On 26.12.2017 18:37, Andriy Gapon wrote: >>> Is idprio(1) broken in stable/11? >>> >>> As root, start one bzip2 instance with idprio and one additional bzip2 >>> intance per CPU core: >>> >>> # idprio 5 bzip2 -9 </dev/zero >/dev/null & >>> # n=$(sysctl -n kern.smp.cpus) >>> # i=1; while [ $i -le $n ]; do bzip2 -9 </dev/zero >/dev/null & >>> i=$(($i+1)); done >>> # top >>> >>> For dual core system, I see that idprio'd bzip2 takes all cycles of first >>> core >>> and two "normal" bzip2's share cycles of second core each taking ~50% of >>> CPU time. >>> >>> It is expected that idprio'd bzip2 get no CPU time at all and each of >>> "normal" bzip2's >>> get ~100% of single CPU core for such setup. >> >> This works as expected for stable/10. > > Seems to work as expected on head as well.
I have a report that head r323607 has the problem and head r326729 has not. I can't check it myself as I have do not run head yet. _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
