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llvm / scudo / 87070d4e57d5c69acdf1aadce704337248c03f32
commit87070d4e57d5c69acdf1aadce704337248c03f32[log] [tgz]
authorPeter Collingbourne <peter@pcc.me.uk>Fri Sep 25 13:36:30 2020 -0700
committerCopybara-Service <copybara-worker@google.com>Tue Sep 29 14:07:23 2020 -0700
tree45e07cdff5ed04f08e41c6f17ad9dec6390f800c
parent8beeaec90e4a8f68069c39f83bfdc6bccb9b46d8 [diff]
scudo: Re-order Allocator fields for improved performance. NFCI.

Move smaller and frequently-accessed fields near the beginning
of the data structure in order to improve locality and reduce
the number of instructions required to form an access to those
fields. With this change I measured a ~5% performance improvement on
BM_malloc_sql_trace_default on aarch64 Android devices (Pixel 4 and
DragonBoard 845c).

Differential Revision: https://reviews.llvm.org/D88350

GitOrigin-RevId: e851aeb0a5084d968d6384fbc2257bbe05dcdacb
1 file changed
tree: 45e07cdff5ed04f08e41c6f17ad9dec6390f800c
  1. benchmarks/
  2. fuzz/
  3. include/
  4. tests/
  5. tools/
  6. allocator_config.h
  7. atomic_helpers.h
  8. bytemap.h
  9. checksum.cpp
  10. checksum.h
  11. chunk.h
  12. combined.h
  13. common.cpp
  14. common.h
  15. crc32_hw.cpp
  16. flags.cpp
  17. flags.h
  18. flags.inc
  19. flags_parser.cpp
  20. flags_parser.h
  21. fuchsia.cpp
  22. fuchsia.h
  23. internal_defs.h
  24. LICENSE.TXT
  25. linux.cpp
  26. linux.h
  27. list.h
  28. local_cache.h
  29. memtag.h
  30. mutex.h
  31. platform.h
  32. primary32.h
  33. primary64.h
  34. quarantine.h
  35. release.cpp
  36. release.h
  37. report.cpp
  38. report.h
  39. secondary.h
  40. size_class_map.h
  41. stack_depot.h
  42. stats.h
  43. string_utils.cpp
  44. string_utils.h
  45. tsd.h
  46. tsd_exclusive.h
  47. tsd_shared.h
  48. vector.h
  49. wrappers_c.cpp
  50. wrappers_c.h
  51. wrappers_c.inc
  52. wrappers_c_bionic.cpp
  53. wrappers_c_checks.h
  54. wrappers_cpp.cpp