Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261624AbVASJqH (ORCPT ); Wed, 19 Jan 2005 04:46:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261651AbVASJqG (ORCPT ); Wed, 19 Jan 2005 04:46:06 -0500 Received: from gprs215-241.eurotel.cz ([160.218.215.241]:38328 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S261624AbVASJpx (ORCPT ); Wed, 19 Jan 2005 04:45:53 -0500 Date: Wed, 19 Jan 2005 10:45:26 +0100 From: Pavel Machek To: Tony Lindgren Cc: Benjamin Herrenschmidt , George Anzinger , john stultz , Andrea Arcangeli , Zwane Mwaikambo , Con Kolivas , Martin Schwidefsky , Linux Kernel list Subject: Re: [PATCH] dynamic tick patch Message-ID: <20050119094526.GC25623@elf.ucw.cz> References: <20050119000556.GB14749@atomide.com> <1106108467.4500.169.camel@gaston> <20050119050701.GA19542@atomide.com> <20050119052118.GA19591@atomide.com> <1106113466.4533.178.camel@gaston> <20050119062606.GA26932@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050119062606.GA26932@atomide.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1115 Lines: 26 Hi! > > No, that's fine, we already have to call it before entering the PM > > state, so I'll just pass it along and, at the low level, decide how > > deep to sleep based on that. > > > > I think I should also add some stats on the amount of interrupts, since > > it would be fairly inefficient to keep entering deep PM state on a > > machine with typically little timer interrupts but high HW interrupt > > (Rusty mentions case of packet forwarding routers or that kind of thing) > > Maybe some HW timer interrupt mask could be used? Also it would be > nice to check for file IO. Well, you could mask those interrupts, but it would ruin your packet-forwarding performance, so you probably do not want to do that... Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl! - 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/