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| author | 2024-10-17 19:29:23 +0000 | |
|---|---|---|
| committer | 2024-11-11 13:47:13 +0000 | |
| commit | 5656cd41481ab03eb6df3aec7eda296ebbef667b (patch) | |
| tree | 2fdb8b5e96cc50fb26643a9e00df6a7d0f7bb490 /compiler/optimizing/optimizing_compiler_stats.h | |
| parent | 939772b8f0548655e598f68f5af442f512236138 (diff) | |
Reduce the likelihood of the child process being stuck
The design of the hprof plugin prioritizes minimizing the impact of the
process being dumped, and does so by forking (inherently unreliable)
Besides suspending all threads (already the case) there are additional
tweaks we can do to reduce the chance of being stuck in a
fork-unfriendly code path:
- Stop using LOG in the child process (at least until the heap dump has
been completed)
- Optimistically get the thread_list_lock_ to avoid forking at an
unfortunate time
These were both discovered by running the CTS tests repeatedly and
looking for flakes.
Change-Id: I4934e920c1eb57aca339b7b220c63e9650c00c7e
Bug: 376421756
Test: atest CtsPerfettoTestCases:HeapprofdJavaCtsTest
Diffstat (limited to 'compiler/optimizing/optimizing_compiler_stats.h')
0 files changed, 0 insertions, 0 deletions