On my nodes (7.9.3) I see the following graph's in stackmonitoring:
What strikes me is the 0 for old .
As far as I know, the default ratio is 2? So I would not expect 0 here, but about double of what young shows.
For GC i have pretty much the default settings in jvm.options with jvm 15, so
(I did try to change the G1ReservePercent to 15 on 1 of my nodes but that did not really change anything).
And does anyone know a picture of a graph that shows how a decently configured GC should show up in the graphs?