unit.git/auto/sched, branch 1.34.1-1 Universal Web Application Server auto: Add a check for Linux's sched_getaffinity(2) 2024-08-19T22:29:40+00:00 Andrew Clayton a.clayton@nginx.com 2024-08-11T15:46:05+00:00 f38201c2a144fb28978eabb32a3a080874f92775 This will help to better determine the number of router threads to create in certain situations. Unlike sysconf(_SC_NPROCESSORS_ONLN) this takes into account per-process cpu allowed masks as set by sched_setaffinity(2)/cpusets etc. So while a system may have 64 on-line cpu's, Unit itself may be limited to using just four of them in which case we should create four extra router threads, not sixty-four! Signed-off-by: Andrew Clayton <a.clayton@nginx.com> 
This will help to better determine the number of router threads to
create in certain situations.

Unlike sysconf(_SC_NPROCESSORS_ONLN) this takes into account per-process
cpu allowed masks as set by sched_setaffinity(2)/cpusets etc.

So while a system may have 64 on-line cpu's, Unit itself may be limited
to using just four of them in which case we should create four extra
router threads, not sixty-four!

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>