From owner-freebsd-questions@FreeBSD.ORG Fri Nov 18 14:57:29 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4E96B106564A for ; Fri, 18 Nov 2011 14:57:29 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: from smtprelay06.ispgateway.de (smtprelay06.ispgateway.de [80.67.31.96]) by mx1.freebsd.org (Postfix) with ESMTP id 0F5E88FC18 for ; Fri, 18 Nov 2011 14:57:28 +0000 (UTC) Received: from [78.35.81.42] (helo=fabiankeil.de) by smtprelay06.ispgateway.de with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.68) (envelope-from ) id 1RRPsd-0005GU-Bj; Fri, 18 Nov 2011 15:57:27 +0100 Date: Fri, 18 Nov 2011 15:57:06 +0100 From: Fabian Keil To: freebsd-questions@freebsd.org Message-ID: <20111118155706.72749e3b@fabiankeil.de> In-Reply-To: <4EC66850.2030008@dichotomia.fr> References: <4EC66850.2030008@dichotomia.fr> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/rWGxD0W2O5dT0gebI9.8IXd"; protocol="application/pgp-signature" X-Df-Sender: Nzc1MDY3 Cc: Jerome Herman Subject: Re: Geom Gate usage and perf X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Nov 2011 14:57:29 -0000 --Sig_/rWGxD0W2O5dT0gebI9.8IXd Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Jerome Herman wrote: > Just wondering if anyone is using geom gate and could help me with huge=20 > perf issue I am having. > Right now the set up is such : 3 drives on the same machine A, exported=20 > through geom gate and connected to machine B. > On machine B I format the drives as freebsd-vinum and mount them in=20 > stripping+mirroring. >=20 > The end goal is to have High Availability drives. >=20 > The setup is working, but the perf are awfull. Thinking It was due to=20 > software stripping and mirroring slowing the process down I tried with=20 > only one drive with a standard UFS format. >=20 > The perf are still horrible. When the drive is mounted locally on=20 > machine A and I copy data with rsync from machine B; I have a steady=20 > 12MB/s data transfer rate. > When the same drive is mounted with geom gate on machine B, the copy=20 > rate is around 6KB/s to 25KB/s >=20 > The drive was tested for I/O problems twice, and nothing was found. >=20 > Any idea or suggestion as to where the problem might come from ? I haven't used ggate in years, but if I remember correctly I had performance issues as well until I significantly increased the send and receive buffers for ggatec and ggated. I think I never reached the performance I had hoped for, but at least it got good enough to be usable. Fabian --Sig_/rWGxD0W2O5dT0gebI9.8IXd Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk7GckoACgkQBYqIVf93VJ1rSQCdExTwoqW2Xx8EYzwmkFQhts41 orsAnRMUj6plvBu5ZXbvmaxnJ5kzhJM3 =BIHv -----END PGP SIGNATURE----- --Sig_/rWGxD0W2O5dT0gebI9.8IXd--