_GFX (1 << 7) |
| /* 0x640 MSR_PP1_POWER_LIMIT */ |
| /* 0x641 MSR_PP1_ENERGY_STATUS */ |
| /* 0x642 MSR_PP1_POLICY */ |
| #define TJMAX_DEFAULT 100 |
| |
| #define MAX(a, b) ((a) > (b) ? (a) : (b)) |
| |
| int aperf_mperf_unstable; |
| int backwards_count; |
| char *progname; |
| |
| cpu_set_t *cpu_present_set, *cpu_affinity_set; |
| size_t cpu_present_setsize, cpu_affinity_setsize; |
| |
| struct thread_data { |
| unsigned long long tsc; |
| unsigned long long aperf; |
| unsigned long long mperf; |
| unsigned long long c1; |
| unsigned long long extra_msr64; |
| unsigned long long extra_delta64; |
| unsigned long long extra_msr32; |
| unsigned long long extra_delta32; |
| unsigned int smi_count; |
| unsigned int cpu_id; |
| unsigned int flags; |
| #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 |
| #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 |
| } *thread_even, *thread_odd; |
| |
| struct core_data { |
| unsigned long long c3; |
| unsigned long long c6; |
| unsigned long long c7; |
| unsigned int core_temp_c; |
| unsigned int core_id; |
| } *core_even, *core_odd; |
| |
| struct pkg_data { |
| unsigned long long pc2; |
| unsigned long long pc3; |
| unsigned long long pc6; |
| unsigned long long pc7; |
| unsigned long long pc8; |
| unsigned long long pc9; |
| unsigned long long pc10; |
| unsigned int package_id; |
| unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */ |
| unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */ |
| unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */ |
| unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */ |
| unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */ |
| unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */ |
| unsigned int pkg_temp_c; |
| |
| } *package_even, *package_odd; |
| |
| #define ODD_COUNTERS thread_odd, core_odd, package_odd |
| #define EVEN_COUNTERS thread_even, core_even, package_even |
| |
| #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ |
| (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ |
| topo.num_threads_per_core + \ |
| (core_no) * topo.num_threads_per_core + (thread_no)) |
| #define GET_CORE(core_base, core_no, pkg_no) \ |
| (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) |
| #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) |
| |
| struct system_summary { |
| struct thread_data threads; |
| struct core_data cores; |
| struct pkg_data packages; |
| } sum, average; |
| |
| |
| struct topo_params { |
| int num_packages; |
| int num_cpus; |
| int num_cores; |
| int max_cpu_num; |
| int num_cores_per_pkg; |
| int num_threads_per_core; |
| } topo; |
| |
| struct timeval tv_even, tv_odd, tv_delta; |
| |
| void setup_all_buffers(void); |
| |
| int cpu_is_not_present(int cpu) |
| { |
| return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); |
| } |
| /* |
| * run func(thread, core, package) in topology order |
| * skip non-present cpus |
| */ |
| |
| int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), |
| struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) |
| { |
| int retval, pkg_no, core_no, thread_no; |
| |
| for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { |
| for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { |
| for (thread_no = 0; thread_no < |
| topo.num_threads_per_core; ++thread_no) { |
| struct thread_data *t; |
| struct core_data *c; |
| struct pkg_data *p; |
| |
| t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); |
| |
| if (cpu_is_not_present(t->cpu_id)) |
| continue; |
| |
| c = GET_CORE(core_base, core_no, pkg_no); |
| p = GET_PKG(pkg_base, pkg_no); |
| |
| retval = func(t, c, p); |
| if (retval) |
| return retval; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| int cpu_migrate(int cpu) |
| { |
| CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); |
| CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); |
| if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) |
| return -1; |
| else |
| return 0; |
| } |
| |
| int get_msr(int cpu, off_t offset, unsigned long long *msr) |
| { |
| ssize_t retval; |
| char pathname[32]; |
| int fd; |
| |
| sprintf(pathname, "/dev/cpu/%d/msr", cpu); |
| fd = open(pathname, O_RDONLY); |
| if (fd < 0) |
| err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname); |
| |
| retval = pread(fd, msr, sizeof *msr, offset); |
| close(fd); |
| |
| if (retval != sizeof *msr) |
| err(-1, "%s offset 0x%llx read failed", pathname, (unsigned long long)offset); |
| |
| return 0; |
| } |
| |
| /* |
| * Example Format w/ field column widths: |
| * |
| * Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt |
| * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678 |
| */ |
| |
| void print_header(void) |
| { |
| if (show_pkg) |
| outp += sprintf(outp, " Package"); |
| if (show_core) |
| outp += sprintf(outp, " Core"); |
| if (show_cpu) |
| outp += sprintf(outp, " CPU"); |
| if (has_aperf) |
| outp += sprintf(outp, " Avg_MHz"); |
| if (has_aperf) |
| outp += sprintf(outp, " %%Busy"); |
| if (has_aperf) |
| outp += sprintf(outp, " Bzy_MHz"); |
| outp += sprintf(outp, " TSC_MHz"); |
| if (do_smi) |
| outp += sprintf(outp, " SMI"); |
| if (extra_delta_offset32) |
| outp += sprintf(outp, " count 0x%03X", extra_delta_offset32); |
| if (extra_delta_offset64) |
| outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64); |
| if (extra_msr_offset32) |
| outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32); |
| if (extra_msr_offset64) |
| outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64); |
| if (do_nhm_cstates) |
| outp += sprintf(outp, " CPU%%c1"); |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, " CPU%%c3"); |
| if (do_nhm_cstates) |
| outp += sprintf(outp, " CPU%%c6"); |
| if (do_snb_cstates) |
| outp += sprintf(outp, " CPU%%c7"); |
| |
| if (do_dts) |
| outp += sprintf(outp, " CoreTmp"); |
| if (do_ptm) |
| outp += sprintf(outp, " PkgTmp"); |
| |
| if (do_snb_cstates) |
| outp += sprintf(outp, " Pkg%%pc2"); |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, " Pkg%%pc3"); |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, " Pkg%%pc6"); |
| if (do_snb_cstates) |
| outp += sprintf(outp, " Pkg%%pc7"); |
| if (do_c8_c9_c10) { |
| outp += sprintf(outp, " Pkg%%pc8"); |
| outp += sprintf(outp, " Pkg%%pc9"); |
| outp += sprintf(outp, " Pk%%pc10"); |
| } |
| |
| if (do_rapl && !rapl_joules) { |
| if (do_rapl & RAPL_PKG) |
| outp += sprintf(outp, " PkgWatt"); |
| if (do_rapl & RAPL_CORES) |
| outp += sprintf(outp, " CorWatt"); |
| if (do_rapl & RAPL_GFX) |
| outp += sprintf(outp, " GFXWatt"); |
| if (do_rapl & RAPL_DRAM) |
| outp += sprintf(outp, " RAMWatt"); |
| if (do_rapl & RAPL_PKG_PERF_STATUS) |
| outp += sprintf(outp, " PKG_%%"); |
| if (do_rapl & RAPL_DRAM_PERF_STATUS) |
| outp += sprintf(outp, " RAM_%%"); |
| } else if (do_rapl && rapl_joules) { |
| if (do_rapl & RAPL_PKG) |
| outp += sprintf(outp, " Pkg_J"); |
| if (do_rapl & RAPL_CORES) |
| outp += sprintf(outp, " Cor_J"); |
| if (do_rapl & RAPL_GFX) |
| outp += sprintf(outp, " GFX_J"); |
| if (do_rapl & RAPL_DRAM) |
| outp += sprintf(outp, " RAM_W"); |
| if (do_rapl & RAPL_PKG_PERF_STATUS) |
| outp += sprintf(outp, " PKG_%%"); |
| if (do_rapl & RAPL_DRAM_PERF_STATUS) |
| outp += sprintf(outp, " RAM_%%"); |
| outp += sprintf(outp, " time"); |
| |
| } |
| outp += sprintf(outp, "\n"); |
| } |
| |
| int dump_counters(struct thread_data *t, struct core_data *c, |
| struct pkg_data *p) |
| { |
| outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p); |
| |
| if (t) { |
| outp += sprintf(outp, "CPU: %d flags 0x%x\n", |
| t->cpu_id, t->flags); |
| outp += sprintf(outp, "TSC: %016llX\n", t->tsc); |
| outp += sprintf(outp, "aperf: %016llX\n", t->aperf); |
| outp += sprintf(outp, "mperf: %016llX\n", t->mperf); |
| outp += sprintf(outp, "c1: %016llX\n", t->c1); |
| outp += sprintf(outp, "msr0x%x: %08llX\n", |
| extra_delta_offset32, t->extra_delta32); |
| outp += sprintf(outp, "msr0x%x: %016llX\n", |
| extra_delta_offset64, t->extra_delta64); |
| outp += sprintf(outp, "msr0x%x: %08llX\n", |
| extra_msr_offset32, t->extra_msr32); |
| outp += sprintf(outp, "msr0x%x: %016llX\n", |
| extra_msr_offset64, t->extra_msr64); |
| if (do_smi) |
| outp += sprintf(outp, "SMI: %08X\n", t->smi_count); |
| } |
| |
| if (c) { |
| outp += sprintf(outp, "core: %d\n", c->core_id); |
| outp += sprintf(outp, "c3: %016llX\n", c->c3); |
| outp += sprintf(outp, "c6: %016llX\n", c->c6); |
| outp += sprintf(outp, "c7: %016llX\n", c->c7); |
| outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c); |
| } |
| |
| if (p) { |
| outp += sprintf(outp, "package: %d\n", p->package_id); |
| outp += sprintf(outp, "pc2: %016llX\n", p->pc2); |
| outp += sprintf(outp, "pc3: %016llX\n", p->pc3); |
| outp += sprintf(outp, "pc6: %016llX\n", p->pc6); |
| outp += sprintf(outp, "pc7: %016llX\n", p->pc7); |
| outp += sprintf(outp, "pc8: %016llX\n", p->pc8); |
| outp += sprintf(outp, "pc9: %016llX\n", p->pc9); |
| outp += sprintf(outp, "pc10: %016llX\n", p->pc10); |
| outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg); |
| outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores); |
| outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx); |
| outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram); |
| outp += sprintf(outp, "Throttle PKG: %0X\n", |
| p->rapl_pkg_perf_status); |
| outp += sprintf(outp, "Throttle RAM: %0X\n", |
| p->rapl_dram_perf_status); |
| outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c); |
| } |
| |
| outp += sprintf(outp, "\n"); |
| |
| return 0; |
| } |
| |
| /* |
| * column formatting convention & formats |
| */ |
| int format_counters(struct thread_data *t, struct core_data *c, |
| struct pkg_data *p) |
| { |
| double interval_float; |
| char *fmt8; |
| |
| /* if showing only 1st thread in core and this isn't one, bail out */ |
| if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) |
| return 0; |
| |
| /* if showing only 1st thread in pkg and this isn't one, bail out */ |
| if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; |
| |
| /* topo columns, print blanks on 1st (average) line */ |
| if (t == &average.threads) { |
| if (show_pkg) |
| outp += sprintf(outp, " -"); |
| if (show_core) |
| outp += sprintf(outp, " -"); |
| if (show_cpu) |
| outp += sprintf(outp, " -"); |
| } else { |
| if (show_pkg) { |
| if (p) |
| outp += sprintf(outp, "%8d", p->package_id); |
| else |
| outp += sprintf(outp, " -"); |
| } |
| if (show_core) { |
| if (c) |
| outp += sprintf(outp, "%8d", c->core_id); |
| else |
| outp += sprintf(outp, " -"); |
| } |
| if (show_cpu) |
| outp += sprintf(outp, "%8d", t->cpu_id); |
| } |
| |
| /* Avg_MHz */ |
| if (has_aperf) |
| outp += sprintf(outp, "%8.0f", |
| 1.0 / units * t->aperf / interval_float); |
| |
| /* %Busy */ |
| if (has_aperf) { |
| if (!skip_c0) |
| outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc); |
| else |
| outp += sprintf(outp, "********"); |
| } |
| |
| /* Bzy_MHz */ |
| if (has_aperf) |
| outp += sprintf(outp, "%8.0f", |
| 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float); |
| |
| /* TSC_MHz */ |
| outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float); |
| |
| /* SMI */ |
| if (do_smi) |
| outp += sprintf(outp, "%8d", t->smi_count); |
| |
| /* delta */ |
| if (extra_delta_offset32) |
| outp += sprintf(outp, " %11llu", t->extra_delta32); |
| |
| /* DELTA */ |
| if (extra_delta_offset64) |
| outp += sprintf(outp, " %11llu", t->extra_delta64); |
| /* msr */ |
| if (extra_msr_offset32) |
| outp += sprintf(outp, " 0x%08llx", t->extra_msr32); |
| |
| /* MSR */ |
| if (extra_msr_offset64) |
| outp += sprintf(outp, " 0x%016llx", t->extra_msr64); |
| |
| if (do_nhm_cstates) { |
| if (!skip_c1) |
| outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc); |
| else |
| outp += sprintf(outp, "********"); |
| } |
| |
| /* print per-core data only for 1st thread in core */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) |
| goto done; |
| |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc); |
| if (do_nhm_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc); |
| if (do_snb_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc); |
| |
| if (do_dts) |
| outp += sprintf(outp, "%8d", c->core_temp_c); |
| |
| /* print per-package data only for 1st core in package */ |
| if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| goto done; |
| |
| if (do_ptm) |
| outp += sprintf(outp, "%8d", p->pkg_temp_c); |
| |
| if (do_snb_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc); |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc); |
| if (do_nhm_cstates && !do_slm_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc); |
| if (do_snb_cstates) |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc); |
| if (do_c8_c9_c10) { |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc); |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc); |
| outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc); |
| } |
| |
| /* |
| * If measurement interval exceeds minimum RAPL Joule Counter range, |
| * indicate that results are suspect by printing "**" in fraction place. |
| */ |
| if (interval_float < rapl_joule_counter_range) |
| fmt8 = "%8.2f"; |
| else |
| fmt8 = " %6.0f**"; |
| |
| if (do_rapl && !rapl_joules) { |
| if (do_rapl & RAPL_PKG) |
| outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float); |
| if (do_rapl & RAPL_CORES) |
| outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float); |
| if (do_rapl & RAPL_GFX) |
| outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float); |
| if (do_rapl & RAPL_DRAM) |
| outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float); |
| if (do_rapl & RAPL_PKG_PERF_STATUS) |
| outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); |
| if (do_rapl & RAPL_DRAM_PERF_STATUS) |
| outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); |
| } else if (do_rapl && rapl_joules) { |
| if (do_rapl & RAPL_PKG) |
| outp += sprintf(outp, fmt8, |
| p->energy_pkg * rapl_energy_units); |
| if (do_rapl & RAPL_CORES) |
| outp += sprintf(outp, fmt8, |
| p->energy_cores * rapl_energy_units); |
| if (do_rapl & RAPL_GFX) |
| outp += sprintf(outp, fmt8, |
| p->energy_gfx * rapl_energy_units); |
| if (do_rapl & RAPL_DRAM) |
| outp += sprintf(outp, fmt8, |
| p->energy_dram * rapl_energy_units); |
| if (do_rapl & RAPL_PKG_PERF_STATUS) |
| outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); |
| if (do_rapl & RAPL_DRAM_PERF_STATUS) |
| outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); |
| |
| outp += sprintf(outp, fmt8, interval_float); |
| } |
| done: |
| outp += sprintf(outp, "\n"); |
| |
| return 0; |
| } |
| |
| void flush_stdout() |
| { |
| fputs(output_buffer, stdout); |
| fflush(stdout); |
| outp = output_buffer; |
| } |
| void flush_stderr() |
| { |
| fputs(output_buffer, stderr); |
| outp = output_buffer; |
| } |
| void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| static int printed; |
| |
| if (!printed || !summary_only) |
| print_header(); |
| |
| if (topo.num_cpus > 1) |
| format_counters(&average.threads, &average.cores, |
| &average.packages); |
| |
| printed = 1; |
| |
| if (summary_only) |
| return; |
| |
| for_all_cpus(format_counters, t, c, p); |
| } |
| |
| #define DELTA_WRAP32(new, old) \ |
| if (new > old) { \ |
| old = new - old; \ |
| } else { \ |
| old = 0x100000000 + new - old; \ |
| } |
| |
| void |
| delta_package(struct pkg_data *new, struct pkg_data *old) |
| { |
| old->pc2 = new->pc2 - old->pc2; |
| old->pc3 = new->pc3 - old->pc3; |
| old->pc6 = new->pc6 - old->pc6; |
| old->pc7 = new->pc7 - old->pc7; |
| old->pc8 = new->pc8 - old->pc8; |
| old->pc9 = new->pc9 - old->pc9; |
| old->pc10 = new->pc10 - old->pc10; |
| old->pkg_temp_c = new->pkg_temp_c; |
| |
| DELTA_WRAP32(new->energy_pkg, old->energy_pkg); |
| DELTA_WRAP32(new->energy_cores, old->energy_cores); |
| DELTA_WRAP32(new->energy_gfx, old->energy_gfx); |
| DELTA_WRAP32(new->energy_dram, old->energy_dram); |
| DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status); |
| DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status); |
| } |
| |
| void |
| delta_core(struct core_data *new, struct core_data *old) |
| { |
| old->c3 = new->c3 - old->c3; |
| old->c6 = new->c6 - old->c6; |
| old->c7 = new->c7 - old->c7; |
| old->core_temp_c = new->core_temp_c; |
| } |
| |
| /* |
| * old = new - old |
| */ |
| void |
| delta_thread(struct thread_data *new, struct thread_data *old, |
| struct core_data *core_delta) |
| { |
| old->tsc = new->tsc - old->tsc; |
| |
| /* check for TSC < 1 Mcycles over interval */ |
| if (old->tsc < (1000 * 1000)) |
| errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n" |
| "You can disable all c-states by booting with \"idle=poll\"\n" |
| "or just the deep ones with \"processor.max_cstate=1\""); |
| |
| old->c1 = new->c1 - old->c1; |
| |
| if (has_aperf) { |
| if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { |
| old->aperf = new->aperf - old->aperf; |
| old->mperf = new->mperf - old->mperf; |
| } else { |
| |
| if (!aperf_mperf_unstable) { |
| fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); |
| fprintf(stderr, "* Frequency results do not cover entire interval *\n"); |
| fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); |
| |
| aperf_mperf_unstable = 1; |
| } |
| /* |
| * mperf delta is likely a huge "positive" number |
| * can not use it for calculating c0 time |
| */ |
| skip_c0 = 1; |
| skip_c1 = 1; |
| } |
| } |
| |
| |
| if (use_c1_residency_msr) { |
| /* |
| * Some models have a dedicated C1 residency MSR, |
| * which should be more accurate than the derivation below. |
| */ |
| } else { |
| /* |
| * As counter collection is not atomic, |
| * it is possible for mperf's non-halted cycles + idle states |
| * to exceed TSC's all cycles: show c1 = 0% in that case. |
| */ |
| if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) |
| old->c1 = 0; |
| else { |
| /* normal case, derive c1 */ |
| old->c1 = old->tsc - old->mperf - core_delta->c3 |
| - core_delta->c6 - core_delta->c7; |
| } |
| } |
| |
| if (old->mperf == 0) { |
| if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); |
| old->mperf = 1; /* divide by 0 protection */ |
| } |
| |
| old->extra_delta32 = new->extra_delta32 - old->extra_delta32; |
| old->extra_delta32 &= 0xFFFFFFFF; |
| |
| old->extra_delta64 = new->extra_delta64 - old->extra_delta64; |
| |
| /* |
| * Extra MSR is just a snapshot, simply copy latest w/o subtracting |
| */ |
| old->extra_msr32 = new->extra_msr32; |
| old->extra_msr64 = new->extra_msr64; |
| |
| if (do_smi) |
| old->smi_count = new->smi_count - old->smi_count; |
| } |
| |
| int delta_cpu(struct thread_data *t, struct core_data *c, |
| struct pkg_data *p, struct thread_data *t2, |
| struct core_data *c2, struct pkg_data *p2) |
| { |
| /* calculate core delta only for 1st thread in core */ |
| if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) |
| delta_core(c, c2); |
| |
| /* always calculate thread delta */ |
| delta_thread(t, t2, c2); /* c2 is core delta */ |
| |
| /* calculate package delta only for 1st core in package */ |
| if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) |
| delta_package(p, p2); |
| |
| return 0; |
| } |
| |
| void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| t->tsc = 0; |
| t->aperf = 0; |
| t->mperf = 0; |
| t->c1 = 0; |
| |
| t->smi_count = 0; |
| t->extra_delta32 = 0; |
| t->extra_delta64 = 0; |
| |
| /* tells format_counters to dump all fields from this set */ |
| t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; |
| |
| c->c3 = 0; |
| c->c6 = 0; |
| c->c7 = 0; |
| c->core_temp_c = 0; |
| |
| p->pc2 = 0; |
| p->pc3 = 0; |
| p->pc6 = 0; |
| p->pc7 = 0; |
| p->pc8 = 0; |
| p->pc9 = 0; |
| p->pc10 = 0; |
| |
| p->energy_pkg = 0; |
| p->energy_dram = 0; |
| p->energy_cores = 0; |
| p->energy_gfx = 0; |
| p->rapl_pkg_perf_status = 0; |
| p->rapl_dram_perf_status = 0; |
| p->pkg_temp_c = 0; |
| } |
| int sum_counters(struct thread_data *t, struct core_data *c, |
| struct pkg_data *p) |
| { |
| average.threads.tsc += t->tsc; |
| average.threads.aperf += t->aperf; |
| average.threads.mperf += t->mperf; |
| average.threads.c1 += t->c1; |
| |
| average.threads.extra_delta32 += t->extra_delta32; |
| average.threads.extra_delta64 += t->extra_delta64; |
| |
| /* sum per-core values only for 1st thread in core */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) |
| return 0; |
| |
| average.cores.c3 += c->c3; |
| average.cores.c6 += c->c6; |
| average.cores.c7 += c->c7; |
| |
| average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c); |
| |
| /* sum per-pkg values only for 1st core in pkg */ |
| if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| average.packages.pc2 += p->pc2; |
| average.packages.pc3 += p->pc3; |
| average.packages.pc6 += p->pc6; |
| average.packages.pc7 += p->pc7; |
| average.packages.pc8 += p->pc8; |
| average.packages.pc9 += p->pc9; |
| average.packages.pc10 += p->pc10; |
| |
| average.packages.energy_pkg += p->energy_pkg; |
| average.packages.energy_dram += p->energy_dram; |
| average.packages.energy_cores += p->energy_cores; |
| average.packages.energy_gfx += p->energy_gfx; |
| |
| average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c); |
| |
| average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status; |
| average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status; |
| return 0; |
| } |
| /* |
| * sum the counters for all cpus in the system |
| * compute the weighted average |
| */ |
| void compute_average(struct thread_data *t, struct core_data *c, |
| struct pkg_data *p) |
| { |
| clear_counters(&average.threads, &average.cores, &average.packages); |
| |
| for_all_cpus(sum_counters, t, c, p); |
| |
| average.threads.tsc /= topo.num_cpus; |
| average.threads.aperf /= topo.num_cpus; |
| average.threads.mperf /= topo.num_cpus; |
| average.threads.c1 /= topo.num_cpus; |
| |
| average.threads.extra_delta32 /= topo.num_cpus; |
| average.threads.extra_delta32 &= 0xFFFFFFFF; |
| |
| average.threads.extra_delta64 /= topo.num_cpus; |
| |
| average.cores.c3 /= topo.num_cores; |
| average.cores.c6 /= topo.num_cores; |
| average.cores.c7 /= topo.num_cores; |
| |
| average.packages.pc2 /= topo.num_packages; |
| average.packages.pc3 /= topo.num_packages; |
| average.packages.pc6 /= topo.num_packages; |
| average.packages.pc7 /= topo.num_packages; |
| |
| average.packages.pc8 /= topo.num_packages; |
| average.packages.pc9 /= topo.num_packages; |
| average.packages.pc10 /= topo.num_packages; |
| } |
| |
| static unsigned long long rdtsc(void) |
| { |
| unsigned int low, high; |
| |
| asm volatile("rdtsc" : "=a" (low), "=d" (high)); |
| |
| return low | ((unsigned long long)high) << 32; |
| } |
| |
| |
| /* |
| * get_counters(...) |
| * migrate to cpu |
| * acquire and record local counters for that cpu |
| */ |
| int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| int cpu = t->cpu_id; |
| unsigned long long msr; |
| |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| t->tsc = rdtsc(); /* we are running on local CPU of interest */ |
| |
| if (has_aperf) { |
| if (get_msr(cpu, MSR_IA32_APERF, &t->aperf)) |
| return -3; |
| if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf)) |
| return -4; |
| } |
| |
| if (do_smi) { |
| if (get_msr(cpu, MSR_SMI_COUNT, &msr)) |
| return -5; |
| t->smi_count = msr & 0xFFFFFFFF; |
| } |
| if (extra_delta_offset32) { |
| if (get_msr(cpu, extra_delta_offset32, &msr)) |
| return -5; |
| t->extra_delta32 = msr & 0xFFFFFFFF; |
| } |
| |
| if (extra_delta_offset64) |
| if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) |
| return -5; |
| |
| if (extra_msr_offset32) { |
| if (get_msr(cpu, extra_msr_offset32, &msr)) |
| return -5; |
| t->extra_msr32 = msr & 0xFFFFFFFF; |
| } |
| |
| if (extra_msr_offset64) |
| if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) |
| return -5; |
| |
| if (use_c1_residency_msr) { |
| if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1)) |
| return -6; |
| } |
| |
| /* collect core counters only for 1st thread in core */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) |
| return 0; |
| |
| if (do_nhm_cstates && !do_slm_cstates) { |
| if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) |
| return -6; |
| } |
| |
| if (do_nhm_cstates) { |
| if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) |
| return -7; |
| } |
| |
| if (do_snb_cstates) |
| if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) |
| return -8; |
| |
| if (do_dts) { |
| if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) |
| return -9; |
| c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); |
| } |
| |
| |
| /* collect package counters only for 1st core in package */ |
| if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| if (do_nhm_cstates && !do_slm_cstates) { |
| if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) |
| return -9; |
| if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) |
| return -10; |
| } |
| if (do_snb_cstates) { |
| if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) |
| return -11; |
| if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) |
| return -12; |
| } |
| if (do_c8_c9_c10) { |
| if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8)) |
| return -13; |
| if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9)) |
| return -13; |
| if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10)) |
| return -13; |
| } |
| if (do_rapl & RAPL_PKG) { |
| if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr)) |
| return -13; |
| p->energy_pkg = msr & 0xFFFFFFFF; |
| } |
| if (do_rapl & RAPL_CORES) { |
| if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr)) |
| return -14; |
| p->energy_cores = msr & 0xFFFFFFFF; |
| } |
| if (do_rapl & RAPL_DRAM) { |
| if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr)) |
| return -15; |
| p->energy_dram = msr & 0xFFFFFFFF; |
| } |
| if (do_rapl & RAPL_GFX) { |
| if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr)) |
| return -16; |
| p->energy_gfx = msr & 0xFFFFFFFF; |
| } |
| if (do_rapl & RAPL_PKG_PERF_STATUS) { |
| if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr)) |
| return -16; |
| p->rapl_pkg_perf_status = msr & 0xFFFFFFFF; |
| } |
| if (do_rapl & RAPL_DRAM_PERF_STATUS) { |
| if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr)) |
| return -16; |
| p->rapl_dram_perf_status = msr & 0xFFFFFFFF; |
| } |
| if (do_ptm) { |
| if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) |
| return -17; |
| p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); |
| } |
| return 0; |
| } |
| |
| void print_verbose_header(void) |
| { |
| unsigned long long msr; |
| unsigned int ratio; |
| |
| if (!do_nhm_platform_info) |
| return; |
| |
| get_msr(0, MSR_NHM_PLATFORM_INFO, &msr); |
| |
| fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); |
| |
| ratio = (msr >> 40) & 0xFF; |
| fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 8) & 0xFF; |
| fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", |
| ratio, bclk, ratio * bclk); |
| |
| get_msr(0, MSR_IA32_POWER_CTL, &msr); |
| fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", |
| msr, msr & 0x2 ? "EN" : "DIS"); |
| |
| if (!do_ivt_turbo_ratio_limit) |
| goto print_nhm_turbo_ratio_limits; |
| |
| get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); |
| |
| fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); |
| |
| ratio = (msr >> 56) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 48) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 40) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 32) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 24) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 16) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 8) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 0) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| print_nhm_turbo_ratio_limits: |
| get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr); |
| |
| #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) |
| #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) |
| |
| fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr); |
| |
| fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ", |
| (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "", |
| (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "", |
| (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "", |
| (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "", |
| (msr & (1 << 15)) ? "" : "UN", |
| (unsigned int)msr & 7); |
| |
| |
| switch(msr & 0x7) { |
| case 0: |
| fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0"); |
| break; |
| case 1: |
| fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0"); |
| break; |
| case 2: |
| fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3"); |
| break; |
| case 3: |
| fprintf(stderr, do_slm_cstates ? "invalid" : "pc6"); |
| break; |
| case 4: |
| fprintf(stderr, do_slm_cstates ? "pc4" : "pc7"); |
| break; |
| case 5: |
| fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid"); |
| break; |
| case 6: |
| fprintf(stderr, do_slm_cstates ? "pc6" : "invalid"); |
| break; |
| case 7: |
| fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited"); |
| break; |
| default: |
| fprintf(stderr, "invalid"); |
| } |
| fprintf(stderr, ")\n"); |
| |
| if (!do_nhm_turbo_ratio_limit) |
| return; |
| |
| get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr); |
| |
| fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); |
| |
| ratio = (msr >> 56) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 48) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 40) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 32) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 24) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 16) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 8) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| ratio = (msr >> 0) & 0xFF; |
| if (ratio) |
| fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", |
| ratio, bclk, ratio * bclk); |
| |
| } |
| |
| void free_all_buffers(void) |
| { |
| CPU_FREE(cpu_present_set); |
| cpu_present_set = NULL; |
| cpu_present_set = 0; |
| |
| CPU_FREE(cpu_affinity_set); |
| cpu_affinity_set = NULL; |
| cpu_affinity_setsize = 0; |
| |
| free(thread_even); |
| free(core_even); |
| free(package_even); |
| |
| thread_even = NULL; |
| core_even = NULL; |
| package_even = NULL; |
| |
| free(thread_odd); |
| free(core_odd); |
| free(package_odd); |
| |
| thread_odd = NULL; |
| core_odd = NULL; |
| package_odd = NULL; |
| |
| free(output_buffer); |
| output_buffer = NULL; |
| outp = NULL; |
| } |
| |
| /* |
| * Open a file, and exit on failure |
| */ |
| FILE *fopen_or_die(const char *path, const char *mode) |
| { |
| FILE *filep = fopen(path, "r"); |
| if (!filep) |
| err(1, "%s: open failed", path); |
| return filep; |
| } |
| |
| /* |
| * Parse a file containing a single int. |
| */ |
| int parse_int_file(const char *fmt, ...) |
| { |
| va_list args; |
| char path[PATH_MAX]; |
| FILE *filep; |
| int value; |
| |
| va_start(args, fmt); |
| vsnprintf(path, sizeof(path), fmt, args); |
| va_end(args); |
| filep = fopen_or_die(path, "r"); |
| if (fscanf(filep, "%d", &value) != 1) |
| err(1, "%s: failed to parse number from file", path); |
| fclose(filep); |
| return value; |
| } |
| |
| /* |
| * cpu_is_first_sibling_in_core(cpu) |
| * return 1 if given CPU is 1st HT sibling in the core |
| */ |
| int cpu_is_first_sibling_in_core(int cpu) |
| { |
| return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); |
| } |
| |
| /* |
| * cpu_is_first_core_in_package(cpu) |
| * return 1 if given CPU is 1st core in package |
| */ |
| int cpu_is_first_core_in_package(int cpu) |
| { |
| return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); |
| } |
| |
| int get_physical_package_id(int cpu) |
| { |
| return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); |
| } |
| |
| int get_core_id(int cpu) |
| { |
| return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); |
| } |
| |
| int get_num_ht_siblings(int cpu) |
| { |
| char path[80]; |
| FILE *filep; |
| int sib1, sib2; |
| int matches; |
| char character; |
| |
| sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); |
| filep = fopen_or_die(path, "r"); |
| /* |
| * file format: |
| * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) |
| * otherwinse 1 sibling (self). |
| */ |
| matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); |
| |
| fclose(filep); |
| |
| if (matches == 3) |
| return 2; |
| else |
| return 1; |
| } |
| |
| /* |
| * run func(thread, core, package) in topology order |
| * skip non-present cpus |
| */ |
| |
| int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, |
| struct pkg_data *, struct thread_data *, struct core_data *, |
| struct pkg_data *), struct thread_data *thread_base, |
| struct core_data *core_base, struct pkg_data *pkg_base, |
| struct thread_data *thread_base2, struct core_data *core_base2, |
| struct pkg_data *pkg_base2) |
| { |
| int retval, pkg_no, core_no, thread_no; |
| |
| for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { |
| for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { |
| for (thread_no = 0; thread_no < |
| topo.num_threads_per_core; ++thread_no) { |
| struct thread_data *t, *t2; |
| struct core_data *c, *c2; |
| struct pkg_data *p, *p2; |
| |
| t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); |
| |
| if (cpu_is_not_present(t->cpu_id)) |
| continue; |
| |
| t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); |
| |
| c = GET_CORE(core_base, core_no, pkg_no); |
| c2 = GET_CORE(core_base2, core_no, pkg_no); |
| |
| p = GET_PKG(pkg_base, pkg_no); |
| p2 = GET_PKG(pkg_base2, pkg_no); |
| |
| retval = func(t, c, p, t2, c2, p2); |
| if (retval) |
| return retval; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * run func(cpu) on every cpu in /proc/stat |
| * return max_cpu number |
| */ |
| int for_all_proc_cpus(int (func)(int)) |
| { |
| FILE *fp; |
| int cpu_num; |
| int retval; |
| |
| fp = fopen_or_die(proc_stat, "r"); |
| |
| retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); |
| if (retval != 0) |
| err(1, "%s: failed to parse format", proc_stat); |
| |
| while (1) { |
| retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); |
| if (retval != 1) |
| break; |
| |
| retval = func(cpu_num); |
| if (retval) { |
| fclose(fp); |
| return(retval); |
| } |
| } |
| fclose(fp); |
| return 0; |
| } |
| |
| void re_initialize(void) |
| { |
| free_all_buffers(); |
| setup_all_buffers(); |
| printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); |
| } |
| |
| |
| /* |
| * count_cpus() |
| * remember the last one seen, it will be the max |
| */ |
| int count_cpus(int cpu) |
| { |
| if (topo.max_cpu_num < cpu) |
| topo.max_cpu_num = cpu; |
| |
| topo.num_cpus += 1; |
| return 0; |
| } |
| int mark_cpu_present(int cpu) |
| { |
| CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); |
| return 0; |
| } |
| |
| void turbostat_loop() |
| { |
| int retval; |
| int restarted = 0; |
| |
| restart: |
| restarted++; |
| |
| retval = for_all_cpus(get_counters, EVEN_COUNTERS); |
| if (retval < -1) { |
| exit(retval); |
| } else if (retval == -1) { |
| if (restarted > 1) { |
| exit(retval); |
| } |
| re_initialize(); |
| goto restart; |
| } |
| restarted = 0; |
| gettimeofday(&tv_even, (struct timezone *)NULL); |
| |
| while (1) { |
| if (for_all_proc_cpus(cpu_is_not_present)) { |
| re_initialize(); |
| goto restart; |
| } |
| sleep(interval_sec); |
| retval = for_all_cpus(get_counters, ODD_COUNTERS); |
| if (retval < -1) { |
| exit(retval); |
| } else if (retval == -1) { |
| re_initialize(); |
| goto restart; |
| } |
| gettimeofday(&tv_odd, (struct timezone *)NULL); |
| timersub(&tv_odd, &tv_even, &tv_delta); |
| for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); |
| compute_average(EVEN_COUNTERS); |
| format_all_counters(EVEN_COUNTERS); |
| flush_stdout(); |
| sleep(interval_sec); |
| retval = for_all_cpus(get_counters, EVEN_COUNTERS); |
| if (retval < -1) { |
| exit(retval); |
| } else if (retval == -1) { |
| re_initialize(); |
| goto restart; |
| } |
| gettimeofday(&tv_even, (struct timezone *)NULL); |
| timersub(&tv_even, &tv_odd, &tv_delta); |
| for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); |
| compute_average(ODD_COUNTERS); |
| format_all_counters(ODD_COUNTERS); |
| flush_stdout(); |
| } |
| } |
| |
| void check_dev_msr() |
| { |
| struct stat sb; |
| |
| if (stat("/dev/cpu/0/msr", &sb)) |
| err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" "); |
| } |
| |
| void check_permissions() |
| { |
| struct __user_cap_header_struct cap_header_data; |
| cap_user_header_t cap_header = &cap_header_data; |
| struct __user_cap_data_struct cap_data_data; |
| cap_user_data_t cap_data = &cap_data_data; |
| extern int capget(cap_user_header_t hdrp, cap_user_data_t datap); |
| int do_exit = 0; |
| |
| /* check for CAP_SYS_RAWIO */ |
| cap_header->pid = getpid(); |
| cap_header->version = _LINUX_CAPABILITY_VERSION; |
| if (capget(cap_header, cap_data) < 0) |
| err(-6, "capget(2) failed"); |
| |
| if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) { |
| do_exit++; |
| warnx("capget(CAP_SYS_RAWIO) failed," |
| " try \"# setcap cap_sys_rawio=ep %s\"", progname); |
| } |
| |
| /* test file permissions */ |
| if (euidaccess("/dev/cpu/0/msr", R_OK)) { |
| do_exit++; |
| warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr"); |
| } |
| |
| /* if all else fails, thell them to be root */ |
| if (do_exit) |
| if (getuid() != 0) |
| warnx("... or simply run as root"); |
| |
| if (do_exit) |
| exit(-6); |
| } |
| |
| /* |
| * NHM adds support for additional MSRs: |
| * |
| * MSR_SMI_COUNT 0x00000034 |
| * |
| * MSR_NHM_PLATFORM_INFO 0x000000ce |
| * MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2 |
| * |
| * MSR_PKG_C3_RESIDENCY 0x000003f8 |
| * MSR_PKG_C6_RESIDENCY 0x000003f9 |
| * MSR_CORE_C3_RESIDENCY 0x000003fc |
| * MSR_CORE_C6_RESIDENCY 0x000003fd |
| * |
| */ |
| int has_nhm_msrs(unsigned int family, unsigned int model) |
| { |
| if (!genuine_intel) |
| return 0; |
| |
| if (family != 6) |
| return 0; |
| |
| switch (model) { |
| case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ |
| case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ |
| case 0x1F: /* Core i7 and i5 Processor - Nehalem */ |
| case 0x25: /* Westmere Client - Clarkdale, Arrandale */ |
| case 0x2C: /* Westmere EP - Gulftown */ |
| case 0x2A: /* SNB */ |
| case 0x2D: /* SNB Xeon */ |
| case 0x3A: /* IVB */ |
| case 0x3E: /* IVB Xeon */ |
| case 0x3C: /* HSW */ |
| case 0x3F: /* HSX */ |
| case 0x45: /* HSW */ |
| case 0x46: /* HSW */ |
| case 0x37: /* BYT */ |
| case 0x4D: /* AVN */ |
| case 0x3D: /* BDW */ |
| case 0x4F: /* BDX */ |
| case 0x56: /* BDX-DE */ |
| case 0x2E: /* Nehalem-EX Xeon - Beckton */ |
| case 0x2F: /* Westmere-EX Xeon - Eagleton */ |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model) |
| { |
| if (!has_nhm_msrs(family, model)) |
| return 0; |
| |
| switch (model) { |
| /* Nehalem compatible, but do not include turbo-ratio limit support */ |
| case 0x2E: /* Nehalem-EX Xeon - Beckton */ |
| case 0x2F: /* Westmere-EX Xeon - Eagleton */ |
| return 0; |
| default: |
| return 1; |
| } |
| } |
| int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) |
| { |
| if (!genuine_intel) |
| return 0; |
| |
| if (family != 6) |
| return 0; |
| |
| switch (model) { |
| case 0x3E: /* IVB Xeon */ |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| /* |
| * print_epb() |
| * Decode the ENERGY_PERF_BIAS MSR |
| */ |
| int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| unsigned long long msr; |
| char *epb_string; |
| int cpu; |
| |
| if (!has_epb) |
| return 0; |
| |
| cpu = t->cpu_id; |
| |
| /* EPB is per-package */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr)) |
| return 0; |
| |
| switch (msr & 0x7) { |
| case ENERGY_PERF_BIAS_PERFORMANCE: |
| epb_string = "performance"; |
| break; |
| case ENERGY_PERF_BIAS_NORMAL: |
| epb_string = "balanced"; |
| break; |
| case ENERGY_PERF_BIAS_POWERSAVE: |
| epb_string = "powersave"; |
| break; |
| default: |
| epb_string = "custom"; |
| break; |
| } |
| fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); |
| |
| return 0; |
| } |
| |
| /* |
| * print_perf_limit() |
| */ |
| int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| unsigned long long msr; |
| int cpu; |
| |
| cpu = t->cpu_id; |
| |
| /* per-package */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| if (do_core_perf_limit_reasons) { |
| get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr); |
| fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); |
| fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)", |
| (msr & 1 << 0) ? "PROCHOT, " : "", |
| (msr & 1 << 1) ? "ThermStatus, " : "", |
| (msr & 1 << 2) ? "bit2, " : "", |
| (msr & 1 << 4) ? "Graphics, " : "", |
| (msr & 1 << 5) ? "Auto-HWP, " : "", |
| (msr & 1 << 6) ? "VR-Therm, " : "", |
| (msr & 1 << 8) ? "Amps, " : "", |
| (msr & 1 << 9) ? "CorePwr, " : "", |
| (msr & 1 << 10) ? "PkgPwrL1, " : "", |
| (msr & 1 << 11) ? "PkgPwrL2, " : "", |
| (msr & 1 << 12) ? "MultiCoreTurbo, " : "", |
| (msr & 1 << 13) ? "Transitions, " : "", |
| (msr & 1 << 14) ? "bit14, " : "", |
| (msr & 1 << 15) ? "bit15, " : ""); |
| fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n", |
| (msr & 1 << 16) ? "PROCHOT, " : "", |
| (msr & 1 << 17) ? "ThermStatus, " : "", |
| (msr & 1 << 18) ? "bit18, " : "", |
| (msr & 1 << 20) ? "Graphics, " : "", |
| (msr & 1 << 21) ? "Auto-HWP, " : "", |
| (msr & 1 << 22) ? "VR-Therm, " : "", |
| (msr & 1 << 24) ? "Amps, " : "", |
| (msr & 1 << 25) ? "CorePwr, " : "", |
| (msr & 1 << 26) ? "PkgPwrL1, " : "", |
| (msr & 1 << 27) ? "PkgPwrL2, " : "", |
| (msr & 1 << 28) ? "MultiCoreTurbo, " : "", |
| (msr & 1 << 29) ? "Transitions, " : "", |
| (msr & 1 << 30) ? "bit30, " : "", |
| (msr & 1 << 31) ? "bit31, " : ""); |
| |
| } |
| if (do_gfx_perf_limit_reasons) { |
| get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr); |
| fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); |
| fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)", |
| (msr & 1 << 0) ? "PROCHOT, " : "", |
| (msr & 1 << 1) ? "ThermStatus, " : "", |
| (msr & 1 << 4) ? "Graphics, " : "", |
| (msr & 1 << 6) ? "VR-Therm, " : "", |
| (msr & 1 << 8) ? "Amps, " : "", |
| (msr & 1 << 9) ? "GFXPwr, " : "", |
| (msr & 1 << 10) ? "PkgPwrL1, " : "", |
| (msr & 1 << 11) ? "PkgPwrL2, " : ""); |
| fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n", |
| (msr & 1 << 16) ? "PROCHOT, " : "", |
| (msr & 1 << 17) ? "ThermStatus, " : "", |
| (msr & 1 << 20) ? "Graphics, " : "", |
| (msr & 1 << 22) ? "VR-Therm, " : "", |
| (msr & 1 << 24) ? "Amps, " : "", |
| (msr & 1 << 25) ? "GFXPwr, " : "", |
| (msr & 1 << 26) ? "PkgPwrL1, " : "", |
| (msr & 1 << 27) ? "PkgPwrL2, " : ""); |
| } |
| if (do_ring_perf_limit_reasons) { |
| get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr); |
| fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr); |
| fprintf(stderr, " (Active: %s%s%s%s%s%s)", |
| (msr & 1 << 0) ? "PROCHOT, " : "", |
| (msr & 1 << 1) ? "ThermStatus, " : "", |
| (msr & 1 << 6) ? "VR-Therm, " : "", |
| (msr & 1 << 8) ? "Amps, " : "", |
| (msr & 1 << 10) ? "PkgPwrL1, " : "", |
| (msr & 1 << 11) ? "PkgPwrL2, " : ""); |
| fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n", |
| (msr & 1 << 16) ? "PROCHOT, " : "", |
| (msr & 1 << 17) ? "ThermStatus, " : "", |
| (msr & 1 << 22) ? "VR-Therm, " : "", |
| (msr & 1 << 24) ? "Amps, " : "", |
| (msr & 1 << 26) ? "PkgPwrL1, " : "", |
| (msr & 1 << 27) ? "PkgPwrL2, " : ""); |
| } |
| return 0; |
| } |
| |
| #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */ |
| #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */ |
| |
| double get_tdp(model) |
| { |
| unsigned long long msr; |
| |
| if (do_rapl & RAPL_PKG_POWER_INFO) |
| if (!get_msr(0, MSR_PKG_POWER_INFO, &msr)) |
| return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units; |
| |
| switch (model) { |
| case 0x37: |
| case 0x4D: |
| return 30.0; |
| default: |
| return 135.0; |
| } |
| } |
| |
| |
| /* |
| * rapl_probe() |
| * |
| * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units |
| */ |
| void rapl_probe(unsigned int family, unsigned int model) |
| { |
| unsigned long long msr; |
| unsigned int time_unit; |
| double tdp; |
| |
| if (!genuine_intel) |
| return; |
| |
| if (family != 6) |
| return; |
| |
| switch (model) { |
| case 0x2A: |
| case 0x3A: |
| case 0x3C: /* HSW */ |
| case 0x45: /* HSW */ |
| case 0x46: /* HSW */ |
| case 0x3D: /* BDW */ |
| do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO; |
| break; |
| case 0x3F: /* HSX */ |
| case 0x4F: /* BDX */ |
| case 0x56: /* BDX-DE */ |
| do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO; |
| break; |
| case 0x2D: |
| case 0x3E: |
| do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO; |
| break; |
| case 0x37: /* BYT */ |
| case 0x4D: /* AVN */ |
| do_rapl = RAPL_PKG | RAPL_CORES ; |
| break; |
| default: |
| return; |
| } |
| |
| /* units on package 0, verify later other packages match */ |
| if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr)) |
| return; |
| |
| rapl_power_units = 1.0 / (1 << (msr & 0xF)); |
| if (model == 0x37) |
| rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000; |
| else |
| rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F)); |
| |
| time_unit = msr >> 16 & 0xF; |
| if (time_unit == 0) |
| time_unit = 0xA; |
| |
| rapl_time_units = 1.0 / (1 << (time_unit)); |
| |
| tdp = get_tdp(model); |
| |
| rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp; |
| if (verbose) |
| fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); |
| |
| return; |
| } |
| |
| void perf_limit_reasons_probe(family, model) |
| { |
| if (!genuine_intel) |
| return; |
| |
| if (family != 6) |
| return; |
| |
| switch (model) { |
| case 0x3C: /* HSW */ |
| case 0x45: /* HSW */ |
| case 0x46: /* HSW */ |
| do_gfx_perf_limit_reasons = 1; |
| case 0x3F: /* HSX */ |
| do_core_perf_limit_reasons = 1; |
| do_ring_perf_limit_reasons = 1; |
| default: |
| return; |
| } |
| } |
| |
| int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| unsigned long long msr; |
| unsigned int dts; |
| int cpu; |
| |
| if (!(do_dts || do_ptm)) |
| return 0; |
| |
| cpu = t->cpu_id; |
| |
| /* DTS is per-core, no need to print for each thread */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) |
| return 0; |
| |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) { |
| if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) |
| return 0; |
| |
| dts = (msr >> 16) & 0x7F; |
| fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", |
| cpu, msr, tcc_activation_temp - dts); |
| |
| #ifdef THERM_DEBUG |
| if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr)) |
| return 0; |
| |
| dts = (msr >> 16) & 0x7F; |
| dts2 = (msr >> 8) & 0x7F; |
| fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", |
| cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); |
| #endif |
| } |
| |
| |
| if (do_dts) { |
| unsigned int resolution; |
| |
| if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) |
| return 0; |
| |
| dts = (msr >> 16) & 0x7F; |
| resolution = (msr >> 27) & 0xF; |
| fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", |
| cpu, msr, tcc_activation_temp - dts, resolution); |
| |
| #ifdef THERM_DEBUG |
| if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr)) |
| return 0; |
| |
| dts = (msr >> 16) & 0x7F; |
| dts2 = (msr >> 8) & 0x7F; |
| fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", |
| cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| void print_power_limit_msr(int cpu, unsigned long long msr, char *label) |
| { |
| fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", |
| cpu, label, |
| ((msr >> 15) & 1) ? "EN" : "DIS", |
| ((msr >> 0) & 0x7FFF) * rapl_power_units, |
| (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units, |
| (((msr >> 16) & 1) ? "EN" : "DIS")); |
| |
| return; |
| } |
| |
| int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| unsigned long long msr; |
| int cpu; |
| |
| if (!do_rapl) |
| return 0; |
| |
| /* RAPL counters are per package, so print only for 1st thread/package */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| cpu = t->cpu_id; |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr)) |
| return -1; |
| |
| if (verbose) { |
| fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " |
| "(%f Watts, %f Joules, %f sec.)\n", cpu, msr, |
| rapl_power_units, rapl_energy_units, rapl_time_units); |
| } |
| if (do_rapl & RAPL_PKG_POWER_INFO) { |
| |
| if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr)) |
| return -5; |
| |
| |
| fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", |
| cpu, msr, |
| ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); |
| |
| } |
| if (do_rapl & RAPL_PKG) { |
| |
| if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr)) |
| return -9; |
| |
| fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", |
| cpu, msr, (msr >> 63) & 1 ? "": "UN"); |
| |
| print_power_limit_msr(cpu, msr, "PKG Limit #1"); |
| fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", |
| cpu, |
| ((msr >> 47) & 1) ? "EN" : "DIS", |
| ((msr >> 32) & 0x7FFF) * rapl_power_units, |
| (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units, |
| ((msr >> 48) & 1) ? "EN" : "DIS"); |
| } |
| |
| if (do_rapl & RAPL_DRAM) { |
| if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr)) |
| return -6; |
| |
| |
| fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", |
| cpu, msr, |
| ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, |
| ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); |
| |
| |
| if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr)) |
| return -9; |
| fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", |
| cpu, msr, (msr >> 31) & 1 ? "": "UN"); |
| |
| print_power_limit_msr(cpu, msr, "DRAM Limit"); |
| } |
| if (do_rapl & RAPL_CORE_POLICY) { |
| if (verbose) { |
| if (get_msr(cpu, MSR_PP0_POLICY, &msr)) |
| return -7; |
| |
| fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); |
| } |
| } |
| if (do_rapl & RAPL_CORES) { |
| if (verbose) { |
| |
| if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr)) |
| return -9; |
| fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", |
| cpu, msr, (msr >> 31) & 1 ? "": "UN"); |
| print_power_limit_msr(cpu, msr, "Cores Limit"); |
| } |
| } |
| if (do_rapl & RAPL_GFX) { |
| if (verbose) { |
| if (get_msr(cpu, MSR_PP1_POLICY, &msr)) |
| return -8; |
| |
| fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); |
| |
| if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr)) |
| return -9; |
| fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", |
| cpu, msr, (msr >> 31) & 1 ? "": "UN"); |
| print_power_limit_msr(cpu, msr, "GFX Limit"); |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * SNB adds support for additional MSRs: |
| * |
| * MSR_PKG_C7_RESIDENCY 0x000003fa |
| * MSR_CORE_C7_RESIDENCY 0x000003fe |
| * MSR_PKG_C2_RESIDENCY 0x0000060d |
| */ |
| |
| int has_snb_msrs(unsigned int family, unsigned int model) |
| { |
| if (!genuine_intel) |
| return 0; |
| |
| switch (model) { |
| case 0x2A: |
| case 0x2D: |
| case 0x3A: /* IVB */ |
| case 0x3E: /* IVB Xeon */ |
| case 0x3C: /* HSW */ |
| case 0x3F: /* HSW */ |
| case 0x45: /* HSW */ |
| case 0x46: /* HSW */ |
| case 0x3D: /* BDW */ |
| case 0x4F: /* BDX */ |
| case 0x56: /* BDX-DE */ |
| return 1; |
| } |
| return 0; |
| } |
| |
| /* |
| * HSW adds support for additional MSRs: |
| * |
| * MSR_PKG_C8_RESIDENCY 0x00000630 |
| * MSR_PKG_C9_RESIDENCY 0x00000631 |
| * MSR_PKG_C10_RESIDENCY 0x00000632 |
| */ |
| int has_hsw_msrs(unsigned int family, unsigned int model) |
| { |
| if (!genuine_intel) |
| return 0; |
| |
| switch (model) { |
| case 0x45: /* HSW */ |
| case 0x3D: /* BDW */ |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| int is_slm(unsigned int family, unsigned int model) |
| { |
| if (!genuine_intel) |
| return 0; |
| switch (model) { |
| case 0x37: /* BYT */ |
| case 0x4D: /* AVN */ |
| return 1; |
| } |
| return 0; |
| } |
| |
| #define SLM_BCLK_FREQS 5 |
| double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0}; |
| |
| double slm_bclk(void) |
| { |
| unsigned long long msr = 3; |
| unsigned int i; |
| double freq; |
| |
| if (get_msr(0, MSR_FSB_FREQ, &msr)) |
| fprintf(stderr, "SLM BCLK: unknown\n"); |
| |
| i = msr & 0xf; |
| if (i >= SLM_BCLK_FREQS) { |
| fprintf(stderr, "SLM BCLK[%d] invalid\n", i); |
| msr = 3; |
| } |
| freq = slm_freq_table[i]; |
| |
| fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq); |
| |
| return freq; |
| } |
| |
| double discover_bclk(unsigned int family, unsigned int model) |
| { |
| if (has_snb_msrs(family, model)) |
| return 100.00; |
| else if (is_slm(family, model)) |
| return slm_bclk(); |
| else |
| return 133.33; |
| } |
| |
| /* |
| * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where |
| * the Thermal Control Circuit (TCC) activates. |
| * This is usually equal to tjMax. |
| * |
| * Older processors do not have this MSR, so there we guess, |
| * but also allow cmdline over-ride with -T. |
| * |
| * Several MSR temperature values are in units of degrees-C |
| * below this value, including the Digital Thermal Sensor (DTS), |
| * Package Thermal Management Sensor (PTM), and thermal event thresholds. |
| */ |
| int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
| { |
| unsigned long long msr; |
| unsigned int target_c_local; |
| int cpu; |
| |
| /* tcc_activation_temp is used only for dts or ptm */ |
| if (!(do_dts || do_ptm)) |
| return 0; |
| |
| /* this is a per-package concept */ |
| if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) |
| return 0; |
| |
| cpu = t->cpu_id; |
| if (cpu_migrate(cpu)) { |
| fprintf(stderr, "Could not migrate to CPU %d\n", cpu); |
| return -1; |
| } |
| |
| if (tcc_activation_temp_override != 0) { |
| tcc_activation_temp = tcc_activation_temp_override; |
| fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n", |
| cpu, tcc_activation_temp); |
| return 0; |
| } |
| |
| /* Temperature Target MSR is Nehalem and newer only */ |
| if (!do_nhm_platform_info) |
| goto guess; |
| |
| if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr)) |
| goto guess; |
| |
| target_c_local = (msr >> 16) & 0xFF; |
| |
| if (verbose) |
| fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", |
| cpu, msr, target_c_local); |
| |
| if (!target_c_local) |
| goto guess; |
| |
| tcc_activation_temp = target_c_local; |
| |
| return 0; |
| |
| guess: |
| tcc_activation_temp = TJMAX_DEFAULT; |
| fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", |
| cpu, tcc_activation_temp); |
| |
| return 0; |
| } |
| void check_cpuid() |
| { |
| unsigned int eax, ebx, ecx, edx, max_level; |
| unsigned int fms, family, model, stepping; |
| |
| eax = ebx = ecx = edx = 0; |
| |
| __get_cpuid(0, &max_level, &ebx, &ecx, &edx); |
| |
| if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) |
| genuine_intel = 1; |
| |
| if (verbose) |
| fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", |
| (char *)&ebx, (char *)&edx, (char *)&ecx); |
| |
| __get_cpuid(1, &fms, &ebx, &ecx, &edx); |
| family = (fms >> 8) & 0xf; |
| model = (fms >> 4) & 0xf; |
| stepping = fms & 0xf; |
| if (family == 6 || family == 0xf) |
| model += ((fms >> 16) & 0xf) << 4; |
| |
| if (verbose) |
| fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", |
| max_level, family, model, stepping, family, model, stepping); |
| |
| if (!(edx & (1 << 5))) |
| errx(1, "CPUID: no MSR"); |
| |
| /* |
| * check max extended function levels of CPUID. |
| * This is needed to check for invariant TSC. |
| * This check is valid for both Intel and AMD. |
| */ |
| ebx = ecx = edx = 0; |
| __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); |
| |
| if (max_level >= 0x80000007) { |
| |
| /* |
| * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 |
| * this check is valid for both Intel and AMD |
| */ |
| __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); |
| has_invariant_tsc = edx & (1 << 8); |
| } |
| |
| /* |
| * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 |
| * this check is valid for both Intel and AMD |
| */ |
| |
| __get_cpuid(0x6, &eax, &ebx, &ecx, &edx); |
| has_aperf = ecx & (1 << 0); |
| do_dts = eax & (1 << 0); |
| do_ptm = eax & (1 << 6); |
| has_epb = ecx & (1 << 3); |
| |
| if (verbose) |
| fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n", |
| has_aperf ? "" : "No ", |
| do_dts ? "" : "No ", |
| do_ptm ? "" : "No ", |
| has_epb ? "" : "No "); |
| |
| do_nhm_platform_info = do_nhm_cstates = do_smi = has_nhm_msrs(family, model); |
| do_snb_cstates = has_snb_msrs(family, model); |
| do_c8_c9_c10 = has_hsw_msrs(family, model); |
| do_slm_cstates = is_slm(family, model); |
| bclk = discover_bclk(family, model); |
| |
| do_nhm_turbo_ratio_limit = has_nhm_turbo_ratio_limit(family, model); |
| do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); |
| rapl_probe(family, model); |
| perf_limit_reasons_probe(family, model); |
| |
| return; |
| } |
| |
| |
| void usage() |
| { |
| errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", |
| progname); |
| } |
| |
| |
| /* |
| * in /dev/cpu/ return success for names that are numbers |
| * ie. filter out ".", "..", "microcode". |
| */ |
| int dir_filter(const struct dirent *dirp) |
| { |
| if (isdigit(dirp->d_name[0])) |
| return 1; |
| else |
| return 0; |
| } |
| |
| int open_dev_cpu_msr(int dummy1) |
| { |
| return 0; |
| } |
| |
| void topology_probe() |
| { |
| int i; |
| int max_core_id = 0; |
| int max_package_id = 0; |
| int max_siblings = 0; |
| struct cpu_topology { |
| int core_id; |
| int physical_package_id; |
| } *cpus; |
| |
| /* Initialize num_cpus, max_cpu_num */ |
| topo.num_cpus = 0; |
| topo.max_cpu_num = 0; |
| for_all_proc_cpus(count_cpus); |
| if (!summary_only && topo.num_cpus > 1) |
| show_cpu = 1; |
| |
| if (verbose > 1) |
| fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); |
| |
| cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); |
| if (cpus == NULL) |
| err(1, "calloc cpus"); |
| |
| /* |
| * Allocate and initialize cpu_present_set |
| */ |
| cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); |
| if (cpu_present_set == NULL) |
| err(3, "CPU_ALLOC"); |
| cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); |
| CPU_ZERO_S(cpu_present_setsize, cpu_present_set); |
| for_all_proc_cpus(mark_cpu_present); |
| |
| /* |
| * Allocate and initialize cpu_affinity_set |
| */ |
| cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); |
| if (cpu_affinity_set == NULL) |
| err(3, "CPU_ALLOC"); |
| cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); |
| CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); |
| |
| |
| /* |
| * For online cpus |
| * find max_core_id, max_package_id |
| */ |
| for (i = 0; i <= topo.max_cpu_num; ++i) { |
| int siblings; |
| |
| if (cpu_is_not_present(i)) { |
| if (verbose > 1) |
| fprintf(stderr, "cpu%d NOT PRESENT\n", i); |
| continue; |
| } |
| cpus[i].core_id = get_core_id(i); |
| if (cpus[i].core_id > max_core_id) |
| max_core_id = cpus[i].core_id; |
| |
| cpus[i].physical_package_id = get_physical_package_id(i); |
| if (cpus[i].physical_package_id > max_package_id) |
| max_package_id = cpus[i].physical_package_id; |
| |
| siblings = get_num_ht_siblings(i); |
| if (siblings > max_siblings) |
| max_siblings = siblings; |
| if (verbose > 1) |
| fprintf(stderr, "cpu %d pkg %d core %d\n", |
| i, cpus[i].physical_package_id, cpus[i].core_id); |
| } |
| topo.num_cores_per_pkg = max_core_id + 1; |
| if (verbose > 1) |
| fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", |
| max_core_id, topo.num_cores_per_pkg); |
| if (!summary_only && topo.num_cores_per_pkg > 1) |
| show_core = 1; |
| |
| topo.num_packages = max_package_id + 1; |
| if (verbose > 1) |
| fprintf(stderr, "max_package_id %d, sizing for %d packages\n", |
| max_package_id, topo.num_packages); |
| if (!summary_only && topo.num_packages > 1) |
| show_pkg = 1; |
| |
| topo.num_threads_per_core = max_siblings; |
| if (verbose > 1) |
| fprintf(stderr, "max_siblings %d\n", max_siblings); |
| |
| free(cpus); |
| } |
| |
| void |
| allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) |
| { |
| int i; |
| |
| *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * |
| topo.num_packages, sizeof(struct thread_data)); |
| if (*t == NULL) |
| goto error; |
| |
| for (i = 0; i < topo.num_threads_per_core * |
| topo.num_cores_per_pkg * topo.num_packages; i++) |
| (*t)[i].cpu_id = -1; |
| |
| *c = calloc(topo.num_cores_per_pkg * topo.num_packages, |
| sizeof(struct core_data)); |
| if (*c == NULL) |
| goto error; |
| |
| for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) |
| (*c)[i].core_id = -1; |
| |
| *p = calloc(topo.num_packages, sizeof(struct pkg_data)); |
| if (*p == NULL) |
| goto error; |
| |
| for (i = 0; i < topo.num_packages; i++) |
| (*p)[i].package_id = i; |
| |
| return; |
| error: |
| err(1, "calloc counters"); |
| } |
| /* |
| * init_counter() |
| * |
| * set cpu_id, core_num, pkg_num |
| * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE |
| * |
| * increment topo.num_cores when 1st core in pkg seen |
| */ |
| void init_counter(struct thread_data *thread_base, struct core_data *core_base, |
| struct pkg_data *pkg_base, int thread_num, int core_num, |
| int pkg_num, int cpu_id) |
| { |
| struct thread_data *t; |
| struct core_data *c; |
| struct pkg_data *p; |
| |
| t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); |
| c = GET_CORE(core_base, core_num, pkg_num); |
| p = GET_PKG(pkg_base, pkg_num); |
| |
| t->cpu_id = cpu_id; |
| if (thread_num == 0) { |
| t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; |
| if (cpu_is_first_core_in_package(cpu_id)) |
| t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; |
| } |
| |
| c->core_id = core_num; |
| p->package_id = pkg_num; |
| } |
| |
| |
| int initialize_counters(int cpu_id) |
| { |
| int my_thread_id, my_core_id, my_package_id; |
| |
| my_package_id = get_physical_package_id(cpu_id); |
| my_core_id = get_core_id(cpu_id); |
| |
| if (cpu_is_first_sibling_in_core(cpu_id)) { |
| my_thread_id = 0; |
| topo.num_cores++; |
| } else { |
| my_thread_id = 1; |
| } |
| |
| init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); |
| init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); |
| return 0; |
| } |
| |
| void allocate_output_buffer() |
| { |
| output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); |
| outp = output_buffer; |
| if (outp == NULL) |
| err(-1, "calloc output buffer"); |
| } |
| |
| void setup_all_buffers(void) |
| { |
| topology_probe(); |
| allocate_counters(&thread_even, &core_even, &package_even); |
| allocate_counters(&thread_odd, &core_odd, &package_odd); |
| allocate_output_buffer(); |
| for_all_proc_cpus(initialize_counters); |
| } |
| |
| void turbostat_init() |
| { |
| check_dev_msr(); |
| check_permissions(); |
| check_cpuid(); |
| |
| setup_all_buffers(); |
| |
| if (verbose) |
| print_verbose_header(); |
| |
| if (verbose) |
| for_all_cpus(print_epb, ODD_COUNTERS); |
| |
| if (verbose) |
| for_all_cpus(print_perf_limit, ODD_COUNTERS); |
| |
| if (verbose) |
| for_all_cpus(print_rapl, ODD_COUNTERS); |
| |
| for_all_cpus(set_temperature_target, ODD_COUNTERS); |
| |
| if (verbose) |
| for_all_cpus(print_thermal, ODD_COUNTERS); |
| } |
| |
| int fork_it(char **argv) |
| { |
| pid_t child_pid; |
| int status; |
| |
| status = for_all_cpus(get_counters, EVEN_COUNTERS); |
| if (status) |
| exit(status); |
| /* clear affinity side-effect of get_counters() */ |
| sched_setaffinity(0, cpu_present_setsize, cpu_present_set); |
| gettimeofday(&tv_even, (struct timezone *)NULL); |
| |
| child_pid = fork(); |
| if (!child_pid) { |
| /* child */ |
| execvp(argv[0], argv); |
| } else { |
| |
| /* parent */ |
| if (child_pid == -1) |
| err(1, "fork"); |
| |
| signal(SIGINT, SIG_IGN); |
| signal(SIGQUIT, SIG_IGN); |
| if (waitpid(child_pid, &status, 0) == -1) |
| err(status, "waitpid"); |
| } |
| /* |
| * n.b. fork_it() does not check for errors from for_all_cpus() |
| * because re-starting is problematic when forking |
| */ |
| for_all_cpus(get_counters, ODD_COUNTERS); |
| gettimeofday(&tv_odd, (struct timezone *)NULL); |
| timersub(&tv_odd, &tv_even, &tv_delta); |
| for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); |
| compute_average(EVEN_COUNTERS); |
| format_all_counters(EVEN_COUNTERS); |
| flush_stderr(); |
| |
| fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); |
| |
| return status; |
| } |
| |
| int get_and_dump_counters(void) |
| { |
| int status; |
| |
| status = for_all_cpus(get_counters, ODD_COUNTERS); |
| if (status) |
| return status; |
| |
| status = for_all_cpus(dump_counters, ODD_COUNTERS); |
| if (status) |
| return status; |
| |
| flush_stdout(); |
| |
| return status; |
| } |
| |
| void cmdline(int argc, char **argv) |
| { |
| int opt; |
| |
| progname = argv[0]; |
| |
| while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) { |
| switch (opt) { |
| case 'p': |
| show_core_only++; |
| break; |
| case 'P': |
| show_pkg_only++; |
| break; |
| case 's': |
| dump_only++; |
| break; |
| case 'S': |
| summary_only++; |
| break; |
| case 'v': |
| verbose++; |
| break; |
| case 'i': |
| interval_sec = atoi(optarg); |
| break; |
| case 'c': |
| sscanf(optarg, "%x", &extra_delta_offset32); |
| break; |
| case 'C': |
| sscanf(optarg, "%x", &extra_delta_offset64); |
| break; |
| case 'm': |
| sscanf(optarg, "%x", &extra_msr_offset32); |
| break; |
| case 'M': |
| sscanf(optarg, "%x", &extra_msr_offset64); |
| break; |
| case 'R': |
| rapl_verbose++; |
| break; |
| case 'T': |
| tcc_activation_temp_override = atoi(optarg); |
| break; |
| case 'J': |
| rapl_joules++; |
| break; |
| |
| default: |
| usage(); |
| } |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| cmdline(argc, argv); |
| |
| if (verbose) |
| fprintf(stderr, "turbostat v3.9 23-Jan, 2015" |
| " - Len Brown <lenb@kernel.org>\n"); |
| |
| turbostat_init(); |
| |
| /* dump counters and exit */ |
| if (dump_only) |
| return get_and_dump_counters(); |
| |
| /* |
| * if any params left, it must be a command to fork |
| */ |
| if (argc - optind) |
| return fork_it(argv + optind); |
| else |
| turbostat_loop(); |
| |
| return 0; |
| } |