From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753114Ab0IMWAD (ORCPT ); Mon, 13 Sep 2010 18:00:03 -0400 Received: from cpoproxy1-pub.bluehost.com ([69.89.21.11]:50172 "HELO cpoproxy1-pub.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751805Ab0IMWAC convert rfc822-to-8bit (ORCPT ); Mon, 13 Sep 2010 18:00:02 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References:X-Mailer:Mime-Version:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=Yd6eqLwkTi/Q5kKxOO+jt2PDkXDqS5YjcovjNLlkXKrhgBVdiNpM2DOPuRWMFXR/zvmGr4q/JX9JkoPllKfqcCgiHgcoQusRZLvhihZftAljl6Uk1NwpqTAeKHS3z7E+; Date: Mon, 13 Sep 2010 14:59:52 -0700 From: Jesse Barnes To: Vasily Khoruzhick Cc: intel-gfx@lists.freedesktop.org, Thomas Gleixner , linux-kernel@vger.kernel.org Subject: Re: Interrupt latency on some 945GM platforms Message-ID: <20100913145952.2646a2f8@jbarnes-desktop> In-Reply-To: <201009140052.36670.anarsoul@gmail.com> References: <201009132336.17310.anarsoul@gmail.com> <201009140041.23645.anarsoul@gmail.com> <20100913144632.35420d68@jbarnes-desktop> <201009140052.36670.anarsoul@gmail.com> X-Mailer: Claws Mail 3.7.6 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 67.174.193.198 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Sep 2010 00:52:31 +0300 Vasily Khoruzhick wrote: > В сообщении от 14 of September 2010 00:46:32 автор Jesse Barnes написал: > > > Yes, you can set vblank_mode=0 in your environment or drirc. At least > > I think 0 is no vsync. :) > > That doesn't help, glxgears shows ~1000fps, but it's output is jerky. Is it smooth with clocksource=tsc? I wonder if the GPU batch interrupts are also getting delayed, and possibly timer ticks... -- Jesse Barnes, Intel Open Source Technology Center