7.09.2025 состоялся релизPithon 3.14!
На фоне хайпа про NoGIL всё позабыли про другие фичи. Особенно про Multiple Interpreters, который обещает изоляцию процессов но с эффективностью потоков! На сколько действительно это будет эффективно мы узнаем позже, потому что сейчас это лишь первый релиз с ограничениями и недоработками.
Но что там про NoGIL? Теперь этот режим не экспериментальный, а официально поддерживаемый, но опциональный.
Чтобы запустить без GIL нужна специальная сборка. И перед стартом нужно объявить переменную PYTHON_GIL=0
Для вас я собрал готовый репозиторий где достаточно запустить скрпит, который всё сделает:
▫️ соберет релизный Python 3.14 в новый Docker-образ
▫️ запустит тесты в контейнере (GIL, NoGIL, MultiInterpreter)
▫️ распечатает результаты
Тест очень простой, усложняйте сами)
Вот какие результаты у меня:
=== Running ThreadPoolExecutor GIL ON
TOTAL TIME: 45.48 seconds
=== Running ThreadPoolExecutor GIL OFF
TOTAL TIME: 6.14 seconds
=== Running basic Thread GIL ON
TOTAL TIME: 45.54 seconds
=== Running basic Thread GIL OFF
TOTAL TIME: 4.74 seconds
=== Running with Multi Interpreter
TOTAL TIME: 18.30 seconds
Если сравнивать GIL и NoGIL, то на мои 32 ядра прирост х7-x10 (почему не х32? 🤷). При этом нам обещают что скорости будут расти с новыми релизами.
Режим без GIL похож (визуально) на async, тоже параллельно, тоже не по порядку. Но это не IO! и от того некоторый диссонанс в голове 😵💫, нас учили не так!
Интересно, что чистый Thread работает быстрей чем ThreadPoolExecutor без GIL.
Ну и где-то плачет один адепт мульти-интерпретаторов😭 Теперь нужно искать где они могут пригодиться с такой-то скоростью. Скорее всего своя область применения найдется.
Отдельно я затестил память и вот что вышло на 32 потока:
ThreadPoolExecutor GIL ON
305.228 MB
ThreadPoolExecutor GIL OFF
500.176 MB
basic Thread GIL ON
90.668 MB
basic Thread GIL OFF
472.444 MB
with Multi Interpreter
1267.788 MB
Пока не знаю как к этому относиться)
В целом - радует направление развития!
#release
🚨 FACT CHECK: No, you won't be fined for "choping" seats
The National Environment Agency (NEA) is aware of messages claiming there are penalties for seat reservation at hawker centres. These claims are false.
No “Chope-Free” zones either.
We would like to remind patrons to be considerate while dining in #OurHawkerCentres. This helps ensure a pleasant dining experience for all.
Heading to #OurHawkerCentres? From 29 Mar, up to 5 fully vaccinated persons are allowed to dine in together at all hawker centres, where COVID-19 VDS checks, issuance of stickers and fencing will be removed, to allow greater accessibility and convenience.
If you are unvaccinated or partially vaccinated, you cannot dine in but can continue to take away food. Enforcement officers will continue to conduct spot checks, and enforcement action will be taken against unvaccinated individuals found dining in.
#OurHawkerCentres and markets are indoor premises, so do keep your masks on, except when eating or drinking. Even as we transit towards living with COVID-19, let’s continue to stay vigilant and continue to adhere to SMMs, to protect ourselves and our loved ones.
Keeping #OurHawkerCentres clean & safe is a shared responsibility. When we clear our tables, cleaners can focus on other tasks such as cleaning and disinfecting tables, enabling a faster turnover of clean tables.
This benefits everyone – diners, cleaners and hawkers!
The recent rise in COVID-19 cases has seen seniors at higher risk of developing serious health complications, if infected. If you have elderly family members or friends, remind them not to mingle and to order takeaways instead of dining in.
When visiting #OurHawkerCentres and markets, comply with Safe Management Measures (SMMs) to keep our community safe. There has been feedback that groups tend to linger and lapse into SMM breaches at specific hawker centres, and we have stepped up enforcement at these places.
We may not have been able to dine-in at #OurHawkerCentres but we’ve still been enjoying our favourite hawker dishes at home. As we tuck into our carrot cake and nasi padang, let’s send some appreciation to the people behind the delicious dishes at https://bit.ly/2XpTmrC
Food is an important part of our daily lives, and it is essential that all food handlers implement good practices to upkeep good public health hygiene and standards. Together with Singapore Food Agency (SFA), NEA is engaging stallholders at various markets and hawker centres, to provide guidance on maintaining a high level of public hygiene and cleanliness.
To make it easier for stallholders to recall the 7 key good habits, a flyer is being distributed alongside an advisory outlining good practices that stallholders should carry out. The steps are simple ones that individuals can adopt in their daily work. NEA and SFA will continue liaising closely with, and providing support to, operators of food establishments, including stallholders and cleaning contractors at #OurHawkerCentres.
More information is available at www.nea.gov.sg/environmental-cleaning-guidelines
Happy International Fried Chicken Day!
Enjoy the many dishes found at #OurHawkerCentres featuring fried chicken that’s crispy on the outside, yet juicy on the inside. But do remember to order only what you can finish. #SayYEStoWasteLess
When dabao-ing food from #OurHawkerCentres, remember to bring your own reusable containers and #SayYEStoWasteLess!
P.S. If you have elderly family members or neighbours, check if they need help to dabao their meals, so that they can stay home and stay safe.