[Devel] Re: [PATCH 0/4] swapcgroup(v2)

[KOSAKI Motohiro]

> One option is to limit the virtual address space usage of the cgroup to ensure
> that swap usage of a cgroup will *not* exceed the specified limit. Along with a
> good swap controller, it should provide good control over the cgroup's memory usage.

unfortunately, it doesn't works in real world.
IMHO you said as old good age.

because, Some JavaVM consume crazy large virtual address space.
it often consume >10x than phycal memory consumption.

yes, that behaviour is crazy. but it is used widely.
thus, We shouldn't assume virtual address space limitation.


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