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 "classfile/systemDictionary.hpp"
27 #include "code/codeCache.hpp"
28 #include "gc/shared/collectedHeap.inline.hpp"
29 #include "gc/shared/generation.hpp"
30 #include "interpreter/oopMapCache.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "runtime/handles.inline.hpp"
33 #include "runtime/jniHandles.hpp"
34 #include "runtime/memprofiler.hpp"
35 #include "runtime/mutexLocker.hpp"
36 #include "runtime/os.hpp"
37 #include "runtime/task.hpp"
38 #include "runtime/thread.inline.hpp"
39 #include "runtime/vmThread.hpp"
40
41 #ifndef PRODUCT
42
43 // --------------------------------------------------------
44 // MemProfilerTask
45
46 class MemProfilerTask : public PeriodicTask {
47 public:
48 MemProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
49 void task();
50 };
51
52
53 void MemProfilerTask::task() {
54 // Get thread lock to provide mutual exclusion, and so we can iterate safely over the thread list.
55 MutexLocker mu(Threads_lock);
56 MemProfiler::do_trace();
57 }
58
92 if (!is_active()) return;
93 // Do one last trace at disengage time
94 do_trace();
95
96 // Close logfile
97 fprintf(_log_fp, "MemProfiler detached\n");
98 fclose(_log_fp);
99
100 // remove MemProfilerTask
101 assert(_task != NULL, "sanity check");
102 _task->disenroll();
103 delete _task;
104 _task = NULL;
105 }
106
107
108 void MemProfiler::do_trace() {
109 // Calculate thread local sizes
110 size_t handles_memory_usage = VMThread::vm_thread()->handle_area()->size_in_bytes();
111 size_t resource_memory_usage = VMThread::vm_thread()->resource_area()->size_in_bytes();
112 JavaThread *cur = Threads::first();
113 while (cur != NULL) {
114 handles_memory_usage += cur->handle_area()->size_in_bytes();
115 resource_memory_usage += cur->resource_area()->size_in_bytes();
116 cur = cur->next();
117 }
118
119 // Print trace line in log
120 fprintf(_log_fp, "%6.1f,%5d,%5d," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",",
121 os::elapsedTime(),
122 Threads::number_of_threads(),
123 InstanceKlass::number_of_instance_classes(),
124 Universe::heap()->used() / K,
125 Universe::heap()->capacity() / K);
126
127 fprintf(_log_fp, UINTX_FORMAT_W(6) ",", CodeCache::capacity() / K);
128
129 fprintf(_log_fp, UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",%6ld\n",
130 handles_memory_usage / K,
131 resource_memory_usage / K,
132 0L);
133 fflush(_log_fp);
134 }
135
136 #endif
|
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 "classfile/systemDictionary.hpp"
27 #include "code/codeCache.hpp"
28 #include "gc/shared/collectedHeap.inline.hpp"
29 #include "gc/shared/generation.hpp"
30 #include "interpreter/oopMapCache.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "runtime/handles.inline.hpp"
33 #include "runtime/jniHandles.hpp"
34 #include "runtime/memprofiler.hpp"
35 #include "runtime/mutexLocker.hpp"
36 #include "runtime/os.hpp"
37 #include "runtime/task.hpp"
38 #include "runtime/thread.inline.hpp"
39 #include "runtime/threadSMR.hpp"
40 #include "runtime/vmThread.hpp"
41
42 #ifndef PRODUCT
43
44 // --------------------------------------------------------
45 // MemProfilerTask
46
47 class MemProfilerTask : public PeriodicTask {
48 public:
49 MemProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
50 void task();
51 };
52
53
54 void MemProfilerTask::task() {
55 // Get thread lock to provide mutual exclusion, and so we can iterate safely over the thread list.
56 MutexLocker mu(Threads_lock);
57 MemProfiler::do_trace();
58 }
59
93 if (!is_active()) return;
94 // Do one last trace at disengage time
95 do_trace();
96
97 // Close logfile
98 fprintf(_log_fp, "MemProfiler detached\n");
99 fclose(_log_fp);
100
101 // remove MemProfilerTask
102 assert(_task != NULL, "sanity check");
103 _task->disenroll();
104 delete _task;
105 _task = NULL;
106 }
107
108
109 void MemProfiler::do_trace() {
110 // Calculate thread local sizes
111 size_t handles_memory_usage = VMThread::vm_thread()->handle_area()->size_in_bytes();
112 size_t resource_memory_usage = VMThread::vm_thread()->resource_area()->size_in_bytes();
113 {
114 JavaThreadIteratorWithHandle jtiwh;
115 for (; JavaThread *cur = jtiwh.next(); ) {
116 handles_memory_usage += cur->handle_area()->size_in_bytes();
117 resource_memory_usage += cur->resource_area()->size_in_bytes();
118 }
119
120 // Print trace line in log
121 fprintf(_log_fp, "%6.1f,%5d,%5d," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",",
122 os::elapsedTime(),
123 jtiwh.length(),
124 InstanceKlass::number_of_instance_classes(),
125 Universe::heap()->used() / K,
126 Universe::heap()->capacity() / K);
127 }
128
129 fprintf(_log_fp, UINTX_FORMAT_W(6) ",", CodeCache::capacity() / K);
130
131 fprintf(_log_fp, UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",%6ld\n",
132 handles_memory_usage / K,
133 resource_memory_usage / K,
134 0L);
135 fflush(_log_fp);
136 }
137
138 #endif
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