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

Steven McCoy steven.mccoy at miru.hk
Fri Jun 11 09:51:53 CEST 2010

On 11 June 2010 15:46, Martin Sustrik <sustrik at 250bpm.com> wrote:

> Steven,
> >  With Nehalem you should be using gettimeofday() as it's now using
> > rdtscp which apparently solves world hunger according the LKML.  On
> > SPARC, RS6000, PA-RISC gettimeofday() is already light so the only issue
> > would appear to be older x86 platforms and possibly the embedded range
> > which performance is kind of moot anyway.
> Any benchmarks you are aware of?
Here's the article,


 <http://lwn.net/Articles/388188/>They talk about masking out RDTSC out of
user space which would mean you can only use gettimeofday(), etc.

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