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Message-ID: <alpine.DEB.2.00.1104121654340.10966@chino.kir.corp.google.com>
Date:	Tue, 12 Apr 2011 16:55:00 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michael Rubin <mrubin@...gle.com>,
	Wu Fengguang <fengguang.wu@...el.com>
Subject: Re: [PATCH] mm: per-node vmstat show proper vmstats

On Mon, 11 Apr 2011, KOSAKI Motohiro wrote:

> commit 2ac390370a (writeback: add /sys/devices/system/node/<node>/vmstat)
> added vmstat entry. But strangely it only show nr_written and nr_dirtied.
> 
>         # cat /sys/devices/system/node/node20/vmstat
>         nr_written 0
>         nr_dirtied 0
> 
> Of cource, It's no adequate. With this patch, the vmstat show
> all vm stastics as /proc/vmstat.
> 
>         # cat /sys/devices/system/node/node0/vmstat
> 	nr_free_pages 899224
> 	nr_inactive_anon 201
> 	nr_active_anon 17380
> 	nr_inactive_file 31572
> 	nr_active_file 28277
> 	nr_unevictable 0
> 	nr_mlock 0
> 	nr_anon_pages 17321
> 	nr_mapped 8640
> 	nr_file_pages 60107
> 	nr_dirty 33
> 	nr_writeback 0
> 	nr_slab_reclaimable 6850
> 	nr_slab_unreclaimable 7604
> 	nr_page_table_pages 3105
> 	nr_kernel_stack 175
> 	nr_unstable 0
> 	nr_bounce 0
> 	nr_vmscan_write 0
> 	nr_writeback_temp 0
> 	nr_isolated_anon 0
> 	nr_isolated_file 0
> 	nr_shmem 260
> 	nr_dirtied 1050
> 	nr_written 938
> 	numa_hit 962872
> 	numa_miss 0
> 	numa_foreign 0
> 	numa_interleave 8617
> 	numa_local 962872
> 	numa_other 0
> 	nr_anon_transparent_hugepages 0
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: Michael Rubin <mrubin@...gle.com>
> Cc: Wu Fengguang <fengguang.wu@...el.com>

This is very useful for cpuset users.

Acked-by: David Rientjes <rientjes@...gle.com>
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