From: Rik van Riel <riel@redhat•com>
To: Eric Dumazet <eric.dumazet@gmail•com>
Cc: Eric Dumazet <edumazet@google•com>,
Hannes Frederic Sowa <hannes@stressinduktion•org>,
Paolo Abeni <pabeni@redhat•com>, netdev <netdev@vger•kernel.org>,
"David S. Miller" <davem@davemloft•net>,
Jiri Pirko <jiri@mellanox•com>,
Daniel Borkmann <daniel@iogearbox•net>,
Alexei Starovoitov <ast@plumgrid•com>,
Alexander Duyck <aduyck@mirantis•com>,
Tom Herbert <tom@herbertland•com>,
Peter Zijlstra <peterz@infradead•org>,
Ingo Molnar <mingo@kernel•org>,
LKML <linux-kernel@vger•kernel.org>
Subject: Re: [RFC PATCH 0/2] net: threadable napi poll loop
Date: Tue, 10 May 2016 18:02:33 -0400 [thread overview]
Message-ID: <1462917753.16365.15.camel@redhat.com> (raw)
In-Reply-To: <1462917217.23934.101.camel@edumazet-glaptop3.roam.corp.google.com>
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On Tue, 2016-05-10 at 14:53 -0700, Eric Dumazet wrote:
> On Tue, 2016-05-10 at 17:35 -0400, Rik van Riel wrote:
>
> >
> > You might need another one of these in invoke_softirq()
> >
> Excellent.
>
> I gave it a quick try (without your suggestion), and host seems to
> survive a stress test.
>
> Of course we do have to fix these problems :
>
> [ 147.781629] NOHZ: local_softirq_pending 48
> [ 147.785546] NOHZ: local_softirq_pending 48
> [ 147.788344] NOHZ: local_softirq_pending 48
> [ 147.788992] NOHZ: local_softirq_pending 48
> [ 147.790943] NOHZ: local_softirq_pending 48
> [ 147.791232] NOHZ: local_softirq_pending 24a
> [ 147.791258] NOHZ: local_softirq_pending 48
> [ 147.791366] NOHZ: local_softirq_pending 48
> [ 147.792118] NOHZ: local_softirq_pending 48
> [ 147.793428] NOHZ: local_softirq_pending 48
As long as ksoftirqd is running, that should not be
an actual problem, just a false positive.
--
All Rights Reversed.
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next prev parent reply other threads:[~2016-05-10 22:02 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 14:11 [RFC PATCH 0/2] net: threadable napi poll loop Paolo Abeni
2016-05-10 14:11 ` [RFC PATCH 1/2] net: implement threaded-able napi poll loop support Paolo Abeni
2016-05-10 14:11 ` [RFC PATCH 2/2] net: add sysfs attribute to control napi threaded mode Paolo Abeni
2016-05-10 14:29 ` [RFC PATCH 0/2] net: threadable napi poll loop Eric Dumazet
2016-05-10 15:51 ` David Miller
2016-05-10 16:03 ` Paolo Abeni
2016-05-10 16:08 ` Eric Dumazet
2016-05-10 20:22 ` Paolo Abeni
2016-05-10 20:45 ` David Miller
2016-05-10 20:50 ` Rik van Riel
2016-05-10 20:52 ` David Miller
2016-05-10 21:01 ` Rik van Riel
2016-05-10 20:46 ` Hannes Frederic Sowa
2016-05-10 21:09 ` Eric Dumazet
2016-05-10 21:31 ` Eric Dumazet
2016-05-10 21:35 ` Rik van Riel
2016-05-10 21:53 ` Eric Dumazet
2016-05-10 22:02 ` Eric Dumazet
2016-05-10 22:44 ` Eric Dumazet
2016-05-10 22:02 ` Rik van Riel [this message]
2016-05-11 17:55 ` Eric Dumazet
2016-05-10 22:32 ` Hannes Frederic Sowa
2016-05-10 22:51 ` Eric Dumazet
2016-05-11 6:55 ` Peter Zijlstra
2016-05-11 13:13 ` Hannes Frederic Sowa
2016-05-11 14:40 ` Eric Dumazet
2016-05-11 15:01 ` Rik van Riel
2016-05-11 15:50 ` Eric Dumazet
2016-05-11 21:56 ` Eric Dumazet
2016-05-12 20:07 ` Paolo Abeni
2016-05-12 20:49 ` Eric Dumazet
2016-05-12 20:58 ` Paolo Abeni
2016-05-12 21:05 ` Eric Dumazet
2016-05-13 16:50 ` Paolo Abeni
2016-05-13 17:03 ` Eric Dumazet
2016-05-13 17:19 ` Paolo Abeni
2016-05-13 17:36 ` Eric Dumazet
2016-05-16 13:10 ` Paolo Abeni
2016-05-16 13:38 ` Eric Dumazet
2016-05-11 9:48 ` Paolo Abeni
2016-05-11 13:08 ` Eric Dumazet
2016-05-11 13:39 ` Hannes Frederic Sowa
2016-05-11 13:47 ` Hannes Frederic Sowa
2016-05-11 14:38 ` Paolo Abeni
2016-05-11 14:45 ` Eric Dumazet
2016-05-11 22:47 ` Hannes Frederic Sowa
2016-05-10 15:57 ` Thomas Gleixner
2016-05-10 20:41 ` Paolo Abeni
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