MARK CALLAGHAN wrote: > On Thu, Jan 22, 2009 at 6:10 PM, Brian Aker <br...@tangent.org> wrote: >> Hi! >> >> Yes, that is what our core is. Early on I redid much of the IO handling code >> to make better use of it. It is not perfect though... I need to move around >> the IO code to tweak a bit more out of it. >> >> BTW I am surprised you found a multi-core benchmark where is was worse. Even >> for MySQL whenever we tested it, it came out on top. Though... with 4 core >> you set it to what, 2? The other threads, like Innodb's, are not counted in >> that number. >> >> Cheers, >> -Brian >> > > I tested 1, 2, 4, 8 and 16 concurrent users in sysbench. The > thread/connection pool had 20 threads.
How many cores does your test machine have? >> On Jan 23, 2009, at 1:05 PM, MARK CALLAGHAN wrote: >> >>> Do you have the thread pool code in your tree >>> (--thread_handling=pool-of-threads)? >>> Have you done anything to make it efficient? >>> >>> For me, sysbench OLTP readonly is up to 3X faster using blackhole when >>> pool-of-threads is not used -- http://bugs.mysql.com/bug.php?id=42288, >>> and this is on a 4 core server so I assume the overhead gets much >>> worse with more cores. >>> >>> -- >>> Mark Callaghan >>> mdcal...@gmail.com >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~drizzle-discuss >>> Post to : drizzle-discuss@lists.launchpad.net >>> Unsubscribe : https://launchpad.net/~drizzle-discuss >>> More help : https://help.launchpad.net/ListHelp >> -- >> _______________________________________________________ >> Brian "Krow" Aker, brian at tangent.org >> Seattle, Washington >> http://krow.net/ <-- Me >> http://tangent.org/ <-- Software >> _______________________________________________________ >> You can't grep a dead tree. >> >> >> >> > > > _______________________________________________ Mailing list: https://launchpad.net/~drizzle-discuss Post to : drizzle-discuss@lists.launchpad.net Unsubscribe : https://launchpad.net/~drizzle-discuss More help : https://help.launchpad.net/ListHelp
