jdk8-mips64-public/hotspot: src/share/vm/utilities/ticks.cpp@b985cbb00e68

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

     1 /*

     2  * Copyright (c) 2013, 2018, 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  */

    25 #include "precompiled.hpp"

    26 #include "runtime/os.hpp"

    27 #include "utilities/ticks.hpp"

    29 #ifdef X86

    30 #include "rdtsc_x86.hpp"

    31 #endif

    33 template <typename TimeSource, const int unit>

    34 inline double conversion(typename TimeSource::Type& value) {

    35   return (double)value * ((double)unit / (double)TimeSource::frequency());

    36 }

    38 uint64_t ElapsedCounterSource::frequency() {

    39   static const uint64_t freq = (uint64_t)os::elapsed_frequency();

    40   return freq;

    41 }

    43 ElapsedCounterSource::Type ElapsedCounterSource::now() {

    44   return os::elapsed_counter();

    45 }

    47 double ElapsedCounterSource::seconds(Type value) {

    48   return conversion<ElapsedCounterSource, 1>(value);

    49 }

    51 uint64_t ElapsedCounterSource::milliseconds(Type value) {

    52   return (uint64_t)conversion<ElapsedCounterSource, MILLIUNITS>(value);

    53 }

    55 uint64_t ElapsedCounterSource::microseconds(Type value) {

    56   return (uint64_t)conversion<ElapsedCounterSource, MICROUNITS>(value);

    57 }

    59 uint64_t ElapsedCounterSource::nanoseconds(Type value) {

    60   return (uint64_t)conversion<ElapsedCounterSource, NANOUNITS>(value);

    61 }

    63 uint64_t FastUnorderedElapsedCounterSource::frequency() {

    64 #ifdef X86

    65   static bool valid_rdtsc = Rdtsc::initialize();

    66   if (valid_rdtsc) {

    67     static const uint64_t freq = (uint64_t)Rdtsc::frequency();

    68     return freq;

    69   }

    70 #endif

    71   static const uint64_t freq = (uint64_t)os::elapsed_frequency();

    72   return freq;

    73 }

    75 FastUnorderedElapsedCounterSource::Type FastUnorderedElapsedCounterSource::now() {

    76 #ifdef X86

    77   static bool valid_rdtsc = Rdtsc::initialize();

    78   if (valid_rdtsc) {

    79     return Rdtsc::elapsed_counter();

    80   }

    81 #endif

    82   return os::elapsed_counter();

    83 }

    85 double FastUnorderedElapsedCounterSource::seconds(Type value) {

    86   return conversion<FastUnorderedElapsedCounterSource, 1>(value);

    87 }

    89 uint64_t FastUnorderedElapsedCounterSource::milliseconds(Type value) {

    90   return (uint64_t)conversion<FastUnorderedElapsedCounterSource, MILLIUNITS>(value);

    91 }

    93 uint64_t FastUnorderedElapsedCounterSource::microseconds(Type value) {

    94   return (uint64_t)conversion<FastUnorderedElapsedCounterSource, MICROUNITS>(value);

    95 }

    97 uint64_t FastUnorderedElapsedCounterSource::nanoseconds(Type value) {

    98   return (uint64_t)conversion<FastUnorderedElapsedCounterSource, NANOUNITS>(value);

    99 }

   101 uint64_t CompositeElapsedCounterSource::frequency() {

   102   return ElapsedCounterSource::frequency();

   103 }

   105 CompositeElapsedCounterSource::Type CompositeElapsedCounterSource::now() {

   106   CompositeTime ct;

   107   ct.val1 = ElapsedCounterSource::now();

   108 #ifdef X86

   109   static bool initialized = false;

   110   static bool valid_rdtsc = false;

   111   if (!initialized) {

   112     valid_rdtsc = Rdtsc::initialize();

   113     initialized = true;

   114   }

   115   if (valid_rdtsc) {

   116     ct.val2 = Rdtsc::elapsed_counter();

   117   }

   118 #endif

   119   return ct;

   120 }

   122 double CompositeElapsedCounterSource::seconds(Type value) {

   123   return conversion<ElapsedCounterSource, 1>(value.val1);

   124 }

   126 uint64_t CompositeElapsedCounterSource::milliseconds(Type value) {

   127   return (uint64_t)conversion<ElapsedCounterSource, MILLIUNITS>(value.val1);

   128 }

   130 uint64_t CompositeElapsedCounterSource::microseconds(Type value) {

   131   return (uint64_t)conversion<ElapsedCounterSource, MICROUNITS>(value.val1);

   132 }

   134 uint64_t CompositeElapsedCounterSource::nanoseconds(Type value) {

   135   return (uint64_t)conversion<ElapsedCounterSource, NANOUNITS>(value.val1);

   136 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/utilities/ticks.cpp@b985cbb00e68

src/share/vm/utilities/ticks.cpp