Date: Fri, 16 Dec 2005 14:46:16 +0800 From: Gea-Suan Lin <gslin@gslin.org> To: leo.huang.gd@gmail.com Cc: freebsd-performance@freebsd.org, gslin@gslin.org Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux Message-ID: <20051216064615.GA41775@gslin.org>
next in thread | raw e-mail | index | archive | help
Hi, In http://blog.gslin.org/archives/2005/12/12/252/ we test more cases, and summary some important conclusions: * SCHED_ULE (kernel options) is faster than SCHED_4BSD. * Use kern.timecounter.choice=TSC (sysctl) will be faster than ACPI-fast or ACPI-safe. (about 10% again) And I notice you use kernel-image-2.6.8-2-686-smp in Debian, but not use "CPUTYPE?= p3" in /etc/make.conf to compile kernel. And you should disable these options, it may increase ~10% again: -cpu I486_CPU -cpu I586_CPU cpu I686_CPU -- * Gea-Suan Lin (public key: http://ccreader.nctu.edu.tw/~gslin/key.txt) * If you cannot convince them, confuse them. -- Harry S Truman
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051216064615.GA41775>