MARK CALLAGHAN wrote: > On Fri, Oct 10, 2008 at 5:23 PM, MARK CALLAGHAN <[EMAIL PROTECTED]> wrote: >> On Fri, Oct 10, 2008 at 4:52 PM, <[EMAIL PROTECTED]> wrote: >>> I've just joined the list and have only poked about drizzle a bit, so please >>> don't beat me up too much. >>> >>> On 10/10/08 14:51, Monty Taylor wrote: >>> >>> (snip...) >>>> Coming soon: >>>> >>>> >>> (snip...) >>>> Examine HOARD allocator >>>> >>> Is HOARD already used by Drizzle? >>> One other worth investigating that has a lot of miles on it already >>> (especially in terms of scaling to lots of cores/threads and handling cache >>> alignment) is libumem. It too is portable (ported from OpenSolaris by the >>> OmniTI guys) and is also a dropin replacement for standard allocators. It's >>> newer than HOARD in that it has only been available in userspace since >>> Solaris 9, but it's a port of the original multithreaded slab allocator >>> which has been around since the mid '90s. In addition to it's >>> speed/concurrency, it has a bunch of things to simplify development. >>> >>> Two quick references: >>> https://labs.omniti.com/trac/portableumem/ >>> http://blogs.sun.com/ahl/entry/solaris_10_top_11_20 >>> >>> Anyway, if you're going to study baseline/HOARD, it could be worth looking >>> at baseline/HOARD/libumem. >>> >>> - Matt >>> >>> -- >>> Matt Ingenthron http://blogs.sun.com/mingenthron/ >>> email: [EMAIL PROTECTED] >>> >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~drizzle-discuss >>> Post to : [email protected] >>> Unsubscribe : https://launchpad.net/~drizzle-discuss >>> More help : https://help.launchpad.net/ListHelp >>> >> I would be interested in the results if anyone runs perf tests for >> Drizzle on a server with more than 4 cores and Hoard or libumem. Using >> tcmalloc with MySQL makes a huge difference for the oltp readonly >> sysbench test on that setup. >> >> http://code.google.com/p/google-mysql-tools/wiki/SmpPerformance >> >> -- >> Mark Callaghan >> [EMAIL PROTECTED] >> > > Not that I am pushing tcmalloc. We are still trying to figure it out... > http://code.google.com/p/google-perftools/issues/detail?id=78 >
We've got drizzle rigged with a --enable-tcmalloc configure flag already, btw... Monty _______________________________________________ Mailing list: https://launchpad.net/~drizzle-discuss Post to : [email protected] Unsubscribe : https://launchpad.net/~drizzle-discuss More help : https://help.launchpad.net/ListHelp
