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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