From: Or Gerlitz <ogerlitz@voltaire.com>
To: Zhiqi Tao <zhiqi.tao@oracle.com>
Cc: Mike Christie <michaelc@cs.wisc.edu>, linux-scsi@vger.kernel.org
Subject: Re: Land iscsi iser performance patches to upstream
Date: Tue, 4 Jan 2011 09:22:09 +0200 [thread overview]
Message-ID: <4D22CAA1.5060600@voltaire.com> (raw)
In-Reply-To: <4D224E7B.5040704@cs.wisc.edu>
On 12/16/2010 12:15 AM, Zhiqi Tao wrote:
>> In particular patch 2 and 3 are matching the iscsi_tcp.c values and
>> have improved the performance that we got. It will be beneficial to
>> include them into the vanilla kernel.
When saying "patch 2 and 3 have improved the performance that we got" -
did you mean the performance with iser or with iscsi-tcp? if with iser,
can you spare few words on the test and what was the performance
improvement?
These patches allow to support e.g 1MB size commands, vs. the 512KB
limit of the upstream bits, however, we manage to see peak performance
with much IO sizes (e.g 128KB, 256KB), so I wasn't sure what these
patches could buy you performance wise.
Or.
next prev parent reply other threads:[~2011-01-04 7:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-16 5:02 [RFC] uas host lock removal conversion Matthew Wilcox
2010-12-16 6:15 ` Land iscsi iser performance patches to upstream Zhiqi Tao
2011-01-03 22:32 ` Mike Christie
2011-01-04 7:17 ` Or Gerlitz
2011-01-04 7:22 ` Or Gerlitz [this message]
2010-12-16 10:44 ` [RFC] uas host lock removal conversion Christoph Hellwig
2010-12-16 14:00 ` Matthew Wilcox
2010-12-16 14:04 ` James Bottomley
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