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Subject: Re: Poor iSCSI performance with istgt.
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Date: Mon, 19 Nov 2012 17:05:44 +0200
From: Daniel Braniss <danny@cs.huji.ac.il>
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> 
> On 11/19/2012 02:48 PM, Daniel Braniss wrote:
> > try increasing the tag opening - see camcontrol(8)
> >
> > danny
> >
> >
> >
> I tried camcontrol tags daX -N 32 (and a few different values) but cant 
> see any change in speeds.
> 
> (pass25:iscsi0:0:0:0): dev_openings  30
> (pass25:iscsi0:0:0:0): dev_active    2
> (pass25:iscsi0:0:0:0): devq_openings 30
> (pass25:iscsi0:0:0:0): devq_queued   0
> (pass25:iscsi0:0:0:0): held          0
> (pass25:iscsi0:0:0:0): mintags       2
> (pass25:iscsi0:0:0:0): maxtags       255

I think there is some magic to allow istgt to do tagging, but at the moment
can't find it, sorry.

danny