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comparison src/share/vm/services/runtimeService.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children 8859772195c6
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_runtimeService.cpp.incl"
27
28 HS_DTRACE_PROBE_DECL(hs_private, safepoint__begin);
29 HS_DTRACE_PROBE_DECL(hs_private, safepoint__end);
30
31 TimeStamp RuntimeService::_app_timer;
32 TimeStamp RuntimeService::_safepoint_timer;
33 PerfCounter* RuntimeService::_sync_time_ticks = NULL;
34 PerfCounter* RuntimeService::_total_safepoints = NULL;
35 PerfCounter* RuntimeService::_safepoint_time_ticks = NULL;
36 PerfCounter* RuntimeService::_application_time_ticks = NULL;
37 PerfCounter* RuntimeService::_thread_interrupt_signaled_count = NULL;
38 PerfCounter* RuntimeService::_interrupted_before_count = NULL;
39 PerfCounter* RuntimeService::_interrupted_during_count = NULL;
40
41 void RuntimeService::init() {
42 // Make sure the VM version is initialized
43 Abstract_VM_Version::initialize();
44
45 if (UsePerfData) {
46 EXCEPTION_MARK;
47
48 _sync_time_ticks =
49 PerfDataManager::create_counter(SUN_RT, "safepointSyncTime",
50 PerfData::U_Ticks, CHECK);
51
52 _total_safepoints =
53 PerfDataManager::create_counter(SUN_RT, "safepoints",
54 PerfData::U_Events, CHECK);
55
56 _safepoint_time_ticks =
57 PerfDataManager::create_counter(SUN_RT, "safepointTime",
58 PerfData::U_Ticks, CHECK);
59
60 _application_time_ticks =
61 PerfDataManager::create_counter(SUN_RT, "applicationTime",
62 PerfData::U_Ticks, CHECK);
63
64
65 // create performance counters for jvm_version and its capabilities
66 PerfDataManager::create_constant(SUN_RT, "jvmVersion", PerfData::U_None,
67 (jlong) Abstract_VM_Version::jvm_version(), CHECK);
68
69 // I/O interruption related counters
70
71 // thread signaling via os::interrupt()
72
73 _thread_interrupt_signaled_count =
74 PerfDataManager::create_counter(SUN_RT,
75 "threadInterruptSignaled", PerfData::U_Events, CHECK);
76
77 // OS_INTRPT via "check before" in _INTERRUPTIBLE
78
79 _interrupted_before_count =
80 PerfDataManager::create_counter(SUN_RT, "interruptedBeforeIO",
81 PerfData::U_Events, CHECK);
82
83 // OS_INTRPT via "check during" in _INTERRUPTIBLE
84
85 _interrupted_during_count =
86 PerfDataManager::create_counter(SUN_RT, "interruptedDuringIO",
87 PerfData::U_Events, CHECK);
88
89 // The capabilities counter is a binary representation of the VM capabilities in string.
90 // This string respresentation simplifies the implementation of the client side
91 // to parse the value.
92 char capabilities[65];
93 size_t len = sizeof(capabilities);
94 memset((void*) capabilities, '0', len);
95 capabilities[len-1] = '\0';
96 capabilities[0] = AttachListener::is_attach_supported() ? '1' : '0';
97 #ifdef KERNEL
98 capabilities[1] = '1';
99 #endif // KERNEL
100 PerfDataManager::create_string_constant(SUN_RT, "jvmCapabilities",
101 capabilities, CHECK);
102 }
103 }
104
105 void RuntimeService::record_safepoint_begin() {
106 HS_DTRACE_PROBE(hs_private, safepoint__begin);
107 // update the time stamp to begin recording safepoint time
108 _safepoint_timer.update();
109 if (UsePerfData) {
110 _total_safepoints->inc();
111 if (_app_timer.is_updated()) {
112 _application_time_ticks->inc(_app_timer.ticks_since_update());
113 }
114 }
115 }
116
117 void RuntimeService::record_safepoint_synchronized() {
118 if (UsePerfData) {
119 _sync_time_ticks->inc(_safepoint_timer.ticks_since_update());
120 }
121 }
122
123 void RuntimeService::record_safepoint_end() {
124 HS_DTRACE_PROBE(hs_private, safepoint__end);
125 // update the time stamp to begin recording app time
126 _app_timer.update();
127 if (UsePerfData) {
128 _safepoint_time_ticks->inc(_safepoint_timer.ticks_since_update());
129 }
130 }
131
132 void RuntimeService::record_application_start() {
133 // update the time stamp to begin recording app time
134 _app_timer.update();
135 }
136
137 // Don't need to record application end because we currently
138 // exit at a safepoint and record_safepoint_begin() handles updating
139 // the application time counter at VM exit.
140
141 jlong RuntimeService::safepoint_sync_time_ms() {
142 return UsePerfData ?
143 Management::ticks_to_ms(_sync_time_ticks->get_value()) : -1;
144 }
145
146 jlong RuntimeService::safepoint_count() {
147 return UsePerfData ?
148 _total_safepoints->get_value() : -1;
149 }
150 jlong RuntimeService::safepoint_time_ms() {
151 return UsePerfData ?
152 Management::ticks_to_ms(_safepoint_time_ticks->get_value()) : -1;
153 }
154
155 jlong RuntimeService::application_time_ms() {
156 return UsePerfData ?
157 Management::ticks_to_ms(_application_time_ticks->get_value()) : -1;
158 }
159
160 void RuntimeService::record_interrupted_before_count() {
161 if (UsePerfData) {
162 _interrupted_before_count->inc();
163 }
164 }
165
166 void RuntimeService::record_interrupted_during_count() {
167 if (UsePerfData) {
168 _interrupted_during_count->inc();
169 }
170 }
171
172 void RuntimeService::record_thread_interrupt_signaled_count() {
173 if (UsePerfData) {
174 _thread_interrupt_signaled_count->inc();
175 }
176 }