From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Clifton Subject: Re: less load less performance Date: Sun, 31 Oct 2010 17:01:13 +0000 Message-ID: <1288544473.7766.1.camel@pcjc2lap> References: <1288543487.17727.29.camel@zwerg> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from ppsw-41.csi.cam.ac.uk (ppsw-41.csi.cam.ac.uk [131.111.8.141]) by gabe.freedesktop.org (Postfix) with ESMTP id EEEFD9E9C4 for ; Sun, 31 Oct 2010 10:01:16 -0700 (PDT) In-Reply-To: <1288543487.17727.29.camel@zwerg> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Alexey Fisher Cc: "intel-gfx@lists.freedesktop.org" , "power@bughost.org" List-Id: intel-gfx@lists.freedesktop.org On Sun, 2010-10-31 at 17:44 +0100, Alexey Fisher wrote: > Hallo all, > > As i can understand if cpu do not get enough load it will work mostly in > C4 mode and graphic perfome slow too. I think there is some thing wrong > in this logic :) Yes, a little messed up.. try running your test at low screen-res with this app running (once per core): int main( int argc, char **argv ) { while (1); } (gcc loop.c -o loop) Do you get the high frames per second (non-full-screen) then? -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)