[lwip-users] [lwip] PERF macros

[Kieran Mansley]

I'm interested in doing some profiling on lwIP to identify current
bottlenecks.  I notice the PERF_START and PERF_STOP macros, which look
like they provide some measurement of performance of some key routines.
Can anyone explain (briefly) what it is they do, as defined for the unix
architecture?

Cheers,

Kieran

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