[Bug 235748] Using swap with free memory available

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235748

--- Comment #3 from Mark Johnston <markj at FreeBSD.org> ---
Right, so mysqld's memory usage is nearly all anonymous memory, so swapping is
required in order to recycle it.  There is indeed some free RAM available, but
not very much; the page daemon is trying to maintain vm.stats.vm.v_free_target
free pages available.

I'm surprised that you didn't see similar swap usage on 11.1, especially since
we didn't make any major changes to the algorithm which decides when and how
much to swap between 11.1 and 11.2.  Is it possible that mysqld is somehow
using more memory than before?

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