Big hiccups with ZGC
alex at bytopia.org
Thu Nov 8 15:57:22 UTC 2018
A quick follow up. I think we figured what's going on – there is not
enough free heap to deal with the allocation rate. You see, we have a
cache inside the program the size of which was tuned with G1 enabled.
Apparently, ZGC (and Shenandoah too, got the same problems with it
today) inflates the size of the cache in bytes (because of the overhead)
which leaves less breathing room for ZGC/Shenandoah to work. Will try to
reduce the cache size and come back with the results.
More information about the zgc-dev