From owner-freebsd-current Wed Mar 29 18: 1:41 2000 Delivered-To: freebsd-current@freebsd.org Received: from backup.af.speednet.com.au (af.speednet.com.au [202.135.188.244]) by hub.freebsd.org (Postfix) with ESMTP id DA03137B80E for ; Wed, 29 Mar 2000 18:01:28 -0800 (PST) (envelope-from andyf@speednet.com.au) Received: from backup.af.speednet.com.au (andyf@backup.af.speednet.com.au [172.22.2.4]) by backup.af.speednet.com.au (8.9.3/8.9.3) with ESMTP id MAA14931; Thu, 30 Mar 2000 12:01:09 +1000 (EST) (envelope-from andyf@speednet.com.au) Date: Thu, 30 Mar 2000 12:01:08 +1000 (EST) From: Andy Farkas X-Sender: andyf@backup.af.speednet.com.au To: Matthew Dillon Cc: freebsd-current@FreeBSD.ORG Subject: Re: SMP buildworld times / performance tests In-Reply-To: <200003292301.PAA65915@apollo.backplane.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 29 Mar 2000, Matthew Dillon wrote: > time make -j 20 buildworld build FreeBSD-current using 4.0 kernel > > 4745.607u 1673.646s 1:29:07.45 120.0% 1323+1599k 8237+251565io 1615pf+0w > > time make -j 20 buildworld build FreeBSD-current using 5.0 kernel > > 4696.987u 1502.278s 1:10:34.17 146.4% 1359+1641k 10889+4270io 1779pf+0w Can I ask why is there a huge difference in the number of io (251k vs 4k)? What is so different between 4.0 and 5.0 that causes this? -- :{ andyf@speednet.com.au Andy Farkas System Administrator Speednet Communications http://www.speednet.com.au/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message