Technical Linux questions

[praveen.ray at crcnet1.com (Praveen Ray)]

> > 1] What is the default and theoretical maximum number of processes
> > that you can run at once?
>
> default is limited to 32K by the pid space.. but the pid allocator
> breaks down to be useless well before then. using a bigger pid space,
> a new pid allocator, and the new 2.5 threading code people have run
> 100,000 simultaneous threads which is probably a reasonable
> approximation.

Probably a stupid question but what's PID space got to do with threads? Each 
thread doesn't get it's own PID, does it?