Huge Pages memory usage seems to be high in Ubuntu 16.04 LTS
Recently moved to Ubuntu 16.04 LTS desktop release from 14.04 . Ever since i moved on my laptop with just few gnome terminals and firefox browser i see huge pages memory i.e AnonHugePages seem to be high .
i switched from Unity(default) to gnome classic (metacity) to check if memory usage comes down but out of box it seems to be high.
In particular for a simple calculator process from its /proc/<pid>/smaps file i see "AnonHugePages" is high (when i sum it up) .
Ordinary Anonymous pages (4K size pages) total usage for above calculator shows 37.5MB as well as
AnonHugePages also show equal usage of around 34MB.
i see same normal page size Anonymous memory usage and AnonHugePage memory usage as reported by "pmap -XX" for calculator process.
i ask this question because out of box the overall AnonHugePages comes >300M and seems to be high unless i miss something here.
Can anyone clarify above issue. (One can check AnonPages total and AnonHugePages total from /proc/meminfo reported by Kernel.
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