http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html When trying i-cms, we recommend the following as an initial set of command line options: -XX:+UseConcMarkSweepGC \ -XX:+CMSIncrementalMode \ -XX:+CMSIncrementalPacing \ -XX:CMSIncreme…

http://www.javaperformancetuning.com/news/newtips072.shtml With a large heap memory, the garbage collection (GC) operation could become a major performance bottleneck. It could take more than ten seconds for the GC to sweep through a multi…

http://download.java.net/jdk/jdk-api-localizations/jdk-api-ja/builds/latest/html/ja/technotes/guides/vm/par-compaction-6.html 並列圧縮はデフォルトで有効になっていません。次のオプションを追加します。 -XX:+UseParallelOldGC 並列圧縮を有効にす…

http://java-house.jp/ml/archive/j-h-b/051099.html HotSpotのホワイトペーパーに，Incremental "Pauseless" Garbage Collector と書いてあるように，GC時の停止時間をほぼ10ミリ秒以下に抑えることができ る(ただし最大停止時間の保証はしません)のが特徴…

http://java.sun.com/javase/technologies/hotspot/exactoptions.jsp -Xconcgc は -XX:+UseConcMarkSweepGC

JVMオプション：-XX:+UseConcMarkSweepGChttp://java.sun.com/docs/hotspot/gc1.4.2/example.htmlJDK5.0で性能向上 http://java.sun.com/performance/reference/whitepapers/5.0_performance.html#2.11