1235368Sgnn#!/usr/sbin/dtrace -Zs
2/*
3 * rb_cpudist.d - measure Ruby on-CPU times for types of operation.
4 *                Written for the Ruby DTrace provider.
5 *
6 * $Id: rb_cpudist.d 28 2007-09-13 10:49:37Z brendan $
7 *
8 * This traces Ruby activity from all programs running on the system with
9 * Ruby provider support.
10 *
11 * USAGE: rb_cpudist.d 		# hit Ctrl-C to end
12 *
13 * This script prints distribution plots of elapsed time for Ruby
14 * operations. Use rb_cputime.d for summary reports.
15 *
16 * FIELDS:
17 *		1		Filename of the Ruby program
18 *		2		Type of call (method/obj-new/gc)
19 *		3		Name of call
20 *
21 * Filename and method 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
49ruby*:::function-entry
50{
51	self->depth++;
52	self->exclude[self->depth] = 0;
53	self->function[self->depth] = vtimestamp;
54}
55
56ruby*:::function-return
57/self->function[self->depth]/
58{
59	this->oncpu_incl = vtimestamp - self->function[self->depth];
60	this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
61	self->function[self->depth] = 0;
62	self->exclude[self->depth] = 0;
63	this->file = basename(copyinstr(arg2));
64	this->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
65
66	@types_incl[this->file, "func", this->name] =
67	    quantize(this->oncpu_incl / 1000);
68	@types_excl[this->file, "func", this->name] =
69	    quantize(this->oncpu_excl / 1000);
70
71	self->depth--;
72	self->exclude[self->depth] += this->oncpu_incl;
73}
74
75ruby*:::object-create-start
76{
77	self->object = vtimestamp;
78}
79
80ruby*:::object-create-done
81/self->object/
82{
83	this->oncpu = vtimestamp - self->object;
84	self->object = 0;
85	this->file = basename(copyinstr(arg1));
86	this->file = this->file != NULL ? this->file : ".";
87
88	@types[this->file, "obj-new", copyinstr(arg0)] =
89	    quantize(this->oncpu / 1000);
90
91	self->exclude[self->depth] += this->oncpu;
92}
93
94ruby*:::gc-begin
95{
96	self->gc = vtimestamp;
97}
98
99ruby*:::gc-end
100/self->gc/
101{
102	this->oncpu = vtimestamp - self->gc;
103	self->gc = 0;
104
105	@types[".", "gc", "-"] = quantize(this->oncpu / 1000);
106
107	self->exclude[self->depth] += this->oncpu;
108}
109
110dtrace:::END
111{
112	printf("\nOn-CPU times (us),\n");
113	printa("   %s, %s, %s %@d\n", @types);
114
115	printf("\nExclusive function on-CPU times (us),\n");
116	printa("   %s, %s, %s %@d\n", @types_excl);
117
118	printf("\nInclusive function on-CPU times (us),\n");
119	printa("   %s, %s, %s %@d\n", @types_incl);
120}
121