Kazu Yamamoto <k...@iij.ad.jp> writes: >> Well, Bas was wondering whether this would be possible. At this point >> I'm a bit on the fence; on one hand it's not a crucial fix (we have a >> workaround in usb) and it may involve changes to exported interfaces >> (although not very high visibility). On the other hand, it's a pretty >> easy change to make and it cleans up the semantics of the event manager >> nicely. > > I benchmarked your patches on GHC 7.8 branch: > > -N<n> 1 2 4 8 16 > --------------------------------------------------------- > head 92,855 155,957 306,813 498,613 527,034 > 7.8.3 86,494 160,321 310,675 494,020 510,751 > 7.8.3+ben 84,472 140,978 291,550 488,834 523,837 > > The inline patch works very nice. :-) > Awesome!
Out of curiosity are these numbers from single runs or do you average? What are the uncertainties on these numbers? Even on the Rackspace machines I was finding very large variances in my benchmarks, largely due to far outliers. I didn't investigate too far but it seems that a non-trivial fraction of connections were failing. At some point it would be nice to chat about how we might replicate your benchmarking configuration on the Rackspace boxen. > # And I was disappointed a bit because GHC does not automatically do > # this inline. > Yeah, this isn't the first time I've been caught assuming that GHC will inline. Thanks again for the benchmarking! Cheers, - Ben
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