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] _______________________________________________ Mailing list: https://launchpad.net/~drizzle-discuss Post to : [email protected] Unsubscribe : https://launchpad.net/~drizzle-discuss More help : https://help.launchpad.net/ListHelp
