Comments on: Using the Google Perftools to speed up your MySQL server http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/ The repository for Debian-based LAMP servers Thu, 11 Mar 2010 14:44:52 +0100 http://wordpress.org/?v=2.9.2 hourly 1 By: Norio http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-1975 Norio Tue, 22 Dec 2009 12:28:25 +0000 http://www.dotdeb.org/?p=99#comment-1975 Thanks for all your hard work. Your PHP packages mean I can have bundled GD and your malloc stuff means my server's a little (lot) leaner and meaner. Thanks! Thanks for all your hard work. Your PHP packages mean I can have bundled GD and your malloc stuff means my server’s a little (lot) leaner and meaner. Thanks!

]]> By: Guillaume Plessis http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-345 Guillaume Plessis Mon, 08 Dec 2008 17:33:23 +0000 http://www.dotdeb.org/?p=99#comment-345 @Mark : Finding the cause of this performance decrease is something very "touchy" from a Etch to Lenny, because many parameters change : - libc6 and all libraries that MySQL uses evolved much. - they're not compiled using the same options - the kernel changed - ... I advise you to change each parameter one by one to find which one is affecting the performances. @Mark : Finding the cause of this performance decrease is something very “touchy” from a Etch to Lenny, because many parameters change :
- libc6 and all libraries that MySQL uses evolved much.
- they’re not compiled using the same options
- the kernel changed
- …

I advise you to change each parameter one by one to find which one is affecting the performances.

]]> By: mark http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-296 mark Sat, 22 Nov 2008 01:23:28 +0000 http://www.dotdeb.org/?p=99#comment-296 Guillaume, Wondering if you've seen this. I installed google-perftools on etch and had great improvement on mysql OLTP. However, following the same instruction and install it on lenny doesn't seem to have any effect on the performance. If anything, performance on lenny actually degraded. Could you think of anything that might be causing this in Lenny? thanks, Mark Guillaume,

Wondering if you’ve seen this. I installed google-perftools on etch and had great improvement on mysql OLTP. However, following the same instruction and install it on lenny doesn’t seem to have any effect on the performance. If anything, performance on lenny actually degraded. Could you think of anything that might be causing this in Lenny?

thanks,
Mark

]]> By: Guillaume Plessis http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-291 Guillaume Plessis Thu, 06 Nov 2008 22:38:09 +0000 http://www.dotdeb.org/?p=99#comment-291 @Guillaume : as soon as it appears in Sid, I think : http://packages.qa.debian.org/g/google-perftools.html @Guillaume : as soon as it appears in Sid, I think : http://packages.qa.debian.org/g/google-perftools.html

]]> By: Guillaume http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-290 Guillaume Thu, 06 Nov 2008 22:36:35 +0000 http://www.dotdeb.org/?p=99#comment-290 Version 0.99.2 released! What about releasing a new package? cheers! Version 0.99.2 released! What about releasing a new package? cheers!

]]> By: Guillaume Plessis http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-289 Guillaume Plessis Thu, 06 Nov 2008 14:57:15 +0000 http://www.dotdeb.org/?p=99#comment-289 I just uploaded amd64 packages of google-perftools, that are linked to lubunwind to fix some of the amd64 issues. Please make tests before deploying them in production and please send me feedbacks. I just uploaded amd64 packages of google-perftools, that are linked to lubunwind to fix some of the amd64 issues.

Please make tests before deploying them in production and please send me feedbacks.

]]> By: Bert Slagter http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-284 Bert Slagter Sat, 01 Nov 2008 14:00:21 +0000 http://www.dotdeb.org/?p=99#comment-284 Is there any chance that the perftools/amd64 problems will be fixed shortly? Is there any chance that the perftools/amd64 problems will be fixed shortly?

]]> By: Guillaume Plessis http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-108 Guillaume Plessis Tue, 09 Sep 2008 12:27:45 +0000 http://www.dotdeb.org/?p=99#comment-108 Sorry, but after some tries, I won't provide google-perftools on amd64, since it has some problem with libc6 : "The glibc built-in stack-unwinder on 64-bit systems has some problems with the perftools libraries. (In particular, the cpu/heap profiler may be in the middle of malloc, holding some malloc-related locks when they invoke the stack unwinder. The built-in stack unwinder may call malloc recursively, which may require the thread to acquire a lock it already holds: deadlock.)" Sorry, but after some tries, I won’t provide google-perftools on amd64, since it has some problem with libc6 :

“The glibc built-in stack-unwinder on 64-bit systems has some problems
with the perftools libraries. (In particular, the cpu/heap profiler
may be in the middle of malloc, holding some malloc-related locks when
they invoke the stack unwinder. The built-in stack unwinder may call
malloc recursively, which may require the thread to acquire a lock it
already holds: deadlock.)”

]]> By: Guillaume Plessis http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-5 Guillaume Plessis Wed, 27 Aug 2008 16:40:16 +0000 http://www.dotdeb.org/?p=99#comment-5 I'll repackage the version 0.98 of Google perftools in a Dotdeb flavour as soon as I recover my amd64 build machine. Please be patient. I’ll repackage the version 0.98 of Google perftools in a Dotdeb flavour as soon as I recover my amd64 build machine.

Please be patient.

]]> By: Mario http://www.dotdeb.org/2008/08/25/using-the-google-perftools-to-speed-up-your-mysql-server/comment-page-1/#comment-4 Mario Wed, 27 Aug 2008 10:09:42 +0000 http://www.dotdeb.org/?p=99#comment-4 Ok, got it working. I've used the 0.98 version from http://code.google.com/p/google-perftools/ which is also available as DEB and installed the DEV package also (don't know if this really matters ^^) Regards, Mario Ok, got it working. I’ve used the 0.98 version from http://code.google.com/p/google-perftools/ which is also available as DEB and installed the DEV package also (don’t know if this really matters ^^)

Regards,
Mario

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