Re: [lwip-devel] more slow code

[Atte Kojo]

On Tuesday 04 April 2006 11:42, Christiaan Simons wrote:
> I think the linear search in find_entry()
> over the ARP table is the culprit.
>
> I guess lot off subsequent (burst) IP packets can come from the same
> source,
> without much use for updating the table.
> So update_arp_entry() should return as quickly as possible for that case.

One solution that comes to my mind is to keep a one-entry cache in 
find_entry(). This should at least speed up the case when the stack is 
communicating with a small number of hosts and when receiving bursts of IP 
packets.

-- 
Atte Kojo
Software Development Engineer
Elekta Neuromag Oy
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