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llvm / scudo / 346790be383eed685ea7752733d7ed6d3f93f833
commit346790be383eed685ea7752733d7ed6d3f93f833[log] [tgz]
authorChiaHungDuan <chiahungduan@google.com>Thu Oct 19 15:47:18 2023 -0700
committerCopybara-Service <copybara-worker@google.com>Thu Oct 19 15:50:47 2023 -0700
tree3eaa83d65a52a2f23466266cce04b294b5c756db
parent3603c3d07ba18bacbfca8bbcef8471728df0924f [diff]
[scudo] Add ConditionVariable in SizeClassAllocator64 (#69031)

This may improve the waiting of `Region->MMLock` while trying to refill
the freelist. Instead of always waiting on the completion of
`populateFreeListAndPopBatch()` or `releaseToOSMaybe()`, `pushBlocks()`
also refills the freelist. This increases the chance of earlier return
from `popBatches()`.

The support of condition variable hasn't been done for all platforms.
Therefore, add another `popBatchWithCV()` and it can be configured in
the allocator configuration by setting `Primary::UseConditionVariable`
and the desired `ConditionVariableT`.

Reviewed By: cferris

Differential Revision: https://reviews.llvm.org/D156146

GitOrigin-RevId: ab17ecd107670cd843a9074e4d0bc33810abcf5e
9 files changed
tree: 3eaa83d65a52a2f23466266cce04b294b5c756db
  1. benchmarks/
  2. fuzz/
  3. include/
  4. tests/
  5. tools/
  6. allocator_common.h
  7. allocator_config.h
  8. atomic_helpers.h
  9. bytemap.h
  10. checksum.cpp
  11. checksum.h
  12. chunk.h
  13. combined.h
  14. common.cpp
  15. common.h
  16. condition_variable.h
  17. condition_variable_base.h
  18. condition_variable_linux.cpp
  19. condition_variable_linux.h
  20. crc32_hw.cpp
  21. flags.cpp
  22. flags.h
  23. flags.inc
  24. flags_parser.cpp
  25. flags_parser.h
  26. fuchsia.cpp
  27. fuchsia.h
  28. internal_defs.h
  29. LICENSE.TXT
  30. linux.cpp
  31. linux.h
  32. list.h
  33. local_cache.h
  34. mem_map.cpp
  35. mem_map.h
  36. mem_map_base.h
  37. mem_map_fuchsia.cpp
  38. mem_map_fuchsia.h
  39. mem_map_linux.cpp
  40. mem_map_linux.h
  41. memtag.h
  42. mutex.h
  43. options.h
  44. platform.h
  45. primary32.h
  46. primary64.h
  47. quarantine.h
  48. release.cpp
  49. release.h
  50. report.cpp
  51. report.h
  52. report_linux.cpp
  53. report_linux.h
  54. secondary.h
  55. size_class_map.h
  56. stack_depot.h
  57. stats.h
  58. string_utils.cpp
  59. string_utils.h
  60. thread_annotations.h
  61. timing.cpp
  62. timing.h
  63. trusty.cpp
  64. trusty.h
  65. tsd.h
  66. tsd_exclusive.h
  67. tsd_shared.h
  68. vector.h
  69. wrappers_c.cpp
  70. wrappers_c.h
  71. wrappers_c.inc
  72. wrappers_c_bionic.cpp
  73. wrappers_c_checks.h
  74. wrappers_cpp.cpp