From owner-freebsd-hackers Tue Nov 14 11:23: 8 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from brutus.conectiva.com.br (brutus.conectiva.com.br [200.250.58.146]) by hub.freebsd.org (Postfix) with ESMTP id 67B9737B479 for ; Tue, 14 Nov 2000 11:22:50 -0800 (PST) Received: from localhost (riel@localhost) by brutus.conectiva.com.br (8.11.1/8.11.1) with ESMTP id eAEJL9c28613; Tue, 14 Nov 2000 17:21:10 -0200 X-Authentication-Warning: duckman.distro.conectiva: riel owned process doing -bs Date: Tue, 14 Nov 2000 17:21:09 -0200 (BRDT) From: Rik van Riel X-Sender: riel@duckman.distro.conectiva To: Terry Lambert Cc: void , hackers@FreeBSD.ORG Subject: Re: "iowait" CPU state In-Reply-To: <200011101833.LAA23780@usr08.primenet.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 10 Nov 2000, Terry Lambert wrote: > > Thank you! This gets the me disk %busy, which is one of the things I > > was looking for. Now, can anyone tell me how to tell what percentage of > > processor time is being spent waiting for disk I/O to complete? > > Uh, none? > > If there is disk I/O pending, the processor just runs a > different process... am I missing your question? I guess it might be useful to see the difference between "true" idle time and time the system couldn't do anything useful because it was blocked on the disk (but /should/ have done something useful...). regards, Rik -- "What you're running that piece of shit Gnome?!?!" -- Miguel de Icaza, UKUUG 2000 http://www.conectiva.com/ http://www.surriel.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message