This is results of disktest. Another example:

http://www.myri.com/scs/performance/Myri10GE/iSCSI/openiscsi.html

I recommend to take a look on disktest man page...

On Tue, 2008-05-13 at 18:51 -0500, Wesley Leggette wrote:
> Hello,
> 
> I have a question regarding the performance metrics on the Open iSCSI
> website.
> 
> Quoting:
> 
> 
> single iSCSI session:
> 
>     * 450MB/s Read and 450 MB/s Write for 64KB block
>     * 510 MB/s Read and 550 MB/s Write for 256KB block
>     * 65,000 IOPS - 1K, 58,000 IOPS - 2K, 50,000 IOPS with 4KB Read
> 
> (from http://www.open-iscsi.org/)
> 
> 
> You mention a 64KB block. Do you refer to the device block size here?
> What platform is this on? I was under the impression that on IA32
> systems you could not have greater than a 4K block size, but is this a
> device limit or is it only applicable when using a file system on top of
> the device?
> 
> If you did not do these metrics, can you point me to who did?
> 
> Thanks,
> 
> Wesley Leggette
> Senior Software Engineer
> Cleversafe, Inc.
> http://www.cleversafe.com
> 
> 
>  



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