Dmitri Pivkine

WIP:Cache Card State in local variable

7

We are trying to investigate racing condition for Card Table. An Assertion with message has been added recently to output unexpected Card state. It was not enough unfortunately, *card value...

getGuaranteedNurseryRange() in GCExtensionsBase is defind always no. There is no need to check J9VM_GC_GENERATIONAL (and technically this is wrong flag any way, OMR_GC_MODRON_SCAVENGER should be checked instead). This function is...

Improve object heap allocation for Compressed References JVM for zLinux

6

Current behaviour for object heap allocation on zLinux is direction bottom-up. The bottom-up allocation direction is selected to get performance benefit from smaller shift on Z platform. By this reason...

Handling 0-length arrays in JNI Array Critical in GC

3

The representation of 0-length array `` is technically Discontiguous. The criteria for Discontiguous "size in elements" field contains 0 and it happen for 0-length array naturally due size 0. According...