Date: Sat, 26 Mar 2005 19:44:20 -0500 From: em1897@aol.com To: paulh@logicsquad.net, jpp@cloudview.com Cc: freebsd-questions@freebsd.org Subject: Re: hyper threading. Message-ID: <8C7007D3FB20275-A38-3B306@mblk-r33.sysops.aol.com> In-Reply-To: <20050327002325.GB64620@grover.logicsquad.net> References: <c6ef380c050326061976f164b@mail.gmail.com> <1641928994.20050326192811@wanadoo.fr> <8C700529A2DFD74-A44-3A157@mblk-d34.sysops.aol.com> <439876144.20050326220638@wanadoo.fr> <8C7006AE7E80573-FAC-3B652@mblk-r28.sysops.aol.com> <49251524.20050326234521@wanadoo.fr> <20050326232753.GA64620@grover.logicsquad.net> <4245F61E.2000300@cloudview.com> <20050327002325.GB64620@grover.logicsquad.net>
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Uh, thats not the correct load average to use. Use the numbers obtained from top or systat. Those loads will show Zero load when you're routing 100K pps. It doesnt measure kernel load. -----Original Message----- From: Paul A. Hoadley <paulh@logicsquad.net> To: John Pettitt <jpp@cloudview.com> Cc: freebsd-questions@freebsd.org Sent: Sun, 27 Mar 2005 09:53:25 +0930 Subject: Re: hyper threading. Hello, On Sat, Mar 26, 2005 at 03:54:06PM -0800, John Pettitt wrote: > > Paul A. Hoadley wrote: > > >I note a slight difference in the 10 minute load average in favour > >of the uniprocessor run (0.00 vs 0.10 in the hyperthreading run), > >though I doubt this alone could account for a 15% difference in > >total score. > > Notice the HT run had load on the box (0.31) when it started. If > you're going to run benchmarks you need to start with a clean reboot > before each run and make sure all the background daemons have been > killed and and the load is zero. You are absolutely right, and I did note the difference in load averages. I'm not making any claims---someone asked for measurements, and I happened to have these handy. -- Paul. w http://logicsquad.net/ h http://paul.hoadley.name/
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