Re: I/O performance

From: Niall Litchfield <niall.litchfield_at_gmail.com>
Date: Thu, 21 Jun 2012 18:52:21 +0100
Message-ID: <CABe10sZDVjDje0D4FoC2mB5rV4CYPOZischK0kUwjyXYxQLyXw_at_mail.gmail.com>

I think it well worth pointing out that Yurt Velikanov of Pythian has an excellent series of blog posts on SLOB and ORION at http://www.pythian.com/news/33299/my-slob-io-testing-index/ On Jun 21, 2012 6:38 PM, "GG" <grzegorzof_at_interia.pl> wrote:
> W dniu 2012-06-21 18:19, Allen, Brandon pisze:
> > I've researched this more and was a little surprised by my findings so
> figured I'd share them in case anyone else also finds them interesting and
> hoping someone else will correct me if I'm wrong. The following article
> explains the fact that the typical IOPS advertised or calculated for a
> given disk is based on two major assumptions:
> >
> > http://www.qdpma.com/Storage/IoQueueDepthStrategy.html
> >
> > 1) Random IO is spread across the entire disk
> > 2) A queue length (aka depth) of 1
> >
> Have You ever considered SLOB as a benchmark tool for such kind of tests ?
>
> http://kevinclosson.wordpress.com/2012/02/06/introducing-slob-the-silly-little-oracle-benchmark/
>
> Orion has his drawbacks and can be misleading .
> Regards
> GregG
>
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>
>

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Received on Thu Jun 21 2012 - 12:52:21 CDT