Hi,
been peeking at what Persistent<>s the GC gets to work over & the size
of that root set:
youtube.com (non-Oilpan) : ~480 persistents on the first GC after page
load.
youtube.com (Oilpan): ~5100 persistents for same.
I really didn't expect that.
ComputedStyle's StyleRareNonInheritedData's persistents seem to be
behind a considerable portion.
--sigbjorn