From: Erez Zilber <erezz@Voltaire.COM>
To: Bart Van Assche <bart.vanassche@gmail.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
rdreier@cisco.com, James.Bottomley@hansenpartnership.com,
torvalds@linux-foundation.org, akpm@linux-foundation.org,
vst@vlnb.net, linux-scsi@vger.kernel.org,
scst-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: Integration of SCST in the mainstream Linux kernel
Date: Tue, 05 Feb 2008 19:01:20 +0200 [thread overview]
Message-ID: <47A89660.1080804@Voltaire.COM> (raw)
In-Reply-To: <e2e108260801300038q10132aafs1dbc6e5400fc47bb@mail.gmail.com>
Bart Van Assche wrote:
> On Jan 30, 2008 12:32 AM, FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> wrote:
>
>> iSER has parameters to limit the maximum size of RDMA (it needs to
>> repeat RDMA with a poor configuration)?
>>
>
> Please specify which parameters you are referring to. As you know I
> had already repeated my tests with ridiculously high values for the
> following iSER parameters: FirstBurstLength, MaxBurstLength and
> MaxRecvDataSegmentLength (16 MB, which is more than the 1 MB block
> size specified to dd).
>
>
Using such large values for FirstBurstLength will give you poor
performance numbers for WRITE commands (with iSER). FirstBurstLength
means how much data should you send as unsolicited data (i.e. without
RDMA). It means that your WRITE commands were sent without RDMA.
Erez
next prev parent reply other threads:[~2008-02-05 17:01 UTC|newest]
Thread overview: 147+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-23 14:22 Integration of SCST in the mainstream Linux kernel Bart Van Assche
2008-01-23 17:11 ` Vladislav Bolkhovitin
2008-01-29 20:42 ` James Bottomley
2008-01-29 21:31 ` Roland Dreier
2008-01-29 23:32 ` FUJITA Tomonori
2008-01-30 1:15 ` [Scst-devel] " Vu Pham
2008-01-30 8:38 ` Bart Van Assche
2008-01-30 10:56 ` FUJITA Tomonori
2008-01-30 11:40 ` Vladislav Bolkhovitin
2008-01-30 13:10 ` Bart Van Assche
2008-01-30 13:54 ` FUJITA Tomonori
2008-01-31 7:48 ` Bart Van Assche
2008-01-31 13:25 ` Nicholas A. Bellinger
2008-01-31 14:34 ` Bart Van Assche
2008-01-31 14:44 ` Nicholas A. Bellinger
2008-01-31 15:50 ` Vladislav Bolkhovitin
2008-01-31 16:25 ` [Scst-devel] " Joe Landman
2008-01-31 17:08 ` Bart Van Assche
2008-01-31 17:13 ` Joe Landman
2008-01-31 18:12 ` David Dillow
2008-02-01 11:50 ` Vladislav Bolkhovitin
2008-02-01 11:50 ` Vladislav Bolkhovitin
2008-02-01 12:25 ` Vladislav Bolkhovitin
2008-01-31 17:14 ` Nicholas A. Bellinger
2008-01-31 17:40 ` Bart Van Assche
2008-01-31 18:15 ` Nicholas A. Bellinger
2008-02-01 9:08 ` Bart Van Assche
2008-02-01 8:11 ` Bart Van Assche
2008-02-01 10:39 ` Nicholas A. Bellinger
2008-02-01 11:04 ` Bart Van Assche
2008-02-01 12:05 ` Nicholas A. Bellinger
2008-02-01 13:25 ` Bart Van Assche
2008-02-01 14:36 ` Nicholas A. Bellinger
2008-01-30 16:34 ` James Bottomley
2008-01-30 16:50 ` Bart Van Assche
2008-02-02 15:32 ` Pete Wyckoff
2008-02-05 17:01 ` Erez Zilber [this message]
2008-02-06 12:16 ` Bart Van Assche
2008-02-06 16:45 ` Benny Halevy
2008-02-06 17:06 ` Roland Dreier
2008-02-18 9:43 ` Erez Zilber
2008-02-18 11:01 ` Bart Van Assche
2008-02-20 7:34 ` Erez Zilber
2008-02-20 8:41 ` Bart Van Assche
2008-01-30 11:18 ` Vladislav Bolkhovitin
2008-01-30 8:29 ` Bart Van Assche
2008-01-30 16:22 ` James Bottomley
2008-01-30 17:03 ` Bart Van Assche
2008-02-05 7:14 ` [Scst-devel] " Tomasz Chmielewski
2008-02-05 13:38 ` FUJITA Tomonori
2008-02-05 16:07 ` Tomasz Chmielewski
2008-02-05 16:21 ` Ming Zhang
2008-02-05 16:43 ` FUJITA Tomonori
2008-02-05 17:09 ` Matteo Tescione
2008-02-06 1:29 ` FUJITA Tomonori
2008-02-06 2:01 ` Nicholas A. Bellinger
2008-01-30 11:17 ` Vladislav Bolkhovitin
2008-02-04 12:27 ` Vladislav Bolkhovitin
2008-02-04 13:53 ` Bart Van Assche
2008-02-04 17:00 ` David Dillow
2008-02-04 17:08 ` Vladislav Bolkhovitin
2008-02-05 16:25 ` Bart Van Assche
2008-02-05 18:18 ` Linus Torvalds
2008-02-04 15:30 ` James Bottomley
2008-02-04 16:25 ` Vladislav Bolkhovitin
2008-02-04 17:06 ` James Bottomley
2008-02-04 17:16 ` Vladislav Bolkhovitin
2008-02-04 17:25 ` James Bottomley
2008-02-04 17:56 ` Vladislav Bolkhovitin
2008-02-04 18:22 ` James Bottomley
2008-02-04 18:38 ` Vladislav Bolkhovitin
2008-02-04 18:54 ` James Bottomley
2008-02-05 18:59 ` Vladislav Bolkhovitin
2008-02-05 19:13 ` James Bottomley
2008-02-06 18:07 ` Vladislav Bolkhovitin
2008-02-07 13:13 ` [Scst-devel] " Bart Van Assche
2008-02-07 13:45 ` Vladislav Bolkhovitin
2008-02-07 22:51 ` david
2008-02-08 10:37 ` Vladislav Bolkhovitin
2008-02-09 7:40 ` david
2008-02-08 11:33 ` Nicholas A. Bellinger
2008-02-08 14:36 ` Vladislav Bolkhovitin
2008-02-08 23:53 ` Nicholas A. Bellinger
2008-02-15 15:02 ` Bart Van Assche
2008-02-07 15:38 ` [Scst-devel] " Nicholas A. Bellinger
2008-02-07 20:37 ` Luben Tuikov
2008-02-08 10:32 ` Vladislav Bolkhovitin
2008-02-09 7:32 ` Luben Tuikov
2008-02-11 10:02 ` Vladislav Bolkhovitin
2008-02-08 11:53 ` [Scst-devel] " Nicholas A. Bellinger
2008-02-08 14:42 ` Vladislav Bolkhovitin
2008-02-09 0:00 ` Nicholas A. Bellinger
2008-02-04 18:29 ` Linus Torvalds
2008-02-04 18:49 ` James Bottomley
2008-02-04 19:06 ` Nicholas A. Bellinger
2008-02-04 19:19 ` Nicholas A. Bellinger
2008-02-04 19:44 ` Linus Torvalds
2008-02-04 20:06 ` [Scst-devel] " 4news
2008-02-04 20:24 ` Nicholas A. Bellinger
2008-02-04 21:01 ` J. Bruce Fields
2008-02-04 21:24 ` Linus Torvalds
2008-02-04 22:00 ` Nicholas A. Bellinger
2008-02-04 22:57 ` Jeff Garzik
2008-02-04 23:45 ` Linus Torvalds
2008-02-05 0:08 ` Jeff Garzik
2008-02-05 1:20 ` Linus Torvalds
2008-02-05 8:38 ` Bart Van Assche
2008-02-05 17:50 ` Jeff Garzik
2008-02-06 10:22 ` Bart Van Assche
2008-02-06 14:21 ` Jeff Garzik
2008-02-05 13:05 ` Olivier Galibert
2008-02-05 18:08 ` Jeff Garzik
2008-02-05 19:01 ` Vladislav Bolkhovitin
2008-02-04 22:43 ` Alan Cox
2008-02-04 17:30 ` Douglas Gilbert
2008-02-05 2:07 ` [Scst-devel] " Chris Weiss
2008-02-05 14:19 ` FUJITA Tomonori
2008-02-04 22:59 ` Nicholas A. Bellinger
2008-02-04 23:00 ` James Bottomley
2008-02-04 23:12 ` Nicholas A. Bellinger
2008-02-04 23:16 ` Nicholas A. Bellinger
2008-02-05 18:37 ` James Bottomley
2008-02-04 23:04 ` Jeff Garzik
2008-02-04 23:27 ` Linus Torvalds
2008-02-05 19:01 ` Vladislav Bolkhovitin
2008-02-05 19:12 ` Jeff Garzik
2008-02-05 19:21 ` Vladislav Bolkhovitin
2008-02-06 0:11 ` Nicholas A. Bellinger
2008-02-06 1:43 ` Nicholas A. Bellinger
2008-02-12 16:05 ` [Scst-devel] " Bart Van Assche
2008-02-13 3:44 ` Nicholas A. Bellinger
2008-02-13 6:18 ` CONFIG_SLUB and reproducable general protection faults on 2.6.2x Nicholas A. Bellinger
2008-02-13 16:37 ` Nicholas A. Bellinger
2008-02-06 0:17 ` Integration of SCST in the mainstream Linux kernel Nicholas A. Bellinger
2008-02-06 0:48 ` Nicholas A. Bellinger
2008-02-06 0:51 ` Nicholas A. Bellinger
2008-02-05 0:07 ` Matt Mackall
2008-02-05 0:24 ` Linus Torvalds
2008-02-05 0:42 ` Jeff Garzik
2008-02-05 0:45 ` Matt Mackall
2008-02-05 4:43 ` [Scst-devel] " Matteo Tescione
2008-02-05 5:07 ` James Bottomley
2008-02-05 13:38 ` FUJITA Tomonori
2008-02-05 19:00 ` Vladislav Bolkhovitin
2008-02-05 17:10 ` Erez Zilber
2008-02-05 19:02 ` Bart Van Assche
2008-02-05 19:02 ` Vladislav Bolkhovitin
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