Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 17 Nov 2002 12:59:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 17 Nov 2002 12:59:40 -0500 Received: from mx2.elte.hu ([157.181.151.9]:50130 "HELO mx2.elte.hu") by vger.kernel.org with SMTP id ; Sun, 17 Nov 2002 12:59:39 -0500 Date: Sun, 17 Nov 2002 20:23:08 +0100 (CET) From: Ingo Molnar Reply-To: Ingo Molnar To: Matthew Wilcox Cc: Linus Torvalds , Subject: Re: [PATCH] Run timers as softirqs, not tasklets In-Reply-To: <20021117171625.C7530@parcelfarce.linux.theplanet.co.uk> 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 Content-Length: 841 Lines: 23 On Sun, 17 Nov 2002, Matthew Wilcox wrote: > Seems to me that the timer code is attempting to replicate the softirq > characteristics at the tasklet level, which is a little pointless. > This patch converts timers to be a first-class softirq citizen. i agree with your patch. > Ingo, was there a reason you didn't do it this way to begin with? because there was an interim state of the timer code in where we still had a global timer context (ie. a timer tasklet). Only later did it get converted to completely unsynchronized per-CPU tasklets. Which indeed is what softirqs are :-) Ingo - 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/