About a year ago the following commit greatly simplified softirqs:
commit 6f6ba7715a91877cf5fd2b357db3799baa331d9b
Author: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Date: Wed May 29 18:47:32 2019 +0200
softirq: rework
It also removed ktimersoftd, without comment as far as I can see. Is
it obvious that performance improvements due to lockless
synchronization render useless the earlier split of ktimersoftd from
ksoftirqd? Is it now less likely that a large number of other
softirqs that are run immediately when hard IRQs terminate will use up
ksoftirqd's time slice and prevent the timer softirqs from getting a
chance to run?
Thanks,
Alison Chaiken
achaiken@xxxxxxxxxxx
Aurora Innovation
