From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270699AbTGNRSt (ORCPT ); Mon, 14 Jul 2003 13:18:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270684AbTGNRQQ (ORCPT ); Mon, 14 Jul 2003 13:16:16 -0400 Received: from x35.xmailserver.org ([208.129.208.51]:29888 "EHLO x35.xmailserver.org") by vger.kernel.org with ESMTP id S270697AbTGNRPf (ORCPT ); Mon, 14 Jul 2003 13:15:35 -0400 X-AuthUser: davidel@xmailserver.org Date: Mon, 14 Jul 2003 10:22:59 -0700 (PDT) From: Davide Libenzi X-X-Sender: davide@bigblue.dev.mcafeelabs.com To: Mike Galbraith cc: Linux Kernel Mailing List Subject: Re: [patch] SCHED_SOFTRR starve-free linux scheduling policy ... In-Reply-To: <5.2.1.1.2.20030714174719.01bce3f8@pop.gmx.net> Message-ID: References: <5.2.1.1.2.20030714100438.01be5008@pop.gmx.net> <5.2.1.1.2.20030714063443.01bcc5f0@pop.gmx.net> <5.2.1.1.2.20030714063443.01bcc5f0@pop.gmx.net> <5.2.1.1.2.20030714100438.01be5008@pop.gmx.net> <5.2.1.1.2.20030714174719.01bce3f8@pop.gmx.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 14 Jul 2003, Mike Galbraith wrote: > Yes, and it worked fine. No cpu load I tossed at it caused a skip. I tried yesterday a thud.c load and it did not get a single skip here either. It is interesting what thud.c can do to latency (let's not talk about irman because things get really nasty). With a simple `thud 5` the latency rised to more then one full second, as you can see by the graphs inside the SOFTRR page. No buffer size can cope with that. - Davide