Varun Thacker created SOLR-9301:
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Summary: Consider removing ConcGCThreads and ParallelGCThreads
from default tuning parameters
Key: SOLR-9301
URL: https://issues.apache.org/jira/browse/SOLR-9301
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Varun Thacker
Priority: Minor
Currently in our bin scripts we set default values for these two parameters
{{-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4}}
Given that the JVM can smartly choose the default values based on the number of
processors should we still be overriding the defaults?
http://www.oracle.com/technetwork/articles/java/g1gc-1984535.html
For beefier machines this could be significantly slow down the collection times.
Will it have a negative effect for smaller machines?
Any other downsides to removing this that I might be overlooking?
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