Date: Fri, 6 Oct 2006 09:57:38 +0200 From: Divacky Roman <xdivac02@stud.fit.vutbr.cz> To: Jerry Bell <jbell@stelesys.com> Cc: freebsd-performance@freebsd.org Subject: Re: Help with improving mysql performance on 6.2PRE Message-ID: <20061006075738.GA64854@stud.fit.vutbr.cz> In-Reply-To: <3731.71.56.92.181.1160009571.squirrel@www.stelesys.com> References: <3731.71.56.92.181.1160009571.squirrel@www.stelesys.com>
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On Wed, Oct 04, 2006 at 08:52:51PM -0400, Jerry Bell wrote: > I have a Dell PE2950 with 2 dual core 3.73Ghz processors and 4G of ram. > I've looked through some of the lists here and have seen super-smack > results in the 42k qps range on a 2 dual core opteron system. I'm able to > get up to about 34k with the wide at the back of my server whilest rubbing > the side of it. > > Here's what I've done: > built both mysql 5.0 and 5.1 from ports with build_static and > optimazations on. > changed the clock to TSC > > added the following to my /etc/libmap.conf file: > [mysqld] > libc_r.so.5 libthr.so.2 > libc_r.so.6 libthr.so.2 > libthr.so.2 libthr.so.2 > libpthread.so.1 libthr.so.2 > libpthread.so.2 libthr.so.2 > > And this is about the best result I get: > 2950# super-smack -d mysql select-key-mysql.smack 10 10000 > Query Barrel Report for client smacker1 > connect: max=200ms min=0ms avg= 20ms from 10 clients > Query_type num_queries max_time min_time q_per_s > select_index 200000 0 0 34440.88 > > > Are there any other optimizations I need to do to mysql or freebsd? I'm > still not 100% convinced that I've done everything I need to use libthr > instead of libpthread. on UP people recomend to use TSC instead of acpi timer
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