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Date:      Tue, 05 Apr 2011 15:05:05 +0200
From:      Denny Schierz <linuxmail@4lin.net>
To:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: 8.2: ISCSI: ISTGT a bit slow, I think
Message-ID:  <1302008705.26698.283.camel@pcdenny>
In-Reply-To: <BANLkTi=jtgv7GVBpfxG2=2uhAi4TftPwPw@mail.gmail.com>
References:  <1301929838.26698.213.camel@pcdenny> <BANLkTimM_iHqJJa371i7Q9ebebgpJ1XBRA@mail.gmail.com> <A1B7A495-2BD8-4DC5-AD15-358E32C4C973@4lin.net> <BANLkTi=jtgv7GVBpfxG2=2uhAi4TftPwPw@mail.gmail.com>

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hi,

Am Dienstag, den 05.04.2011, 10:01 +0200 schrieb Claus Guttesen:

> The only setting I changed was:
>=20
>   QueueDepth 64
>=20
[...]

I've tested now the default params with your Queue, but nothing changed:

On same time startet with clusterssh:


root@dhcp1 ~ # dd if=3D/dev/zero of=3D/dev/sda bs=3D1M count=3D2048
2048+0 records in
2048+0 records out
2147483648 bytes (2.1 GB) copied, 33.3878 s, 64.3 MB/s


root@dhcp2:~# dd if=3D/dev/zero of=3D/dev/sdb bs=3D1M count=3D2048
2048+0 Datens=C3=A4tze ein
2048+0 Datens=C3=A4tze aus
2147483648 Bytes (2,1 GB) kopiert, 48,319 s, 44,4 MB/s


but, I did a plain network test again (iperf) and i got 111MB/s so, the
network is the problem. :-/

cu denny



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