8231153: Improve concurrent refinement statistics
8043505: G1RemSet::_conc_refine_cards is incremented unsynchronized
Summary: Added refinement rates and counts, removed _conc_refine_cards
Reviewed-by: tschatzl, sjohanss
^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.src-rev$
^.jib/
(^|/)\.DS_Store
(^|/)\.metadata/
(^|/)\.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
(^|/)JTreport/
(^|/)JTwork/
(^|/)\.git/
^src/utils/hsdis/build/