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| author | Francis Ricci <francisjricci@gmail.com> | 2017-07-17 23:03:03 +0000 |
|---|---|---|
| committer | Francis Ricci <francisjricci@gmail.com> | 2017-07-17 23:03:03 +0000 |
| commit | 7096b08cd76fde000873f4ed936f358afb79176e (patch) | |
| tree | 2dc3796ad770122ec22b37577756fd40635444d3 /llvm/lib/DebugInfo/CodeView/Formatters.cpp | |
| parent | 4a8f16ec9d09d46a44b0aefcccc0c7c3822c863e (diff) | |
| download | llvm-7096b08cd76fde000873f4ed936f358afb79176e.zip llvm-7096b08cd76fde000873f4ed936f358afb79176e.tar.gz llvm-7096b08cd76fde000873f4ed936f358afb79176e.tar.bz2 | |
Only scan global sections containing data in LSan on darwin
Summary:
__DATA segments on Darwin contain a large number of separate sections,
most of which cannot actually contain pointers, and contain const values or
objc metadata. Only scanning sections which can contain pointers greatly improves
performance.
On a medium-sized (~4000 files) internal project, I saw a speedup of about 50%
in standalone LSan's execution time (50% improvement in the time spent running
LSan, not the total program time).
Reviewers: kcc, kubamracek, alekseyshl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D35432
llvm-svn: 308231
Diffstat (limited to 'llvm/lib/DebugInfo/CodeView/Formatters.cpp')
0 files changed, 0 insertions, 0 deletions