Mercurial > hg > graal-compiler
view src/share/vm/runtime/timer.hpp @ 20578:f31986da9319
8054530: C2: assert(res == old_res) failed: Inconsistency between old and new
Summary: Fixed signedness problem with assertion.
Reviewed-by: kvn
author | morris |
---|---|
date | Wed, 13 Aug 2014 13:00:53 -0700 |
parents | f2110083203d |
children | c0b0974dd509 |
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/* * Copyright (c) 1997, 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. * * 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. * */ #ifndef SHARE_VM_RUNTIME_TIMER_HPP #define SHARE_VM_RUNTIME_TIMER_HPP #include "utilities/globalDefinitions.hpp" // Timers for simple measurement. class elapsedTimer VALUE_OBJ_CLASS_SPEC { friend class VMStructs; private: jlong _counter; jlong _start_counter; bool _active; public: elapsedTimer() { _active = false; reset(); } void add(elapsedTimer t); void start(); void stop(); void reset() { _counter = 0; } double seconds() const; jlong milliseconds() const; jlong ticks() const { return _counter; } jlong active_ticks() const; bool is_active() const { return _active; } }; // TimeStamp is used for recording when an event took place. class TimeStamp VALUE_OBJ_CLASS_SPEC { private: jlong _counter; public: TimeStamp() { _counter = 0; } void clear() { _counter = 0; } // has the timestamp been updated since being created or cleared? bool is_updated() const { return _counter != 0; } // update to current elapsed time void update(); // update to given elapsed time void update_to(jlong ticks); // returns seconds since updated // (must not be in a cleared state: must have been previously updated) double seconds() const; jlong milliseconds() const; // ticks elapsed between VM start and last update jlong ticks() const { return _counter; } // ticks elapsed since last update jlong ticks_since_update() const; }; // TraceTime is used for tracing the execution time of a block // Usage: // { TraceTime t("block time") // some_code(); // } // class TraceTime: public StackObj { private: bool _active; // do timing bool _verbose; // report every timing elapsedTimer _t; // timer elapsedTimer* _accum; // accumulator public: // Constructors TraceTime(const char* title, bool doit = true); TraceTime(const char* title, elapsedTimer* accumulator, bool doit = true, bool verbose = false); ~TraceTime(); // Accessors void set_verbose(bool verbose) { _verbose = verbose; } bool verbose() const { return _verbose; } // Activation void suspend() { if (_active) _t.stop(); } void resume() { if (_active) _t.start(); } }; class TraceCPUTime: public StackObj { private: bool _active; // true if times will be measured and printed bool _print_cr; // if true print carriage return at end double _starting_user_time; // user time at start of measurement double _starting_system_time; // system time at start of measurement double _starting_real_time; // real time at start of measurement outputStream* _logfile; // output is printed to this stream bool _error; // true if an error occurred, turns off output public: TraceCPUTime(bool doit = true, bool print_cr = true, outputStream *logfile = NULL); ~TraceCPUTime(); }; class TimeHelper { public: static double counter_to_seconds(jlong counter); }; #endif // SHARE_VM_RUNTIME_TIMER_HPP