1235368Sgnn#!/usr/sbin/dtrace -Zs
2/*
3 * js_cputime.d - measure JavaScript on-CPU times for types of operation.
4 *                Written for the JavaScript DTrace provider.
5 *
6 * $Id: js_cputime.d 63 2007-10-04 04:34:38Z brendan $
7 *
8 * This traces JavaScript activity from all browsers running on the system with
9 * JavaScript provider support.
10 *
11 * USAGE: js_cputime.d	 	# hit Ctrl-C to end
12 *
13 * FIELDS:
14 *		FILE		Filename of the JavaScript program
15 *		TYPE		Type of call (func/obj-new/gc/total)
16 *		NAME		Name of call
17 *		TOTAL		Total on-CPU time for calls (us)
18 *
19 * Filename and function names are printed if available.
20 *
21 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
22 *
23 * CDDL HEADER START
24 *
25 *  The contents of this file are subject to the terms of the
26 *  Common Development and Distribution License, Version 1.0 only
27 *  (the "License").  You may not use this file except in compliance
28 *  with the License.
29 *
30 *  You can obtain a copy of the license at Docs/cddl1.txt
31 *  or http://www.opensolaris.org/os/licensing.
32 *  See the License for the specific language governing permissions
33 *  and limitations under the License.
34 *
35 * CDDL HEADER END
36 *
37 * 09-Sep-2007	Brendan Gregg	Created this.
38 */
39
40#pragma D option quiet
41
42dtrace:::BEGIN
43{
44	printf("Tracing... Hit Ctrl-C to end.\n");
45}
46
47javascript*:::function-entry
48{
49	self->depth++;
50	self->exclude[self->depth] = 0;
51	self->function[self->depth] = vtimestamp;
52}
53
54javascript*:::function-return
55/self->function[self->depth]/
56{
57	this->oncpu_incl = vtimestamp - self->function[self->depth];
58	this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
59	self->function[self->depth] = 0;
60	self->exclude[self->depth] = 0;
61	this->file = basename(copyinstr(arg0));
62	this->name = copyinstr(arg2);
63
64	@num[this->file, "func", this->name] = count();
65	@num["-", "total", "-"] = count();
66	@types_incl[this->file, "func", this->name] = sum(this->oncpu_incl);
67	@types_excl[this->file, "func", this->name] = sum(this->oncpu_excl);
68	@types_excl["-", "total", "-"] = sum(this->oncpu_excl);
69
70	self->depth--;
71	self->exclude[self->depth] += this->oncpu_incl;
72}
73
74javascript*:::object-create-start
75{
76	self->object = vtimestamp;
77}
78
79javascript*:::object-create-done
80/self->object/
81{
82	this->oncpu = vtimestamp - self->object;
83	self->object = 0;
84	this->file = basename(copyinstr(arg0));
85	this->name = copyinstr(arg1);
86
87	@num[this->file, "obj-new", this->name] = count();
88	@num["-", "total", "-"] = count();
89	@types[this->file, "obj-new", this->name] = sum(this->oncpu);
90	@types["-", "total", "-"] = sum(this->oncpu);
91
92	self->exclude[self->depth] += this->oncpu;
93}
94
95dtrace:::END
96{
97	printf("\nCount,\n");
98	printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "COUNT");
99	printa("   %-20.20s %-10s %-32s %@8d\n", @num);
100
101	normalize(@types, 1000);
102	printf("\nElapsed times (us),\n");
103	printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
104	printa("   %-20.20s %-10s %-32s %@8d\n", @types);
105
106	normalize(@types_excl, 1000);
107	printf("\nExclusive function on-CPU times (us),\n");
108	printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
109	printa("   %-20.20s %-10s %-32s %@8d\n", @types_excl);
110
111	normalize(@types_incl, 1000);
112	printf("\nInclusive function on-CPU times (us),\n");
113	printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
114	printa("   %-20.20s %-10s %-32s %@8d\n", @types_incl);
115}
116