1 files changed, 101 insertions, 0 deletions
diff --git a/JavaScript/js_cpudist.d b/JavaScript/js_cpudist.d
new file mode 100755
index 000000000000..cbe168d742d4
--- /dev/null
+++ b/JavaScript/js_cpudist.d
@@ -0,0 +1,101 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * js_cpudist.d - measure JavaScript on-CPU times for types of operation.
+ *                 Written for the JavaScript DTrace provider.
+ *
+ * $Id: js_cpudist.d 63 2007-10-04 04:34:38Z brendan $
+ *
+ * This traces JavaScript activity from all browsers running on the system with
+ * JavaScript provider support.
+ *
+ * USAGE: js_cpudist.d 		# hit Ctrl-C to end
+ *
+ * FIELDS:
+ *		1		Filename of the JavaScript program
+ *		2		Type of call (func/obj-new)
+ *		3		Name of call
+ *
+ * Filename and function names are printed if available.
+ *
+ * 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");
+}
+
+javascript*:::function-entry
+{
+	self->depth++;
+	self->exclude[self->depth] = 0;
+	self->function[self->depth] = vtimestamp;
+}
+
+javascript*:::function-return
+/self->function[self->depth]/
+{
+	this->oncpu_incl = vtimestamp - self->function[self->depth];
+	this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
+	self->function[self->depth] = 0;
+	self->exclude[self->depth] = 0;
+	this->file = basename(copyinstr(arg0));
+	this->name = copyinstr(arg2);
+
+	@types_incl[this->file, "func", this->name] =
+	    quantize(this->oncpu_incl / 1000);
+	@types_excl[this->file, "func", this->name] =
+	    quantize(this->oncpu_excl / 1000);
+
+	self->depth--;
+	self->exclude[self->depth] += this->oncpu_incl;
+}
+
+javascript*:::object-create-start
+{
+	self->object = vtimestamp;
+}
+
+javascript*:::object-create-done
+/self->object/
+{
+	this->oncpu = vtimestamp - self->object;
+	self->object = 0;
+	this->file = basename(copyinstr(arg0));
+	this->name = copyinstr(arg1);
+
+	@types[this->file, "obj-new", this->name] =
+	    quantize(this->oncpu / 1000);
+
+	self->exclude[self->depth] += this->oncpu;
+}
+
+dtrace:::END
+{
+	printf("\nElapsed times (us),\n");
+	printa("   %s, %s, %s %@d\n", @types);
+
+	printf("\nExclusive function on-CPU times (us),\n");
+	printa("   %s, %s, %s %@d\n", @types_excl);
+
+	printf("\nInclusive function on-CPU times (us),\n");
+	printa("   %s, %s, %s %@d\n", @types_incl);
+}