Re: [PATCH RFC 2/2] implement transport scan callout for iscsi

open_iscsi
2005-05-25T13:08:08Z

yes and no ...

For single session, yes.

For multiple sessions, no ... lots of different initiators with aggragate of
400K into single target.

Eddy

----- Original Message -----
From: "Ming Zhang" <mingz@ele.uri.edu>
To: "open-iscsi" <open-iscsi@googlegroups.com>
Cc: "James Bottomley" <James.Bottomley@SteelEye.com>; "Mike Christie"
<michaelc@cs.wisc.edu>; "'SCSI Mailing List'" <linux-scsi@vger.kernel.org>
Sent: Wednesday, May 25, 2005 9:00 AM
Subject: Re: [PATCH RFC 2/2] implement transport scan callout for iscsi

about this 400K IOPS, both ini and target are using your HW solution?

ming

On Tue, 2005-05-24 at 21:28 -0400, open_iscsi wrote:
> Regarding the numbers, we get 400,000 IOPS with our hardware solution
> using
> multiple connections and multiple micro-engines. I have not tried
> multi-pathing but I can tell you that I had to count clocks to get
> that
> number and found that even a few extra clocks could mean a lot. So
> since
> multi-pathing takes a lot of extra clocks, then I think there is a
> benefit.
> However with a software solution the extra clocks for the multi-
> pathing may
> not be significant.