Repository/branch for development of generational ZGC

Stefan Karlsson stefan.karlsson at
Mon May 31 14:26:07 UTC 2021

FYI, we have just created a development branch with an initial set of 
changes to start building generations into ZGC:

We've been experimenting with this feature for while; testing different 
barriers, remember set handling, GC cycle synchronization, etc. The code 
passes most of our tier1-tier7 testing (linux-x64 only), with exception 
for some serviceability features. Note, that this is still 
work-in-progress, and we are going to make a a lot of changes. Just as 
an example, there are currently no GC heuristics in place to trigger 
minor and major cycles; they are simply triggered based on timers.


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