This is a regression from switching to native promises from promise.jsm. It's a pretty big regression, I'm inclined to P1 but would like more feedback.
1376883 - Core :: CSS Parsing and Computation - stylo: Drop thread pool stack size to 100k
P1. This is one of the largest stylo regressions.
1377999 - Core :: DOM - Try out an arena based allocator for DOM nodes again
erahm, what do you think?
This is really a perf thing, I think maybe there's a concern it could increase memory but in the long run hopefully it would decrease fragmentation. We need to see some test data to get a feel for what kind of tradeoffs we'll see. I suggest deferring until Ehsan is back.
1378526 - Core :: CSS Parsing and Computation - Measure Stylo memory usage using AWSY tests
P1, we really want to measure this sooner than later. It sounds like this is going to just be some build configuration stuff.
1379043 - Firefox :: Untriaged - HIGH RAM/DISK USAGE
P2? It's high heap unclassified on facebook, but not sure about add-ons etc. Maybe just ni? for now.
1379132 - Firefox :: Untriaged - very high memory usage (2GB after 4 hours usage)