1 /*
2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jfr/jfrEvents.hpp"
27 #include "jfr/periodic/jfrNetworkUtilization.hpp"
28 #include "jfr/periodic/jfrOSInterface.hpp"
29 #include "memory/allocation.inline.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "runtime/os.hpp"
32 #include "runtime/os_perf.hpp"
33 #include "utilities/ostream.hpp"
34
35 #include <stdlib.h> // for environment variables
36 #ifdef __APPLE__
37 #include <crt_externs.h>
38 #define environ (*_NSGetEnviron())
39 #endif
40
41 #ifndef environ
42 extern char** environ;
43 #endif
44
45 static JfrOSInterface* _instance = NULL;
46
47 JfrOSInterface& JfrOSInterface::instance() {
48 return *_instance;
49 }
50
51 JfrOSInterface* JfrOSInterface::create() {
52 assert(_instance == NULL, "invariant");
53 _instance = new JfrOSInterface();
54 return _instance;
55 }
56
57 void JfrOSInterface::destroy() {
58 JfrNetworkUtilization::destroy();
59 if (_instance != NULL) {
60 delete _instance;
61 _instance = NULL;
62 }
63 }
64
65 class JfrOSInterface::JfrOSInterfaceImpl : public JfrCHeapObj {
66 friend class JfrOSInterface;
67 private:
68 CPUInformationInterface* _cpu_info_interface;
69 CPUPerformanceInterface* _cpu_perf_interface;
70 SystemProcessInterface* _system_process_interface;
71 NetworkPerformanceInterface* _network_performance_interface;
72
73 JfrOSInterfaceImpl();
74 bool initialize();
75 ~JfrOSInterfaceImpl();
76
77 // cpu info
78 int cpu_information(CPUInformation& cpu_info);
79 int cpu_load(int which_logical_cpu, double* cpu_load);
80 int context_switch_rate(double* rate);
81 int cpu_load_total_process(double* cpu_load);
82 int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotal);
83
84 // os information
85 int os_version(char** os_version) const;
86
87 // environment information
88 void generate_environment_variables_events();
89
90 // system processes information
91 int system_processes(SystemProcess** system_processes, int* no_of_sys_processes);
92
93 int network_utilization(NetworkInterface** network_interfaces) const;
94 };
95
96 JfrOSInterface::JfrOSInterfaceImpl::JfrOSInterfaceImpl() : _cpu_info_interface(NULL),
97 _cpu_perf_interface(NULL),
98 _system_process_interface(NULL) {}
99
100 bool JfrOSInterface::JfrOSInterfaceImpl::initialize() {
101 _cpu_info_interface = new CPUInformationInterface();
102 if (!(_cpu_info_interface != NULL && _cpu_info_interface->initialize())) {
103 return false;
104 }
105 _cpu_perf_interface = new CPUPerformanceInterface();
106 if (!(_cpu_perf_interface != NULL && _cpu_perf_interface->initialize())) {
107 return false;
108 }
109 _system_process_interface = new SystemProcessInterface();
110 if (!(_system_process_interface != NULL && _system_process_interface->initialize())) {
111 return false;
112 }
113 _network_performance_interface = new NetworkPerformanceInterface();
114 return _network_performance_interface != NULL && _network_performance_interface->initialize();
115 }
116
117 JfrOSInterface::JfrOSInterfaceImpl::~JfrOSInterfaceImpl(void) {
118 if (_cpu_info_interface != NULL) {
119 delete _cpu_info_interface;
120 _cpu_info_interface = NULL;
121 }
122 if (_cpu_perf_interface != NULL) {
123 delete _cpu_perf_interface;
124 _cpu_perf_interface = NULL;
125 }
126 if (_system_process_interface != NULL) {
127 delete _system_process_interface;
128 _system_process_interface = NULL;
129 }
130 if (_network_performance_interface != NULL) {
131 delete _network_performance_interface;
132 _network_performance_interface = NULL;
133 }
134 }
135
136 int JfrOSInterface::JfrOSInterfaceImpl::cpu_load(int which_logical_cpu, double* cpu_load) {
137 return _cpu_perf_interface->cpu_load(which_logical_cpu, cpu_load);
138 }
139
140 int JfrOSInterface::JfrOSInterfaceImpl::context_switch_rate(double* rate) {
141 return _cpu_perf_interface->context_switch_rate(rate);
142 }
143
144 int JfrOSInterface::JfrOSInterfaceImpl::cpu_load_total_process(double* cpu_load) {
145 return _cpu_perf_interface->cpu_load_total_process(cpu_load);
146 }
147
148 int JfrOSInterface::JfrOSInterfaceImpl::cpu_loads_process(double* pjvmUserLoad,
149 double* pjvmKernelLoad,
150 double* psystemTotal) {
151 return _cpu_perf_interface->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotal);
152 }
153
154 int JfrOSInterface::JfrOSInterfaceImpl::cpu_information(CPUInformation& cpu_info) {
155 return _cpu_info_interface->cpu_information(cpu_info);
156 }
157
158 int JfrOSInterface::JfrOSInterfaceImpl::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) {
159 assert(system_processes != NULL, "system_processes pointer is NULL!");
160 assert(no_of_sys_processes != NULL, "no_of_sys_processes pointer is NULL!");
161 return _system_process_interface->system_processes(system_processes, no_of_sys_processes);
162 }
163
164 int JfrOSInterface::JfrOSInterfaceImpl::network_utilization(NetworkInterface** network_interfaces) const {
165 return _network_performance_interface->network_utilization(network_interfaces);
166 }
167
168 // assigned char* is RESOURCE_HEAP_ALLOCATED
169 // caller need to ensure proper ResourceMark placement.
170 int JfrOSInterface::JfrOSInterfaceImpl::os_version(char** os_version) const {
171 assert(os_version != NULL, "os_version pointer is NULL!");
172 stringStream os_ver_info;
173 os::print_os_info_brief(&os_ver_info);
174 *os_version = os_ver_info.as_string();
175 return OS_OK;
176 }
177
178 JfrOSInterface::JfrOSInterface() {
179 _impl = NULL;
180 }
181
182 bool JfrOSInterface::initialize() {
183 _impl = new JfrOSInterface::JfrOSInterfaceImpl();
184 return _impl != NULL && _impl->initialize();
185 }
186
187 JfrOSInterface::~JfrOSInterface() {
188 if (_impl != NULL) {
189 delete _impl;
190 _impl = NULL;
191 }
192 }
193
194 int JfrOSInterface::cpu_information(CPUInformation& cpu_info) {
195 return instance()._impl->cpu_information(cpu_info);
196 }
197
198 int JfrOSInterface::cpu_load(int which_logical_cpu, double* cpu_load) {
199 return instance()._impl->cpu_load(which_logical_cpu, cpu_load);
200 }
201
202 int JfrOSInterface::context_switch_rate(double* rate) {
203 return instance()._impl->context_switch_rate(rate);
204 }
205
206 int JfrOSInterface::cpu_load_total_process(double* cpu_load) {
207 return instance()._impl->cpu_load_total_process(cpu_load);
208 }
209
210 int JfrOSInterface::cpu_loads_process(double* jvm_user_load, double* jvm_kernel_load, double* system_total_load){
211 return instance()._impl->cpu_loads_process(jvm_user_load, jvm_kernel_load, system_total_load);
212 }
213
214 int JfrOSInterface::os_version(char** os_version) {
215 return instance()._impl->os_version(os_version);
216 }
217
218 const char* JfrOSInterface::virtualization_name() {
219 VirtualizationType vrt = VM_Version::get_detected_virtualization();
220 if (vrt == XenHVM) {
221 return "Xen hardware-assisted virtualization";
222 } else if (vrt == KVM) {
223 return "KVM virtualization";
224 } else if (vrt == VMWare) {
225 return "VMWare virtualization";
226 } else if (vrt == HyperV) {
227 return "HyperV virtualization";
228 } else if (vrt == PowerVM) {
229 return "PowerVM virtualization";
230 } else if (vrt == PowerKVM) {
231 return "Power KVM virtualization";
232 } else if (vrt == PowerFullPartitionMode) {
233 return "Power full partition";
234 }
235
236 return "No virtualization detected";
237 }
238
239 int JfrOSInterface::generate_initial_environment_variable_events() {
240 if (environ == NULL) {
241 return OS_ERR;
242 }
243
244 if (EventInitialEnvironmentVariable::is_enabled()) {
245 // One time stamp for all events, so they can be grouped together
246 JfrTicks time_stamp = JfrTicks::now();
247 for (char** p = environ; *p != NULL; p++) {
248 char* variable = *p;
249 char* equal_sign = strchr(variable, '=');
250 if (equal_sign != NULL) {
251 // Extract key/value
252 ResourceMark rm;
253 ptrdiff_t key_length = equal_sign - variable;
254 char* key = NEW_RESOURCE_ARRAY(char, key_length + 1);
255 char* value = equal_sign + 1;
256 strncpy(key, variable, key_length);
257 key[key_length] = '\0';
258 EventInitialEnvironmentVariable event(UNTIMED);
259 event.set_endtime(time_stamp);
260 event.set_key(key);
261 event.set_value(value);
262 event.commit();
263 }
264 }
265 }
266 return OS_OK;
267 }
268
269 int JfrOSInterface::system_processes(SystemProcess** sys_processes, int* no_of_sys_processes) {
270 return instance()._impl->system_processes(sys_processes, no_of_sys_processes);
271 }
272
273 int JfrOSInterface::network_utilization(NetworkInterface** network_interfaces) {
274 return instance()._impl->network_utilization(network_interfaces);
275 }