Date: 07 Nov 2000 16:13:30 +0100 From: Dag-Erling Smorgrav <des@ofug.org> To: void <float@firedrake.org> Cc: hackers@FreeBSD.ORG Subject: Re: "iowait" CPU state Message-ID: <xzpu29jx1b9.fsf@flood.ping.uio.no> In-Reply-To: void's message of "Tue, 7 Nov 2000 05:44:13 %2B0000" References: <20001107054413.A1983@firedrake.org>
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void <float@firedrake.org> writes: > I've been using Solaris a lot lately, and I've noticed that in e.g. > top's output, it has a distinct CPU state called "iowait", which seems > to be a pretty good indicator of how I/O-bound a system is. Is there > any reason that FreeBSD doesn't have such a state? It has several, depending on the type of I/O the process is waiting for: biord (waiting for a read operation to complete), biowr (waiting for a write operation to complete), select (waiting for descriptors to become readable / writable), etc. DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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