Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 22 Feb 2003 12:30:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 22 Feb 2003 12:30:53 -0500 Received: from bitmover.com ([192.132.92.2]:679 "EHLO mail.bitmover.com") by vger.kernel.org with ESMTP id ; Sat, 22 Feb 2003 12:30:52 -0500 Date: Sat, 22 Feb 2003 09:40:56 -0800 From: Larry McVoy To: Linux Kernel Mailing List Subject: system time/2.4.18-3smp/3ware Message-ID: <20030222174056.GB13246@work.bitmover.com> Mail-Followup-To: Larry McVoy , Linux Kernel Mailing List Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i X-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1999 Lines: 34 This is watching 3 drives being tar-ed | wc -c in parallel (I suspect a bad drive, trying to narrow it down). The machine is a dual 1.6ghz Athlon, Tyan motherboard, 2GB of ram. I'm a little surprised at the system time - yeah, 72MB/sec is a far amount of I/O but should we really be eating up that much system time? load free cach swap pgin pgou dk0 dk1 dk2 dk3 ipkt opkt int ctx usr sys idl 3.16 11M 1.4G 0 74M 2.4K 0 0 0 0 0 0 1.3K 46K 0 92 108 3.23 11M 1.4G 0 71M 2.4K 0 0 0 0 0 0 1.3K 45K 1 88 111 3.29 11M 1.4G 0 72M 2.4K 0 0 0 0 0 0 1.2K 46K 2 105 93 3.35 11M 1.4G 0 73M 3.2K 0 0 0 0 0 0 1.2K 45K 1 100 99 3.32 11M 1.4G 0 74M 2.4K 0 0 0 0 0 0 1.2K 45K 1 98 101 3.53 11M 1.4G 0 74M 65K 0 0 0 0 0 0 1.3K 46K 4 103 93 I thought maybe it was the | wc -c (notice the context switches/sec) so I tried it with a cpio into /dev/null (tar neatly "optimizes" out any I/O when you are going to /dev/null, I really hate that) and it was still high load free cach swap pgin pgou dk0 dk1 dk2 dk3 ipkt opkt int ctx usr sys idl 0.78 12M 1.4G 0 66M 34K 0 0 0 0 0 0 945 2.0K 6 82 112 0.96 11M 1.4G 0 66M 2.4K 0 0 0 0 1.0 1.0 964 2.1K 6 79 115 1.12 11M 1.4G 0 66M 2.4K 0 0 0 0 0 0 1.0K 2.3K 7 82 111 1.27 11M 1.4G 0 66M 2.4K 0 0 0 0 0 0 972 2.1K 4 80 116 1.41 11M 1.4G 0 67M 2.4K 0 0 0 0 0 0 960 2.1K 5 87 108 1.62 11M 1.4G 0 67M 2.4K 0 0 0 0 0 0 1.0K 2.3K 7 83 110 -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - 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/