1 files changed, 64 insertions, 0 deletions
diff --git a/Java/j_thread.d b/Java/j_thread.d
new file mode 100755
index 000000000000..08d2de8b14c1
--- /dev/null
+++ b/Java/j_thread.d
@@ -0,0 +1,64 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * j_thread.d - snoop Java thread execution using DTrace.
+                Written for the Java hotspot DTrace provider.
+ *
+ * $Id: j_thread.d 19 2007-09-12 07:47:59Z brendan $
+ *
+ * This traces activity from all Java processes on the system with hotspot
+ * provider support (1.6.0).
+ *
+ * USAGE: j_thread.d 		# hit Ctrl-C to end
+ *
+ * FIELDS:
+ *		TIME		Time string
+ *		PID		Process ID
+ *		TID		Thread ID
+ *		THREAD		Thread name
+ *
+ * LEGEND:
+ *		=>		thread start
+ *		<=		thread end
+ *
+ * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
+ *
+ * CDDL HEADER START
+ *
+ *  The contents of this file are subject to the terms of the
+ *  Common Development and Distribution License, Version 1.0 only
+ *  (the "License").  You may not use this file except in compliance
+ *  with the License.
+ *
+ *  You can obtain a copy of the license at Docs/cddl1.txt
+ *  or http://www.opensolaris.org/os/licensing.
+ *  See the License for the specific language governing permissions
+ *  and limitations under the License.
+ *
+ * CDDL HEADER END
+ *
+ * 09-Sep-2007	Brendan Gregg	Created this.
+ */
+
+#pragma D option quiet
+#pragma D option switchrate=10
+
+dtrace:::BEGIN
+{
+	printf("%-20s  %6s/%-5s -- %s\n", "TIME", "PID", "TID", "THREAD");
+}
+
+hotspot*:::thread-start
+{
+	this->thread = (char *)copyin(arg0, arg1 + 1);
+	this->thread[arg1] = '\0';
+	printf("%-20Y  %6d/%-5d => %s\n", walltimestamp, pid, tid,
+	    stringof(this->thread));
+}
+
+hotspot*:::thread-stop
+{
+	this->thread = (char *)copyin(arg0, arg1 + 1);
+	this->thread[arg1] = '\0';
+	printf("%-20Y  %6d/%-5d <= %s\n", walltimestamp, pid, tid,
+	    stringof(this->thread));
+}