Re: [RFC PATCH 0/4] softirq: Per vector threading v3

Mauro Carvalho Chehab
2018-01-22T19:59:12Z

Em Fri, 19 Jan 2018 16:46:10 +0100
Frederic Weisbecker <frederic@kernel.org> escreveu:

> As per Linus suggestion, this take doesn't limit the number of occurences
> per jiffy anymore but instead defers a vector to workqueues as soon as
> it gets re-enqueued on IRQ tail.
>
> No tunable here, so testing should be easier.
>
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> softirq/thread-v3

Frederic,

FYI, I'm out of town for two weeks. I'll try to setup a test environment
while traveling, but I'm unsure if it will work, as I won't have access to
my DVB-S2 provider from here.

>
> HEAD: 6835e92cbd70ef4a056987d2e1ed383b294429d4
>
> Thanks,
> Frederic
> ---
>
> Frederic Weisbecker (4):
> softirq: Limit vector to a single iteration on IRQ tail
> softirq: Per vector deferment to workqueue
> softirq: Defer to workqueue when rescheduling is needed
> softirq: Replace ksoftirqd with workqueues entirely
>
>
> Documentation/RCU/stallwarn.txt | 4 +-
> include/linux/interrupt.h | 7 +-
> kernel/sched/cputime.c | 12 +--
> kernel/sched/sched.h | 4 +-
> kernel/softirq.c | 223 +++++++++++++++++++++++-----------------
> net/ipv4/tcp_output.c | 5 +-
> 6 files changed, 144 insertions(+), 111 deletions(-)

Cheers,
Mauro