[Lldb-commits] [PATCH] D13652: Change ConstString to support massive multi-threaded access

Tamas Berghammer via lldb-commits lldb-commits at lists.llvm.org
Tue Oct 13 08:54:21 PDT 2015

tberghammer updated this revision to Diff 37258.
tberghammer added a comment.

Use llvm::sys::RWMutex

Using it have a minor performance hit for debug info parsing because of the intensive write operations, but should have a positive impact on all reads (most access after debug info parsing). If the performance hit for writes isn't acceptable we can add a flag to the ConstString constructor hinting that we are creating a new string so we don't have to make a check in this case, but I prefer to don't do it until we can prove it is necessary.



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