Date: Fri, 22 Oct 2004 00:36:31 +0300 From: Petri Helenius <pete@he.iki.fi> To: jesk <jesk@killall.org> Cc: threads@freebsd.org Subject: Re: FreeBSD5.3-RC1 MySQL Performance Message-ID: <41782BDF.8040301@he.iki.fi> In-Reply-To: <000901c4b7b4$2113ab70$45fea8c0@turbofresse> References: <000901c4b7b4$2113ab70$45fea8c0@turbofresse>
next in thread | previous in thread | raw e-mail | index | archive | help
jesk wrote: >the benchmark is executing 1000 sql-select queries*10 concurrent clients on >a 90k row table with a random not really high cacheable where-statement on >the index: >---- >15985 queries per second >(pthreads without process scope threads, sched_4bsd and preemption) >6139 queries per second >(pthreads with process scope threads, sched_4bsd and preemption) >10779 queries per second >(linuxthreads, sched_4bsd and preemption) >fedora result: >11900 queries per second >---- > > >maybe someone got some hints for improvement of this situation... > > Do you have any idea why process scope threads are faster than system scope threads? My gut feeling is that it should be exactly opposite. Pete
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?41782BDF.8040301>