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Date:      Tue, 20 Nov 2012 23:22:56 +0100
From:      =?iso-8859-1?Q?Peter_Ankerst=E5l?= <peter@pean.org>
To:        freebsd-scsi@freebsd.org
Subject:   Slow writes with iSCSI.
Message-ID:  <36ADB83B-B6E4-435A-A910-E20F9A060307@pean.org>

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Hi,

I recently posted this to the stable list without any luck:=20
=
http://lists.freebsd.org/pipermail/freebsd-stable/2012-November/070607.htm=
l

At this point I have found out that its only writes that are slow. If =
tagging is set to 1
I write about 30MB/s per target and read like 130MB/s per target.

If I change tagged openings to 4 (camcontrol tags daX -n 4) I get like =
260MB/s
reads  per target (which in my case saturates the network at about =
500MB/s) but
something like 2-3MB/s writes. I have tried to measure speeds on raw =
devices,
ZFS and UFS and it gives about the same result. Am I missing something?=20=

(my configs are in the original post)

Thanks!=




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