From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 Date: Sun, 14 Sep 2008 08:24:54 +0200 Message-ID: <1221373494.4979.1.camel@marge.simson.net> References: <48CAE7A0.8000004@linux-foundation.org> <1221306287.5213.111.camel@marge.simson.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1221306287.5213.111.camel-YqMYhexLQo1vAv1Ojkdn7Q@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Christoph Lameter Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List On Sat, 2008-09-13 at 13:44 +0200, Mike Galbraith wrote: > 2.6.27-rc6 > Throughput 1037.98 MB/sec 4 procs > > 16384 87380 1 1 60.00 80293.80 > 16384 87380 1 1 60.00 80266.60 > 16384 87380 1 1 60.00 80394.83 > 16384 87380 1 1 60.01 80397.27 goes back to current real .27 config Throughput 1022.52 MB/sec 4 procs 16384 87380 1 1 60.00 75941.95 16384 87380 1 1 60.01 76002.46 16384 87380 1 1 60.01 76367.55 16384 87380 1 1 60.00 76188.66 ... demodularizes seriously over-configured network Throughput 750.175 MB/sec 4 procs 16384 87380 1 1 60.00 49270.35 16384 87380 1 1 60.01 49233.86 16384 87380 1 1 60.00 49265.72 16384 87380 1 1 60.00 49227.00 Very un-good thing to try. Stupid thing too? -Mike