Apparent strange disk behaviour in 6.0

[Poul-Henning Kamp]

In message <42EBD958.6040402 at elischer.org>, Julian Elischer writes:

>> If you know your queue-theory, you also know why busy% is
>> a pointless measurement:  It represents the amount of time
>> where the queue is non-empty.  It doesn't say anything about
>> how quickly the queue drains or fills.
>
>exactly.. I'm trying to work out why teh read and write queues are empty for so 
>much time in a transaction that SHOULD be disk bound....

I am very confident that the disk statistics collected in GEOM don't lie:
your disks are idle because nobody submits I/O requests.

Look at your scheduler...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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