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Re: [PATCH 4/5] mm, oom_reaper: report success/failure

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On Thu, 4 Feb 2016, Michal Hocko wrote:

> > I think it would be helpful to show anon-rss after reaping, however, so we 
> > can compare to the previous anon-rss that was reported.  And, I agree that 
> > leaving behind a message in the kernel log that reaping has been 
> > successful is worthwhile.  So this line should just show what anon-rss is 
> > after reaping and make it clear that this is not the memory reaped.
> 
> Does
> "oom_reaper: reaped process %d (%s) current memory anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB "
> 
> sound any better?

oom_reaper: reaped process %d (%s), now anon-rss:%lukB

would probably be better until additional support is added to do other 
kinds of reaping other than just primarily heap.  This should help to 
quantify the exact amount of memory that could be reaped (or otherwise 
unmapped) iff oom_reaper has to get involved rather than fluctations that 
have nothing to do with it.

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[PATCH 0/5] oom reaper v5 Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
  [PATCH 2/5] oom reaper: handle mlocked pages Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 2/5] oom reaper: handle mlocked pages David Rientjes <rientjes@google.com> - 2016-02-04 01:00 +0100
  [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 4/5] mm, oom_reaper: report success/failure David Rientjes <rientjes@google.com> - 2016-02-04 00:20 +0100
      Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-04 07:50 +0100
        Re: [PATCH 4/5] mm, oom_reaper: report success/failure David Rientjes <rientjes@google.com> - 2016-02-04 23:40 +0100
          Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-05 10:30 +0100
            Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-06 07:40 +0100
  [PATCH 1/5] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 1/5] mm, oom: introduce oom reaper David Rientjes <rientjes@google.com> - 2016-02-04 00:50 +0100
      Re: [PATCH 1/5] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-02-04 07:50 +0100
    Re: [PATCH 1/5] mm, oom: introduce oom reaper Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 14:30 +0100
  [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 11:50 +0100
      Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-04 16:00 +0100
        Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 07:00 +0100
          Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-06 09:40 +0100
            Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 16:40 +0100
  [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 15:40 +0100
      Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-04 15:50 +0100
        Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 16:10 +0100
          Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-04 17:40 +0100
            Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-05 12:20 +0100
              Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-06 09:40 +0100
                Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 12:30 +0100
        Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-06 07:50 +0100
          Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 15:40 +0100

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