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72 lines
2.2 KiB
72 lines
2.2 KiB
4 months ago
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_LIBARTBASE_BASE_STATS_H_
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#define ART_LIBARTBASE_BASE_STATS_H_
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#include <unordered_map>
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#include <string>
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#include "globals.h"
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namespace art {
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class VariableIndentationOutputStream;
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// Simple structure to record tree of statistical values.
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class Stats {
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public:
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double Value() const { return value_; }
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size_t Count() const { return count_; }
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Stats& operator[](const char* name) { return children_[name]; }
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const std::unordered_map<const char*, Stats>& Children() const { return children_; }
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void AddBytes(double bytes, size_t count = 1) { Add(bytes, count); }
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void AddBits(double bits, size_t count = 1) { Add(bits / kBitsPerByte, count); }
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void AddSeconds(double s, size_t count = 1) { Add(s, count); }
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void AddNanoSeconds(double ns, size_t count = 1) { Add(ns / 1000000000.0, count); }
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double SumChildrenValues() const {
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double sum = 0.0;
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for (auto it : children_) {
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sum += it.second.Value();
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}
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return sum;
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}
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inline void DumpSizes(VariableIndentationOutputStream& os, std::string_view name) const;
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private:
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void Add(double value, size_t count = 1) {
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value_ += value;
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count_ += count;
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}
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inline void Dump(VariableIndentationOutputStream& os,
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std::string_view name,
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double total,
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double unit_size,
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const char* unit) const;
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double value_ = 0.0; // Commutative sum of the collected statistic in basic units.
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size_t count_ = 0; // The number of samples for this node.
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std::unordered_map<const char*, Stats> children_;
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};
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} // namespace art
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#endif // ART_LIBARTBASE_BASE_STATS_H_
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