[zeromq-dev] zmq::poll timeout returns immediately on MacOS/X 10.5

Marcin Gozdalik gozdal at gmail.com
Fri Jun 11 15:14:08 CEST 2010


2010/6/11 Martin Sustrik <sustrik at 250bpm.com>

> Marcin Gozdalik wrote:
>
> > Avg. us/call Elapsed Name
> > 0.064833 0.648334 clock_gettime(2/CLOCK_REALTIME)
> > 0.009635 0.096351 clock_gettime(2/CLOCK_REALTIME_COARSE)
>
> That's a pretty good performance! I wouldn't hesitate to use it in
> zmq_poll. The impact on non-Linux systems is still unknown though.


And on different processors it varies wildly. You'd need a benchmark during
the build process (as ex. GMP does with different multiplications
procedures) to select the best method.

-- 
Marcin Gozdalik
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