Date: Tue, 17 Jan 2006 20:38:08 -0600 From: Michael Barnett <mbarnett@measuremap.com> To: freebsd-questions@freebsd.org Subject: Re: PAE causing system crashes Message-ID: <0F01FAC2-09A7-47EC-AB05-B75564FC2433@measuremap.com> In-Reply-To: <20060118010418.GA95598@xor.obsecurity.org> References: <47A794C0-FE22-46FC-9D81-BCF3359CBD61@measuremap.com> <20060118010418.GA95598@xor.obsecurity.org>
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It ran fine when we were only throwing a few dozen qps at it... when we tried to throw about 350qps its way, it was much much slower... slower than our existing server with significantly fewer resources available. I never could figure out what the issue was... tried recompiling with different options, allocating more and less memory to mysql (really to innodb as all our tables are innodb), and a number of system tweaks to no avail. Are you running it on an opteron, or on a xeon? I have heard things go much smoother on AMD hardware. Anyways.. the damage is done. We are back on i386 and I just need to make it go! Right now i am just running with the stable non-PAE kernel that limits access to 4G of memory while i work this out. -m On Jan 17, 2006, at 7:04 PM, Kris Kennaway wrote: > On Tue, Jan 17, 2006 at 01:47:30PM -0600, Michael Barnett wrote: >> I have 3 dell machines with 2x xeon procs, 8G of ram, and a half >> terabyte raid 5. I attempted to run the AMD64 distribution on these >> boxes which was fine for everything except mysql, (which is all these >> boxes are going to do) so I reinstalled 5.4 i386. > > AFAIK mysql runs fine on amd64, so what was your problem with it? > > Kris
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