Kazu Yamamoto <k...@iij.ad.jp> writes: > Hi, > >>> Andreas - want me to go ahead and get you some hardware to test Ben's >>> patch in the mean time? This way we'll at least not leave it hanging >>> until the last moment... >> >> I will also try this with two 20-core machines connected 10G on >> Monday. > > I measured the performace of GHC head, 7.8.3 and 7.8.3 + Ben's patch > set. > > Server: witty 8080 -r -a -s +RTS -N<n> *1 > Measurement tool: weighttp -n 100000 -c 1000 -k -t 19 http://192.168.0.1:8080/ > Measurement env: two 20 core (w/o HT) machines directly connected 10G > > Here is result (req/s): > > -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 37,608 69,376 131,686 237,783 333,946 > > head and 7.8.3 has almost the same performance. But I saw significant > performance regression in Ben's patch set. > Hmm, uh oh. Thanks for testing this. I'll try to reproduce this on my end. It looks like it shouldn't be so hard as even the single-threaded performance regresses drastically. Just to confirm, you are using the latest revision of D347?
Cheers, - Ben
pgpv0n7lwjO0p.pgp
Description: PGP signature
_______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
