[PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc
michael at evidence.eu.com
Thu Apr 23 02:12:49 EST 2009
Stefan Roscher wrote:
> On Wednesday 22 April 2009 04:10:18 pm michael wrote:
>> I don't take the point, if it is not import use the vmalloc. Why you try
>> with a kmalloc
>> alloc first? and why do not use kzalloc?
> Because kmalloc() is faster than vmalloc() causing a huge performance win
> when someone allocates a large number of queue pairs. We fall back to
> vmalloc() only if kmalloc() can't deliver the memory chunk.
Sorry I catch later the performace issue.
> We don't need kzalloc because we fill the list right after the alloc.
> regards Stefan
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