Date: Wed, 3 Dec 2003 10:15:41 +0100 From: Sander Smeenk <ssm+fbsd-questions@freshdot.net> To: freebsd-questions@freebsd.org Subject: Re: Vinum & U320 SCSI, slower than UDMA100 IDE ? Message-ID: <20031203091541.GD15125@freshdot.net> In-Reply-To: <20031203010353.GE59596@wantadilla.lemis.com> References: <F55570A4-24A1-11D8-8DC1-000A95AF3D50@freebsd.org> <20031202092608.GA16710@freshdot.net> <20031203010353.GE59596@wantadilla.lemis.com>
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Quoting Greg 'groggy' Lehey (grog@FreeBSD.org):
> > But still, I doubt if bonnie++ is a good test, and I have a hard time
> > interpreting the results. I can publish the results somewhere, in a
> > while.
> Yes, bonnie++ tests the entire system, not just the disk.
> Try benchmarks/rawio.
That might explain why bonnie++ results were quite similar on IDE as on
SCSI. I just ran rawio on the plain IDE disk, and the RAID10 vinum
volume, and now results *ARE* 'astonishing' :)
Random read Sequential read Random write Sequential write
ID K/sec /sec K/sec /sec K/sec /sec K/sec /sec
IDE 1860.4 72 6799.4 415 1314.9 158 5914.3 361
VINUM 12008.3 724 14972.7 914 12072.5 726 13710.0 837
Thanks for all your help Greg!
Sander.
--
| Not one shred of evidence supports the notion that life is serious.
| 1024D/08CEC94D - 34B3 3314 B146 E13C 70C8 9BDB D463 7E41 08CE C94D
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