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SubjectRe: 2.6.28-rc8 big regression in VM
On Wed, Dec 17, 2008 at 08:27:26PM +0800, Wu Fengguang wrote:
> It looks like most of cached pages were successfully freed:
>
> 247788 => 69856 pages
>
> To get more concrete numbers, could you send more info by running the
> following commands?
>
> cp /proc/meminfo meminfo-1
> cp /proc/vmstat vmstat-1
> sync
> echo 3 > /proc/sys/vm/drop_caches
> cp /proc/meminfo meminfo-2
> cp /proc/vmstat vmstat-2

attached.

--
Lukáš Hejtmánek
MemTotal: 2016688 kB
MemFree: 22680 kB
Buffers: 238592 kB
Cached: 1087428 kB
SwapCached: 0 kB
Active: 1016536 kB
Inactive: 798812 kB
Active(anon): 412044 kB
Inactive(anon): 150708 kB
Active(file): 604492 kB
Inactive(file): 648104 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1542232 kB
SwapFree: 1542232 kB
Dirty: 108 kB
Writeback: 0 kB
AnonPages: 489448 kB
Mapped: 73380 kB
Slab: 114192 kB
SReclaimable: 97304 kB
SUnreclaim: 16888 kB
PageTables: 11304 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2550576 kB
Committed_AS: 818488 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 332160 kB
VmallocChunk: 34359375355 kB
DirectMap4k: 49856 kB
DirectMap2M: 2004992 kB
MemTotal: 2016688 kB
MemFree: 1306652 kB
Buffers: 360 kB
Cached: 129516 kB
SwapCached: 0 kB
Active: 428240 kB
Inactive: 190976 kB
Active(anon): 411084 kB
Inactive(anon): 150708 kB
Active(file): 17156 kB
Inactive(file): 40268 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1542232 kB
SwapFree: 1542232 kB
Dirty: 48 kB
Writeback: 0 kB
AnonPages: 489452 kB
Mapped: 73384 kB
Slab: 26188 kB
SReclaimable: 9576 kB
SUnreclaim: 16612 kB
PageTables: 11368 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2550576 kB
Committed_AS: 818488 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 332160 kB
VmallocChunk: 34359375355 kB
DirectMap4k: 49856 kB
DirectMap2M: 2004992 kB
nr_free_pages 5641
nr_inactive_anon 37677
nr_active_anon 103027
nr_inactive_file 162028
nr_active_file 151124
nr_unevictable 0
nr_mlock 0
nr_anon_pages 122347
nr_mapped 18345
nr_file_pages 331510
nr_dirty 28
nr_writeback 0
nr_slab_reclaimable 24326
nr_slab_unreclaimable 4222
nr_page_table_pages 2842
nr_unstable 0
nr_bounce 0
nr_vmscan_write 40
nr_writeback_temp 0
pgpgin 5916295
pgpgout 1320556
pswpin 0
pswpout 0
pgalloc_dma 22382
pgalloc_dma32 12834037
pgalloc_normal 0
pgalloc_movable 0
pgfree 12862318
pgactivate 347671
pgdeactivate 164209
pgfault 14972192
pgmajfault 30587
pgrefill_dma 1054
pgrefill_dma32 163155
pgrefill_normal 0
pgrefill_movable 0
pgsteal_dma 32
pgsteal_dma32 885851
pgsteal_normal 0
pgsteal_movable 0
pgscan_kswapd_dma 32
pgscan_kswapd_dma32 905956
pgscan_kswapd_normal 0
pgscan_kswapd_movable 0
pgscan_direct_dma 0
pgscan_direct_dma32 3104
pgscan_direct_normal 0
pgscan_direct_movable 0
pginodesteal 0
slabs_scanned 126976
kswapd_steal 885060
kswapd_inodesteal 10067
pageoutrun 12199
allocstall 11
pgrotated 3
unevictable_pgs_culled 21
unevictable_pgs_scanned 0
unevictable_pgs_rescued 22
unevictable_pgs_mlocked 22
unevictable_pgs_munlocked 22
unevictable_pgs_cleared 0
unevictable_pgs_stranded 0
unevictable_pgs_mlockfreed 0
nr_free_pages 326668
nr_inactive_anon 37677
nr_active_anon 102771
nr_inactive_file 10041
nr_active_file 4345
nr_unevictable 0
nr_mlock 0
nr_anon_pages 122363
nr_mapped 18346
nr_file_pages 32505
nr_dirty 20
nr_writeback 0
nr_slab_reclaimable 2392
nr_slab_unreclaimable 4153
nr_page_table_pages 2842
nr_unstable 0
nr_bounce 0
nr_vmscan_write 40
nr_writeback_temp 0
pgpgin 5916963
pgpgout 1320888
pswpin 0
pswpout 0
pgalloc_dma 22397
pgalloc_dma32 12843648
pgalloc_normal 0
pgalloc_movable 0
pgfree 13192960
pgactivate 347736
pgdeactivate 164209
pgfault 14973258
pgmajfault 30595
pgrefill_dma 1054
pgrefill_dma32 163155
pgrefill_normal 0
pgrefill_movable 0
pgsteal_dma 32
pgsteal_dma32 885851
pgsteal_normal 0
pgsteal_movable 0
pgscan_kswapd_dma 32
pgscan_kswapd_dma32 905956
pgscan_kswapd_normal 0
pgscan_kswapd_movable 0
pgscan_direct_dma 0
pgscan_direct_dma32 3104
pgscan_direct_normal 0
pgscan_direct_movable 0
pginodesteal 0
slabs_scanned 374272
kswapd_steal 885060
kswapd_inodesteal 10067
pageoutrun 12199
allocstall 11
pgrotated 3
unevictable_pgs_culled 21
unevictable_pgs_scanned 0
unevictable_pgs_rescued 22
unevictable_pgs_mlocked 22
unevictable_pgs_munlocked 22
unevictable_pgs_cleared 0
unevictable_pgs_stranded 0
unevictable_pgs_mlockfreed 0
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