On Tue, Feb 09, 2021 at 11:33:02AM -0500, Johannes Weiner
wrote:
> Rstat combines the best of both worlds: from the write side, it
> cheaply maintains a queue of cgroups that have pending changes, so
> that the read side can do selective tree aggregation. This way the
> reported stats will
Replace the memory controller's custom hierarchical stats code with
the generic rstat infrastructure provided by the cgroup core.
The current implementation does batched upward propagation from the
write side (i.e. as stats change). The per-cpu batches introduce an
error, which is multiplied by
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