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>
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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. Petehome | help
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