[PATCH v2] stdlib: Tuned down tst-arc4random-thread internal parameters

[Szabolcs Nagy]

The 07/27/2022 10:10, Adhemerval Zanella via Libc-alpha wrote:
> +  /* Do not run more threads than the maximum of online CPUs.  */
> +  long int cpus = sysconf (_SC_NPROCESSORS_ONLN);
> +  if (cpus != -1)
> +    /* Limit the number to not overload the system.  */
> +    outer_threads = (cpus / 2) / inner_threads ?: 1;

on my glibc test system

$ getconf _NPROCESSORS_ONLN
160
$ nproc
16
$ taskset -c 0 getconf _NPROCESSORS_ONLN
160
$ taskset -c 0 nproc
1

this is in a cgroup with a fixed cpuset 0-15.

sched_getaffinity might be better for this.