Date: Fri, 17 Oct 2014 04:07:23 +0400 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: src-committers <src-committers@freebsd.org>, Ed Maste <emaste@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, "George V. Neville-Neil" <gnn@freebsd.org>, Olivier Cochard-Labb? <olivier@cochard.me>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r272906 - in head/sys: conf libkern netpfil/pf sys Message-ID: <20141017000723.GG73266@FreeBSD.org> In-Reply-To: <20141016230446.GA11048@onelab2.iet.unipi.it> References: <201410101926.s9AJQRY1049602@svn.freebsd.org> <CA%2Bq%2BTcpt0zEbgu_LndZb4dzh=xykHvppeykuiG6P9cTJgDGeWw@mail.gmail.com> <20141015030455.GC73266@FreeBSD.org> <CAPyFy2CDSwLkTtPFj70tw2iuDam3rS4yFNri=pX0w7_58UYMoA@mail.gmail.com> <20141015041418.GE73266@FreeBSD.org> <20141016230446.GA11048@onelab2.iet.unipi.it>
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Luigi, On Fri, Oct 17, 2014 at 01:04:46AM +0200, Luigi Rizzo wrote: L> > Thanks a lot, Ed. I rerun the tests. Results are fine. Distribution L> > is equal (plots attached). L> > L> > Murmur is 9% +/- 1.5% faster. Sorry for noise. L> L> is that 9% on the hash alone ? Right. L> If so it is surprising that you could see any change on pf's throughput. L> In my very non-scientific tests with VALE, doing two hashes on L> the MAC address would result in 17 Mpps vs 20 Mpps when no hashes were done. L> The difference is about 8ns, which is totally in the noise at 2 Mpps or less. We share exactly the same position here. Notice also, that Olivier also run tests that showed no change. May be George's tests were on single state? -- Totus tuus, Glebius.
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