Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1610812

Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28

From Frederic Weisbecker <fweisbec@gmail.com>
Newsgroups linux.kernel
Subject Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28
Date 2017-03-28 15:10 +0200
Message-ID <tpZ2P-83l-57@gated-at.bofh.it> (permalink)
References <tpUwa-4KI-21@gated-at.bofh.it> <tpWHD-6e9-3@gated-at.bofh.it> <tpYq6-7si-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Tue, Mar 28, 2017 at 02:26:42PM +0200, Peter Zijlstra wrote:
> On Tue, Mar 28, 2017 at 06:34:52PM +0800, Wanpeng Li wrote:
> > 
> > sched_clock_cpu(cpu) should be converted from cputime to ns.
> 
> Uhm, no. sched_clock_cpu() returns u64 in ns.

Yes, and most of the cputime_t have been converted to u64 so there
should be no such conversion issue between u64 and cputime_t anymore.

Perhaps my commit has another side effect on softirq time accounting,
I'll see if I can reproduce.

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Bisected softirq accounting issue in v4.11-rc1~170^2~28 Jesper Dangaard Brouer <brouer@redhat.com> - 2017-03-28 10:20 +0200
  Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Wanpeng Li <kernellwp@gmail.com> - 2017-03-28 12:40 +0200
    Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Jesper Dangaard Brouer <brouer@redhat.com> - 2017-03-28 14:00 +0200
    Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Peter Zijlstra <peterz@infradead.org> - 2017-03-28 14:30 +0200
      Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Frederic Weisbecker <fweisbec@gmail.com> - 2017-03-28 15:10 +0200
        Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Jesper Dangaard Brouer <brouer@redhat.com> - 2017-03-28 15:30 +0200
  Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Frederic Weisbecker <fweisbec@gmail.com> - 2017-03-28 16:40 +0200
    Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Jesper Dangaard Brouer <brouer@redhat.com> - 2017-03-28 17:30 +0200
      Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Frederic Weisbecker <fweisbec@gmail.com> - 2017-03-28 23:20 +0200
        Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Jesper Dangaard Brouer <brouer@redhat.com> - 2017-03-29 11:40 +0200
          Re: Bisected softirq accounting issue in v4.11-rc1~170^2~28 Frederic Weisbecker <fweisbec@gmail.com> - 2017-03-29 15:20 +0200

csiph-web