"Max = 0K" in the following "Current rem set statistics" is confusing. Total heap region code root sets sizes = 98K. Max = 0K. 0K ( 0.7%) by 93 Young regions 0K ( 0.0%) by 4 Humonguous regions 0K ( 0.6%) by 79 Free regions 96K ( 98.6%) by 336 Old regions 79865 code roots represented. 0 ( 0.0%) elements by 93 Young regions 0 ( 0.0%) elements by 4 Humonguous regions 0 ( 0.0%) elements by 79 Free regions 79865 (100.0%) elements by 336 Old regions Region with largest amount of code roots = 511:(E)[0x00000000ffc00000,0x0000000100000000,0x0000000100000000], size = 0K, num_elems = 0. The size (i.e., in "Max" and "size") reported seems to be limited to "strongly" reachable. If the the max of code root sets size is 0K. The total should be 0K too. Hence the confusing part. The following flags have been used for the summary report: -XX:+UnlockDiagnosticVMOptions -XX:+G1SummarizeRSetStats -XX:G1SummarizeRSetStatsPeriod=10
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