Measure total time in state
This measure is not affected by uid removals and is monotonic. That
makes it a good fit for CPU telemetry in statsd.
Bug: 174245730
Test: manually compare total with uid breakdown
Change-Id: I0f04f2ff09d77a4c7d9fe1e2b492f983b61987f6
diff --git a/progs/include/bpf_timeinstate.h b/progs/include/bpf_timeinstate.h
index 7cb7baa..1065b6e 100644
--- a/progs/include/bpf_timeinstate.h
+++ b/progs/include/bpf_timeinstate.h
@@ -19,6 +19,10 @@
#define BPF_FS_PATH "/sys/fs/bpf/"
+// Number of frequencies tracked in the array with total time. If some CPUs have
+// more than 64 freqs
+// // available, the overflow is stored in the last entry.
+#define MAX_FREQS_FOR_TOTAL 64
// Number of frequencies for which a UID's times can be tracked in a single map entry. If some CPUs
// have more than 32 freqs available, a single UID is tracked using 2 or more entries.
#define FREQS_PER_ENTRY 32