1 files changed, 56 insertions, 0 deletions
diff --git a/Java/j_package.d b/Java/j_package.d
new file mode 100755
index 000000000000..cfeaf050bd4b
--- /dev/null
+++ b/Java/j_package.d
@@ -0,0 +1,56 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * j_package.d - count Java class loads by package using DTrace.
+ *               Written for the Java hotspot DTrace provider.
+ *
+ * $Id: j_package.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_package.d 		# hit Ctrl-C to end
+ *
+ * FIELDS:
+ *		PID		Process ID
+ *		LOADS		Class loads during trace
+ *		PACKAGE		Package name from class
+ *
+ * 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
+
+dtrace:::BEGIN
+{
+	printf("Tracing... Hit Ctrl-C to end.\n");
+}
+
+hotspot*:::class-loaded
+{
+	this->class = (char *)copyin(arg0, arg1 + 1);
+	this->class[arg1] = '\0';
+
+	@loads[pid, dirname(stringof(this->class))] = count();
+}
+
+dtrace:::END
+{
+	printf("   %6s %8s  %s\n", "PID", "LOADS", "PACKAGE");
+	printa("   %6d %@8d  %s\n", @loads);
+}