Re: [LAU] reducing xruns (System configuration)

On 18.07.2018 22:38, Ralf Mardorf wrote:
> On Wed, 18 Jul 2018 21:15:21 +0200, Max wrote:
>> On 18.07.2018 19:58, Ralf Mardorf wrote:
>>> /etc/init.d/rtirq status
>>
>> PID CLS RTPRIO NI PRI %CPU STAT COMMAND
>> 441 FF 50 - 90 0.0 S irq/29-mei_me
>> 527 FF 50 - 90 0.0 S irq/31-iwlwifi
>> 8 TS - 0 19 0.0 S ksoftirqd/0
>> 18 TS - 0 19 0.0 S ksoftirqd/1
>> 24 TS - 0 19 0.0 S ksoftirqd/2
>> 30 TS - 0 19 0.0 S ksoftirqd/3
>> 36 TS - 0 19 0.0 S ksoftirqd/4
>> 42 TS - 0 19 0.0 S ksoftirqd/5
>> 48 TS - 0 19 0.0 S ksoftirqd/6
>> 54 TS - 0 19 0.0 S ksoftirqd/7
>>
>>> grep RTIRQ_NAME_LIST /etc/default/rtirq
>>
>> # RTIRQ_NAME_LIST="rtc snd usb i8042" # old
>> RTIRQ_NAME_LIST="snd usb i8042"
>
> That's most likely the culprit or at least the major culprit. Nothing
> has got rt priority.
>
> Are you sure that you are running the lowlatency kernel? If not, than
> you need the boot option 'threadirqs'.
>
> What's the output of
>
> uname -rm

4.17.8-041708-lowlatency x86_64

> Before you boot the lowlatency kernel or a generic kernel with
> boot option 'threadirqs', make USB the head and remove the keyboard from
> this list, IOW change it to RTIRQ_NAME_LIST="usb snd"
could you elaborate how?
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Received on Thu Jul 19 16:15:01 2018