Re: [PATCH 5/7] memcg: get rid of once-per-second cache shrinkingfor dead memcgs

[Glauber Costa]

On 11/15/2012 01:41 PM, Kamezawa Hiroyuki wrote:
> (2012/11/15 11:54), Glauber Costa wrote:
>> The idea is to synchronously do it, leaving it up to the shrinking
>> facilities in vmscan.c and/or others. Not actively retrying shrinking
>> may leave the caches alive for more time, but it will remove the ugly
>> wakeups. One would argue that if the caches have free objects but are
>> not being shrunk, it is because we don't need that memory yet.
>>
>> Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
>> CC: Michal Hocko <mhocko@xxxxxxx>
>> CC: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
>> CC: Johannes Weiner <hannes@xxxxxxxxxxx>
>> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> 
> I agree this patch but can we have a way to see the number of unaccounted
> zombie cache usage for debugging ?
> 
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> 
Any particular interface in mind ?


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/