/*
* Copyright ( c ) 2013 , 2022 , 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 .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*
*/
#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);
}
Messung V0.5 in Prozent C=100 H=100 G=100
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-05)
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