Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 10 Apr 2001 07:54:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 10 Apr 2001 07:54:18 -0400 Received: from router-100M.swansea.linux.org.uk ([194.168.151.17]:517 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Tue, 10 Apr 2001 07:54:05 -0400 Subject: Re: No 100 HZ timer ! To: schwidefsky@de.ibm.com Date: Tue, 10 Apr 2001 12:54:24 +0100 (BST) Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), ak@suse.de (Andi Kleen), mbs@mc.com (Mark Salisbury), jdike@karaya.com (Jeff Dike), linux-kernel@vger.kernel.org In-Reply-To: from "schwidefsky@de.ibm.com" at Apr 10, 2001 01:38:43 PM X-Mailer: ELM [version 2.5 PL1] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > If you do the accounting on reschedule, how do you find out how much ti= > me > has been spent in user versus kernel mode? Or do the Intel chips have t= > wo > counters, one for user space execution and one for the kernel? Unfortunately not so you'd need to do a little bit per syscall, at least for non trivial syscalls. - 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/