1N/A * j_classflow.d - trace a Java class method flow using DTrace. 1N/A * Written for the Java hotspot DTrace provider. 1N/A * $Id: j_classflow.d 63 2007-10-04 04:34:38Z brendan $ 1N/A * This traces activity from all Java processes on the system with hotspot 1N/A * provider support (1.6.0) and the flag "+ExtendedDTraceProbes". eg, 1N/A * java -XX:+ExtendedDTraceProbes classfile 1N/A * USAGE: j_classflow.d classname # hit Ctrl-C to end 1N/A * This watches Java method entries and returns, and indents child 1N/A * TIME(us) Time since boot, us 1N/A * CLASS.METHOD Java class and method name 1N/A * WARNING: Watch the first column carefully, it prints the CPU-id. If it 1N/A * changes, then it is very likely that the output has been shuffled. 1N/A * Changes in TID will appear to shuffle output, as we change from one thread 1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 1N/A * The contents of this file are subject to the terms of the 1N/A * Common Development and Distribution License, Version 1.0 only 1N/A * (the "License"). You may not use this file except in compliance 1N/A * See the License for the specific language governing permissions 1N/A * and limitations under the License. 1N/A * 09-Sep-2007 Brendan Gregg Created this. 1N/A/* increasing bufsize can reduce drops */ 1N/A printf(
"%3s %6s %-16s -- %s\n",
"C",
"PID",
"TIME(us)",
"CLASS.METHOD");