We changed the default to madvise, as using it as always results in
performance regressions in our testing. See bug
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1703742.

Have you run any specific tests on Power Systems that would justify
changing the setting for ppc64el only?

Thanks.
Cascardo.

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https://bugs.launchpad.net/bugs/1753708

Title:
  Ubuntu18.04:PowerPC - Set Transparent Huge Pages (THP) by default to
  "always"

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