HeapStatsのデモ (Java The Night)

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  • 1. Java障害解析支援ツール2013/05/14末永 恭正 @YaSuenag
  • 2. Javaの障害解析を助けるツールです!BeforeAfterOutOfMemory!?デッドロック!?仕掛け 再現ログ収集だけ解析
  • 3. OSからJVMまで、いろんな情報!
  • 4. SPECjvm2008のComposite result比較で5%以下!219.90 214.730.0050.00100.00150.00200.00250.00アタッチなし アタッチあり測定環境• マシン: DELL PowerEdge R810(Xeon X7542、メモリ32GB)• OS: Red Hat Enterprise Linux Server 6.3 x86_64• JDK: java-1.6.0-openjdk-1.6.0.0-1.50.1.11.5.el6_3.x86_64• java起動オプション:- Xmn768m -Xms4500m -Xmx4500m
  • 5. SPECjvm2008 1回分で913KB※17ショット、1ショット平均53.6KB見積もりプログラム、あります!http://icedtea.classpath.org/wiki/HeapStats/tips/agent#How_can_I_estimate_SnapShot_file_size_.3F
  • 6.  HeapStats @ IcedTea http://icedtea.classpath.org/wiki/HeapStats ML heapstats@icedtea.classpath.org http://icedtea.classpath.org/mailman/listinfo/heapstats
  • 7. なんかエグいの期待してます?お見せします!
  • 8.  HeapStats @ IcedTea http://icedtea.classpath.org/wiki/HeapStats ML heapstats@icedtea.classpath.org http://icedtea.classpath.org/mailman/listinfo/heapstats