Date: Thu, 20 May 2004 09:53:14 -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: <5.2.0.9.2.20040520094801.0436d208@mail.ojoink.com> In-Reply-To: <00a501c43e89$b39ed8b0$7b07000a@int.mediasurface.com> References: <200405191211.25786.peter@wemm.org> <20040519172913.GU601@funkthat.com> <5.2.0.9.2.20040519052743.04365f78@mail.ojoink.com> <5.2.0.9.2.20040519060611.0435f750@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>
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At 05:44 PM 5/20/2004 +0100, you wrote: >Great minds... :) >If you've gone to the trouble of installing i386 I wouldn't limit your >tests to >just WITH_LINUXTHREADS=yes, but also try pthreads as well it could be >an AMD64 specific issue with pthreads implementation but I doubt it. Oh I definitely will. Actually it just finished installing and I'm building cvsup right now. Should I bring it up to -CURRENT first you think? It's a 5.2.1 disc from maybe a couple months ago. I'm almost wondering if I shouldn't have tried 4.9-STABLE first. Is there some kind test I can run to find out if SMP is actually being used efficiently or not? John-Mark said something earlier about watching output of "vmstat -w 1" and if the ID's don't drop below 20 then I am probably only using a single CPU. Well, I hope that's not the case because I ran that while cvsup was compiling (it just finished) and the ID's never dropped below 50.
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