From: Christoph Hellwig <hch@infradead.org>
To: Ravi Shankar <ravi.v.shankar@oracle.com>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>,
"Abhilash Sankar - ERS, HCL Tech" <Abhilash.S@hcl.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-iscsi-target-dev@googlegroups.com"
<linux-iscsi-target-dev@googlegroups.com>, "Yuvarani C - ERS ,
HCLTech" <yuvaranic@hcl.com>,
"Bagavathy Kumar Mahendran - ERS,
HCL Tech" <bagavathykumar.m@hcl.com>,
target-devel <target-devel@vger.kernel.org>
Subject: Re: LIO performance Issue
Date: Fri, 16 Sep 2011 09:51:26 -0400 [thread overview]
Message-ID: <20110916135126.GA27583@infradead.org> (raw)
In-Reply-To: <4E72564E.8000406@oracle.com>
On Thu, Sep 15, 2011 at 12:47:26PM -0700, Ravi Shankar wrote:
> Another area to consider improvement is how SCSI Target Data phase
> are handled.
> The target framework should split SCSI data phases into multiple
> smaller IO to increase
> performance. In other work instead of synchronous data phase it need
> to be asynchronous.
There isn't any good in-kernel interface to do asynchronous file I/O.
If you use the iblock backend you'll get asynchronous behaviour.
prev parent reply other threads:[~2011-09-16 13:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-14 14:00 LIO performance Issue Abhilash Sankar - ERS, HCL Tech
2011-09-14 20:10 ` Nicholas A. Bellinger
2011-09-15 19:47 ` Ravi Shankar
2011-09-16 13:51 ` Christoph Hellwig [this message]
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