Re: [PATCH v2 3/7] memcg: reduce memory for the lruvec and memcg stats

[Yosry Ahmed]

On Fri, Apr 26, 2024 at 5:37 PM Shakeel Butt <shakeel.butt@xxxxxxxxx> wrote:
>
> At the moment, the amount of memory allocated for stats related structs
> in the mem_cgroup corresponds to the size of enum node_stat_item.
> However not all fields in enum node_stat_item has corresponding memcg
> stats. So, let's use indirection mechanism similar to the one used for
> memcg vmstats management.

Just curious, does the indirection table cause any noticeable
performance impact? My guess is no, but the update paths are usually
very performance sensitive.

I guess lkp will shout at us if there are any noticeable regressions.