Changes

All of the values we report to Perfherder for memory come from [https://developer.mozilla.org/docs/Mozilla/Performance/about:memory about:memory]. It might be helpful to run that locally to get an idea of what we measure.

== Test Descriptions ==

=== Explicit Memory summary ===

==== Possible regression causes ====

* Regressions in this often track regressions in explicit and heap unclassified. If we see a regression in resident, but not in other reports this can indicate we are leaking untracked memory (perhaps through shared memory, graphics allocations, file handles, etc).