Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269146AbUIBWYb (ORCPT ); Thu, 2 Sep 2004 18:24:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269189AbUIBWRa (ORCPT ); Thu, 2 Sep 2004 18:17:30 -0400 Received: from mx2.elte.hu ([157.181.151.9]:46061 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S269121AbUIBWNI (ORCPT ); Thu, 2 Sep 2004 18:13:08 -0400 Date: Fri, 3 Sep 2004 00:14:02 +0200 From: Ingo Molnar To: Lee Revell Cc: linux-kernel , "K.R. Foley" , Felipe Alfaro Solana , Daniel Schmitt , Mark_H_Johnson@raytheon.com, "P.O. Gaillard" Subject: Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-R0 Message-ID: <20040902221402.GA29434@elte.hu> References: <20040902063335.GA17657@elte.hu> <20040902065549.GA18860@elte.hu> <20040902111003.GA4256@elte.hu> <20040902215728.GA28571@elte.hu> <1094162812.1347.54.camel@krustophenia.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1094162812.1347.54.camel@krustophenia.net> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 821 Lines: 21 * Lee Revell wrote: > > i've given up on the netdev_backlog_granularity approach, and as a > > replacement i've modified specific network drivers to return at a safe > > point if softirq preemption is requested. > > Makes sense, netdev_max_backlog never made a difference on my system > (via-rhine driver). via-rhine does RX processing from the hardirq handler, this codepath is harder to break up. The NAPI ->poll functions used by e100 and 8193too are much easier to break up because RX throttling and re-trying is a basic property of NAPI. 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/