From: Ingo Molnar <mingo@elte.hu>
To: Suparna Bhattacharya <suparna@in.ibm.com>
Cc: linux-aio@kvack.org, akpm@osdl.org, drepper@redhat.com,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
jakub@redhat.com
Subject: Re: [PATCHSET 1][PATCH 0/6] Filesystem AIO read/write
Date: Thu, 28 Dec 2006 10:52:05 +0100 [thread overview]
Message-ID: <20061228095205.GG24765@elte.hu> (raw)
In-Reply-To: <20061228082308.GA4476@in.ibm.com>
* Suparna Bhattacharya <suparna@in.ibm.com> wrote:
> The following is a sampling of comparative aio-stress results with the
> patches (each run starts with uncached files):
>
> ---------------------------------------------
>
> aio-stress throughput comparisons (in MB/s):
>
> file size 1GB, record size 64KB, depth 64, ios per iteration 8
> max io_submit 8, buffer alignment set to 4KB
> 4 way Pentium III SMP box, Adaptec AIC-7896/7 Ultra2 SCSI, 40 MB/s
> Filesystem: ext2
>
> ----------------------------------------------------------------------------
> Buffered (non O_DIRECT)
> Vanilla Patched O_DIRECT
> ----------------------------------------------------------------------------
> Vanilla Patched
> Random-Read 10.08 23.91 18.91, 18.98
> Random-O_SYNC-Write 8.86 15.84 16.51, 16.53
> Sequential-Read 31.49 33.00 31.86, 31.79
> Sequential-O_SYNC-Write 8.68 32.60 31.45, 32.44
> Random-Write 31.09 (19.65) 30.90 (19.65)
> Sequential-Write 30.84 (28.94) 30.09 (28.39)
the numbers look very convincing to me!
Ingo
next prev parent reply other threads:[~2006-12-28 9:54 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-27 15:38 [RFC] Heads up on a series of AIO patchsets Suparna Bhattacharya
2006-12-27 16:25 ` Christoph Hellwig
2006-12-27 16:55 ` Ingo Molnar
2006-12-27 17:18 ` Ingo Molnar
2006-12-28 11:41 ` Evgeniy Polyakov
2007-01-02 21:38 ` Dan Williams
2007-01-03 13:35 ` Evgeniy Polyakov
2006-12-28 8:23 ` [PATCHSET 1][PATCH 0/6] Filesystem AIO read/write Suparna Bhattacharya
2006-12-28 8:34 ` [FSAIO][PATCH 1/6] Add a wait queue parameter to the wait_bit action routine Suparna Bhattacharya
2006-12-28 8:46 ` Suparna Bhattacharya
2006-12-28 8:36 ` [FSAIO][PATCH 2/8] Rename __lock_page to lock_page_slow Suparna Bhattacharya
2006-12-28 8:39 ` [FSAIO][PATCH 3/8] Routines to initialize and test a wait bit key Suparna Bhattacharya
2006-12-28 22:42 ` Andrew Morton
2006-12-28 8:39 ` [FSAIO][PATCH 4/8] Add a default io wait bit field in task struct Suparna Bhattacharya
2006-12-28 8:40 ` [FSAIO][PATCH 5/8] Enable wait bit based filtered wakeups to work for AIO Suparna Bhattacharya
2006-12-28 8:41 ` [FSAIO][PATCH 6/8] Enable asynchronous wait page and lock page Suparna Bhattacharya
2006-12-28 11:55 ` Christoph Hellwig
2006-12-28 14:47 ` Suparna Bhattacharya
2007-01-02 14:26 ` Christoph Hellwig
2007-01-04 6:50 ` Nick Piggin
2006-12-28 8:42 ` [FSAIO][PATCH 7/8] Filesystem AIO read Suparna Bhattacharya
2006-12-28 11:57 ` Christoph Hellwig
2006-12-28 14:15 ` Christoph Hellwig
2006-12-28 15:18 ` Suparna Bhattacharya
2007-01-02 14:29 ` Christoph Hellwig
2006-12-28 16:22 ` Jan Engelhardt
2006-12-28 16:56 ` Randy Dunlap
2006-12-28 8:44 ` [FSAIO][PATCH 8/8] AIO O_SYNC filesystem write Suparna Bhattacharya
2006-12-28 9:52 ` Ingo Molnar [this message]
2006-12-28 22:53 ` [PATCHSET 1][PATCH 0/6] Filesystem AIO read/write Andrew Morton
2007-01-03 22:15 ` Andrew Morton
2007-01-04 4:56 ` Suparna Bhattacharya
2007-01-04 5:51 ` Nick Piggin
2007-01-04 6:26 ` Suparna Bhattacharya
2007-01-04 6:50 ` Nick Piggin
2007-01-04 11:24 ` Suparna Bhattacharya
2007-01-05 4:56 ` Nick Piggin
2007-01-04 17:02 ` Andrew Morton
2007-01-04 17:49 ` Jens Axboe
2007-01-05 6:28 ` Suparna Bhattacharya
2007-01-05 7:02 ` Jens Axboe
2007-01-05 8:08 ` Suparna Bhattacharya
2007-01-05 8:32 ` Jens Axboe
2007-01-10 5:44 ` Suparna Bhattacharya
2007-01-11 1:08 ` Andrew Morton
2007-01-11 3:13 ` Suparna Bhattacharya
2007-01-11 4:52 ` Andrew Morton
2007-01-02 23:56 ` [RFC] Heads up on a series of AIO patchsets Zach Brown
[not found] ` <6f703f960701021640y444bc537w549fd6d74f3e9529@mail.gmail.com>
[not found] ` <A85B8249-FC4E-4612-8B28-02BC680DC812@oracle.com>
2007-01-03 1:18 ` Kent Overstreet
2007-01-04 20:33 ` Pavel Machek
2007-01-03 5:03 ` Suparna Bhattacharya
2007-01-05 0:36 ` Zach Brown
2007-01-03 7:23 ` [PATCHSET 2][PATCH 1/1] Combining epoll and disk file AIO Suparna Bhattacharya
2007-01-04 9:27 ` [PATCHSET 3][PATCH 0/5][AIO] - AIO completion signal notification v4 Bharata B Rao
2007-01-04 9:30 ` [PATCHSET 3][PATCH 1/5][AIO] - Rework compat_sys_io_submit Bharata B Rao
2007-01-04 9:32 ` [PATCHSET 3][PATCH 2/5][AIO] - fix aio.h includes Bharata B Rao
2007-01-04 9:34 ` [PATCHSET 3][PATCH 3/5][AIO] - Make good_sigevent non-static Bharata B Rao
2007-01-04 9:38 ` [PATCHSET 3][PATCH 4/5][AIO] - AIO completion signal notification Bharata B Rao
2007-01-04 9:40 ` [PATCHSET 3][PATCH 5/5][AIO] - Add listio support Bharata B Rao
2007-01-05 5:32 ` [PATCHSET 4][PATCH 1/1] AIO fallback for pipes, sockets and pollable fds Suparna Bhattacharya
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