[Discuss] khugepaged + vmware = massive CPU load

[gaf at blu.org (Jerry Feldman)]

Note that /proc/meminfo contains some information regarding hugepages.

On 12/11/2015 12:59 PM, Daniel Barrett wrote:
> On December 11, 2015, Dan Ritter wrote:
>> Normally your system keeps track of memory in 4KB pages. They're
>> analogous to filesystem blocks. [...] A hugepage is a 2MB page.
> Dan, thanks for a beautiful explanation. I really appreciate it.
>
>> In the 2.x kernel series where they were invented, hugepages had
>> to be turned on explicitly (there's a sysctl) and applications
>> had to request them.
> Hmm... when I upgraded from 14.04 to 15.10, this included a move from
> a 3.x kernel to a 4.x kernel. Perhaps transparent hugepages got
> enabled by default in 4.x.
>
> --
> Dan Barrett
> dbarrett at blazemonger.com
>
>
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Jerry Feldman <gaf at blu.org>
Boston Linux and Unix
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