Re: [Iscsitarget-devel] IET Performance

[Gopu Krishnan]

Scott,

Thanks to Ross for his info.
Scott I am a newbie to iSCSI Enterprise Target!

I have prior experience on FCoE protocol. I am working on 1G and 10G with IET as front-end. 
Moreover my requirement is all about to have multiple target ports(4 phy ports) with multiple session and thereby to ensure its performance. The above is applicable to 1G and 10G.
I am not sure about the current implementation with zero copy.

Thanks
Gopala krishnan Varatharajan.

On Sun, Nov 8, 2009 at 9:24 PM, Scott Kaelin <ska...@gmail.com> wrote:

On Sun, Nov 8, 2009 at 4:47 AM, Gopu Krishnan <gopu...@gmail.com> wrote:

Hi all,
 
I am working on iSCSI Enterprise Target. Could you please someone explain about the performance of the IET.
If so how the performance was calculated and what was the througput for the same.
 
Thanks
Gopala krishnan Varatharajan

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
Iscsitarget-devel mailing list
Iscsitar...@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel

You might want to provide a little more details on exactly what you are looking for. I know this has been discussed a number of times in the past by Ross. He even gives his benchmarks and the hardware that he is using.

-Scott


--
Scott Kaelin
0x6BE43783

[Ross Walker]

On Nov 8, 2009, at 4:47 AM, Gopu Krishnan <gopu...@gmail.com> wrote:

> Hi all,
>
> I am working on iSCSI Enterprise Target. Could you please someone
> explain about the performance of the IET.
> If so how the performance was calculated and what was the througput
> for the same.

IET performance is very good, given that one has good backend storage
performance and good networking (use bonnie++ or iozone or whatever
disk benchmark works for you and iperf for network).

Get the local disk and network performance to the best level you can,
then setup IET. It is frustrating to work the other way around. To
test IET performance test it on the initiator side with a disk
benchmark tool that tests random as well as sequential performance
with standard block sizes (4k 8k 16k 64k) and use a reasonable number
of outstanding IOs like 4.

-Ross

[Scott Kaelin]

On Sun, Nov 8, 2009 at 4:47 AM, Gopu Krishnan <gopu...@gmail.com> wrote:

Hi all,
 
I am working on iSCSI Enterprise Target. Could you please someone explain about the performance of the IET.
If so how the performance was calculated and what was the througput for the same.
 

Thanks
Gopala krishnan Varatharajan

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
Iscsitarget-devel mailing list
Iscsitar...@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/iscsitarget-devel