2015年11月7日

摘要: jstatMonitors Java Virtual Machine (JVM) statistics. This command is experimental and unsupported.Synopsisjstat[generalOption|outputOptions vmid[inter... 阅读全文
posted @ 2015-11-07 22:03 帅胡 阅读(2240) 评论(0) 推荐(0) 编辑
摘要: jpsLists the instrumented Java Virtual Machines (JVMs) on the target system. This command is experimental and unsupported.Synopsisjps[options] [hostid... 阅读全文
posted @ 2015-11-07 22:00 帅胡 阅读(2217) 评论(0) 推荐(0) 编辑
摘要: jmcJava Mission Control is a Profiling, Monitoring, and Diagnostics Tools Suite.Synopsisjmc[options]Options, if used, should follow immediately after ... 阅读全文
posted @ 2015-11-07 21:52 帅胡 阅读(1190) 评论(0) 推荐(0) 编辑
摘要: jconsoleStarts a graphical console that lets you monitor and manage Java applications.Synopsisjconsole[options] [ connection ... ]optionsThe command-l... 阅读全文
posted @ 2015-11-07 21:35 帅胡 阅读(261) 评论(0) 推荐(0) 编辑
摘要: jcmdSends diagnostic command requests to a running Java Virtual Machine (JVM).Synopsisjcmd[-l|-h|-help]jcmdpid|main-classPerfCounter.printjcmdpid|main... 阅读全文
posted @ 2015-11-07 21:31 帅胡 阅读(1248) 评论(0) 推荐(0) 编辑
摘要: 最近在网上看到一些人讨论到java.lang.Runtime类中的freeMemory(),totalMemory(),maxMemory ()这几个方法的一些问题,很多人感到很疑惑,为什么,在java程序刚刚启动起来的时候freeMemory()这个方法返回的只有一两兆字节,而随着 java程序往... 阅读全文
posted @ 2015-11-07 10:13 帅胡 阅读(2746) 评论(0) 推荐(0) 编辑

导航