Martin Mokrejs wrote:

>>>> Nope, you get that message once to tell you that we throttle RT tasks.
>>>
>>> I think the message could improved to explain this is a warn ONCE message 
>>> and
>>> that there is no "[sched_delayed] sched: RT throttling deactivated" 
>>> counterpart
>>> message to be anticipated.
>>
>> Would something like: 
>>
>>   sched: [ONCE] RT throttle hit -- inspect system configuration.
>>
>> Be a better message?
> 
> Not really. I would prefer something like:
> 
> [sched_delayed] sched: stopped running $cmd on CPU%d in favor of RR/FIFO task 
> $psname

Actually, to retain the message text appearing in current kernel so that people 
can find
by e.g. Google newer syntax and possibly this thread maybe much better would be:

[sched_delayed] sched: RT throttling limit $d hit. Stopped running $cmd on 
CPU%d in favor of RR/FIFO task $psname. Will not issue any more these messages 
until reboot.

I know, looong line.


I just realized this is about some threshold limit value, and you mean that 
iwlwifi
contributed the highest increase compared to the other kernel threads on my 
system.

sysctl -q -a |  grep -i limit

does not show what is the actual value. Am probably looking into a wrong place. 
;-)

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