btrace 拓展，可以方便的诊断java应用程序的性能问题
BTrace is a safe, dynamic tracing system for the Java platform. BTrace project is hosted at http://kenai.com/projects/btrace. See also "docs" directory.
First,execute
btrace pid
connect to my version
ConsolePrint.println("-------------------------------------------------------------------------------------------------");
ConsolePrint.println("| CommandName CommandArgs CommandUsage");
ConsolePrint.println("| time {clazzname methodname}[interval] 收集响应时间并显示 ,并支持设计迭代时间（s）,;如 ");
ConsolePrint.println("| time java.lang.Thread start 2");
ConsolePrint.println("| aggre {clazzname methodname}[interval] 收集响应时间并聚集显示 ,并支持设计迭代时间（s）;如 ");
ConsolePrint.println("| aggre java.lang.Thread start 2");
ConsolePrint.println("| call {clazzname methodname}[interval] 判断函数是否被调用;如 ");
ConsolePrint.println("| call java.lang.Thread start 2");
ConsolePrint.println("| jstack {clazzname methodname}[interval] 打印指定函数的调用堆栈;如 ");
ConsolePrint.println("| jstack java.lang.Thread start 2");
ConsolePrint.println("| file {filePath} 支持btrace原有方式，加载btrace file文件;如 ");
ConsolePrint.println("| file Test.java");
ConsolePrint.println("| druid 监控当前druid数据源的链接情况；如 ");
ConsolePrint.println("| druid");
ConsolePrint.println("| isearch 监控当前isearch请求的响应时间；如 ");
ConsolePrint.println("| isearch");
ConsolePrint.println("| sql 监控当前Sql请求的响应时间，聚合显示；如 ");
ConsolePrint.println("| sql");
ConsolePrint.println("| sqlde 监控当前Sql请求的响应时间，聚合显示,且显示详细sql；如 ");
ConsolePrint.println("| sql");
ConsolePrint.println("| quit 退出btrace交互 ");
ConsolePrint.println("| quit");
ConsolePrint.println("| ------------------------------------------------------------------------------------------------");