[lwip-devel] [task #7497] Sort lists (pcb, netif, ...) for faster access

[Jonathan Larmour]

Follow-up Comment #1, task #7497 (project lwip):

First of all, it appears this is already done for TCP PCBs.

For raw and UDP PCBs, the comparisons in each loop are very expensive (well,
potentially for raw, since who knows what will get done in each callback), so
it is worth doing, even if there were only two in the list!

For netifs, it's less clear as I think most people will have a single netif
(not even loopback), and some may have 2, but infrequently more. The checks on
each iteration are not substantial, so IMHO I say leave it as present, which
is better for the single netif case.


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