Re: problems with e1000 and jumboframes

From: Herbert Xu
Date: Fri Aug 04 2006 - 01:57:57 EST

Chris Leech <chris.leech@xxxxxxxxx> wrote:
> We could try and only use page allocations for older e1000 devices,
> putting headers and payload into skb->frags and copying the headers
> out into the skb->data area as needed for processing. That would do
> away with large allocations, but in Jesse's experiments calling
> alloc_page() is slower than kmalloc(), so there can actually be a
> performance hit from trying to use page allocations all the time.

Interesting. Could you guys post figures on alloc_page speed vs. kmalloc?

Also, getting memory slower is better than not getting them at all :)
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