From: Benny Halevy <bhalevy@panasas.com>
To: Bart Van Assche <bart.vanassche@gmail.com>
Cc: Erez Zilber <erezz@voltaire.com>,
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: Wed, 06 Feb 2008 18:45:47 +0200 [thread overview]
Message-ID: <47A9E43B.3030407@panasas.com> (raw)
In-Reply-To: <e2e108260802060416w492db372mc09848edd365d441@mail.gmail.com>
On Feb. 06, 2008, 14:16 +0200, "Bart Van Assche" <bart.vanassche@gmail.com> wrote:
> On Feb 5, 2008 6:01 PM, Erez Zilber <erezz@voltaire.com> wrote:
>> 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.
>
> Sorry, but I'm afraid you got this wrong. When the iSER transport is
> used instead of TCP, all data is sent via RDMA, including unsolicited
> data. If you have look at the iSER implementation in the Linux kernel
> (source files under drivers/infiniband/ulp/iser), you will see that
> all data is transferred via RDMA and not via TCP/IP.
Regardless of what the current implementation is, the behavior you (Bart)
describe seems to disagree with http://www.ietf.org/rfc/rfc5046.txt.
Benny
>
> Bart Van Assche.
> -
next prev parent reply other threads:[~2008-02-06 16:48 UTC|newest]
Thread overview: 160+ 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 14:22 ` 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
2008-01-30 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
2008-02-06 12:16 ` Bart Van Assche
2008-02-06 16:45 ` Benny Halevy [this message]
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 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 16:43 ` FUJITA Tomonori
2008-02-05 17:09 ` Matteo Tescione
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 13:13 ` 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 20:06 ` 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 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
2008-02-05 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 23:12 ` Nicholas A. Bellinger
2008-02-04 23:16 ` 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 4:43 ` Matteo Tescione
2008-02-05 5:07 ` James Bottomley
2008-02-05 13:38 ` FUJITA Tomonori
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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