1 /*
2 * Copyright (c) 2013, 2014 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
26 #include "precompiled.hpp"
27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
28 #include "gc_implementation/g1/g1GCPhaseTimes.hpp"
29 #include "gc_implementation/g1/g1Log.hpp"
30 #include "gc_implementation/g1/g1StringDedup.hpp"
31 #include "runtime/atomic.inline.hpp"
32 #include "g1CollectedHeap.hpp"
33
34 // Helper class for avoiding interleaved logging
35 class LineBuffer: public StackObj {
36
37 private:
38 static const int BUFFER_LEN = 1024;
39 static const int INDENT_CHARS = 3;
40 char _buffer[BUFFER_LEN];
41 int _indent_level;
42 int _cur;
43
44 void vappend(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0) {
45 int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap);
46 if (res != -1) {
47 _cur += res;
48 } else {
49 DEBUG_ONLY(warning("buffer too small in LineBuffer");)
50 _buffer[BUFFER_LEN -1] = 0;
51 _cur = BUFFER_LEN; // vsnprintf above should not add to _buffer if we are called again
52 }
129 // for things like the start and end times the sum is not
130 // that relevant
131 buf.append(", Sum: ");
132 buf.append(_print_format, sum);
133 }
134 buf.append_and_print_cr("]");
135 }
136 PRAGMA_DIAG_POP
137
138 #ifndef PRODUCT
139
140 template <> const int WorkerDataArray<int>::_uninitialized = -1;
141 template <> const double WorkerDataArray<double>::_uninitialized = -1.0;
142 template <> const size_t WorkerDataArray<size_t>::_uninitialized = (size_t)-1;
143
144 template <class T>
145 void WorkerDataArray<T>::reset() {
146 for (uint i = 0; i < _length; i++) {
147 _data[i] = (T)_uninitialized;
148 }
149 _has_new_data = true;
150 }
151
152 template <class T>
153 void WorkerDataArray<T>::verify() {
154 for (uint i = 0; i < _length; i++) {
155 assert(_data[i] != _uninitialized,
156 err_msg("Invalid data for worker %u, data: %lf, uninitialized: %lf",
157 i, (double)_data[i], (double)_uninitialized));
158 }
159 }
160
161 #endif
162
163 G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads, uint num_ext_root_scan_phases) :
164 _max_gc_threads(max_gc_threads),
165 _num_ext_root_scan_phases(num_ext_root_scan_phases),
166 _last_gc_worker_start_times_ms(_max_gc_threads, "%.1lf", false),
167 _last_ext_root_scan_times_ms(_max_gc_threads, "%.1lf"),
168 _last_ext_root_scan_phase_times_ms(NULL),
169 _last_satb_filtering_times_ms(_max_gc_threads, "%.1lf"),
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1 /*
2 * Copyright (c) 2013, 2015 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
26 #include "precompiled.hpp"
27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
28 #include "gc_implementation/g1/g1GCPhaseTimes.hpp"
29 #include "gc_implementation/g1/g1Log.hpp"
30 #include "gc_implementation/g1/g1StringDedup.hpp"
31 #include "runtime/atomic.inline.hpp"
32
33 // Helper class for avoiding interleaved logging
34 class LineBuffer: public StackObj {
35
36 private:
37 static const int BUFFER_LEN = 1024;
38 static const int INDENT_CHARS = 3;
39 char _buffer[BUFFER_LEN];
40 int _indent_level;
41 int _cur;
42
43 void vappend(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0) {
44 int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap);
45 if (res != -1) {
46 _cur += res;
47 } else {
48 DEBUG_ONLY(warning("buffer too small in LineBuffer");)
49 _buffer[BUFFER_LEN -1] = 0;
50 _cur = BUFFER_LEN; // vsnprintf above should not add to _buffer if we are called again
51 }
128 // for things like the start and end times the sum is not
129 // that relevant
130 buf.append(", Sum: ");
131 buf.append(_print_format, sum);
132 }
133 buf.append_and_print_cr("]");
134 }
135 PRAGMA_DIAG_POP
136
137 #ifndef PRODUCT
138
139 template <> const int WorkerDataArray<int>::_uninitialized = -1;
140 template <> const double WorkerDataArray<double>::_uninitialized = -1.0;
141 template <> const size_t WorkerDataArray<size_t>::_uninitialized = (size_t)-1;
142
143 template <class T>
144 void WorkerDataArray<T>::reset() {
145 for (uint i = 0; i < _length; i++) {
146 _data[i] = (T)_uninitialized;
147 }
148 }
149
150 template <class T>
151 void WorkerDataArray<T>::verify() {
152 for (uint i = 0; i < _length; i++) {
153 assert(_data[i] != _uninitialized,
154 err_msg("Invalid data for worker %u, data: %lf, uninitialized: %lf",
155 i, (double)_data[i], (double)_uninitialized));
156 }
157 }
158
159 #endif
160
161 G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads, uint num_ext_root_scan_phases) :
162 _max_gc_threads(max_gc_threads),
163 _num_ext_root_scan_phases(num_ext_root_scan_phases),
164 _last_gc_worker_start_times_ms(_max_gc_threads, "%.1lf", false),
165 _last_ext_root_scan_times_ms(_max_gc_threads, "%.1lf"),
166 _last_ext_root_scan_phase_times_ms(NULL),
167 _last_satb_filtering_times_ms(_max_gc_threads, "%.1lf"),
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