Re: New net features for added performance
Rusty Russell (rusty@linuxcare.com.au)
Sun, 25 Feb 2001 22:49:39 +1100
In message <oupsnl3k5gs.fsf@pigdrop.muc.suse.de> you write:
> Jeff Garzik <jgarzik@mandrakesoft.com> writes:
>
> > Advantages: A de-allocation immediately followed by a reallocation is
> > eliminated, less L1 cache pollution during interrupt handling.
> > Potentially less DMA traffic between card and host.
> >
> > Disadvantages?
>
> You need a new mechanism to cope with low memory situations because the
> drivers can tie up quite a bit of memory (in fact you gave up unified
> memory management).
Also, you still need to "clean" the skb (it can hold device and nfct
references).
Rusty.
--
Premature optmztion is rt of all evl. --DK
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