1#!/usr/sbin/dtrace -Zs
2/*
3 * php_calldist.d - measure PHP elapsed times for functions.
4 *                  Written for the PHP DTrace provider.
5 *
6 * $Id: php_calldist.d 53 2007-09-24 04:58:38Z brendan $
7 *
8 * This traces PHP activity from all programs running on the system with
9 * PHP provider support.
10 *
11 * USAGE: php_calldist.d 	# hit Ctrl-C to end
12 *
13 * This script prints distribution plots of elapsed time for PHP
14 * operations. Use php_calltime.d for summary reports.
15 *
16 * FIELDS:
17 *		1		Filename of the PHP program
18 *		2		Type of call (func)
19 *		3		Name of call
20 *
21 * Filename and function names are printed if available.
22 *
23 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
24 *
25 * CDDL HEADER START
26 *
27 *  The contents of this file are subject to the terms of the
28 *  Common Development and Distribution License, Version 1.0 only
29 *  (the "License").  You may not use this file except in compliance
30 *  with the License.
31 *
32 *  You can obtain a copy of the license at Docs/cddl1.txt
33 *  or http://www.opensolaris.org/os/licensing.
34 *  See the License for the specific language governing permissions
35 *  and limitations under the License.
36 *
37 * CDDL HEADER END
38 *
39 * 09-Sep-2007	Brendan Gregg	Created this.
40 */
41
42#pragma D option quiet
43
44dtrace:::BEGIN
45{
46	printf("Tracing... Hit Ctrl-C to end.\n");
47}
48
49php*:::function-entry
50/arg0/
51{
52	self->depth++;
53	self->exclude[self->depth] = 0;
54	self->function[self->depth] = timestamp;
55}
56
57php*:::function-return
58/arg0 && self->function[self->depth]/
59{
60	this->elapsed_incl = timestamp - self->function[self->depth];
61	this->elapsed_excl = this->elapsed_incl - self->exclude[self->depth];
62	self->function[self->depth] = 0;
63	self->exclude[self->depth] = 0;
64	this->file = basename(copyinstr(arg1));
65	this->name = copyinstr(arg0);
66
67	@types_incl[this->file, "func", this->name] =
68	    quantize(this->elapsed_incl / 1000);
69	@types_excl[this->file, "func", this->name] =
70	    quantize(this->elapsed_excl / 1000);
71
72	self->depth--;
73	self->exclude[self->depth] += this->elapsed_incl;
74}
75
76dtrace:::END
77{
78	printf("\nExclusive function elapsed times (us),\n");
79	printa("   %s, %s, %s %@d\n", @types_excl);
80
81	printf("\nInclusive function elapsed times (us),\n");
82	printa("   %s, %s, %s %@d\n", @types_incl);
83}
84