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src/share/vm/utilities/ticks.cpp

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*** 1,7 **** /* ! * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. --- 1,7 ---- /* ! * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.
*** 22,68 **** * */ #include "precompiled.hpp" #include "runtime/os.hpp" ! #include "utilities/ticks.inline.hpp" ! #ifdef ASSERT ! const jlong Ticks::invalid_time_stamp = -2; // 0xFFFF FFFF`FFFF FFFE #endif ! void Ticks::stamp() { ! _stamp_ticks = os::elapsed_counter(); } ! const Ticks Ticks::now() { ! Ticks t; ! t.stamp(); ! return t; } ! Tickspan::Tickspan(const Ticks& end, const Ticks& start) { ! assert(end.value() != Ticks::invalid_time_stamp, "end is unstamped!"); ! assert(start.value() != Ticks::invalid_time_stamp, "start is unstamped!"); ! assert(end >= start, "negative time!"); ! _span_ticks = end.value() - start.value(); } ! template <typename ReturnType> ! static ReturnType time_conversion(const Tickspan& span, TicksToTimeHelper::Unit unit) { ! assert(TicksToTimeHelper::SECONDS == unit || ! TicksToTimeHelper::MILLISECONDS == unit, "invalid unit!"); ! ReturnType frequency_per_unit = (ReturnType)os::elapsed_frequency() / (ReturnType)unit; ! return (ReturnType) ((ReturnType)span.value() / frequency_per_unit); } ! double TicksToTimeHelper::seconds(const Tickspan& span) { ! return time_conversion<double>(span, SECONDS); } ! jlong TicksToTimeHelper::milliseconds(const Tickspan& span) { ! return time_conversion<jlong>(span, MILLISECONDS); } --- 22,136 ---- * */ #include "precompiled.hpp" #include "runtime/os.hpp" ! #include "utilities/ticks.hpp" ! #if defined(X86) && !defined(ZERO) ! #include "rdtsc_x86.hpp" #endif ! template <typename TimeSource, const int unit> ! inline double conversion(typename TimeSource::Type& value) { ! return (double)value * ((double)unit / (double)TimeSource::frequency()); } ! uint64_t ElapsedCounterSource::frequency() { ! static const uint64_t freq = (uint64_t)os::elapsed_frequency(); ! return freq; } ! ElapsedCounterSource::Type ElapsedCounterSource::now() { ! return os::elapsed_counter(); ! } ! ! double ElapsedCounterSource::seconds(Type value) { ! return conversion<ElapsedCounterSource, 1>(value); ! } ! uint64_t ElapsedCounterSource::milliseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, MILLIUNITS>(value); ! } ! uint64_t ElapsedCounterSource::microseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, MICROUNITS>(value); } ! uint64_t ElapsedCounterSource::nanoseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, NANOUNITS>(value); ! } ! ! uint64_t FastUnorderedElapsedCounterSource::frequency() { ! #if defined(X86) && !defined(ZERO) ! static bool valid_rdtsc = Rdtsc::initialize(); ! if (valid_rdtsc) { ! static const uint64_t freq = (uint64_t)Rdtsc::frequency(); ! return freq; ! } ! #endif ! static const uint64_t freq = (uint64_t)os::elapsed_frequency(); ! return freq; ! } ! ! FastUnorderedElapsedCounterSource::Type FastUnorderedElapsedCounterSource::now() { ! #if defined(X86) && !defined(ZERO) ! static bool valid_rdtsc = Rdtsc::initialize(); ! if (valid_rdtsc) { ! return Rdtsc::elapsed_counter(); ! } ! #endif ! return os::elapsed_counter(); ! } ! ! double FastUnorderedElapsedCounterSource::seconds(Type value) { ! return conversion<FastUnorderedElapsedCounterSource, 1>(value); ! } ! uint64_t FastUnorderedElapsedCounterSource::milliseconds(Type value) { ! return (uint64_t)conversion<FastUnorderedElapsedCounterSource, MILLIUNITS>(value); ! } ! ! uint64_t FastUnorderedElapsedCounterSource::microseconds(Type value) { ! return (uint64_t)conversion<FastUnorderedElapsedCounterSource, MICROUNITS>(value); ! } ! ! uint64_t FastUnorderedElapsedCounterSource::nanoseconds(Type value) { ! return (uint64_t)conversion<FastUnorderedElapsedCounterSource, NANOUNITS>(value); ! } ! ! uint64_t CompositeElapsedCounterSource::frequency() { ! return ElapsedCounterSource::frequency(); ! } ! ! CompositeElapsedCounterSource::Type CompositeElapsedCounterSource::now() { ! CompositeTime ct; ! ct.val1 = ElapsedCounterSource::now(); ! #if defined(X86) && !defined(ZERO) ! static bool initialized = false; ! static bool valid_rdtsc = false; ! if (!initialized) { ! valid_rdtsc = Rdtsc::initialize(); ! initialized = true; ! } ! if (valid_rdtsc) { ! ct.val2 = Rdtsc::elapsed_counter(); ! } ! #endif ! return ct; ! } ! ! double CompositeElapsedCounterSource::seconds(Type value) { ! return conversion<ElapsedCounterSource, 1>(value.val1); ! } ! uint64_t CompositeElapsedCounterSource::milliseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, MILLIUNITS>(value.val1); } ! uint64_t CompositeElapsedCounterSource::microseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, MICROUNITS>(value.val1); } ! uint64_t CompositeElapsedCounterSource::nanoseconds(Type value) { ! return (uint64_t)conversion<ElapsedCounterSource, NANOUNITS>(value.val1); }
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