[Lustre-discuss] copy_user_generic_c ?

[Roger Spellman]

I'm running an OST (not a client on an OST) with SW RAID 5.  My
interconnect is IB, and I'm using OFED 1.3.1.  I added OPROFILE to my
kernel, to see if I could find a bottleneck.  The biggest CPU user, at
25%, was copy_user_generic_c.  


Grepping through the linux, ofed, and lustre code, I cannot find where
this is being called.  Can anyone suggest where this is being called,
and why?

 

-Roger

 

 

Roger Spellman

Staff Engineer

Terascala, Inc.

508-588-1501

www.terascala.com <http://www.terascala.com/> 

 

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