[PATCH] D58327: [Dominators] Simplify and optimize path compression used in link-eval forest.

[Brian Rzycki via Phabricator via llvm-commits]

brzycki added a comment.

In D58327#1402240 <https://reviews.llvm.org/D58327#1402240>, @kuhar wrote:

> In addition, make sure that your performance governor is set to performance and that you pin the process to a single cpu core with its sibling disabled. (like in https://llvm.org/docs/Benchmarking.html#linux). Benchmarking on x86 is hard.


+1

One test I like to use is the LLVM test-suite subdirectory `CTMark` with running the top-level `lit` process through `taskset`, as in:

  cmake -G Ninja -D TEST_SUITE_SUBDIRS=CTMark -D TEST_SUITE_RUN_BENCHMARKS=0 ...
  
  ninja
  
  taskset -c $core lit -v -j 1 . -o results.json




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https://reviews.llvm.org/D58327