1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_G1_G1STRINGDEDUPSTAT_HPP 26 #define SHARE_VM_GC_G1_G1STRINGDEDUPSTAT_HPP 27 28 #include "memory/allocation.hpp" 29 #include "runtime/os.hpp" 30 31 // Macros for GC log output formating 32 #define G1_STRDEDUP_OBJECTS_FORMAT UINTX_FORMAT_W(12) 33 #define G1_STRDEDUP_TIME_FORMAT "%1.7lf secs" 34 #define G1_STRDEDUP_PERCENT_FORMAT "%5.1lf%%" 35 #define G1_STRDEDUP_PERCENT_FORMAT_NS "%.1lf%%" 36 #define G1_STRDEDUP_BYTES_FORMAT "%8.1lf%s" 37 #define G1_STRDEDUP_BYTES_FORMAT_NS "%.1lf%s" 38 #define G1_STRDEDUP_BYTES_PARAM(bytes) byte_size_in_proper_unit((double)(bytes)), proper_unit_for_byte_size((bytes)) 39 40 // 41 // Statistics gathered by the deduplication thread. 42 // 43 class G1StringDedupStat : public StackObj { 44 private: 45 // Counters 46 uintx _inspected; 47 uintx _skipped; 48 uintx _hashed; 49 uintx _known; 50 uintx _new; 51 uintx _new_bytes; 52 uintx _deduped; 53 uintx _deduped_bytes; 54 uintx _deduped_young; 55 uintx _deduped_young_bytes; 56 uintx _deduped_old; 57 uintx _deduped_old_bytes; 58 uintx _idle; 59 uintx _exec; 60 uintx _block; 61 62 // Time spent by the deduplication thread in different phases 63 double _start; 64 double _idle_elapsed; 65 double _exec_elapsed; 66 double _block_elapsed; 67 68 public: 69 G1StringDedupStat(); 70 71 void inc_inspected() { 72 _inspected++; 73 } 74 75 void inc_skipped() { 76 _skipped++; 77 } 78 79 void inc_hashed() { 80 _hashed++; 81 } 82 83 void inc_known() { 84 _known++; 85 } 86 87 void inc_new(uintx bytes) { 88 _new++; 89 _new_bytes += bytes; 90 } 91 92 void inc_deduped_young(uintx bytes) { 93 _deduped++; 94 _deduped_bytes += bytes; 95 _deduped_young++; 96 _deduped_young_bytes += bytes; 97 } 98 99 void inc_deduped_old(uintx bytes) { 100 _deduped++; 101 _deduped_bytes += bytes; 102 _deduped_old++; 103 _deduped_old_bytes += bytes; 104 } 105 106 void mark_idle() { 107 _start = os::elapsedTime(); 108 _idle++; 109 } 110 111 void mark_exec() { 112 double now = os::elapsedTime(); 113 _idle_elapsed = now - _start; 114 _start = now; 115 _exec++; 116 } 117 118 void mark_block() { 119 double now = os::elapsedTime(); 120 _exec_elapsed += now - _start; 121 _start = now; 122 _block++; 123 } 124 125 void mark_unblock() { 126 double now = os::elapsedTime(); 127 _block_elapsed += now - _start; 128 _start = now; 129 } 130 131 void mark_done() { 132 double now = os::elapsedTime(); 133 _exec_elapsed += now - _start; 134 } 135 136 void add(const G1StringDedupStat& stat); 137 138 static void print_summary(const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat); 139 static void print_statistics(const G1StringDedupStat& stat, bool total); 140 }; 141 142 #endif // SHARE_VM_GC_G1_G1STRINGDEDUPSTAT_HPP