Re: kworker leftovers

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On 9/19/22 14:40, Geoffrey Leach wrote:
Fedora 35, not fully up-to-date

I run a SiliconDust tuner that converts OTA TV to mp2, which I'm then
able to play back using mplayer. An hard-wired ethernet connection is
used between the tuner and the main CPU.

I notice that there are leftover kworker processes. They are mostly idle
and only a few have non-zero time, and then at most only a couple of
seconds.

I don't know why you think they are "leftover". They are kernel processes that are started internally as necessary.

For example,
   87547 ?        I      0:00 [kworker/u16:1-phy0]
   87554 ?        I      0:00 [kworker/7:2-events]
   87555 ?        I      0:00 [kworker/5:2-events]
   87556 ?        I      0:00 [kworker/u16:2-btrfs-endio-write]
   87557 ?        I      0:00 [kworker/u16:3-btrfs-delalloc]
   87558 ?        I      0:00 [kworker/u16:5-btrfs-endio-write]
   87559 ?        I      0:00 [kworker/u16:7-events_unbound]
   87560 ?        I      0:00 [kworker/u16:9-btrfs-freespace-write]
   87561 ?        I      0:00 [kworker/u16:10]
   87626 ?        I<     0:00 [kworker/u17:1]

On my computer right now:
$ ps auxw | grep kworker | wc -l
84

Should I be concerned? In particular,  I was not aware that I had
installed the btrfs filesystem.

btrfs is the default now, but if you aren't using it, I don't know why those would be there. But in general, kworker processes are normal.
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