[Lldb-commits] [PATCH] D32306: Remove lock from ConstString::GetLength

Scott Smith via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Mon Apr 24 16:42:23 PDT 2017


scott.smith added a comment.

In https://reviews.llvm.org/D32306#733316, @labath wrote:

> Looks good, thank you.
>
> Out of curiosity, have you observed any performance improvements resulting from this?


10.2% reduction in # of instructions executed, 9.1% reduction in # of cycles, as measured by 'perf stat' in single threaded mode (I disabled TaskPool in order to get more repeatable results).

Can you commit this for me?  I don't have commit access.

Thank you!


Repository:
  rL LLVM

https://reviews.llvm.org/D32306





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