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Concurrent thread-stack processing in the Z Garbage Collector

Day 2


The Z Garbage Collector (ZGC) goal was to not exceed 10 ms pause times. Once we got there, we wanted to be more ambitious and make pauses sub-millisecond. To do that, you can no longer scan thread stacks inside of GC pauses. This talk is about "JEP 376: ZGC: Concurrent thread-stack processing", where we moved this processing out to concurrent phases instead, to achieve the low latency GC dream.

  • #low-latency-GC


Invited experts