Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc
From: Stefan Roscher <hidden>
Date: 2009-04-22 16:00:57
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Possibly related (same subject, not in this thread)
- 2009-04-28 · Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc · Roland Dreier <hidden>
- 2009-04-28 · Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc · Stefan Roscher <hidden>
- 2009-04-28 · Re: [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc · Dave Hansen <hidden>
- 2009-04-21 · [PATCH 1/3] IB/ehca: Replace vmalloc with kmalloc · Stefan Roscher <hidden>
On Wednesday 22 April 2009 04:10:18 pm michael wrote:
Hi,
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. We don't need kzalloc because we fill the list right after the alloc. regards Stefan