Re: ULE realtime scheduler advice needed

From: mike tancsa <mike_at_sentex.net>
Date: Wed, 23 Nov 2022 13:13:27 UTC 
On 11/22/2022 5:00 PM, Tomoaki AOKI wrote:
> A long shot, but I am curious if by chance you have hwpstate_intel for
>>> your cpu frequency driver. If so, does setting
>>> dev.hwpstate_intel.0.epp=0 make any difference ?
>>>
>> Yes, I have four of those, set to 50 by default. Let me try.
>>
>> --HPS
> FYI: I habitally run below manually (as root) when I'm on AC powerline.
>
> sysctl -aN | fgrep dev.hwpstate | fgrep epp | while read OID ; do ; \
> sysctl ${OID}=0 ; done

It was a bit of a POLA the first time I encountered this driver going 
from 12 to RELENG_13. Same hardware behaved rather differently as its a 
different power profile default than what I expected and for my use case 
(firewall and router) it was causing dropped packets

     ---Mike