Date: Fri, 13 Jan 2006 10:36:27 +1030 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Eric Hodel <drbrain@segment7.net> Cc: freebsd-performance@freebsd.org Subject: Re: MySQL Deadlocks (Was: Re: Benchmark MySQL Performance On FreeBSD And Linux) Message-ID: <20060113000627.GY73071@wantadilla.lemis.com> In-Reply-To: <3C3376C1-0FED-4DA1-BB93-86A9198EAC3A@segment7.net> References: <a0cd7c070512151920s67ca6cd6h@mail.gmail.com> <20051216040722.GA503@wantadilla.lemis.com> <3C3376C1-0FED-4DA1-BB93-86A9198EAC3A@segment7.net>
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--vYzPTKoKRdF40tnF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thursday, 15 December 2005 at 22:18:58 -0800, Eric Hodel wrote: > On Dec 15, 2005, at 8:07 PM, Greg 'groggy' Lehey wrote: > >> On Friday, 16 December 2005 at 11:20:12 +0800, huang leo wrote: >>> >>> We had evaluated MySQL performance on FreeBSD and Linux. The >>> result is attached. >> >> This is some of the most plausible information I've seen in a while. >> I'm forwarding it to a MySQL internal list, and I expect we'll discuss >> it in much detail. >> >> A few comments: >> >> - I'd be very interested in the deadlocks you've been experiencing. >> If you have any additional information, please let me know. > > Some time back I experienced deadlocks with FreeBSD 5.4 and either > libthr or libpthread. linuxthreads had no issue. Other machines > with different hardware did not have the problem. Interesting. > It looks like I'll be able to perform some testing on that machine > sometime early in the new year. What is the correct forum for > discussing this when I get the opportunity to look into it again? I think this forum would be fine. Greg -- See complete headers for address and phone numbers. --vYzPTKoKRdF40tnF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFDxu8DIubykFB6QiMRArjLAJ9EsRA9zcmriU4pQoeelHwqNA/KmwCaA1ik Yw0MOff2tSWGSv3vEjFFN3E= =Ahtr -----END PGP SIGNATURE----- --vYzPTKoKRdF40tnF--
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