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Date:      Fri, 13 Jun 2008 09:09:37 -0500
From:      Kirk Strauser <kirk@strauser.com>
To:        freebsd-questions@freebsd.org
Cc:        Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, David Kelly <dkelly@hiwaay.net>, FreeBSD Questions <questions@freebsd.org>
Subject:   Re: Stripe sizes with gstripe
Message-ID:  <200806130909.38419.kirk@strauser.com>
In-Reply-To: <20080613140130.GA8616@Grumpy.DynDNS.org>
References:  <200806121521.16237.kirk@strauser.com> <20080613090714.K4713@wojtek.tensor.gdynia.pl> <20080613140130.GA8616@Grumpy.DynDNS.org>

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On Friday 13 June 2008, David Kelly wrote:

> Still, I don't understand what is going on when I use md5(1) on a
> gigabyte file hosted on a gstripe partition with 128k stripes that
> "systat -v" reports transactions are usually between 42k and 43k each?

Even more unlikely, why are *my* numbers almost identical to yours?  Here's=
=20
a snapshot of mine at this very second:

Disks   da0   da1   da2   da3   da4
KB/t  26.77 42.05 41.70 41.98 41.70

where da[1-4] are my gstripe providers with a 128KB stripe size.  I find it=
=20
unlikely that our workloads are so similar that we'd coincidentally have=20
almost the exact same values.
=2D-=20
Kirk Strauser

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