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Tue Feb 10 09:33:40 GMT 2015 various tips-XX:+TieredCompilation, -XX:+UseCompressedOops, Escape Analysis and -XX:+UseNUMA - http://docs.oracle.com[..]uides/vm/performance-enhancements-7.html Interestingly, PrintWriter, if pooled, shows considerable performance improvement. The creation of the object is expensive because of a call to get the line separator in its constructor. http://sachinhejip.blogspot.com[..]/08/experiences-in-java-performance.html Experience in twitter - http://www.umbrant.com/blog/2012/twitter_jvm_tuning.html Cases study on how to test performance from using difference GC algo - http://plumbr.eu/blog/g1-vs-cms-vs-parallel-gc A lot of information - http://www.javaadvent.com[..]-1-of-3-synopsis-of-articles-videos.html Basically use lower level construct - http://blog.jooq.org[..]-easy-performance-optimisations-in-java/ (google search) (amazon search) second |