Messages in this thread | | | Date | Tue, 14 Nov 2017 09:21:03 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH] mm: show stats for non-default hugepage sizes in /proc/meminfo |
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On Mon 13-11-17 16:33:05, Roman Gushchin wrote: [...] > IMO, /proc/meminfo should give a user a high-level overview of memory usage > in the system, without a need to look into other places. Of course, we always > have some amount of unaccounted memory, but it shouldn't be measured in Gb, > as in this case.
Well, this is not so easy. There can be _a lot_ of unaccounted memory. Gbs is not something unheard of (fs metadata directly allocated by the page allocator, network buffers, you name it). Unlike those the hugetlb requires an explicit admin interaction. Especially for the non-default hugetlb page sizes.
-- Michal Hocko SUSE Labs
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