diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc | 1030 |
1 files changed, 0 insertions, 1030 deletions
diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc deleted file mode 100644 index 4e39188ff3..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc +++ /dev/null @@ -1,1030 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <algorithm> -#include <cassert> -#include <chrono> -#include <ctime> -#include <random> -#include <string> -#include <vector> - -#include "benchmark/benchmark.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" -#include "time_zone_impl.h" - -namespace { - -namespace cctz = absl::time_internal::cctz; - -void BM_Difference_Days(benchmark::State& state) { - const cctz::civil_day c(2014, 8, 22); - const cctz::civil_day epoch(1970, 1, 1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(c - epoch); - } -} -BENCHMARK(BM_Difference_Days); - -void BM_Step_Days(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - cctz::civil_day c = kStart; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(++c); - } -} -BENCHMARK(BM_Step_Days); - -void BM_GetWeekday(benchmark::State& state) { - const cctz::civil_day c(2014, 8, 22); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::get_weekday(c)); - } -} -BENCHMARK(BM_GetWeekday); - -void BM_NextWeekday(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - const cctz::civil_day kDays[7] = { - kStart + 0, kStart + 1, kStart + 2, kStart + 3, - kStart + 4, kStart + 5, kStart + 6, - }; - const cctz::weekday kWeekdays[7] = { - cctz::weekday::monday, cctz::weekday::tuesday, cctz::weekday::wednesday, - cctz::weekday::thursday, cctz::weekday::friday, cctz::weekday::saturday, - cctz::weekday::sunday, - }; - while (state.KeepRunningBatch(7 * 7)) { - for (const auto from : kDays) { - for (const auto to : kWeekdays) { - benchmark::DoNotOptimize(cctz::next_weekday(from, to)); - } - } - } -} -BENCHMARK(BM_NextWeekday); - -void BM_PrevWeekday(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - const cctz::civil_day kDays[7] = { - kStart + 0, kStart + 1, kStart + 2, kStart + 3, - kStart + 4, kStart + 5, kStart + 6, - }; - const cctz::weekday kWeekdays[7] = { - cctz::weekday::monday, cctz::weekday::tuesday, cctz::weekday::wednesday, - cctz::weekday::thursday, cctz::weekday::friday, cctz::weekday::saturday, - cctz::weekday::sunday, - }; - while (state.KeepRunningBatch(7 * 7)) { - for (const auto from : kDays) { - for (const auto to : kWeekdays) { - benchmark::DoNotOptimize(cctz::prev_weekday(from, to)); - } - } - } -} -BENCHMARK(BM_PrevWeekday); - -const char RFC3339_full[] = "%Y-%m-%d%ET%H:%M:%E*S%Ez"; -const char RFC3339_sec[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - -const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z"; -const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z"; - -// A list of known time-zone names. -// TODO: Refactor with src/time_zone_lookup_test.cc. -const char* const kTimeZoneNames[] = {"Africa/Abidjan", - "Africa/Accra", - "Africa/Addis_Ababa", - "Africa/Algiers", - "Africa/Asmara", - "Africa/Asmera", - "Africa/Bamako", - "Africa/Bangui", - "Africa/Banjul", - "Africa/Bissau", - "Africa/Blantyre", - "Africa/Brazzaville", - "Africa/Bujumbura", - "Africa/Cairo", - "Africa/Casablanca", - "Africa/Ceuta", - "Africa/Conakry", - "Africa/Dakar", - "Africa/Dar_es_Salaam", - "Africa/Djibouti", - "Africa/Douala", - "Africa/El_Aaiun", - "Africa/Freetown", - "Africa/Gaborone", - "Africa/Harare", - "Africa/Johannesburg", - "Africa/Juba", - "Africa/Kampala", - "Africa/Khartoum", - "Africa/Kigali", - "Africa/Kinshasa", - "Africa/Lagos", - "Africa/Libreville", - "Africa/Lome", - "Africa/Luanda", - "Africa/Lubumbashi", - "Africa/Lusaka", - "Africa/Malabo", - "Africa/Maputo", - "Africa/Maseru", - "Africa/Mbabane", - "Africa/Mogadishu", - "Africa/Monrovia", - "Africa/Nairobi", - "Africa/Ndjamena", - "Africa/Niamey", - "Africa/Nouakchott", - "Africa/Ouagadougou", - "Africa/Porto-Novo", - "Africa/Sao_Tome", - "Africa/Timbuktu", - "Africa/Tripoli", - "Africa/Tunis", - "Africa/Windhoek", - "America/Adak", - "America/Anchorage", - "America/Anguilla", - "America/Antigua", - "America/Araguaina", - "America/Argentina/Buenos_Aires", - "America/Argentina/Catamarca", - "America/Argentina/ComodRivadavia", - "America/Argentina/Cordoba", - "America/Argentina/Jujuy", - "America/Argentina/La_Rioja", - "America/Argentina/Mendoza", - "America/Argentina/Rio_Gallegos", - "America/Argentina/Salta", - "America/Argentina/San_Juan", - "America/Argentina/San_Luis", - "America/Argentina/Tucuman", - "America/Argentina/Ushuaia", - "America/Aruba", - "America/Asuncion", - "America/Atikokan", - "America/Atka", - "America/Bahia", - "America/Bahia_Banderas", - "America/Barbados", - "America/Belem", - "America/Belize", - "America/Blanc-Sablon", - "America/Boa_Vista", - "America/Bogota", - "America/Boise", - "America/Buenos_Aires", - "America/Cambridge_Bay", - "America/Campo_Grande", - "America/Cancun", - "America/Caracas", - "America/Catamarca", - "America/Cayenne", - "America/Cayman", - "America/Chicago", - "America/Chihuahua", - "America/Coral_Harbour", - "America/Cordoba", - "America/Costa_Rica", - "America/Creston", - "America/Cuiaba", - "America/Curacao", - "America/Danmarkshavn", - "America/Dawson", - "America/Dawson_Creek", - "America/Denver", - "America/Detroit", - "America/Dominica", - "America/Edmonton", - "America/Eirunepe", - "America/El_Salvador", - "America/Ensenada", - "America/Fort_Nelson", - "America/Fort_Wayne", - "America/Fortaleza", - "America/Glace_Bay", - "America/Godthab", - "America/Goose_Bay", - "America/Grand_Turk", - "America/Grenada", - "America/Guadeloupe", - "America/Guatemala", - "America/Guayaquil", - "America/Guyana", - "America/Halifax", - "America/Havana", - "America/Hermosillo", - "America/Indiana/Indianapolis", - "America/Indiana/Knox", - "America/Indiana/Marengo", - "America/Indiana/Petersburg", - "America/Indiana/Tell_City", - "America/Indiana/Vevay", - "America/Indiana/Vincennes", - "America/Indiana/Winamac", - "America/Indianapolis", - "America/Inuvik", - "America/Iqaluit", - "America/Jamaica", - "America/Jujuy", - "America/Juneau", - "America/Kentucky/Louisville", - "America/Kentucky/Monticello", - "America/Knox_IN", - "America/Kralendijk", - "America/La_Paz", - "America/Lima", - "America/Los_Angeles", - "America/Louisville", - "America/Lower_Princes", - "America/Maceio", - "America/Managua", - "America/Manaus", - "America/Marigot", - "America/Martinique", - "America/Matamoros", - "America/Mazatlan", - "America/Mendoza", - "America/Menominee", - "America/Merida", - "America/Metlakatla", - "America/Mexico_City", - "America/Miquelon", - "America/Moncton", - "America/Monterrey", - "America/Montevideo", - "America/Montreal", - "America/Montserrat", - "America/Nassau", - "America/New_York", - "America/Nipigon", - "America/Nome", - "America/Noronha", - "America/North_Dakota/Beulah", - "America/North_Dakota/Center", - "America/North_Dakota/New_Salem", - "America/Nuuk", - "America/Ojinaga", - "America/Panama", - "America/Pangnirtung", - "America/Paramaribo", - "America/Phoenix", - "America/Port-au-Prince", - "America/Port_of_Spain", - "America/Porto_Acre", - "America/Porto_Velho", - "America/Puerto_Rico", - "America/Punta_Arenas", - "America/Rainy_River", - "America/Rankin_Inlet", - "America/Recife", - "America/Regina", - "America/Resolute", - "America/Rio_Branco", - "America/Rosario", - "America/Santa_Isabel", - "America/Santarem", - "America/Santiago", - "America/Santo_Domingo", - "America/Sao_Paulo", - "America/Scoresbysund", - "America/Shiprock", - "America/Sitka", - "America/St_Barthelemy", - "America/St_Johns", - "America/St_Kitts", - "America/St_Lucia", - "America/St_Thomas", - "America/St_Vincent", - "America/Swift_Current", - "America/Tegucigalpa", - "America/Thule", - "America/Thunder_Bay", - "America/Tijuana", - "America/Toronto", - "America/Tortola", - "America/Vancouver", - "America/Virgin", - "America/Whitehorse", - "America/Winnipeg", - "America/Yakutat", - "America/Yellowknife", - "Antarctica/Casey", - "Antarctica/Davis", - "Antarctica/DumontDUrville", - "Antarctica/Macquarie", - "Antarctica/Mawson", - "Antarctica/McMurdo", - "Antarctica/Palmer", - "Antarctica/Rothera", - "Antarctica/South_Pole", - "Antarctica/Syowa", - "Antarctica/Troll", - "Antarctica/Vostok", - "Arctic/Longyearbyen", - "Asia/Aden", - "Asia/Almaty", - "Asia/Amman", - "Asia/Anadyr", - "Asia/Aqtau", - "Asia/Aqtobe", - "Asia/Ashgabat", - "Asia/Ashkhabad", - "Asia/Atyrau", - "Asia/Baghdad", - "Asia/Bahrain", - "Asia/Baku", - "Asia/Bangkok", - "Asia/Barnaul", - "Asia/Beirut", - "Asia/Bishkek", - "Asia/Brunei", - "Asia/Calcutta", - "Asia/Chita", - "Asia/Choibalsan", - "Asia/Chongqing", - "Asia/Chungking", - "Asia/Colombo", - "Asia/Dacca", - "Asia/Damascus", - "Asia/Dhaka", - "Asia/Dili", - "Asia/Dubai", - "Asia/Dushanbe", - "Asia/Famagusta", - "Asia/Gaza", - "Asia/Harbin", - "Asia/Hebron", - "Asia/Ho_Chi_Minh", - "Asia/Hong_Kong", - "Asia/Hovd", - "Asia/Irkutsk", - "Asia/Istanbul", - "Asia/Jakarta", - "Asia/Jayapura", - "Asia/Jerusalem", - "Asia/Kabul", - "Asia/Kamchatka", - "Asia/Karachi", - "Asia/Kashgar", - "Asia/Kathmandu", - "Asia/Katmandu", - "Asia/Khandyga", - "Asia/Kolkata", - "Asia/Krasnoyarsk", - "Asia/Kuala_Lumpur", - "Asia/Kuching", - "Asia/Kuwait", - "Asia/Macao", - "Asia/Macau", - "Asia/Magadan", - "Asia/Makassar", - "Asia/Manila", - "Asia/Muscat", - "Asia/Nicosia", - "Asia/Novokuznetsk", - "Asia/Novosibirsk", - "Asia/Omsk", - "Asia/Oral", - "Asia/Phnom_Penh", - "Asia/Pontianak", - "Asia/Pyongyang", - "Asia/Qatar", - "Asia/Qostanay", - "Asia/Qyzylorda", - "Asia/Rangoon", - "Asia/Riyadh", - "Asia/Saigon", - "Asia/Sakhalin", - "Asia/Samarkand", - "Asia/Seoul", - "Asia/Shanghai", - "Asia/Singapore", - "Asia/Srednekolymsk", - "Asia/Taipei", - "Asia/Tashkent", - "Asia/Tbilisi", - "Asia/Tehran", - "Asia/Tel_Aviv", - "Asia/Thimbu", - "Asia/Thimphu", - "Asia/Tokyo", - "Asia/Tomsk", - "Asia/Ujung_Pandang", - "Asia/Ulaanbaatar", - "Asia/Ulan_Bator", - "Asia/Urumqi", - "Asia/Ust-Nera", - "Asia/Vientiane", - "Asia/Vladivostok", - "Asia/Yakutsk", - "Asia/Yangon", - "Asia/Yekaterinburg", - "Asia/Yerevan", - "Atlantic/Azores", - "Atlantic/Bermuda", - "Atlantic/Canary", - "Atlantic/Cape_Verde", - "Atlantic/Faeroe", - "Atlantic/Faroe", - "Atlantic/Jan_Mayen", - "Atlantic/Madeira", - "Atlantic/Reykjavik", - "Atlantic/South_Georgia", - "Atlantic/St_Helena", - "Atlantic/Stanley", - "Australia/ACT", - "Australia/Adelaide", - "Australia/Brisbane", - "Australia/Broken_Hill", - "Australia/Canberra", - "Australia/Currie", - "Australia/Darwin", - "Australia/Eucla", - "Australia/Hobart", - "Australia/LHI", - "Australia/Lindeman", - "Australia/Lord_Howe", - "Australia/Melbourne", - "Australia/NSW", - "Australia/North", - "Australia/Perth", - "Australia/Queensland", - "Australia/South", - "Australia/Sydney", - "Australia/Tasmania", - "Australia/Victoria", - "Australia/West", - "Australia/Yancowinna", - "Brazil/Acre", - "Brazil/DeNoronha", - "Brazil/East", - "Brazil/West", - "CET", - "CST6CDT", - "Canada/Atlantic", - "Canada/Central", - "Canada/Eastern", - "Canada/Mountain", - "Canada/Newfoundland", - "Canada/Pacific", - "Canada/Saskatchewan", - "Canada/Yukon", - "Chile/Continental", - "Chile/EasterIsland", - "Cuba", - "EET", - "EST", - "EST5EDT", - "Egypt", - "Eire", - "Etc/GMT", - "Etc/GMT+0", - "Etc/GMT+1", - "Etc/GMT+10", - "Etc/GMT+11", - "Etc/GMT+12", - "Etc/GMT+2", - "Etc/GMT+3", - "Etc/GMT+4", - "Etc/GMT+5", - "Etc/GMT+6", - "Etc/GMT+7", - "Etc/GMT+8", - "Etc/GMT+9", - "Etc/GMT-0", - "Etc/GMT-1", - "Etc/GMT-10", - "Etc/GMT-11", - "Etc/GMT-12", - "Etc/GMT-13", - "Etc/GMT-14", - "Etc/GMT-2", - "Etc/GMT-3", - "Etc/GMT-4", - "Etc/GMT-5", - "Etc/GMT-6", - "Etc/GMT-7", - "Etc/GMT-8", - "Etc/GMT-9", - "Etc/GMT0", - "Etc/Greenwich", - "Etc/UCT", - "Etc/UTC", - "Etc/Universal", - "Etc/Zulu", - "Europe/Amsterdam", - "Europe/Andorra", - "Europe/Astrakhan", - "Europe/Athens", - "Europe/Belfast", - "Europe/Belgrade", - "Europe/Berlin", - "Europe/Bratislava", - "Europe/Brussels", - "Europe/Bucharest", - "Europe/Budapest", - "Europe/Busingen", - "Europe/Chisinau", - "Europe/Copenhagen", - "Europe/Dublin", - "Europe/Gibraltar", - "Europe/Guernsey", - "Europe/Helsinki", - "Europe/Isle_of_Man", - "Europe/Istanbul", - "Europe/Jersey", - "Europe/Kaliningrad", - "Europe/Kiev", - "Europe/Kirov", - "Europe/Lisbon", - "Europe/Ljubljana", - "Europe/London", - "Europe/Luxembourg", - "Europe/Madrid", - "Europe/Malta", - "Europe/Mariehamn", - "Europe/Minsk", - "Europe/Monaco", - "Europe/Moscow", - "Europe/Nicosia", - "Europe/Oslo", - "Europe/Paris", - "Europe/Podgorica", - "Europe/Prague", - "Europe/Riga", - "Europe/Rome", - "Europe/Samara", - "Europe/San_Marino", - "Europe/Sarajevo", - "Europe/Saratov", - "Europe/Simferopol", - "Europe/Skopje", - "Europe/Sofia", - "Europe/Stockholm", - "Europe/Tallinn", - "Europe/Tirane", - "Europe/Tiraspol", - "Europe/Ulyanovsk", - "Europe/Uzhgorod", - "Europe/Vaduz", - "Europe/Vatican", - "Europe/Vienna", - "Europe/Vilnius", - "Europe/Volgograd", - "Europe/Warsaw", - "Europe/Zagreb", - "Europe/Zaporozhye", - "Europe/Zurich", - "GB", - "GB-Eire", - "GMT", - "GMT+0", - "GMT-0", - "GMT0", - "Greenwich", - "HST", - "Hongkong", - "Iceland", - "Indian/Antananarivo", - "Indian/Chagos", - "Indian/Christmas", - "Indian/Cocos", - "Indian/Comoro", - "Indian/Kerguelen", - "Indian/Mahe", - "Indian/Maldives", - "Indian/Mauritius", - "Indian/Mayotte", - "Indian/Reunion", - "Iran", - "Israel", - "Jamaica", - "Japan", - "Kwajalein", - "Libya", - "MET", - "MST", - "MST7MDT", - "Mexico/BajaNorte", - "Mexico/BajaSur", - "Mexico/General", - "NZ", - "NZ-CHAT", - "Navajo", - "PRC", - "PST8PDT", - "Pacific/Apia", - "Pacific/Auckland", - "Pacific/Bougainville", - "Pacific/Chatham", - "Pacific/Chuuk", - "Pacific/Easter", - "Pacific/Efate", - "Pacific/Enderbury", - "Pacific/Fakaofo", - "Pacific/Fiji", - "Pacific/Funafuti", - "Pacific/Galapagos", - "Pacific/Gambier", - "Pacific/Guadalcanal", - "Pacific/Guam", - "Pacific/Honolulu", - "Pacific/Johnston", - "Pacific/Kiritimati", - "Pacific/Kosrae", - "Pacific/Kwajalein", - "Pacific/Majuro", - "Pacific/Marquesas", - "Pacific/Midway", - "Pacific/Nauru", - "Pacific/Niue", - "Pacific/Norfolk", - "Pacific/Noumea", - "Pacific/Pago_Pago", - "Pacific/Palau", - "Pacific/Pitcairn", - "Pacific/Pohnpei", - "Pacific/Ponape", - "Pacific/Port_Moresby", - "Pacific/Rarotonga", - "Pacific/Saipan", - "Pacific/Samoa", - "Pacific/Tahiti", - "Pacific/Tarawa", - "Pacific/Tongatapu", - "Pacific/Truk", - "Pacific/Wake", - "Pacific/Wallis", - "Pacific/Yap", - "Poland", - "Portugal", - "ROC", - "ROK", - "Singapore", - "Turkey", - "UCT", - "US/Alaska", - "US/Aleutian", - "US/Arizona", - "US/Central", - "US/East-Indiana", - "US/Eastern", - "US/Hawaii", - "US/Indiana-Starke", - "US/Michigan", - "US/Mountain", - "US/Pacific", - "US/Samoa", - "UTC", - "Universal", - "W-SU", - "WET", - "Zulu", - nullptr}; - -std::vector<std::string> AllTimeZoneNames() { - std::vector<std::string> names; - for (const char* const* namep = kTimeZoneNames; *namep != nullptr; ++namep) { - names.push_back(std::string("file:") + *namep); - } - assert(!names.empty()); - - std::mt19937 urbg(42); // a UniformRandomBitGenerator with fixed seed - std::shuffle(names.begin(), names.end(), urbg); - return names; -} - -cctz::time_zone TestTimeZone() { - cctz::time_zone tz; - cctz::load_time_zone("America/Los_Angeles", &tz); - return tz; -} - -void BM_Zone_LoadUTCTimeZoneFirst(benchmark::State& state) { - cctz::time_zone tz; - cctz::load_time_zone("UTC", &tz); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz)); - } -} -BENCHMARK(BM_Zone_LoadUTCTimeZoneFirst); - -void BM_Zone_LoadUTCTimeZoneLast(benchmark::State& state) { - cctz::time_zone tz; - for (const auto& name : AllTimeZoneNames()) { - cctz::load_time_zone(name, &tz); // prime cache - } - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz)); - } -} -BENCHMARK(BM_Zone_LoadUTCTimeZoneLast); - -void BM_Zone_LoadTimeZoneFirst(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first - const std::string name = "file:America/Los_Angeles"; - while (state.KeepRunning()) { - state.PauseTiming(); - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - state.ResumeTiming(); - benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz)); - } -} -BENCHMARK(BM_Zone_LoadTimeZoneFirst); - -void BM_Zone_LoadTimeZoneCached(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - const std::string name = "file:America/Los_Angeles"; - cctz::load_time_zone(name, &tz); // prime cache - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz)); - } -} -BENCHMARK(BM_Zone_LoadTimeZoneCached); - -void BM_Zone_LoadLocalTimeZoneCached(benchmark::State& state) { - cctz::utc_time_zone(); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - cctz::local_time_zone(); // prime cache - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::local_time_zone()); - } -} -BENCHMARK(BM_Zone_LoadLocalTimeZoneCached); - -void BM_Zone_LoadAllTimeZonesFirst(benchmark::State& state) { - cctz::time_zone tz; - const std::vector<std::string> names = AllTimeZoneNames(); - for (auto index = names.size(); state.KeepRunning(); ++index) { - if (index == names.size()) { - index = 0; - } - if (index == 0) { - state.PauseTiming(); - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - state.ResumeTiming(); - } - benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz)); - } -} -BENCHMARK(BM_Zone_LoadAllTimeZonesFirst); - -void BM_Zone_LoadAllTimeZonesCached(benchmark::State& state) { - cctz::time_zone tz; - const std::vector<std::string> names = AllTimeZoneNames(); - for (const auto& name : names) { - cctz::load_time_zone(name, &tz); // prime cache - } - for (auto index = names.size(); state.KeepRunning(); ++index) { - if (index == names.size()) { - index = 0; - } - benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz)); - } -} -BENCHMARK(BM_Zone_LoadAllTimeZonesCached); - -void BM_Zone_TimeZoneEqualityImplicit(benchmark::State& state) { - cctz::time_zone tz; // implicit UTC - while (state.KeepRunning()) { - benchmark::DoNotOptimize(tz == tz); - } -} -BENCHMARK(BM_Zone_TimeZoneEqualityImplicit); - -void BM_Zone_TimeZoneEqualityExplicit(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // explicit UTC - while (state.KeepRunning()) { - benchmark::DoNotOptimize(tz == tz); - } -} -BENCHMARK(BM_Zone_TimeZoneEqualityExplicit); - -void BM_Zone_UTCTimeZone(benchmark::State& state) { - cctz::time_zone tz; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::utc_time_zone()); - } -} -BENCHMARK(BM_Zone_UTCTimeZone); - -// In each "ToCivil" benchmark we switch between two instants separated -// by at least one transition in order to defeat any internal caching of -// previous results (e.g., see local_time_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. - -void BM_Time_ToCivil_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - std::chrono::system_clock::time_point tp = - std::chrono::system_clock::from_time_t(1384569027); - std::chrono::system_clock::time_point tp2 = - std::chrono::system_clock::from_time_t(1418962578); - while (state.KeepRunning()) { - std::swap(tp, tp2); - tp += std::chrono::seconds(1); - benchmark::DoNotOptimize(cctz::convert(tp, tz)); - } -} -BENCHMARK(BM_Time_ToCivil_CCTZ); - -void BM_Time_ToCivil_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - time_t t = 1384569027; - time_t t2 = 1418962578; - struct tm tm; - while (state.KeepRunning()) { - std::swap(t, t2); - t += 1; -#if defined(_WIN32) || defined(_WIN64) - benchmark::DoNotOptimize(localtime_s(&tm, &t)); -#else - benchmark::DoNotOptimize(localtime_r(&t, &tm)); -#endif - } -} -BENCHMARK(BM_Time_ToCivil_Libc); - -void BM_Time_ToCivilUTC_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = cctz::utc_time_zone(); - std::chrono::system_clock::time_point tp = - std::chrono::system_clock::from_time_t(1384569027); - while (state.KeepRunning()) { - tp += std::chrono::seconds(1); - benchmark::DoNotOptimize(cctz::convert(tp, tz)); - } -} -BENCHMARK(BM_Time_ToCivilUTC_CCTZ); - -void BM_Time_ToCivilUTC_Libc(benchmark::State& state) { - time_t t = 1384569027; - struct tm tm; - while (state.KeepRunning()) { - t += 1; -#if defined(_WIN32) || defined(_WIN64) - benchmark::DoNotOptimize(gmtime_s(&tm, &t)); -#else - benchmark::DoNotOptimize(gmtime_r(&t, &tm)); -#endif - } -} -BENCHMARK(BM_Time_ToCivilUTC_Libc); - -// In each "FromCivil" benchmark we switch between two YMDhms values -// separated by at least one transition in order to defeat any internal -// caching of previous results (e.g., see time_local_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. -// The "Day0" variants require normalization of the day of month. - -void BM_Time_FromCivil_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - int i = 0; - while (state.KeepRunning()) { - if ((i++ & 1) == 0) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz)); - } else { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2013, 11, 15, 18, 30, 27), tz)); - } - } -} -BENCHMARK(BM_Time_FromCivil_CCTZ); - -void BM_Time_FromCivil_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i++ & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 18; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 15; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - benchmark::DoNotOptimize(mktime(&tm)); - } -} -BENCHMARK(BM_Time_FromCivil_Libc); - -void BM_Time_FromCivilUTC_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = cctz::utc_time_zone(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz)); - } -} -BENCHMARK(BM_Time_FromCivilUTC_CCTZ); - -// There is no BM_Time_FromCivilUTC_Libc. - -void BM_Time_FromCivilDay0_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - int i = 0; - while (state.KeepRunning()) { - if ((i++ & 1) == 0) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 0, 20, 16, 18), tz)); - } else { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2013, 11, 0, 18, 30, 27), tz)); - } - } -} -BENCHMARK(BM_Time_FromCivilDay0_CCTZ); - -void BM_Time_FromCivilDay0_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i++ & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 0; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 0; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - benchmark::DoNotOptimize(mktime(&tm)); - } -} -BENCHMARK(BM_Time_FromCivilDay0_Libc); - -const char* const kFormats[] = { - RFC1123_full, // 0 - RFC1123_no_wday, // 1 - RFC3339_full, // 2 - RFC3339_sec, // 3 - "%Y-%m-%d%ET%H:%M:%S", // 4 - "%Y-%m-%d", // 5 -}; -const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]); - -void BM_Format_FormatTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const cctz::time_zone tz = TestTimeZone(); - const std::chrono::system_clock::time_point tp = - cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) + - std::chrono::microseconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::format(fmt, tp, tz)); - } -} -BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1); - -void BM_Format_ParseTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const cctz::time_zone tz = TestTimeZone(); - std::chrono::system_clock::time_point tp = - cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) + - std::chrono::microseconds(1); - const std::string when = cctz::format(fmt, tp, tz); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::parse(fmt, when, tz, &tp)); - } -} -BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1); - -} // namespace |