[openib-general] max_send_sge < max_sge

Talpey, Thomas Thomas.Talpey at netapp.com
Tue Jun 27 06:06:17 PDT 2006


At 02:42 AM 6/27/2006, Michael S. Tsirkin wrote:
>Unless you use it, passing the absolute maximum value supported by 
>hardware does
>not seem, to me, to make sense - it will just slow you down, and waste
>resources.  Is there a protocol out there that actually has a use for 30 sge?

It's not a protocol thing, it's a memory registration thing. But I agree,
that's a huge number of segments for send and receive. 2-4 is more
typical. I'd be interested to know what wants 30 as well...

Tom.





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