Dear all,
I have added a page to the GHC commentary explaining how to use the
PAPI library together with GHC to gather performance information from
your CPU (cache misses, branch misprediction). At present only cache
miss information is supported in a platform independent way (though
not tested). Also, this implementation separates the performance
information for the garbage collector and the mutator so it is quite
useful if you are implementing an optimisation.
The page also has some patches to use PAPI on the nofib suite. These
patches are eventually going to make it into the HEAD, but I thought
someone might find them useful meanwhile.
Cheers,
Alexey
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