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From: "Jack Wang" <jack_wang@usish.com>
To: 'Dan Williams' <dan.j.williams@intel.com>,
	'Christoph Hellwig' <hch@infradead.org>
Cc: James.Bottomley@hansenpartnership.com,
	linux-scsi@vger.kernel.org, "'dave.jiang'" <dave.jiang@intel.com>
Subject: RE: [PATCH 1/3] libsas: sas_queuecommand doesnt need host_lock
Date: Tue, 19 Jul 2011 16:56:22 +0800	[thread overview]
Message-ID: <CC21AAFDD1FD4B9F966CA47480582FF3@usish.com.cn> (raw)
In-Reply-To: <CAA9_cmeHGbdW+c-RE+Lk9+kNy0arxHjU=OPcJZZtnUTLRuH8Kw@mail.gmail.com>


> On Mon, Jul 11, 2011 at 11:49 AM, Christoph Hellwig <hch@infradead.org>
wrote:
> >
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> 
> Acked-by: Dan Williams <dan.j.williams@intel.com>
> 
> Dave can add his Tested-by, but looks like a nice bump in iops.
[Jack Wang] 
I test it with pm8001, using 512b read with 12 6G sas disks bumps ~460K iops
from 340K iops, but using 512b write performance drops from 340K to 240K.

Dan and Dave , could you share your number?
> 
> --
> Dan
> --
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  parent reply	other threads:[~2011-07-19  9:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-11 18:49 [PATCH 0/3] RFC: libsas queuecommand fixups Christoph Hellwig
2011-07-11 18:49 ` [PATCH 1/3] libsas: sas_queuecommand doesnt need host_lock Christoph Hellwig
2011-07-18 23:40   ` Dan Williams
2011-07-18 23:42     ` Jiang, Dave
2011-07-19  8:56     ` Jack Wang [this message]
2011-07-23  2:05       ` 'Christoph Hellwig'
2011-07-11 18:49 ` [PATCH 2/3] libsas: reindent sas_queuecommand Christoph Hellwig
2011-07-11 18:49 ` [PATCH 3/3] libsas: fix sas_queuecommand return values Christoph Hellwig
2011-07-12  1:16   ` Jack Wang
2011-07-16 19:00   ` [PATCH 3/3 v2] " Christoph Hellwig
2011-07-12 22:10 ` [PATCH 0/3] RFC: libsas queuecommand fixups ersatz splatt
2011-08-22 14:45 ` Christoph Hellwig
2011-08-23 13:57   ` James Bottomley
2011-08-24  1:16     ` ersatz splatt

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