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 -- Mark Callaghan [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
