view src/share/vm/utilities/ticks.inline.hpp @ 20543:e7d0505c8a30

8059758: Footprint regressions with JDK-8038423 Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything. Reviewed-by: jwilhelm, brutisso
author tschatzl
date Fri, 10 Oct 2014 15:51:58 +0200
parents 86e6d691f2e1
children
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/*
 * 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.
 *
 * 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
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 */

#ifndef SHARE_VM_UTILITIES_TICKS_INLINE_HPP
#define SHARE_VM_UTILITIES_TICKS_INLINE_HPP

#include "utilities/ticks.hpp"

inline Tickspan operator+(Tickspan lhs, const Tickspan& rhs) {
  lhs += rhs;
  return lhs;
}

inline bool operator==(const Tickspan& lhs, const Tickspan& rhs) {
  return lhs.value() == rhs.value();
}

inline bool operator!=(const Tickspan& lhs, const Tickspan& rhs) {
  return !operator==(lhs,rhs);
}

inline bool operator<(const Tickspan& lhs, const Tickspan& rhs) {
  return lhs.value() < rhs.value();
}

inline bool operator>(const Tickspan& lhs, const Tickspan& rhs) {
  return operator<(rhs,lhs);
}

inline bool operator<=(const Tickspan& lhs, const Tickspan& rhs) {
  return !operator>(lhs,rhs);
}

inline bool operator>=(const Tickspan& lhs, const Tickspan& rhs) {
  return !operator<(lhs,rhs);
}

inline Ticks operator+(Ticks lhs, const Tickspan& span) {
  lhs += span;
  return lhs;
}

inline Ticks operator-(Ticks lhs, const Tickspan& span) {
  lhs -= span;
  return lhs;
}

inline Tickspan operator-(const Ticks& end, const Ticks& start) {
  return Tickspan(end, start);
}

inline bool operator==(const Ticks& lhs, const Ticks& rhs) {
  return lhs.value() == rhs.value();
}

inline bool operator!=(const Ticks& lhs, const Ticks& rhs) {
  return !operator==(lhs,rhs);
}

inline bool operator<(const Ticks& lhs, const Ticks& rhs) {
  return lhs.value() < rhs.value();
}

inline bool operator>(const Ticks& lhs, const Ticks& rhs) {
  return operator<(rhs,lhs);
}

inline bool operator<=(const Ticks& lhs, const Ticks& rhs) {
  return !operator>(lhs,rhs);
}

inline bool operator>=(const Ticks& lhs, const Ticks& rhs) {
  return !operator<(lhs,rhs);
}

#endif // SHARE_VM_UTILITIES_TICKS_INLINE_HPP