tdlight-telegram-bot-api/telegram-bot-api/Stats.cpp

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//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "telegram-bot-api/Stats.h"
#include "td/utils/common.h"
#include "td/utils/port/thread.h"
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#include "td/utils/SliceBuilder.h"
#include "td/utils/StringBuilder.h"
namespace telegram_bot_api {
ServerCpuStat::ServerCpuStat() {
for (std::size_t i = 1; i < SIZE; i++) {
stat_[i] = td::TimedStat<CpuStat>(DURATIONS[i], td::Time::now());
}
}
void ServerCpuStat::add_event(const td::CpuStat &cpu_stat, double now) {
std::lock_guard<std::mutex> guard(mutex_);
for (auto &stat : stat_) {
stat.add_event(cpu_stat, now);
}
}
td::string ServerCpuStat::get_description() const {
td::string res = "DURATION";
for (auto &descr : DESCR) {
res += "\t";
res += descr;
}
return res;
}
static td::string to_percentage(td::uint64 ticks, td::uint64 total_ticks) {
static double multiplier = 100.0 * (td::thread::hardware_concurrency() ? td::thread::hardware_concurrency() : 1);
return PSTRING() << (static_cast<double>(ticks) / static_cast<double>(total_ticks) * multiplier) << "%";
}
td::vector<StatItem> CpuStat::as_vector() const {
td::vector<StatItem> res;
if (cnt_ < 2 || first_.total_ticks_ >= last_.total_ticks_) {
res.push_back({"total_cpu", "UNKNOWN"});
res.push_back({"user_cpu", "UNKNOWN"});
res.push_back({"system_cpu", "UNKNOWN"});
} else {
auto total_ticks = last_.total_ticks_ - first_.total_ticks_;
auto user_ticks = last_.process_user_ticks_ - first_.process_user_ticks_;
auto system_ticks = last_.process_system_ticks_ - first_.process_system_ticks_;
res.push_back({"total_cpu", to_percentage(user_ticks + system_ticks, total_ticks)});
res.push_back({"user_cpu", to_percentage(user_ticks, total_ticks)});
res.push_back({"system_cpu", to_percentage(system_ticks, total_ticks)});
}
return res;
}
td::vector<StatItem> ServerCpuStat::as_vector(double now) {
std::lock_guard<std::mutex> guard(mutex_);
td::vector<StatItem> res = stat_[0].get_stat(now).as_vector();
for (std::size_t i = 1; i < SIZE; i++) {
auto other = stat_[i].get_stat(now).as_vector();
CHECK(other.size() == res.size());
for (size_t j = 0; j < res.size(); j++) {
res[j].value_ += "\t";
res[j].value_ += other[j].value_;
}
}
return res;
}
constexpr int ServerCpuStat::DURATIONS[SIZE];
constexpr const char *ServerCpuStat::DESCR[SIZE];
void ServerBotStat::normalize(double duration) {
if (duration == 0) {
return;
}
request_count_ /= duration;
request_bytes_ /= duration;
request_file_count_ /= duration;
request_files_bytes_ /= duration;
response_count_ /= duration;
response_count_ok_ /= duration;
response_count_error_ /= duration;
response_bytes_ /= duration;
update_count_ /= duration;
}
void ServerBotStat::add(const ServerBotStat &stat) {
request_count_ += stat.request_count_;
request_bytes_ += stat.request_bytes_;
request_file_count_ += stat.request_file_count_;
request_files_bytes_ += stat.request_files_bytes_;
request_files_max_bytes_ = td::max(request_files_max_bytes_, stat.request_files_max_bytes_);
response_count_ += stat.response_count_;
response_count_ok_ += stat.response_count_ok_;
response_count_error_ += stat.response_count_error_;
response_bytes_ += stat.response_bytes_;
update_count_ += stat.update_count_;
}
td::vector<StatItem> ServerBotStat::as_vector() const {
td::vector<StatItem> res;
auto add_item = [&res](td::string name, auto value) {
res.push_back({std::move(name), td::to_string(value)});
};
add_item("request_count", request_count_);
add_item("request_bytes", request_bytes_);
add_item("request_file_count", request_file_count_);
add_item("request_files_bytes", request_files_bytes_);
add_item("request_max_bytes", request_files_max_bytes_);
add_item("response_count", response_count_);
add_item("response_count_ok", response_count_ok_);
add_item("response_count_error", response_count_error_);
add_item("response_bytes", response_bytes_);
add_item("update_count", update_count_);
return res;
}
td::vector<StatItem> BotStatActor::as_vector(double now) {
auto first_sd = stat_[0].stat_duration(now);
first_sd.first.normalize(first_sd.second);
td::vector<StatItem> res = first_sd.first.as_vector();
for (std::size_t i = 1; i < SIZE; i++) {
auto next_sd = stat_[i].stat_duration(now);
next_sd.first.normalize(next_sd.second);
auto other = next_sd.first.as_vector();
CHECK(other.size() == res.size());
for (size_t j = 0; j < res.size(); j++) {
res[j].value_ += "\t";
res[j].value_ += other[j].value_;
}
}
return res;
}
td::string BotStatActor::get_description() const {
td::string res = "DURATION";
for (auto &descr : DESCR) {
res += "\t";
res += descr;
}
return res;
}
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double BotStatActor::get_score(double now) {
auto minute_stat = stat_[2].stat_duration(now);
double result = minute_stat.first.request_count_ + minute_stat.first.update_count_;
if (minute_stat.second != 0) {
result /= minute_stat.second;
}
return result;
}
bool BotStatActor::is_active(double now) const {
return last_activity_timestamp_ > now - 86400;
}
constexpr int BotStatActor::DURATIONS[SIZE];
constexpr const char *BotStatActor::DESCR[SIZE];
} // namespace telegram_bot_api