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Date: Fri, 21 Feb 2020 12:06:05 -0800
From: Sultan Alsawaf <sultan@...neltoast.com>
To: Shakeel Butt <shakeelb@...gle.com>
Cc: Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
Dave Hansen <dave.hansen@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>,
Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH] mm: Stop kswapd early when nothing's waiting for it to
free pages
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)
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