Date: Thu, 5 Jul 2007 00:16:53 +0100 From: Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com> To: Jeff Roberson <jroberson@chesapeake.net> Cc: freebsd-current@freebsd.org Subject: Re: New SCHED_SMP diff. Message-ID: <200707050016.53605.Thomas.Sparrevohn@btinternet.com> In-Reply-To: <20070702232119.X552@10.0.0.1> References: <20070701224452.I552@10.0.0.1> <200707022031.32359.Thomas.Sparrevohn@btinternet.com> <20070702232119.X552@10.0.0.1>
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On Tuesday 03 July 2007 07:22:00 Jeff Roberson wrote: > > Hey Thomas, sorry for the bug, can you try the scheduler at: > > http://people.freebsd.org/~jeff/sched_smp.c > Hi Jeff Using sysctl kern.sched.steal_busy=1 did not change the picture 1267.20 real 2492.14 user 956.64 sys 2374102 voluntary context switches 877692 involuntary context switches 1269.38 real 2497.00 user 962.15 sys 2439504 voluntary context switches 889964 involuntary context switches The system seems to be a lot more "idle" than I normally see - but I don't have a reliable way of measuring the idle time - e.g. I guess I could try with vmstat but I an not sure its accurate
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