Re: max number of threads on a system

[Peter Wächtler]

Bill Davidsen wrote:

> On Fri, 22 Mar 2002, James Bourne wrote:
> 
> 
>>One thing to note here, using pthreads there is a limit of 1024
>>threads per process.  There are patches to glibc to increase this
>>to a larger number (4096 or 8192).
>>
> 
>   Haven't checked to see the limit in NGPT, but I haven't hit it ;-)
> 

There is another limit creeping in: pthread mmap()s 2 MB
of stack for each thread. So you run out of address space
on 32 bit systems with threads > 1024 (and smaller)