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
Navigate the right GST rate to pay for transactions spanning the rate change with new mummy and her bestie! 💁♀️💡
A transaction is considered to span the GST rate change if one or two of the following events takes place wholly or partially on/after 1 Jan 2024:
- The issuance of invoice by supplier
- The receipt of payment by supplier
- The delivery of goods or performance of services
More info at go.gov.sg/irasgst-rc-consumers
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We're from IRAS Corp Comms team, of course we need to remind you to file your taxes by 18 Apr 😊🤭
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Here are 3 key things GST-registered businesses need to prepare for the 2024 GST rate change:
1) Update systems to incorporate 9% GST from 1 Jan 2024
2) Prepare price displays to reflect 9% GST from 1 Jan 2024
3) Understand transitional rules to apply the correct GST rate for transactions spanning 1 Jan 2024
Learn more at go.gov.sg/irasgst-rc-businesses
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Know an Asian mum (or dad) who needs help with tax filing? Share this video with them! 👩🏻👨🏻
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Is delulu the solulu? At least, she gained some tax tips on Supplementary Retirement Scheme (SRS) contributions! 💰🤣
Grow your savings by contributing to your SRS Account today! You will be eligible for tax reliefs in Year of Assessment 2024 if you make contribution to your SRS Account by 31 Dec 2023*.
SRS contributions are capped yearly at $15,300 for Singapore Citizens and Permanent Residents and $35,700 for foreigners.
Do note that there is an overall cap of $80,000 on the total amount of all tax reliefs that can be claimed (including any relief on SRS contributions) for a year.
Details and qualifying conditions:
https://www.iras.gov.sg/taxes/individual-income-tax/basics-of-individual-income-tax/special-tax-schemes/srs-contributions
*You are advised to check with your SRS bank operator about the cut-off date for SRS contributions.
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Enjoy tax deductions of 2.5 times the qualifying donation amount in Year of Assessment 2024 when you donate to any approved Institution of a Public Character (IPC) by 31 Dec 2023.
You will not need to declare the donation amount in your Income Tax Return as tax deductions for qualifying donations will be automatically reflected in your tax assessments based on information from the IPC.
Details and qualifying conditions:
https://www.iras.gov.sg/taxes/other-taxes/charities/donations-tax-deductions
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#TaxTip Grow your savings by contributing to your Supplementary Retirement Scheme (SRS) Account! You will be eligible for tax reliefs in Year of Assessment 2023 if you make contribution to your SRS Account by 31 Dec 2022.
SRS Contributions are capped yearly at $15,300 for Singapore Citizens and Permanent Residents and $35,700 for foreigners.
Do note that there is an overall cap of $80,000 on the total amount of all tax reliefs that can be claimed (including any relief on SRS contributions) for a year.
Details and qualifying conditions: https://www.iras.gov.sg/taxes/individual-income-tax/basics-of-individual-income-tax/special-tax-schemes/srs-contributions
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#TaxTip It is never too early to prepare for your (and your loved ones’) retirement needs. Top up your own and/or those of your family members’ CPF Special/Retirement or Medisave Account by 31 Dec 2022 to enjoy the CPF Cash Top-up Relief in Year of Assessment 2023!
Do note that there is an overall cap of $80,000 on the total amount of all tax reliefs that can be claimed (including any relief on CPF cash top-ups) for a year.
Details and qualifying conditions: www.iras.gov.sg/taxes/individual-income-tax/basics-of-individual-income-tax/tax-reliefs-rebates-and-deductions/tax-reliefs/central-provident-fund-(cpf)-cash-top-up-relief
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#TaxTip Enjoy tax deductions of 2.5 times the qualifying donation amount in Year of Assessment 2023 when you donate to any approved Institution of a Public Character (IPC) by 31 Dec 2022!
You will not need to declare the donation amount in your income tax return as tax deductions for qualifying donations will be automatically reflected in your tax assessments based on information from the IPC.
Details and qualifying conditions: https://www.iras.gov.sg/taxes/other-taxes/charities/donations-tax-deductions
#iras#sg#taxes#taxtip#reliefs#donate#donations
Yasss to being a financially savvy kween! 🙌👑 It’s never too soon to secure the bag for your (and your fam’s) retirement 🌟
Top up your own and/or those of your family members’ CPF Special/Retirement or Medisave Account by 31 Dec 2023 to enjoy the CPF Cash Top-up Relief in Year of Assessment 2024.
Do note that there is an overall cap of $80,000 on the total amount of all tax reliefs that can be claimed (including any relief on CPF Cash Top-ups) for a year.
Details and qualifying conditions:
https://www.iras.gov.sg/taxes/individual-income-tax/basics-of-individual-income-tax/tax-reliefs-rebates-and-deductions/tax-reliefs/central-provident-fund-(cpf)-cash-top-up-relief
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