[ofw] some WinOF questions

[Diego Guella]

>----- Original Message ----- 
>From: "Tzachi Dar" <tzachid at mellanox.co.il>
>SDP is indeed not part of WinOF. It is a component that is supplied by
>Mellanox (and some of it's partners) only. If you want to try it than
>the simplest way is to install WinIB 1.3. If for some reason you want to
>stick to the OFED libraries than I'll have to provide you with the SDP
>binaries that much that version. (actually due to some bug in the
>interoperability, I'll probably have to give you a fix in any case).

I tried out IPoIB on WinOF 1.0 and 1.0.1rc2, but I got a peak BW of about 
1400MBit/s (133MB/s), with 100% utilization of the CPU of the Windows XP 
machine. This is clearly not a useful scenario for our application.
Now I'll make some tests with WinIB 1.3, included trying to use SDP. You'll 
hear soon from me the results.

>Please also note that:
>1) Windows SDP was tested against OFED 1.2 and not 1.1 (as far as I can
>remember there were problems that were fixed in 1.2)

My Linux distribution is SUSE Professional 9.3.
There are some hacks that need to be done on the install script to get OFED 
installed, so for installing OFED 1.2 maybe I'll have to do some other 
hacks, and can't get 1.2 installed. I'll try first with OFED 1.1, then 
perhaps move to OFED 1.2

>2) You can use Iperf as a benchmark that works both on Linux and on
>windows. From my experiments with this tool, SDP should give BW that is
>at least 3 times higher than IPOIB.

I don't need a benchmark :)
I want to see the performance of the benchmarks in my program, if I could 
get them, and evaluate wich solution is the fastest with less CPU involved.

>Thanks
>Tzachi