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

[Mauro Carvalho Chehab <mchehab@s-opensource.com>]

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