Re: Maximum number of processes in Linux

From: linux-os (Dick Johnson)
Date: Tue Aug 15 2006 - 14:19:37 EST

On Tue, 15 Aug 2006, Irfan Habib wrote:

> Hi,
> What is the maximum number of process which can run simultaneously in
> linux? I need to create an application which requires 40,000 threads.
> I was testing with far fewer numbers than that, I was getting
> exceptions in pthread_create
> Regards
> Irfan

#include <stdio.h>
int main(){
unsigned long i;
while(fork() != -1)
printf("%u\n", i);
return 0;
$ gcc -o xxx xxx.c
$ ./xxx

1251392833 <<---- At least this number
$ killall xxx

BYW 40,000 threads? 40,000 tasks all sharing the same address space?
Hopefully this is just a training exercise to see if it's possible.

Dick Johnson
Penguin : Linux version on an i686 machine (5592.62 BogoMips).
New book:

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