[ewg] [PATCH] mlx4_core: request MSIX vectors as much as there CPU cores

Roland Dreier rdreier at cisco.com
Wed May 5 12:51:19 PDT 2010


 > We found it in performance work of our EN (10G) driver

What does this have to do with performance?

Do you have a system where num_possible_cpus() differs significantly
from num_online_cpus()?  What kernel is that with?  As far as I can
tell, for x86 they should only be different if there genuinely are CPUs
that are available for hotplug.

 - R.
-- 
Roland Dreier <rolandd at cisco.com> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html



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