From: Chris Webb <chris@arachsys.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
Minchan Kim <minchan.kim@gmail.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Pekka Enberg <penberg@cs.helsinki.fi>,
Andi Kleen <andi@firstfloor.org>,
Christoph Lameter <cl@linux-foundation.org>
Subject: Re: Over-eager swapping
Date: Wed, 18 Aug 2010 17:31:32 +0100 [thread overview]
Message-ID: <20100818163132.GC2370@arachsys.com> (raw)
In-Reply-To: <20100818161346.GA12932@localhost>
Wu Fengguang <fengguang.wu@intel.com> writes:
> Chris, can you post /proc/vmstat on the problem machines?
Here's /proc/vmstat from one of the bad machines with swap taken out:
# cat /proc/vmstat
nr_free_pages 115572
nr_inactive_anon 562140
nr_active_anon 5015609
nr_inactive_file 997097
nr_active_file 996989
nr_unevictable 1368
nr_mlock 1368
nr_anon_pages 5862299
nr_mapped 1414
nr_file_pages 1994569
nr_dirty 619
nr_writeback 0
nr_slab_reclaimable 88883
nr_slab_unreclaimable 129859
nr_page_table_pages 15744
nr_kernel_stack 1132
nr_unstable 0
nr_bounce 0
nr_vmscan_write 68708505
nr_writeback_temp 0
nr_isolated_anon 0
nr_isolated_file 0
nr_shmem 14
numa_hit 15295188815
numa_miss 9391232519
numa_foreign 9391232519
numa_interleave 16982
numa_local 15294742520
numa_other 9391678814
pgpgin 20644565778
pgpgout 28740368207
pswpin 63818244
pswpout 61199234
pgalloc_dma 0
pgalloc_dma32 4967135753
pgalloc_normal 19812671901
pgalloc_movable 0
pgfree 24779926775
pgactivate 1290396237
pgdeactivate 1289759899
pgfault 19993995783
pgmajfault 21059190
pgrefill_dma 0
pgrefill_dma32 133366009
pgrefill_normal 921184739
pgrefill_movable 0
pgsteal_dma 0
pgsteal_dma32 1275354745
pgsteal_normal 5641309780
pgsteal_movable 0
pgscan_kswapd_dma 0
pgscan_kswapd_dma32 1333139288
pgscan_kswapd_normal 5870516663
pgscan_kswapd_movable 0
pgscan_direct_dma 0
pgscan_direct_dma32 1064518
pgscan_direct_normal 13317302
pgscan_direct_movable 0
zone_reclaim_failed 0
pginodesteal 0
slabs_scanned 1682790400
kswapd_steal 6902288285
kswapd_inodesteal 4909342
pageoutrun 65408579
allocstall 33223
pgrotated 68402979
htlb_buddy_alloc_success 0
htlb_buddy_alloc_fail 0
unevictable_pgs_culled 3538872
unevictable_pgs_scanned 0
unevictable_pgs_rescued 4989403
unevictable_pgs_mlocked 5192009
unevictable_pgs_munlocked 4989074
unevictable_pgs_cleared 2295
unevictable_pgs_stranded 0
unevictable_pgs_mlockfreed 0
The not-so-bad machine that's 3G in swap that I mentioned previously has
# cat /proc/vmstat
nr_free_pages 898394
nr_inactive_anon 834445
nr_active_anon 4118034
nr_inactive_file 904411
nr_active_file 910902
nr_unevictable 2440
nr_mlock 2440
nr_anon_pages 4836349
nr_mapped 1553
nr_file_pages 2243152
nr_dirty 1097
nr_writeback 0
nr_slab_reclaimable 88788
nr_slab_unreclaimable 127310
nr_page_table_pages 14762
nr_kernel_stack 532
nr_unstable 0
nr_bounce 0
nr_vmscan_write 37404214
nr_writeback_temp 0
nr_isolated_anon 0
nr_isolated_file 0
nr_shmem 12
numa_hit 14220178949
numa_miss 3903552922
numa_foreign 3903552922
numa_interleave 16282
numa_local 14219905325
numa_other 3903826546
pgpgin 6500403846
pgpgout 13255814979
pswpin 36384510
pswpout 36380545
pgalloc_dma 4
pgalloc_dma32 2019546454
pgalloc_normal 16466621455
pgalloc_movable 0
pgfree 18487068066
pgactivate 530670561
pgdeactivate 506674301
pgfault 19986735100
pgmajfault 10611234
pgrefill_dma 0
pgrefill_dma32 41306492
pgrefill_normal 318767138
pgrefill_movable 0
pgsteal_dma 0
pgsteal_dma32 214447663
pgsteal_normal 1645250232
pgsteal_movable 0
pgscan_kswapd_dma 0
pgscan_kswapd_dma32 218030201
pgscan_kswapd_normal 1812499810
pgscan_kswapd_movable 0
pgscan_direct_dma 0
pgscan_direct_dma32 157144
pgscan_direct_normal 1095919
pgscan_direct_movable 0
zone_reclaim_failed 0
pginodesteal 0
slabs_scanned 50051072
kswapd_steal 1858447127
kswapd_inodesteal 202297
pageoutrun 15070446
allocstall 3104
pgrotated 37181651
htlb_buddy_alloc_success 0
htlb_buddy_alloc_fail 0
unevictable_pgs_culled 2113384
unevictable_pgs_scanned 0
unevictable_pgs_rescued 3055005
unevictable_pgs_mlocked 3184675
unevictable_pgs_munlocked 3045129
unevictable_pgs_cleared 10034
unevictable_pgs_stranded 0
unevictable_pgs_mlockfreed 0
Best wishes,
Chris.
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next prev parent reply other threads:[~2010-08-18 16:33 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 12:47 Over-eager swapping Chris Webb
2010-08-02 23:55 ` Minchan Kim
2010-08-03 3:31 ` Chris Webb
2010-08-03 4:09 ` Minchan Kim
2010-08-03 4:28 ` Wu Fengguang
2010-08-03 4:47 ` Minchan Kim
2010-08-03 6:39 ` Wu Fengguang
2010-08-03 21:49 ` Chris Webb
2010-08-04 2:21 ` Wu Fengguang
2010-08-04 3:10 ` Minchan Kim
2010-08-04 3:24 ` Wu Fengguang
2010-08-04 9:58 ` Chris Webb
2010-08-04 11:49 ` Wu Fengguang
2010-08-04 12:04 ` Chris Webb
2010-08-18 14:38 ` Wu Fengguang
2010-08-18 14:46 ` Chris Webb
2010-08-18 15:21 ` Wu Fengguang
2010-08-18 15:57 ` Christoph Lameter
2010-08-18 16:20 ` Wu Fengguang
2010-08-18 15:57 ` Lee Schermerhorn
2010-08-18 15:58 ` Chris Webb
2010-08-18 16:13 ` Christoph Lameter
2010-08-18 16:32 ` Chris Webb
2010-08-19 5:16 ` Balbir Singh
2010-08-19 10:20 ` Chris Webb
2010-08-19 19:03 ` Christoph Lameter
2010-08-18 16:13 ` Wu Fengguang
2010-08-18 16:31 ` Chris Webb [this message]
2010-08-19 5:13 ` Balbir Singh
2010-08-18 16:45 ` Balbir Singh
2010-08-19 9:25 ` Chris Webb
2010-08-19 15:13 ` Balbir Singh
-- strict thread matches above, loose matches on Subject: below --
2012-04-23 9:27 Richard Davies
2012-04-23 12:07 ` Zdenek Kaspar
2012-04-23 17:19 ` Dave Hansen
2012-04-24 0:35 ` Minchan Kim
2012-04-24 11:16 ` Peter Lieven
2012-04-25 14:41 ` Rik van Riel
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