Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 3 Oct 2001 12:54:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 3 Oct 2001 12:53:56 -0400 Received: from minus.inr.ac.ru ([193.233.7.97]:3091 "HELO ms2.inr.ac.ru") by vger.kernel.org with SMTP id ; Wed, 3 Oct 2001 12:53:40 -0400 From: kuznet@ms2.inr.ac.ru Message-Id: <200110031653.UAA13938@ms2.inr.ac.ru> Subject: Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5 To: mingo@elte.hu Date: Wed, 3 Oct 2001 20:53:58 +0400 (MSK DST) Cc: hadi@cyberus.ca, linux-kernel@vger.kernel.org, Robert.Olsson@data.slu.se, bcrl@redhat.com, netdev@oss.sgi.com, torvalds@transmeta.com, alan@lxorguk.ukuu.org.uk In-Reply-To: from "Ingo Molnar" at Oct 3, 1 05:28:08 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello! > In a generic computing environment i want to spend cycles doing useful > work, not polling. Ingo, "polling" is wrong name. It does not poll. :-) Actually, this misnomer is the worst thing whic I worried about. Citing my old explanation: >"Polling" is not a real polling in fact, it just accepts irqs as >events waking rx softirq with blocking subsequent irqs. >Actual receive happens at softirq. > >Seems, this approach solves the worst half of livelock problem completely: >irqs are throttled and tuned to load automatically. >Well, and drivers become cleaner. Alexey - 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/