From: Jeremy Allison <jra@samba.org>
To: Steve French <smfrench@gmail.com>
Cc: linux-cifs@vger.kernel.org,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Big performance improvements seen with cifs async write patches even over localhost
Date: Fri, 27 May 2011 09:47:02 -0700 [thread overview]
Message-ID: <20110527164702.GB28520@samba2> (raw)
In-Reply-To: <BANLkTinVOaFwkCf33iKNk8GjqiiBEF5N3w@mail.gmail.com>
On Fri, May 27, 2011 at 12:14:19AM -0500, Steve French wrote:
> Did some informal testing of Jeff Layton's cifs async_write patch set
> tonight (recent kernel). Copying 700MB sequentially was 20% faster
> from cifs kernel client to Samba 3.6 with his patches - even mounted
> over localhost (where network latency is a much smaller issue) and
> with a slow laptop drive!
>
> I was simply doing
>
> time dd if=/dev/zero of=/mnt/null bs=1M count=700
>
> repeated 4 times each way (with old module, and with same code with
> Jeff's cifs async write code builtin), deleting the target file in
> between each run.
>
> I am looking forward to trying this over GigE tomorrow to servers with
> faster disks.
Very nice ! Now where's my encrypted transport Steve ? :-) :-)
Jeremy.
next prev parent reply other threads:[~2011-05-27 16:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-27 5:14 Big performance improvements seen with cifs async write patches even over localhost Steve French
2011-05-27 16:47 ` Jeremy Allison [this message]
2011-05-27 17:09 ` Steve French
2011-05-28 17:21 ` Steve French
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