maximum number of threads

Laurent Pointal laurent.pointal at limsi.fr
Wed Jan 10 14:49:33 CET 2007


Paul Sijben a écrit :
> Gabriel Genellina wrote:
>> Simply you can't, as you can't have 10000 open files at once. Computer
>> resources are not infinite.
> 
> sure but *how* fast they run out is the issue here
> 
>> Do you really need so many threads? 
> 
> I might be able to do with a few less but I still need many.
> 
> I have done a quick test.
> 
> on WinXP I can create 1030 threads
> on Fedora Core 6 I can only create 301 (both python2.4 and 2.5)
> 
> now the 301 is rather low I'd say.

This is a system configurable limit (up to a maximum).

See ulimit man pages.

test

	ulimit -a

to see what are the current limits, and try with

	ulimit -u 2000

to modify the maximum number of user process (AFAIK each thread use a
process entry on Linux)

> 
> Paul
> 



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