1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_LIBARTBASE_BASE_STATS_INL_H_ 18 #define ART_LIBARTBASE_BASE_STATS_INL_H_ 19 20 #include <iomanip> 21 #include <map> 22 23 #include "base/stats.h" 24 #include "base/indenter.h" 25 26 namespace art { DumpSizes(VariableIndentationOutputStream & os,std::string_view name)27 void Stats::DumpSizes(VariableIndentationOutputStream& os, std::string_view name) const { 28 Dump(os, name, Value(), 1000.0, "KB"); 29 } 30 Dump(VariableIndentationOutputStream & os,std::string_view name,double total,double unit_size,const char * unit)31 void Stats::Dump(VariableIndentationOutputStream& os, 32 std::string_view name, 33 double total, 34 double unit_size, 35 const char* unit) const { 36 double percent = total > 0 ? 100.0 * Value() / total : 0; 37 const size_t name_width = 52 - os.GetIndentation(); 38 if (name.length() > name_width) { 39 // Handle very long names by printing them on their own line. 40 os.Stream() << name << " \\\n"; 41 name = ""; 42 } 43 os.Stream() 44 << std::setw(name_width) << std::left << name << " " 45 << std::setw(6) << std::right << Count() << " " 46 << std::setw(10) << std::fixed << std::setprecision(3) << Value() / unit_size << unit << " " 47 << std::setw(6) << std::fixed << std::setprecision(1) << percent << "%\n"; 48 49 // Sort all children by largest value first, then by name. 50 std::map<std::pair<double, std::string_view>, const Stats&> sorted_children; 51 for (const auto& it : Children()) { 52 sorted_children.emplace(std::make_pair(-it.second.Value(), it.first), it.second); 53 } 54 55 // Add "other" row to represent any amount not account for by the children. 56 Stats other; 57 other.AddBytes(Value() - SumChildrenValues(), Count()); 58 if (other.Value() != 0.0 && !Children().empty()) { 59 sorted_children.emplace(std::make_pair(-other.Value(), "(other)"), other); 60 } 61 62 // Print the data. 63 ScopedIndentation indent1(&os); 64 for (const auto& it : sorted_children) { 65 it.second.Dump(os, it.first.second, total, unit_size, unit); 66 } 67 } 68 } // namespace art 69 70 #endif // ART_LIBARTBASE_BASE_STATS_INL_H_ 71