On 16/07/2009 06:53, Kazu Yamamoto (山本和彦) wrote:
Hello,
Reduce this to 1024, otherwise the runtime will eventually find itself
dealing with file descriptors beyond the select() limit mentioned
above.
Someone with more knowledge of the Haskell runtime will have to advise
as to possible ways around it if you really need more than 1024 file
descriptors.
There's no easy workaround. We could have the IO library switch to
using blocking read() calls for the out-of-range FDs to avoid the
error from the IO manager, but that is likely to lead to a different
problem: too many OS threads.
Thank you for reply.
I changed forkIO to forkOS. But I received the following error.
ERRORCannot create OS thread.
I don't think forkOS is going to help you here. The IO library is still
using select(), all you're doing is making more OS threads.
We could do blocking read() for a bound thread. That would make some
sense, but we don't do it at the moment, and it does add an extra test
to the code.
I want to decrease the stack size of threads to increase the number of
threads to be created. How can I do this?
That's an OS issue, I'm not sure.
Cheers,
Simon
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