backport JEP 344-Abortable Mixed Collections for G1 to jdk11u

charlie hunt charlie.hunt at
Wed Mar 27 18:43:49 UTC 2019

Hi Lin,

Since you mentioned long Mixed GCs, have you tried tuning 
-XX:G1MixedGCCountTarget or -XX:G1HeapWastePercent?

I can further explain these two tuneables and when they are useful to 
tweak if you are interested in trying it in the interim.



On 3/27/19 5:51 AM, 臧琳 wrote:
> Dear All,
>       I have tried the JEP344 for a while and find it could help us to avoid the long Mixed GCs when the heap is large.
>       So I am planning to port it back to jdk11u as G1 is the default GC, do you think it is reasonable?
>       Thanks!
> BRs,
> Lin

More information about the hotspot-gc-dev mailing list