On Wed, 21 Apr 1999 08:47:12 -0400 (EDT), System Administrator
<admin@intergrafix.net> said:
> [admin@cygnus admin]$ ./fork
> ...
> Forks = 37
> [admin@cygnus admin]$ ps aux | wc -l
> 472
472 + 37 == 509. Except the "ps aux | wc" counts as two processes, the
./fork is only one, so you only had 508 during the first test.
MIN_TASKS_LEFT_FOR_ROOT defaults to 4, and the NR_TASKS upper limit
defaults to 512.
508 + 4 = 512.
tasks_I_had_running + tasks_left_for_root = max_nr_tasks.
Everything adds up: this is expected behaviour if you don't increase
NR_TASKS. You can increase NR_TASKS in include/linux/tasks.h (but not
too much: I think you hit LDT limits above about 4090, though Ingo has a
patch to remove that limit).
--Stephen
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