Date: Thu, 20 May 2004 12:33:11 -0700 From: JG <amd64list@jpgsworld.com> To: freebsd-amd64@freebsd.org Subject: Re: Why is MySQL nearly twice as fast on Linux/AMD64 Vs. FreeBSD/AMD64? Message-ID: <5.2.0.9.2.20040520122752.015eec60@mail.ojoink.com> In-Reply-To: <20040520190944.GA28688@Odin.AC.HMC.Edu> References: <Pine.LNX.4.53.0405201129570.22287@sql01.internal.mikehost.net> <200405191211.25786.peter@wemm.org> <20040519172913.GU601@funkthat.com> <5.2.0.9.2.20040519052743.04365f78@mail.ojoink.com> <20040519172913.GU601@funkthat.com> <5.2.0.9.2.20040520041642.03db2188@mail.ojoink.com> <5.2.0.9.2.20040520085802.015fc2d0@mail.ojoink.com> <00a501c43e89$b39ed8b0$7b07000a@int.mediasurface.com> <Pine.LNX.4.53.0405201033390.15127@sql01.internal.mikehost.net> <20040520180534.GA28248@Odin.AC.HMC.Edu> <Pine.LNX.4.53.0405201129570.22287@sql01.internal.mikehost.net>
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> >I agree something isn't working, that's obvious from the results. That >doesn't change the fact that linuxthreads is a gross hack that does >something two system thread libs are supposed to do. Unless porting >linuxthreads to amd64 is REALLY trivial, you would almost certaintly get >more milege in the longterm working with the people on threads@ to find >and fix the problems with our threading libaries or scheduler. Obvious >things to do include building test cases that require minimal mysql >knowlege. > >-- Brooks After I do my i386 OS / AMD64 hardware benchmarking tests, I'll post the results here and then a summary of all of this to freebsd-threads as it does seem to be becoming more of an issue for them than the AMD64 team. I guess we'll know that from the upcoming i386 benchmarks, how libpthreads is working for MySQL on either port. - JeremyG
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