Re: [lwip-users] Re transmission problem?

[Phil Perryman]

I have just tried Jordan's approach setting NO_SYS_NO_TIMERS=1.  A timer
interrupt is set up to trigger every 250ms which generates do_tcp_fasttmr
and do_tcp_slowtmr flags which are polled in main.c in order to call
tcp_fasttmr and tcp_slowtmr.

This yields a 6% increase in bandwidth over using the sys_check_timeouts
method and having an interrupt which triggers every 10ms in order to
generate a timestamp for the sys_now function.

Are there any disadvantages to using the faster method compared to using
sys_check_timeouts? ie. is it less reliable?

Phil


Simon Goldschmidt wrote:
> 
> "Jordan Dean" <address@hidden> wrote:
>> it's working great (20-30% throughput
>> increase
>> running tcp).
> 
> Compared to what? 20-30% increase after moving from 1.3.2 to 1.4.0? That
> would be nice.
> 
> 
> Simon
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