[Devel] [PATCH -mm 1/4] sl[au]b: do not charge large allocations to memcg

Michal Hocko mhocko at suse.cz
Thu Mar 27 13:43:20 PDT 2014


On Thu 27-03-14 11:37:11, Vladimir Davydov wrote:
[...]
> In fact, do we actually need to charge every random kmem allocation? I
> guess not. For instance, filesystems often allocate data shared among
> all the FS users. It's wrong to charge such allocations to a particular
> memcg, IMO. That said the next step is going to be adding a per kmem
> cache flag specifying if allocations from this cache should be charged
> so that accounting will work only for those caches that are marked so
> explicitly.

How do you select which caches to track?

-- 
Michal Hocko
SUSE Labs



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