Re: [PATCH] Synchronize task mm counters on context switch

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On Wed 21-02-18 18:49:35, Daniel Colascione wrote:
[...]
> For more context: on Android, we've historically scanned each processes's
> address space using /proc/pid/smaps (and /proc/pid/smaps_rollup more
> recently) to extract memory management statistics. We're looking at
> replacing this mechanism with the new /proc/pid/status per-memory-type
> (e.g., anonymous, file-backed) counters so that we can be even more
> efficient, but we'd like the counts we collect to be accurate.

If you need the accuracy then why don't you simply make
SPLIT_RSS_COUNTING configurable and disable it in your setup?
-- 
Michal Hocko
SUSE Labs

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