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Posted to commits@cassandra.apache.org by "Brad Schoening (Jira)" <ji...@apache.org> on 2023/01/18 23:54:00 UTC
[jira] (CASSANDRA-18027) Use G1GC as default
[ https://issues.apache.org/jira/browse/CASSANDRA-18027 ]
Brad Schoening deleted comment on CASSANDRA-18027:
--------------------------------------------
was (Author: bschoeni):
What is the rational for using -XX:MaxTenuringThreshold=1 vs the defaults of 15. I've never tuned MaxTenuringThreshold, but wouldn't that promote objects to old space very quickly?
> Use G1GC as default
> -------------------
>
> Key: CASSANDRA-18027
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18027
> Project: Cassandra
> Issue Type: Task
> Components: Local/Config
> Reporter: Michael Semb Wever
> Assignee: Michael Semb Wever
> Priority: High
> Fix For: 4.1.x, 4.x
>
>
> G1GC is well battle tested now, and the recommended configuration for most users. CMS can work well on smaller heaps but requires more tuning, initially and over time. G1GC just works. CMS was deprecated in JDK 9.
> Patch at https://github.com/apache/cassandra/compare/trunk...thelastpickle:cassandra:mck/7486/trunk
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