Re: [PATCH 4/6] memcg: move recent_rotated and recent_scanned informations

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On Sat, Jun 23, 2012 at 11:51:13AM +0200, Johannes Weiner wrote:
>On Sat, Jun 23, 2012 at 02:17:39PM +0800, Wanpeng Li wrote:
>> From: Wanpeng Li <liwp@xxxxxxxxxxxxxxxxxx>
>> 
>> Move recent_rotated and recent_scanned prints next to inactive_anon,
>> ative_anon, inactive_file, active_file, and unevictable prints to
>> save developers' time. Since they have to go a long way(when cat memory.stat)
>> to find recent_rotated and recent_scanned prints which has relationship
>> with the memory cgroup we care. These prints are behind total_* which
>> not just focus on the memory cgroup we care currently.
>
>The hierarchical stats are about that memcg, too.  And I don't want to

Move recent_rotated and recent_scanned prints next to file lru lists
just because the pageout code in vmscan.c keeps track of how many of 
the mem/swap backed and file backed pages are referenced, and the 
higher the rotated/scanned ratio, the more valuable that cache is. 
Move five lru lists and associated debug informations together can 
make things convenience. :-)

Regards,
Wanpeng Li

>turn on debugging and then look for the extra information hiding in
>the middle of regular stats.
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