Approved. You may commit this. Though, maybe use -S as first option to not mix lower and upper case options (sort them).

No objections for ports I maintain.

In D36309#935684, @jlduran_gmail.com wrote:

Is there a reason why this change was not MFCd? Thank you!

In D40772#966842, @alc wrote:

In D40772#966839, @eugen_grosbein.net wrote:

Note this became more important since we have ASLR turned on for 64 bit processes since 13.2-RELEASE. And ASLR adds great deal of fragmentation. It leads to significant performance degradation over long run due to superpages becoming unusable due memory fragmentation.

Until a few months ago, the handling of anonymous memory allocations when ASLR is turned on was not really operating as intended. Over the summer, I fixed the biggest of the issues. Consequently, the behavior that I see now on CURRENT (and presumably 14) with ASLR on is no worse than with it off.