How to account CPU idle time waiting for I/O?

To: debian-user@lists.debian.org
Subject: How to account CPU idle time waiting for I/O?
From: Fernando Fernandez <ferdez@despodata.pt>
Date: Wed, 03 Jun 1998 10:33:57 +0100
Message-id: <[🔎] 35751885.9308D15F@despodata.pt>

Hello!

Can anyone point me to some info about how to find how much
time the CPU is wasting waiting for disk I/O?

I used to do this with sar but it seems it's not available.
vmstat only displays idle time, not distinguishing real
idle time from "waiting for i/o" idle time...

Thanks in advance,

Fernando
-- 
Fernando Fernandez
http://despodata.pt/ddata/pessoal/ferdez.htm


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