--- old/src/share/vm/gc/g1/g1ErgoVerbose.hpp 2015-11-19 15:35:40.558128102 +0100 +++ /dev/null 2015-08-17 09:33:10.330134408 +0200 @@ -1,203 +0,0 @@ -/* - * Copyright (c) 2011, 2015, 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_GC_G1_G1ERGOVERBOSE_HPP -#define SHARE_VM_GC_G1_G1ERGOVERBOSE_HPP - -#include "memory/allocation.hpp" -#include "utilities/debug.hpp" - -// The log of G1's heuristic decisions comprises of a series of -// records which have a similar format in order to maintain -// consistency across records and ultimately easier parsing of the -// output, if we ever choose to do that. Each record consists of: -// * A time stamp to be able to easily correlate each record with -// other events. -// * A unique string to allow us to easily identify such records. -// * The name of the heuristic the record corresponds to. -// * An action string which describes the action that G1 did or is -// about to do. -// * An optional reason string which describes the reason for the -// action. -// * An optional number of name/value pairs which contributed to the -// decision to take the action described in the record. -// -// Each record is associated with a "tag" which is the combination of -// the heuristic the record corresponds to, as well as the min level -// of verboseness at which the record should be printed. The tag is -// checked against the current settings to determine whether the record -// should be printed or not. - -// The available verboseness levels. -typedef enum { - // Determine which part of the tag is occupied by the level. - ErgoLevelShift = 8, - ErgoLevelMask = ~((1 << ErgoLevelShift) - 1), - - // ErgoLow is 0 so that we don't have to explicitly or a heuristic - // id with ErgoLow to keep its use simpler. - ErgoLow = 0, - ErgoHigh = 1 << ErgoLevelShift -} ErgoLevel; - -// The available heuristics. -typedef enum { - // Determines which part of the tag is occupied by the heuristic id. - ErgoHeuristicMask = ~ErgoLevelMask, - - ErgoHeapSizing = 0, - ErgoCSetConstruction, - ErgoConcCycles, - ErgoMixedGCs, - ErgoTiming, - - ErgoHeuristicNum -} ErgoHeuristic; - -class G1ErgoVerbose : AllStatic { -private: - // Determines the minimum verboseness level at which records will be - // printed. - static ErgoLevel _level; - // Determines which heuristics are currently enabled. - static bool _enabled[ErgoHeuristicNum]; - - static ErgoLevel extract_level(int tag) { - return (ErgoLevel) (tag & ErgoLevelMask); - } - - static ErgoHeuristic extract_heuristic(int tag) { - return (ErgoHeuristic) (tag & ErgoHeuristicMask); - } - -public: - // Needs to be explicitly called at GC initialization. - static void initialize(); - - static void set_level(ErgoLevel level); - static void set_enabled(ErgoHeuristic h, bool enabled); - // It is applied to all heuristics. - static void set_enabled(bool enabled); - - static bool enabled(int tag) { - ErgoLevel level = extract_level(tag); - ErgoHeuristic n = extract_heuristic(tag); - return level <= _level && _enabled[n]; - } - - // Extract the heuristic id from the tag and return a string with - // its name. - static const char* to_string(int tag); -}; - -// The macros below generate the format string for values of different -// types and/or metrics. - -// The reason for the action is optional and is handled specially: the -// reason string is concatenated here so it's not necessary to pass it -// as a parameter. -#define ergo_format_reason(_reason_) ", reason: " _reason_ - -// Single parameter format strings -#define ergo_format_str(_name_) ", " _name_ ": %s" -#define ergo_format_region(_name_) ", " _name_ ": %u regions" -#define ergo_format_byte(_name_) ", " _name_ ": " SIZE_FORMAT " bytes" -#define ergo_format_double(_name_) ", " _name_ ": %1.2f" -#define ergo_format_perc(_name_) ", " _name_ ": %1.2f %%" -#define ergo_format_ms(_name_) ", " _name_ ": %1.2f ms" -#define ergo_format_size(_name_) ", " _name_ ": " SIZE_FORMAT - -// Double parameter format strings -#define ergo_format_byte_perc(_name_) \ - ", " _name_ ": " SIZE_FORMAT " bytes (%1.2f %%)" - -// Generates the format string -#define ergo_format(_extra_format_) \ - " %1.3f: [G1Ergonomics (%s) %s" _extra_format_ "]" - -// Conditionally, prints an ergonomic decision record. _extra_format_ -// is the format string for the optional items we'd like to print -// (i.e., the decision's reason and any associated values). This -// string should be built up using the ergo_*_format macros (see -// above) to ensure consistency. -// -// Since we cannot rely on the compiler supporting variable argument -// macros, this macro accepts a fixed number of arguments and passes -// them to the print method. For convenience, we have wrapper macros -// below which take a specific number of arguments and set the rest to -// a default value. -#define ergo_verbose_common(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_, _arg3_, _arg4_, _arg5_) \ - do { \ - if (G1ErgoVerbose::enabled((_tag_))) { \ - gclog_or_tty->print_cr(ergo_format(_extra_format_), \ - os::elapsedTime(), \ - G1ErgoVerbose::to_string((_tag_)), \ - (_action_), \ - (_arg0_), (_arg1_), (_arg2_), \ - (_arg3_), (_arg4_), (_arg5_)); \ - } \ - } while (0) - - -#define ergo_verbose6(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_, _arg3_, _arg4_, _arg5_) \ - ergo_verbose_common(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_, _arg3_, _arg4_, _arg5_) - -#define ergo_verbose5(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_, _arg3_, _arg4_) \ - ergo_verbose6(_tag_, _action_, _extra_format_ "%s", \ - _arg0_, _arg1_, _arg2_, _arg3_, _arg4_, "") - -#define ergo_verbose4(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_, _arg3_) \ - ergo_verbose5(_tag_, _action_, _extra_format_ "%s", \ - _arg0_, _arg1_, _arg2_, _arg3_, "") - -#define ergo_verbose3(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_, _arg2_) \ - ergo_verbose4(_tag_, _action_, _extra_format_ "%s", \ - _arg0_, _arg1_, _arg2_, "") - -#define ergo_verbose2(_tag_, _action_, _extra_format_, \ - _arg0_, _arg1_) \ - ergo_verbose3(_tag_, _action_, _extra_format_ "%s", \ - _arg0_, _arg1_, "") - -#define ergo_verbose1(_tag_, _action_, _extra_format_, \ - _arg0_) \ - ergo_verbose2(_tag_, _action_, _extra_format_ "%s", \ - _arg0_, "") - - -#define ergo_verbose0(_tag_, _action_, _extra_format_) \ - ergo_verbose1(_tag_, _action_, _extra_format_ "%s", \ - "") - -#define ergo_verbose(_tag_, _action_) \ - ergo_verbose0(_tag_, _action_, "") - - -#endif // SHARE_VM_GC_G1_G1ERGOVERBOSE_HPP