[ofa-general] Re: should it be possible to run SDP over a T320?

[Rick Jones]

Pradeep Satyanarayana wrote:
> Rick Jones wrote:
> 
>>>> Was this data these posted on-list? I didn't see it.
>>>>
>>>
>>> Hasn't been.  I presume that folks are curious?-)
>>
>>
>>               RedHat Enterprise Linux 5
>>               Single-Stream Performance
>>
>>                              Bulk Transfer                "Latency"
>>                          Unidir            Bidir
>>     Card          Mbit/s SDx   SDr   Mbit/s SDx   SDr   Tran/s SDx   SDr
>> -------------------------------------------------------------------------
>>  AD313A  IPoIB 1.1 2970 4.418 4.544  3530  3.59  3.95  19290 n/a   n/a
>>  AD313A  SDP   1.1 7810 0.453 1.048 12820  0.69  0.68  38030 26.29 26.29
>>  AD313A  SDP p0    7810 0.346 0.527 12670  0.42  0.43  19380 n/a   n/a
>>  AD313A  IPoIP 1.2 5510 0.426 1.593  5730  n/a   n/a   18990 n/a   n/a
>>  AD313A  SDP   1.2 7820 0.409 1.047 12890  0.64  0.68  41988 25.89 26.32
>>  AD313A SDP p0 1.2 7820 0.309 0.517 12760  0.36  0.36  19800 15.47 15.72
>>
>> netperf, -s 1M -S 1M -m 64K on the unidir tests (TCP_STREAM, 
>> SDP_STREAM), -s 1M -S 1M -r 64K -b 12 for the bidirectional 
>> [SDP|TCP]_RR test, -r 1 for the [TCP|SDP]_RR test.
>>
> 
> What was the mtu used for these tests?

The defaults, which are, IIRC, 2044 bytes for 1.1 and  65520 bytes for 1.2.

Netperf will convert "1M" to 1048576 and "64K" to 65536.

rick jones
wonders what other numbers are out there...