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.
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Dan Barrett
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Jerry Feldman <[email protected]>
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