Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 25 Apr 2001 23:52:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 25 Apr 2001 23:52:28 -0400 Received: from www.wen-online.de ([212.223.88.39]:15884 "EHLO wen-online.de") by vger.kernel.org with ESMTP id ; Wed, 25 Apr 2001 23:52:18 -0400 Date: Thu, 26 Apr 2001 05:51:39 +0200 (CEST) From: Mike Galbraith X-X-Sender: To: Dan Maas cc: Michael Rothwell , Subject: Re: #define HZ 1024 -- negative effects? In-Reply-To: <004f01c0cdf4$f17f4ce0$0701a8c0@morph> Message-ID: 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 Wed, 25 Apr 2001, Dan Maas wrote: > The only other possibility I can think of is a scheduler anomaly. A thread > arose on this list recently about strange scheduling behavior of processes > using local IPC - even though one process had readable data pending, the > kernel would still go idle until the next timer interrupt. If this is the > case, then HZ=1024 would kick the system back into action more quickly... Hmm. I've caught tasks looping here (experimental tree but..) with interrupts enabled, but schedule never being called despite having many runnable tasks. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/