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From: Sultan Alsawaf <sultan@kerneltoast.com>
To: Shakeel Butt <shakeelb@google.com>
Cc: Mel Gorman <mgorman@suse.de>, Michal Hocko <mhocko@kernel.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux MM <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH] mm: Stop kswapd early when nothing's waiting for it to free pages
Date: Fri, 21 Feb 2020 12:06:05 -0800	[thread overview]
Message-ID: <20200221200605.GA2416@sultan-book.localdomain> (raw)
In-Reply-To: <CALvZod5zJo186v=-QHGRvap67axexp6oL8=qXEjq670F2yAdSA@mail.gmail.com>

On Fri, Feb 21, 2020 at 10:04:38AM -0800, Shakeel Butt wrote:
> Can you also attach the /proc/zoneinfo? Maybe the watermarks are too high.

Here it is (when booted with mem=2G).

Sultan

Node 0, zone      DMA
  per-node stats
      nr_inactive_anon 236
      nr_active_anon 47914
      nr_inactive_file 44716
      nr_active_file 22397
      nr_unevictable 11665
      nr_slab_reclaimable 11217
      nr_slab_unreclaimable 16465
      nr_isolated_anon 0
      nr_isolated_file 0
      workingset_nodes 0
      workingset_refault 0
      workingset_activate 0
      workingset_restore 0
      workingset_nodereclaim 0
      nr_anon_pages 47716
      nr_mapped    34753
      nr_file_pages 79237
      nr_dirty     66
      nr_writeback 0
      nr_writeback_temp 0
      nr_shmem     12120
      nr_shmem_hugepages 0
      nr_shmem_pmdmapped 0
      nr_file_hugepages 0
      nr_file_pmdmapped 0
      nr_anon_transparent_hugepages 0
      nr_unstable  0
      nr_vmscan_write 0
      nr_vmscan_immediate_reclaim 0
      nr_dirtied   3143
      nr_written   3073
      nr_kernel_misc_reclaimable 0
  pages free     3975
        min      173
        low      216
        high     259
        spanned  4095
        present  3998
        managed  3975
        protection: (0, 992, 992, 992, 992)
      nr_free_pages 3975
      nr_zone_inactive_anon 0
      nr_zone_active_anon 0
      nr_zone_inactive_file 0
      nr_zone_active_file 0
      nr_zone_unevictable 0
      nr_zone_write_pending 0
      nr_mlock     0
      nr_page_table_pages 0
      nr_kernel_stack 0
      nr_bounce    0
      nr_zspages   0
      nr_free_cma  0
      numa_hit     0
      numa_miss    0
      numa_foreign 0
      numa_interleave 0
      numa_local   0
      numa_other   0
  pagesets
    cpu: 0
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 1
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 2
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 3
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 4
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 5
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 6
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
    cpu: 7
              count: 0
              high:  0
              batch: 1
  vm stats threshold: 8
  node_unreclaimable:  0
  start_pfn:           1
Node 0, zone    DMA32
  pages free     87925
        min      11090
        low      13862
        high     16634
        spanned  294144
        present  270018
        managed  257874
        protection: (0, 0, 0, 0, 0)
      nr_free_pages 87925
      nr_zone_inactive_anon 236
      nr_zone_active_anon 47914
      nr_zone_inactive_file 44716
      nr_zone_active_file 22397
      nr_zone_unevictable 11665
      nr_zone_write_pending 66
      nr_mlock     16
      nr_page_table_pages 1284
      nr_kernel_stack 5024
      nr_bounce    0
      nr_zspages   0
      nr_free_cma  0
      numa_hit     544686
      numa_miss    0
      numa_foreign 0
      numa_interleave 8149
      numa_local   544686
      numa_other   0
  pagesets
    cpu: 0
              count: 358
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 1
              count: 335
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 2
              count: 308
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 3
              count: 337
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 4
              count: 326
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 5
              count: 315
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 6
              count: 370
              high:  378
              batch: 63
  vm stats threshold: 32
    cpu: 7
              count: 292
              high:  378
              batch: 63
  vm stats threshold: 32
  node_unreclaimable:  0
  start_pfn:           4096
Node 0, zone   Normal
  pages free     0
        min      0
        low      0
        high     0
        spanned  0
        present  0
        managed  0
        protection: (0, 0, 0, 0, 0)
Node 0, zone  Movable
  pages free     0
        min      0
        low      0
        high     0
        spanned  0
        present  0
        managed  0
        protection: (0, 0, 0, 0, 0)
Node 0, zone   Device
  pages free     0
        min      0
        low      0
        high     0
        spanned  0
        present  0
        managed  0
        protection: (0, 0, 0, 0, 0)

  reply	other threads:[~2020-02-21 20:06 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-19 18:25 [PATCH] mm: Stop kswapd early when nothing's waiting for it to free pages Sultan Alsawaf
2020-02-19 19:13 ` Dave Hansen
2020-02-19 19:40   ` Sultan Alsawaf
2020-02-19 20:05     ` Michal Hocko
2020-02-19 20:42       ` Sultan Alsawaf
2020-02-19 21:45         ` Mel Gorman
2020-02-19 22:42           ` Sultan Alsawaf
2020-02-20 10:19             ` Mel Gorman
2020-02-21  4:22               ` Sultan Alsawaf
2020-02-21  8:07                 ` Michal Hocko
     [not found]                   ` <20200221210824.GA3605@sultan-book.localdomain>
2020-02-21 21:24                     ` Dave Hansen
2020-02-25  9:09                     ` Michal Hocko
2020-02-25 17:12                       ` Sultan Alsawaf
2020-02-26  9:05                         ` Michal Hocko
2020-02-25 22:30                       ` Shakeel Butt
2020-02-26  9:08                         ` Michal Hocko
2020-02-26 17:00                           ` Shakeel Butt
2020-02-26 17:41                             ` Michal Hocko
     [not found]                       ` <20200226105137.9088-1-hdanton@sina.com>
2020-02-26 17:04                         ` Shakeel Butt
2020-02-21 18:04                 ` Shakeel Butt
2020-02-21 20:06                   ` Sultan Alsawaf [this message]
2020-02-20  8:29         ` Michal Hocko
2020-02-19 19:26 ` Andrew Morton
2020-02-19 22:45   ` Sultan Alsawaf
2020-02-19 19:35 ` Michal Hocko
2020-02-21  4:30 ` [PATCH v2] " Sultan Alsawaf
     [not found]   ` <20200221182201.GB4462@iweiny-DESK2.sc.intel.com>
2020-02-21 20:00     ` Sultan Alsawaf

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