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| author | Teresa Johnson <tejohnson@google.com> | 2017-08-03 23:42:58 +0000 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@google.com> | 2017-08-03 23:42:58 +0000 |
| commit | 8482e56920780be8146b4088ec21502d00b9e440 (patch) | |
| tree | 00dfc2477bb32dd29fe68a06e61663fb1a613e5d /llvm/tools/llvm-cov/SourceCoverageView.cpp | |
| parent | a176cc5b93075eec2bfdaf6c357b1ba216aab006 (diff) | |
| download | llvm-8482e56920780be8146b4088ec21502d00b9e440.zip llvm-8482e56920780be8146b4088ec21502d00b9e440.tar.gz llvm-8482e56920780be8146b4088ec21502d00b9e440.tar.bz2 | |
Use profile summary to disable peeling for huge working sets
Summary:
Detect when the working set size of a profiled application is huge,
by comparing the number of counts required to reach the hot percentile
in the profile summary to a large threshold*.
When the working set size is determined to be huge, disable peeling
to avoid bloating the working set further.
*Note that the selected threshold (15K) is significantly larger than the
largest working set value in SPEC cpu2006 (which is gcc at around 11K).
Reviewers: davidxl
Subscribers: mehdi_amini, mzolotukhin, eraman, llvm-commits
Differential Revision: https://reviews.llvm.org/D36288
llvm-svn: 310005
Diffstat (limited to 'llvm/tools/llvm-cov/SourceCoverageView.cpp')
0 files changed, 0 insertions, 0 deletions