[PATCH] D71775: [ThreadPool] On Windows, extend usage to all CPU sockets and all NUMA groups

Alexandre Ganea via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 9 14:19:15 PST 2020


aganea updated this revision to Diff 237197.
aganea marked 13 inline comments as done.
aganea added a comment.
Herald added subscribers: lucyrfox, mgester, arpith-jacob, nicolasvasilache, antiagainst, shauheen, burmako, jpienaar, rriddle.

Updated as suggested by @rnk.
I've also removed `ThreadPoolStrategy::PinThreads` because it wasn't conclusive. In the best case, pinning threads to a core / hyperthread, was similar in performance to that of using a full CPU socket affinity; in the worst case, it was degrading performance. The NT scheduler seems to be doing a pretty good job here, so we'll stick with it :-)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71775/new/

https://reviews.llvm.org/D71775

Files:
  clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
  clang-tools-extra/clangd/TUScheduler.cpp
  clang-tools-extra/clangd/index/Background.cpp
  clang-tools-extra/clangd/index/Background.h
  clang-tools-extra/clangd/index/BackgroundRebuild.h
  clang/lib/Tooling/AllTUsExecution.cpp
  clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp
  clang/tools/clang-scan-deps/ClangScanDeps.cpp
  lld/ELF/SyntheticSections.cpp
  llvm/include/llvm/ADT/BitVector.h
  llvm/include/llvm/ADT/SmallBitVector.h
  llvm/include/llvm/LTO/LTO.h
  llvm/include/llvm/Support/ThreadPool.h
  llvm/include/llvm/Support/Threading.h
  llvm/lib/CodeGen/ParallelCG.cpp
  llvm/lib/ExecutionEngine/Orc/LLJIT.cpp
  llvm/lib/LTO/LTO.cpp
  llvm/lib/LTO/LTOBackend.cpp
  llvm/lib/LTO/ThinLTOCodeGenerator.cpp
  llvm/lib/Support/Host.cpp
  llvm/lib/Support/Parallel.cpp
  llvm/lib/Support/ThreadPool.cpp
  llvm/lib/Support/Threading.cpp
  llvm/lib/Support/Unix/Threading.inc
  llvm/lib/Support/Windows/Threading.inc
  llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
  llvm/tools/dsymutil/dsymutil.cpp
  llvm/tools/gold/gold-plugin.cpp
  llvm/tools/llvm-cov/CodeCoverage.cpp
  llvm/tools/llvm-cov/CoverageExporterJson.cpp
  llvm/tools/llvm-cov/CoverageReport.cpp
  llvm/tools/llvm-lto2/llvm-lto2.cpp
  llvm/tools/llvm-profdata/llvm-profdata.cpp
  llvm/unittests/Support/Host.cpp
  llvm/unittests/Support/TaskQueueTest.cpp
  llvm/unittests/Support/ThreadPool.cpp
  llvm/unittests/Support/Threading.cpp
  mlir/lib/Pass/Pass.cpp

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