Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758209AbXFVO30 (ORCPT ); Fri, 22 Jun 2007 10:29:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756113AbXFVO3S (ORCPT ); Fri, 22 Jun 2007 10:29:18 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:54639 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755525AbXFVO3R (ORCPT ); Fri, 22 Jun 2007 10:29:17 -0400 Subject: Re: [RFC PATCH 0/6] Convert all tasklets to workqueues From: Arjan van de Ven To: Steven Rostedt Cc: LKML , Linus Torvalds , Ingo Molnar , Andrew Morton , Thomas Gleixner , Christoph Hellwig , john stultz , Oleg Nesterov , "Paul E. McKenney" , Dipankar Sarma , "David S. Miller" , matthew.wilcox@hp.com, kuznet@ms2.inr.ac.ru In-Reply-To: <20070622040014.234651401@goodmis.org> References: <20070622040014.234651401@goodmis.org> Content-Type: text/plain Organization: Intel International BV Date: Fri, 22 Jun 2007 07:25:09 -0700 Message-Id: <1182522309.2672.11.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.10.2 (2.10.2-2.fc7) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 711 Lines: 21 > The most part, tasklets today are not used for time critical functions. > Running tasklets in thread context is not harmful to performance of > the overall system. That is a bold statement... > But running them in interrupt context is, since > they increase the overall latency for high priority tasks. .... since by moving this to process context you do add latency between the hardirq and the tasklet, and I can see that having performance impact easily. - 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/