From owner-freebsd-fs@FreeBSD.ORG Thu Jun 13 20:53:50 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 6881DCCD for ; Thu, 13 Jun 2013 20:53:50 +0000 (UTC) (envelope-from to.my.trociny@gmail.com) Received: from mail-ea0-x231.google.com (mail-ea0-x231.google.com [IPv6:2a00:1450:4013:c01::231]) by mx1.freebsd.org (Postfix) with ESMTP id F2F48122E for ; Thu, 13 Jun 2013 20:53:49 +0000 (UTC) Received: by mail-ea0-f177.google.com with SMTP id j14so7982628eak.22 for ; Thu, 13 Jun 2013 13:53:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=4c+0qwysDJICPu0sbZVEk/2hJJQIIqsV6lcAkVV2hjU=; b=HDBDrQUGhhmF84/wn9oHjQlBFQ3MR1H7LPUc5ejnRnr684zbchTFAZ2UvdLKUhn1Ny XGcb5c/WrNGdu+YjVbjnwxeUcGwrj1IUpRPvC7uJgLENgithDODaOt81Y+JUF2SeiKTQ pEL7s0L248ohOK66NngXGkk2R1cmXpipBHCMU1hPtyqhsQdz5Z9+TZp5B2ChqXoIzBdt 3SYWB0mdYipxJ+Zawyg/bglX6/RW3RIklLf1s2139TEDwzH5S42t+b3K7YbsDkVHJMwx c9z5gYuBBWE2FmO4sdr74EBp7l7I0B7XqCqfqiEaz6rJ8s/cANhqMYQPDDjmYmcCnSFd KyYg== X-Received: by 10.15.99.2 with SMTP id bk2mr3204097eeb.76.1371156828366; Thu, 13 Jun 2013 13:53:48 -0700 (PDT) Received: from localhost ([178.150.115.244]) by mx.google.com with ESMTPSA id y10sm46209983eev.3.2013.06.13.13.53.46 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 13 Jun 2013 13:53:47 -0700 (PDT) Sender: Mikolaj Golub Date: Thu, 13 Jun 2013 23:53:45 +0300 From: Mikolaj Golub To: intech Subject: Re: HAST initial sync speed Message-ID: <20130613205344.GB8732@gmail.com> References: <4C651B7E.5000805@gibfest.dk> <4C6B08BD.9080206@gibfest.dk> <20100818110655.GA2177@garage.freebsd.pl> <4C6BC0BA.9030303@gibfest.dk> <4C6BC35B.9040000@gibfest.dk> <20100818121133.GC2177@garage.freebsd.pl> <4C6BD521.1060807@gibfest.dk> <20100818125856.GE2177@garage.freebsd.pl> <4C6BDBB9.3020007@gibfest.dk> <1371123581091-5819759.post@n5.nabble.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1371123581091-5819759.post@n5.nabble.com> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Jun 2013 20:53:50 -0000 On Thu, Jun 13, 2013 at 04:39:41AM -0700, intech wrote: > Thought this threat is almost 3 years old, I want to ask if this > MAX_SEND_SIZE adopted in freebsd 8.3 and even fbsd9.1? > Indeed I have the same issue on 1Gb network - nodes performing sync at only > 10MBytes/sec ?! and I can't figure out what is happening as network itself > is not the problem, I tested it. What version are you running? There have been several changes since that thread was started related to the synchronization speed issue (MAX_SEND_SIZE among them). It is recommended to use recent versions. > And just one question fullsync is only option for HAST replication at time > of writing, so could HAST perform at 100MB/sec in this mode, and when we > expect memsync and async to be released? Synchronization is run in background by synchronization thread and hardly depends on replication mode. Anyway, HAST from CURRENT, STABLE/9 and STABLE/8 supports all three modes. The async mode was merged to stable branches in Jan 2012, and reached 8.4 and 9.1 (I am not sure about the later, one needs to check). The memsync mode was merged in Apr 2013, after 8.4 freeze, so there is no release that would contain it yet. -- Mikolaj Golub