Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261238AbVBFRNX (ORCPT ); Sun, 6 Feb 2005 12:13:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261233AbVBFRLy (ORCPT ); Sun, 6 Feb 2005 12:11:54 -0500 Received: from ylpvm15-ext.prodigy.net ([207.115.57.46]:60801 "EHLO ylpvm15.prodigy.net") by vger.kernel.org with ESMTP id S261238AbVBFRLP (ORCPT ); Sun, 6 Feb 2005 12:11:15 -0500 Date: Sun, 6 Feb 2005 09:10:41 -0800 From: Tony Lindgren To: Pavel Machek Cc: Benjamin Herrenschmidt , Arjan van de Ven , Martin Schwidefsky , Andrea Arcangeli , George Anzinger , Thomas Gleixner , john stultz , Zwane Mwaikambo , Lee Revell , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Dynamic tick, version 050127-1 Message-ID: <20050206171041.GC13936@atomide.com> References: <20050201212542.GA3691@openzaurus.ucw.cz> <20050201230357.GH14274@atomide.com> <20050202141105.GA1316@elf.ucw.cz> <20050203030359.GL13984@atomide.com> <20050203105647.GA1369@elf.ucw.cz> <20050203164331.GE14325@atomide.com> <20050204051929.GO14325@atomide.com> <20050205230017.GA1070@elf.ucw.cz> <20050206023344.GA15853@atomide.com> <20050206081137.GA994@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050206081137.GA994@elf.ucw.cz> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1291 Lines: 34 * Pavel Machek [050206 00:20]: > Hi! > > > > > Currently the suggested combo is local APIC + ACPI PM timer... > > > > > > Ok, works slightly better: time no longer runs 2x too fast. When TSC > > > is used, I get same behaviour as before ("sleepy machine"). With > > > "notsc", machine seems to work okay, but I still get 1000 timer > > > interrupts a second. > > > > Sounds like dyn-tick did not get enabled then, maybe you don't have > > CONFIG_X86_PM_TIMER, or don't have ACPI PM timer on your board? > > I do have CONFIG_X86_PM_TIMER enabled, but it seems by board does not > have such piece of hardware: > > pavel@amd:/usr/src/linux-mm$ dmesg | grep -i "time\|tick\|apic" > PCI: Setting latency timer of device 0000:00:11.5 to 64 > pavel@amd:/usr/src/linux-mm$ > > [Strange, I should see some messages about apic, no?] Yeah, looks like you don't have a local APIC then? Let me test the patch here with just PIT timer only. It also looks like you don't have TSC either? Or do you still have notsc cmdline option? Tony - 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/