Messages in this thread | | | From | Wei Xu <> | Date | Fri, 9 Apr 2021 20:40:29 -0700 | Subject | Re: [PATCH 06/10] mm/vmscan: add page demotion counter |
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On Thu, Apr 1, 2021 at 11:35 AM Dave Hansen <dave.hansen@linux.intel.com> wrote: > > > From: Yang Shi <yang.shi@linux.alibaba.com> > > Account the number of demoted pages into reclaim_state->nr_demoted. > > Add pgdemote_kswapd and pgdemote_direct VM counters showed in > /proc/vmstat. > > [ daveh: > - __count_vm_events() a bit, and made them look at the THP > size directly rather than getting data from migrate_pages() > ] > > Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> > Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> > Reviewed-by: Yang Shi <shy828301@gmail.com> > Cc: Wei Xu <weixugc@google.com> > Cc: David Rientjes <rientjes@google.com> > Cc: Huang Ying <ying.huang@intel.com> > Cc: Dan Williams <dan.j.williams@intel.com> > Cc: David Hildenbrand <david@redhat.com> > Cc: osalvador <osalvador@suse.de>
These counters can be more useful if they are per-node.
Reviewed-by: Wei Xu <weixugc@google.com>
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