[openib-general] Re: IBM utilizing and testing openIB release 1 RCx

[Shirley Ma]

Michael,

Different workloads could use different send/recv queue sizes, also 
different HCAs could pick up different send/recv queue sizes to utilize 
the HCA performance. These parameters should be tunable instead of setting 
default values in IPoIB. Also Kevin pointed out, we don't want to waste 
the kernel memory when not necessary.

Without each HCA vendor support resizing send/recv/completion queue pairs, 
the tuning method is limited to only as loadable modules. Patch is under 
testing, and will be available for review soon.

Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-7638
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