[LLVMdev] [PATCH] FoldingSetNodeID: use MurmurHash2 instead of SuperFastHash

Gregory Petrosyan gregory.petrosyan at gmail.com
Mon Feb 8 11:28:55 PST 2010

On Mon, Feb 08, 2010 at 10:31:23AM -0800, Chris Lattner wrote:
> These numbers are so noisy, that they aren't particularly useful.
> Could you try instrumenting foldingset to keep track track of the #
> collisions and # hash table resizes and compare those?  They should
> be much more stable and still correlate directly to performance.

Yup -- they are extremely noisy. Very good idea -- will give it a try.


More information about the llvm-dev mailing list