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Posted to commits@lucene.apache.org by Apache Wiki <wi...@apache.org> on 2015/04/29 16:44:28 UTC

[Solr Wiki] Trivial Update of "ShawnHeisey" by ShawnHeisey

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The "ShawnHeisey" page has been changed by ShawnHeisey:
https://wiki.apache.org/solr/ShawnHeisey?action=diff&rev1=43&rev2=44

Comment:
moved a word.

  
  == GC Tuning for Solr ==
  
- /!\ Starting in version 4.10, and greatly improved in 5.0, startup scripts were added that do GC tuning for you, using CMS (ConcurrentMarkSweep) settings very similar to the CMS settings that you can find further down on this page.  If you are using the bin/solr script or bin\solr to start Solr, you already have GC tuning and won't need to worry about the recommendations here.
+ /!\ Starting in version 4.10, and greatly improved in 5.0, startup scripts were added that do GC tuning for you, using CMS (ConcurrentMarkSweep) settings very similar to the CMS settings that you can find further down on this page.  If you are using the bin/solr or bin\solr script to start Solr, you already have GC tuning and won't need to worry about the recommendations here.
  
  The secret to GC tuning:  Eliminating full garbage collections.  A full garbage collection is slow, no matter what collector you're using.  If you can set up the options for GC such that both young and old generations are always kept below max size by their generation-specific collection algorithms, performance is almost guaranteed to be good.