Reserve the region from CollectionSet #4286
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for Balanced Partial Garbage Collection, all of eden regions(
age0 and age1) and partial of survivor regions would be selected
as collection set, some of those regions have a large freespace,
which could be used as survivor region .perpare reserve list
("most freespace" for each age region) during pre-collection,
keep them as candidate of the survivors in order to avoid
potential copyforward abort case.
- new global variable tarokReserveRegionsFromCollectionSet for
deciding if reserving regions from collection set.
(can be RESERVE_REGIONS_MOST_ALLOCATABLE, RESERVE_REGIONS_MOST_FREE,
RESERVE_REGIONS_NO(default)).
Signed-off-by: Lin Hu <linhu@ca.ibm.com>
LinHu2016
requested review from
charliegracie,
rwy7 and
youngar
as code owners
|
@genie-omr build all |
rwy7
approved these changes
Sep 12, 2019
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Signed-off-by: Lin Hu linhu@ca.ibm.com