Date: Thu, 01 Feb 2007 12:03:20 -0800 From: Julian Elischer <julian@elischer.org> To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-current@freebsd.org Subject: Re: lock contention etc. Message-ID: <45C24788.2040708@elischer.org> In-Reply-To: <eptgi3$3l7$1@sea.gmane.org> References: <45C24113.7000608@elischer.org> <eptgi3$3l7$1@sea.gmane.org>
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Ivan Voras wrote: > Julian Elischer wrote: > >> 3762.94 real 2627.66 user 1275.78 sys >> 2465.10 real 2958.94 user 1918.64 sys >> 2262.88 real 4322.31 user 3333.58 sys > >> (2 processors with HTT) (looks like 4 processors) >> -current, sched_4bsd > > I'm possibly stating the obvious, but did you try without HTT or on a > real 4proc machine? Much of the contention might be an artifact of HTT > (e.g. HTT "logical" processor blocking when real work could be done > because the internal processor units are busy elsewhere). > > yes I just sent an email stating that. And I'm trying it again with the virtual cores turned off.
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