Re: Periodic rant about SCHED_ULE

From: Warner Losh <>
Date: Wed, 22 Mar 2023 22:57:08 UTC
On Wed, Mar 22, 2023 at 1:41 PM George Mitchell <>

> service dnetc start
> I am literally running "make buildworld" with no additional options.
So what are the results for make buildworld -j $(sysctl -n hw.ncpu )?

ULE scales much better, but when there's too little to do it can make poor

ULE is better locked and don't fall over on high core count systems like
BSD does at moderate load.