From owner-freebsd-fs@FreeBSD.ORG  Wed Jun  8 12:30:14 2011
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 52DF7106566B;
	Wed,  8 Jun 2011 12:30:14 +0000 (UTC)
	(envelope-from to.my.trociny@gmail.com)
Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com
	[209.85.161.54])
	by mx1.freebsd.org (Postfix) with ESMTP id A31738FC0C;
	Wed,  8 Jun 2011 12:30:13 +0000 (UTC)
Received: by fxm11 with SMTP id 11so412331fxm.13
	for <multiple recipients>; Wed, 08 Jun 2011 05:30:12 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:from:to:cc:subject:references:x-comment-to
	:sender:date:in-reply-to:message-id:user-agent:mime-version
	:content-type; bh=jM5TBuXo1vf8ha0SGMRU8S+ePfy7PhjPyRoOFxXhya4=;
	b=rYp13DhEjZPFOqtzXDzTKCZKRgpiyK8WOL0+GIyLv1MQO4XZfKMCarVRWyvp87q1/P
	VLov4uE4zESRUzeUaXNd3UC9QDv9g8ZKKLKdS/7ZFRKwto3hfkHqKmkBnzmgfc3dkokj
	Q1xG5Kq2yL6OtckCelG31OReYD46P9tswrHQM=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=from:to:cc:subject:references:x-comment-to:sender:date:in-reply-to
	:message-id:user-agent:mime-version:content-type;
	b=IEjpyL3OzXMSwIvgLHcBXzAXPmAMaehi6KE4GVXAvXXAEerqNGhNRuENttJLlTXOYo
	N7n0C5AgJn/4jqZW+QTBptaYyKhBnKl1kTTe7P/lmKKXZ1054bxmTpO7qqla6HlkR5Ps
	eLDHswqjarCCni/Tt0xcbn2id6ejfKmifav2o=
Received: by 10.223.17.141 with SMTP id s13mr3977892faa.23.1307536212647;
	Wed, 08 Jun 2011 05:30:12 -0700 (PDT)
Received: from localhost ([95.69.172.154])
	by mx.google.com with ESMTPS id l26sm210749fam.45.2011.06.08.05.30.10
	(version=TLSv1/SSLv3 cipher=OTHER);
	Wed, 08 Jun 2011 05:30:11 -0700 (PDT)
From: Mikolaj Golub <trociny@freebsd.org>
To: Yurius Radomskyi <yurius.r@gmail.com>
References: <BANLkTi=BiOcQVuR92Z514Nkf9PWVsM84gA@mail.gmail.com>
X-Comment-To: Yurius Radomskyi
Sender: Mikolaj Golub <to.my.trociny@gmail.com>
Date: Wed, 08 Jun 2011 15:30:09 +0300
In-Reply-To: <BANLkTi=BiOcQVuR92Z514Nkf9PWVsM84gA@mail.gmail.com> (Yurius
	Radomskyi's message of "Thu, 2 Jun 2011 11:47:26 +0300")
Message-ID: <86r574ijzi.fsf@kopusha.home.net>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (berkeley-unix)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: freebsd-fs@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: hast syncronization speed issue
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Jun 2011 12:30:14 -0000


On Thu, 2 Jun 2011 11:47:26 +0300 Yurius Radomskyi wrote:

 YR> Hi,

 YR> I have a HAST device set up between two systems. I experience very low
 YR> speed with dirty blocks synchronization after split-brain condition
 YR> been recovered: it's 200KB/s average on 1Gbit link. On the other side,
 YR> when i copy a big file to the zfs partition  that is created on top of
 YR> the hast device the synchronization speed between the host is 50MB/s
 YR> (wich is not too high for 1Gbit link, but acceptable.)

Could you please try the patch (the kernel needs rebuilding)?

http://people.freebsd.org/~trociny/uipc_socket.c.patch

The patch was committed to current (r222454) and is going to be MFCed after
some time.

-- 
Mikolaj Golub