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| author | Hongtao Yu <hoy@fb.com> | 2022-01-31 20:24:45 -0800 |
|---|---|---|
| committer | Hongtao Yu <hoy@fb.com> | 2022-02-01 12:48:08 -0800 |
| commit | 057e784b0962a7c5a17e858932bb6f03c7676c47 (patch) | |
| tree | dabd365af44b65b6183b313d7813e080fc3caf8b /lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.cpp | |
| parent | 267400c9b0b14129c9f61b962a650faa23b1b047 (diff) | |
| download | llvm-057e784b0962a7c5a17e858932bb6f03c7676c47.zip llvm-057e784b0962a7c5a17e858932bb6f03c7676c47.tar.gz llvm-057e784b0962a7c5a17e858932bb6f03c7676c47.tar.bz2 | |
[llvm-profgen] Clean up unnecessary memory reservations between phases.
Cleaning up data structures that are not used after a certain point. This further brings down peak memory usage by 15% for a large benchmark.
Before:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.97 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.99 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.53 GB
note: After computeSizeForProfiledFunctions
note: VM: 101.13 GB RSS: 99.36 GB
note: After generateProbeBasedProfile
note: VM: 215.61 GB RSS: 210.88 GB
note: After postProcessProfiles
note: VM: 237.48 GB RSS: 212.50 GB
After:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.96 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.97 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.51 GB
note: After computeSizeForProfiledFunctions
note: VM: 93.50 GB RSS: 92.53 GB
note: After generateProbeBasedProfile
note: VM: 164.87 GB RSS: 163.55 GB
note: After postProcessProfiles
note: VM: 182.28 GB RSS: 179.43 GB
Reviewed By: wenlei, wlei
Differential Revision: https://reviews.llvm.org/D118677
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.cpp')
0 files changed, 0 insertions, 0 deletions