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Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re: [PATCH 0/3] OOM detection rework v4)

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On Tue 08-03-16 18:58:24, Sergey Senozhatsky wrote:
> On (03/07/16 17:08), Michal Hocko wrote:
> > On Mon 29-02-16 22:02:13, Michal Hocko wrote:
> > > Andrew,
> > > could you queue this one as well, please? This is more a band aid than a
> > > real solution which I will be working on as soon as I am able to
> > > reproduce the issue but the patch should help to some degree at least.
> > 
> > Joonsoo wasn't very happy about this approach so let me try a different
> > way. What do you think about the following? Hugh, Sergey does it help
> > for your load? I have tested it with the Hugh's load and there was no
> > major difference from the previous testing so at least nothing has blown
> > up as I am not able to reproduce the issue here.
> > 
> > Other changes in the compaction are still needed but I would like to not
> > depend on them right now.
> 
> works fine for me.
> 
> $  cat /proc/vmstat | egrep -e "compact|swap"
> pgsteal_kswapd_dma 7
> pgsteal_kswapd_dma32 6457075
> pgsteal_kswapd_normal 1462767
> pgsteal_kswapd_movable 0
> pgscan_kswapd_dma 18
> pgscan_kswapd_dma32 6544126
> pgscan_kswapd_normal 1495604
> pgscan_kswapd_movable 0
> kswapd_inodesteal 29
> kswapd_low_wmark_hit_quickly 1168
> kswapd_high_wmark_hit_quickly 1627
> compact_migrate_scanned 5762793
> compact_free_scanned 54090239
> compact_isolated 1303895
> compact_stall 1542
> compact_fail 1117
> compact_success 425
> compact_kcompatd_wake 0
> 
> no OOM-kills after 6 rounds of tests.
> 
> Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>

Thanks for retesting!
-- 
Michal Hocko
SUSE Labs

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[PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-07 17:10 +0100
  Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2016-03-08 04:50 +0100
    Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-08 10:10 +0100
      Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2016-03-08 10:30 +0100
  Re: [PATCH] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 10:30 +0100
    Re: [PATCH] mm, oom: protect !costly allocations some more Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2016-03-08 10:40 +0100
    Re: [PATCH] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-08 10:50 +0100
      Re: [PATCH] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 11:00 +0100
        Re: [PATCH] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-08 11:20 +0100
          Re: [PATCH] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 12:20 +0100
            Re: [PATCH] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-08 13:30 +0100
              Re: [PATCH] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 13:40 +0100
  Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2016-03-08 11:00 +0100
    Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-08 15:00 +0100
  Re: [PATCH] mm, oom: protect !costly allocations some more (was:  Re: [PATCH 0/3] OOM detection rework v4) Hugh Dickins <hughd@google.com> - 2016-03-08 11:40 +0100
  [PATCH 1/3] mm, compaction: change COMPACT_ constants into enum Michal Hocko <mhocko@kernel.org> - 2016-03-08 14:50 +0100
    Re: [PATCH 1/3] mm, compaction: change COMPACT_ constants into enum Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 15:20 +0100
    Re: [PATCH 1/3] mm, compaction: change COMPACT_ constants into enum "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-03-09 05:00 +0100
  [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-08 14:50 +0100
    Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 15:40 +0100
      Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-08 15:50 +0100
        Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 16:10 +0100
    Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-09 12:20 +0100
      Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Vlastimil Babka <vbabka@suse.cz> - 2016-03-09 15:10 +0100
      Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Hugh Dickins <hughd@google.com> - 2016-03-11 13:20 +0100
        Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-11 14:10 +0100
          Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Hugh Dickins <hughd@google.com> - 2016-03-11 20:10 +0100
            Re: [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko <mhocko@kernel.org> - 2016-03-14 17:30 +0100
  [PATCH 0/2] oom rework: high order enahncements Michal Hocko <mhocko@kernel.org> - 2016-03-08 14:50 +0100
    [PATCH 2/3] mm, compaction: cover all compaction mode in compact_zone Michal Hocko <mhocko@kernel.org> - 2016-03-08 14:50 +0100
      Re: [PATCH 2/3] mm, compaction: cover all compaction mode in  compact_zone Vlastimil Babka <vbabka@suse.cz> - 2016-03-08 15:30 +0100
      Re: [PATCH 2/3] mm, compaction: cover all compaction mode in compact_zone "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-03-09 05:00 +0100
  Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Joonsoo Kim <js1304@gmail.com> - 2016-03-08 16:20 +0100
    Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-08 17:10 +0100
      Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Joonsoo Kim <js1304@gmail.com> - 2016-03-08 18:10 +0100
        Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-09 11:50 +0100
          Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Joonsoo Kim <js1304@gmail.com> - 2016-03-11 16:00 +0100
            Re: [PATCH] mm, oom: protect !costly allocations some more (was: Re:  [PATCH 0/3] OOM detection rework v4) Michal Hocko <mhocko@kernel.org> - 2016-03-11 16:30 +0100

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