Hi Tobias,

Thanks for the info. I thought Pike would run all threads simultaneously
when number of threads does not exceed number of available processors and
otherwise using time sharing like other languages. I am still learning Pike
and hence not familiar with I/O operations in Pike so maybe later will find
out when to get benefit of concurrency when Pike is used.

Regards,

Danesh




On Fri, May 2, 2014 at 5:55 PM, Tobias S. Josefowitz <[email protected]
> wrote:

> Hi Danesh!
>
> On Fri, May 2, 2014 at 5:34 PM, Danesh Daroui <[email protected]>
> wrote:
> > Hi,
> >
> > Thanks for your answer. I guess threads is something that I was looking
> for.
> > By concurrency I meant being able
> > to spawn multiple threads which will logically run in parallel. Moreover
> > having the possibility to define mutex
> > and semaphores which are apparently done in Pike (mutex is at least done)
> > and also barrier and join threads, etc.
>
> Pike indeed has support for that, as you discovered. However, beware
> of the global interpreter lock. Pike code will never really run
> concurrently (i.e. more than one thread executing Pike code at the
> same time on more than one CPU/core). All concurrency you can get is
> on blocking I/O operations and possibly some heavier computations
> offered by the Pike "standard library".
>
> Tobi
>

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