Re: Periodic rant about SCHED_ULE

From: Karl Denninger <>
Date: Wed, 22 Mar 2023 17:42:32 UTC
On 3/22/2023 13:37, George Mitchell wrote:
> On 3/22/23 13:10, Rodney W. Grimes wrote:
>> [...]
>> I dont even try ULE any more.  I just used 4BSD, as did,
>> ULE seems to suck when your have interactive use and compute bound on
>> the same  box.  I have seen interactive in the past take seconds to
>> echo a command.  IIRC ULE and zfs in a memory contrained environment
>> dont play nicely togeather either.
>> +1 on the return to 4BSD as the default scheduler
> Thanks for the support and confirming I am not crazy!          -- George
Am I correct that toggling between these without a kernel build (or even 
at runtime) is not possible?  Been a minute since I've cared.... :-)

Karl Denninger
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