8200557: OopStorage parallel iteration scales poorly
Summary: Change representation of sequence of all blocks for better scaling.
Reviewed-by: coleenp, eosterlund
^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.src-rev$
^.jib/
\.DS_Store
\.metadata/
\.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
.*/JTreport/.*
.*/JTwork/.*