"Bill Auerbach" <[email protected]>:
> I haven’t benchmarked to be able to provide factual data, but I’ve done a lot
> of optimization and tweaking of lwIP to improve bandwidth and my study of
> pbufs and memory pools did not show the need for improvement considering all
> of the other things required to handle a TCP connection.
I saw the patch not as speed optimization but as a way to simplify the netif
driver: to provide a robust implementation, a netif driver would have to ensure
it retries if pbuf_alloc fails because the pool is empty (to prevent a
deadlock). This patch prevents a netif driver having to implement some sort of
timer because it just gets notified when pbufs are available again.
Simon
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