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SubjectRe: New net features for added performance
On Sat, Feb 24, 2001 at 07:13:14PM -0500, Jeff Garzik wrote:
> Sorry... I should also point out that I was thinking of tulip
> architecture and similar architectures, where you have a fixed number of
> Skbs allocated at all times, and that number doesn't change for the
> lifetime of the driver.
> Clearly not all cases would benefit from skb recycling, but there are a
> number of rx-ring-based systems where this would be useful, and (AFAICS)
> reduce the work needed to be done by the system, and reduce the amount
> of overall DMA traffic by a bit.

A simple way to do it currently is just to compare the new skb with the old
one. If it is the same, do a shortcut. That should usually work out when the
system has enough memory.

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