[PATCH] D133153: [support] Prepare TimeProfiler for cross-thread support
Russell Gallop via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 7 08:49:25 PDT 2022
russell.gallop added a comment.
Something is definitely up now. With the latest patch I see a 12% decrease in performance when using -ftime-trace! With 10 runs there is no overlap between the with and without timings. Are you able to reproduce this difference on a test file?
Some details in case they're important:
Applying patch on top of 0431eb59dfa8f77e460c282dd15006b363d5dbd7 <https://reviews.llvm.org/rG0431eb59dfa8f77e460c282dd15006b363d5dbd7>
Building with clang-cl+lld-link 12.0.1 on Windows based on VS2019
Building in RelWithDebInfo configuration
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D133153/new/
https://reviews.llvm.org/D133153
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