[ofa-general] SDP and stock kernel gets BUG?

[Amir Vadai]

OFED-1.5 SDP has many changes in the data path.
Performance should be improved - although it is still work in progress.

You could use /proc/sdp/sdpstats and /proc/sdp/sdpprf facilities that
has been added in 1.5.
(enabled in sdp.h by defining macros SDPSTATS_ON and SDP_PROFILING).

What packet sizes do you use? what is the setup in general?

Let me know if you find something interesting.

- Amir

On 07/14/2009 05:31 PM, Jason Gunthorpe wrote:
> On Tue, Jul 14, 2009 at 04:14:59PM +0300, Amir Vadai wrote:
>   
>> Hi,
>>
>> I will post a fix soon.
>>     
> Thanks Amir!
>
> BTW - we are testing SDP here and trying to track down a performance
> regression - using the 2.6.30.1 combined with OFED-1.5 SDP performs
> poorly while 2.6.27.10 combined with OFED-1.4 SDP performs well. We
> have not yet narrowed down what is going on.. Don't suppose you have
> any insight?
>
> Regards,
> Jason
>