Karthik Bhat
2014-May-23 18:03 UTC
[LLVMdev] How to run llvm lnt performance test between 2 revisions
Hi All, I have a basic question. I want to compare 2 clang binaries one with a patch and one without patch for performance. I went though http://llvm.org/docs/lnt/quickstart.html and and followed the steps to generate the reports for both the binaries but i was unable to compare the 2 results. Upon seeing the options under- ln runtest nt --help it seems i need to set cc as clang with patch and cc-reference and clang without patch. I tried the following command - lnt runtest nt \ --sandbox SANDBOX \ --cc ~/Opensource/rbuild/bin/clang \ --cxx ~/Opensource/rbuild/bin/clang++ \ --cc-reference=~/Opensource/rbuild_old/bin/clang \ --cxx-reference=~/Opensource/rbuild_old/bin/clang++ \ --test-suite ~/llvm-test-suite but this gave me an error as follows- "lnt: error: --cc-reference is unused with --simple" . Could someone please let me know the correct approach and command to compare reports generated for 2 clang binaries(1 with patch/changes and other as base revision). Thanks for the help. Regards Karthik Bhat -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140523/d86b72da/attachment.html>