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Re: [PATCH] softirq: let ksoftirqd do its job

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [PATCH] softirq: let ksoftirqd do its job
Date 2016-09-01 14:00 +0200
Message-ID <scyP0-1lf-29@gated-at.bofh.it> (permalink)
References (5 earlier) <schO9-5mI-1@gated-at.bofh.it> <scjGi-6BP-5@gated-at.bofh.it> <sckCm-7aI-11@gated-at.bofh.it> <sclI6-7NG-31@gated-at.bofh.it> <scy2B-11X-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Sep 01, 2016 at 01:02:31PM +0200, Jesper Dangaard Brouer wrote:
>    PID  S  %CPU     TIME+  COMMAND
>      3  R  50.0  29:02.23  ksoftirqd/0
>  10881  R  10.7   1:01.61  udp_sink
>  10837  R  10.0   1:05.20  udp_sink
>  10852  S  10.0   1:01.78  udp_sink
>  10862  R  10.0   1:05.19  udp_sink
>  10844  S   9.7   1:01.91  udp_sink
> 
> This is strange, why is ksoftirqd/0 getting 50% of the CPU time???

Do you run your udp_sink thingy in a cpu-cgroup?

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Thread

[PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-08-31 19:50 +0200
  Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <jbrouer@redhat.com> - 2016-08-31 21:50 +0200
    Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-08-31 22:50 +0200
      Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <jbrouer@redhat.com> - 2016-09-01 00:00 +0200
        Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 00:30 +0200
          Re: [PATCH] softirq: let ksoftirqd do its job Rick Jones <rick.jones2@hpe.com> - 2016-09-01 00:50 +0200
            Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 01:20 +0200
              Re: [PATCH] softirq: let ksoftirqd do its job Rick Jones <rick.jones2@hpe.com> - 2016-09-01 01:40 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-01 12:40 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 15:10 +0200
        Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-01 13:10 +0200
          Re: [PATCH] softirq: let ksoftirqd do its job Hannes Frederic Sowa <hannes@redhat.com> - 2016-09-01 13:20 +0200
          Re: [PATCH] softirq: let ksoftirqd do its job Peter Zijlstra <peterz@infradead.org> - 2016-09-01 14:00 +0200
            Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-01 14:40 +0200
              Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-01 14:40 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Peter Zijlstra <peterz@infradead.org> - 2016-09-01 14:50 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-01 15:40 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Peter Zijlstra <peterz@infradead.org> - 2016-09-01 17:30 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Jesper Dangaard Brouer <brouer@redhat.com> - 2016-09-02 10:40 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 15:10 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Hannes Frederic Sowa <hannes@redhat.com> - 2016-09-01 15:10 +0200
                Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 15:30 +0200
      Re: [PATCH] softirq: let ksoftirqd do its job Hannes Frederic Sowa <hannes@redhat.com> - 2016-09-01 14:10 +0200
        Re: [PATCH] softirq: let ksoftirqd do its job Eric Dumazet <eric.dumazet@gmail.com> - 2016-09-01 15:00 +0200
  Re: [PATCH] softirq: let ksoftirqd do its job Hannes Frederic Sowa <hannes@redhat.com> - 2016-09-01 14:10 +0200
  Re: [PATCH] softirq: let ksoftirqd do its job David Miller <davem@davemloft.net> - 2016-09-02 08:40 +0200

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