From: Dave Chinner <david@fromorbit.com>
To: Sergey Meirovich <rathamahata@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com
Subject: Re: [PATCH 0/3] support appending AIO writes
Date: Fri, 7 Feb 2014 09:51:32 +1100 [thread overview]
Message-ID: <20140206225132.GE13647@dastard> (raw)
In-Reply-To: <CA+QCeVQxTk=ZNucLG4WPrQC=oHf1sFtJ7nj5dhJg=BUyuVbsOQ@mail.gmail.com>
On Thu, Feb 06, 2014 at 06:29:11PM +0200, Sergey Meirovich wrote:
> On 5 February 2014 16:52, Sergey Meirovich <rathamahata@gmail.com> wrote:
> > Hi Christoph,
> >
> > Thanks a lot! Applied your patches on top of 3.13.1 and they indeed
> > make a huge difference.
> >
> >
> > Append AIO
> >
> > chunk size w/o patches with patches
> > ===================================================
> > 4k 6.8834 Mb/sec 1762.15 IOps 31.542 Mb/sec 8074.75 IOps
> > 8k 15.321 Mb/sec 1961.12 IOps 62.873 Mb/sec 8047.71 IOps
> > 16k 28.257 Mb/sec 1808.46 IOps 139.35 Mb/sec 8918.45 IOps
>
> And with simple wrapper around io_submit() difference for 4 k is even
> more impressive than with sysbench:
>
> without patches:
> =====================
> bandwidth (MiB/s): 11.89
> IOps: 3044.58
>
> with patches:
> =====================
> bandwidth (MiB/s): 118.16
> IOps: 30250.17
Thanks for providing numbers, Sergey. It's clear that we need to
make this change from them. Can I add a "Tested-by: Sergey Meirovich
<rathamahata@gmail.com>" to the patches?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2014-02-06 22:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 17:24 [PATCH 0/3] support appending AIO writes Christoph Hellwig
2014-02-04 17:24 ` [PATCH 1/3] direct-io: add flag to allow aio writes beyond i_size Christoph Hellwig
2014-02-04 17:24 ` [PATCH 2/3] xfs: always use unwritten extents for direct I/O writes Christoph Hellwig
2014-02-04 17:24 ` [PATCH 3/3] xfs: allow appending aio writes Christoph Hellwig
2014-02-04 22:29 ` [PATCH 0/3] support appending AIO writes Dave Chinner
2014-02-05 6:57 ` Christoph Hellwig
2014-02-05 7:59 ` Dave Chinner
2014-02-05 13:55 ` Al Viro
2014-02-05 14:52 ` Sergey Meirovich
2014-02-06 16:29 ` Sergey Meirovich
2014-02-06 22:51 ` Dave Chinner [this message]
2014-02-07 9:40 ` Sergey Meirovich
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