max thread per process in linux

Question

I wrote a simple program to calculate the maximum number of threads that a process can have in linux (Centos 5). here is the code:

int main()
{
    pthread_t         


        

Answer 1

Your system limits may not be allowing you to map the stacks of all the threads you require. Look at /proc/sys/vm/max_map_count, and see this answer. I'm not 100% sure this is your problem, because most people run into problems at much larger thread counts.