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SubjectRe: 2.2.x process limits (NR_TASKS)?
Gregory Ade wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> We're running into what appears to be a 256-process-per-user limit on one
> of our webservers, due to the number of processes running as a specific
> user for our application. I'd like to increase the process limit, and
> *THINK* that to do so i need to increase NR_TASKS in
> /usr/src/linux/include/linux/tasks.h.
>
> Is this correct? What other things do I need to watch out for when making
> this modification?
>
> Also, where can this limit be changed in 2.4.x?
>
> Thanks ahead of time.
>

2.2.x has a hard limit of 512 tasks on the x86 because it uses hardware
task switching. 2.4.x allows an unlimited number of tasks, and is
configurable via /proc/sys/kernel/threads-max and ulimit.

--

Brian Gerst
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