Date: Wed, 5 Apr 2006 13:31:23 +0800 From: David Xu <yfxu@corp.netease.com> To: freebsd-performance@freebsd.org Subject: Re: mysql performance on 4 * dualcore opteron Message-ID: <200604051331.23826.yfxu@corp.netease.com> In-Reply-To: <200604041942.18767.hadara@bsd.ee> References: <200604041942.18767.hadara@bsd.ee>
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ÔÚ Wednesday 05 April 2006 00:42£¬Sven Petai дµÀ£º > > hi > > Before I begin, let me just say that I'm probably aware most of the threads > about mysql performance in various fbsd lists over last couple of years, so > please let's not consentrate on the usual points made over and over again > like how filesystems are mounted under linux, how fast time() is or how > various combinations of scheduler/threding library/compiler flags give you > ~5-10% better performance. It's very unlikely that any of these reasons, or > even all of them together can explain performance differences of 2-3 * > Can you disable log-bin option in my.cnf to see if it is a FS bottleneck when you are running update-smack ? please run Linux and FreeBSD with same hardware and my.cnf configuration, thanks. I know this is not very right, but it can be used to narrow down some kernel performance problem. Regards, David Xu
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