From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262375AbTD3Tpr (ORCPT ); Wed, 30 Apr 2003 15:45:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262376AbTD3Tpq (ORCPT ); Wed, 30 Apr 2003 15:45:46 -0400 Received: from 205-158-62-158.outblaze.com ([205.158.62.158]:5760 "HELO spf1.us.outblaze.com") by vger.kernel.org with SMTP id S262375AbTD3Tpm (ORCPT ); Wed, 30 Apr 2003 15:45:42 -0400 Message-ID: <20030430195748.18712.qmail@linuxmail.org> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) From: "Paolo Ciarrocchi" To: linux-kernel@vger.kernel.org Cc: akpm@digeo.com Date: Thu, 01 May 2003 03:57:48 +0800 Subject: [BUG ? in 2.5.68] time and sleep... X-Originating-Ip: 193.76.202.244 X-Originating-Server: ws5-8.us4.outblaze.com Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I dunno if what I'm reporting is a real problem or not... I was playing with both the time and sleep command, I wrote a simple script like the following for i in `seq 1 1 600`; do time sleep 1 done; Then I've run it in background and then I've run 'dbench 32'. As soon as dbench finis its work I've killed the process in background. The script was redirected to a file, this is the result of a simple cat file.txt|grep elapsed|cut -d " " -f 3 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.16elapsed <- 0:02.84elapsed <- 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.48elapsed <- 0:04.86elapsed <- 0:01.00elapsed 0:01.02elapsed 0:01.02elapsed 0:01.00elapsed 0:01.02elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.01elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.01elapsed 0:01.00elapsed 0:01.00elapsed 0:01.01elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.03elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.02elapsed 0:01.01elapsed 0:01.00elapsed 0:01.55elapsed <- 0:01.02elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.02elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.06elapsed 0:01.02elapsed 0:01.00elapsed 0:01.04elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.19elapsed <- 0:01.00elapsed <- 0:02.46elapsed <- 0:01.27elapsed <- 0:01.03elapsed <- 0:01.07elapsed <- 0:08.20elapsed <- 0:02.88elapsed <- 0:09.24elapsed <- 0:01.00elapsed 0:05.11elapsed <- 0:07.08elapsed <- 0:10.69elapsed <- 0:03.06elapsed <- 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed 0:01.00elapsed [...] So in a few cases sleep 1 seems to last for a few seconds. Is it OK ? Kernel is 2.5.68 preemption on. Ciao, Paolo -- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze