Re: bonnie++ uninterruptible under heavy I/O load

From: Simone Piunno
Date: Fri Mar 11 2005 - 11:08:01 EST

Alle 16:54, venerdì 11 marzo 2005, Jens Axboe ha scritto:

> I'd guess that your problem is queueing, if you have a ton of pending
> requests in the hardware it will take forever to get a new request
> through. There's nothing the io scheduler can do to help you there,
> really. The /proc/driver/cciss/cciss0 you originall posted, was that
> from before or after running bonnie++? I have no latency experience with
> cciss, at least IDE/SATA/SCSI should work alright.

It was after running bonnie++.

Simone Piunno, chief architect
Wireless Solutions SPA - DADA group
Europe HQ, via Castiglione 25 Bologna tel:+39512966811 fax:+39512966800
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