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498432e86b
Add a "-j" option to llvm-profdata to control the number of threads used. Auto-detect NumThreads when it isn't specified, and avoid spawning threads when they wouldn't be beneficial. I tested this patch using a raw profile produced by clang (147MB). Here is the time taken to merge 4 copies together on my laptop: No thread pool: 112.87s user 5.92s system 97% cpu 2:01.08 total With 2 threads: 134.99s user 26.54s system 164% cpu 1:33.31 total Differential Revision: https://reviews.llvm.org/D22438 llvm-svn: 275921 |
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.. | ||
dsymutil | ||
gold | ||
llvm-ar | ||
llvm-config | ||
llvm-cov | ||
llvm-cxxdump | ||
llvm-dwp | ||
llvm-lit | ||
llvm-lto | ||
llvm-mc | ||
llvm-nm | ||
llvm-objdump | ||
llvm-pdbdump | ||
llvm-profdata | ||
llvm-readobj | ||
llvm-size | ||
llvm-split | ||
llvm-symbolizer | ||
lto | ||
sancov | ||
sanstats | ||
yaml2obj |