Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker configuration

From	Marcelo Tosatti <mtosatti@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker configuration
Date	2017-05-22 23:20 +0200
Message-ID	<tK2Ua-2m2-37@gated-at.bofh.it> (permalink)
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On Mon, May 22, 2017 at 11:38:02AM -0500, Christoph Lameter wrote:
> On Sat, 20 May 2017, Marcelo Tosatti wrote:
> 
> > > And you can configure the interval of vmstat updates freely.... Set
> > > the vmstat_interval to 60 seconds instead of 2 for a try? Is that rare
> > > enough?
> >
> > Not rare enough. Never is rare enough.
> 
> Ok what about the other stuff that must be going on if you allow OS
> activity like f.e. the tick, scheduler etc etc.

Yes these are also problems... but we're either getting rid of them or
reducing their impact as much as possible.

vmstat_update is one member of the problematic set.

I'll get you the detailed IPI measures, hold on...

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Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-12 14:30 +0200
  Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-12 17:20 +0200
    Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-12 17:50 +0200
      Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-12 18:10 +0200
      Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-12 18:10 +0200
        Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-12 18:30 +0200
          Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-12 19:00 +0200
            Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-15 21:20 +0200
              Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-16 15:40 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-19 16:40 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-19 19:20 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and  vmstat_worker configuration Luiz Capitulino <lcapitulino@redhat.com> - 2017-05-19 20:00 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-22 18:40 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-20 10:30 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Christoph Lameter <cl@linux.com> - 2017-05-22 18:40 +0200
                Re: [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker  configuration Marcelo Tosatti <mtosatti@redhat.com> - 2017-05-22 23:20 +0200

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