1 /*
2 * Copyright (c) 1997, 2016, 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 "logging/log.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/timer.hpp"
29 #include "utilities/ostream.hpp"
30
31 double TimeHelper::counter_to_seconds(jlong counter) {
32 double freq = (double) os::elapsed_frequency();
33 return counter / freq;
34 }
35
36 double TimeHelper::counter_to_millis(jlong counter) {
37 return counter_to_seconds(counter) * 1000.0;
38 }
39
40 elapsedTimer::elapsedTimer(jlong time, jlong timeUnitsPerSecond) {
41 _active = false;
42 jlong osTimeUnitsPerSecond = os::elapsed_frequency();
43 assert(osTimeUnitsPerSecond % 1000 == 0, "must be");
44 assert(timeUnitsPerSecond % 1000 == 0, "must be");
45 while (osTimeUnitsPerSecond < timeUnitsPerSecond) {
46 timeUnitsPerSecond /= 1000;
47 time *= 1000;
48 }
49 while (osTimeUnitsPerSecond > timeUnitsPerSecond) {
50 timeUnitsPerSecond *= 1000;
51 time /= 1000;
52 }
53 _counter = time;
54 }
55
56 void elapsedTimer::add(elapsedTimer t) {
57 _counter += t._counter;
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1 /*
2 * Copyright (c) 1997, 2017, 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 "logging/log.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/timer.hpp"
29 #include "utilities/ostream.hpp"
30
31 double TimeHelper::counter_to_seconds(jlong counter) {
32 double freq = (double) os::elapsed_frequency();
33 return counter / freq;
34 }
35
36 double TimeHelper::counter_to_millis(jlong counter) {
37 return counter_to_seconds(counter) * 1000.0;
38 }
39
40 jlong TimeHelper::millis_to_counter(jlong millis) {
41 jlong freq = os::elapsed_frequency() / MILLIUNITS;
42 return millis * freq;
43 }
44
45 elapsedTimer::elapsedTimer(jlong time, jlong timeUnitsPerSecond) {
46 _active = false;
47 jlong osTimeUnitsPerSecond = os::elapsed_frequency();
48 assert(osTimeUnitsPerSecond % 1000 == 0, "must be");
49 assert(timeUnitsPerSecond % 1000 == 0, "must be");
50 while (osTimeUnitsPerSecond < timeUnitsPerSecond) {
51 timeUnitsPerSecond /= 1000;
52 time *= 1000;
53 }
54 while (osTimeUnitsPerSecond > timeUnitsPerSecond) {
55 timeUnitsPerSecond *= 1000;
56 time /= 1000;
57 }
58 _counter = time;
59 }
60
61 void elapsedTimer::add(elapsedTimer t) {
62 _counter += t._counter;
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