TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #425 · 20 апр.
Недавно делал быстрый прототип асинхронного приложения в котором требовалось вызывать много синхронного кода. Да, я знаю, что это не лучший дизайн, но нужно было быстрое решение на один процесс и без очередей. Поэтому я выполнял код в потоках. Выглядело это примерно так: from fastapi.concurrency import run_in_threadpool async def execute(data: DataRequest) -> DataResponse: try: result = await run_in_threadpool(sync_function, data) return DataResponse(data=result) except Exception as e: return DataResponse( error=str(e), success=False, ) В общем работает нормально. Для всех вызовов под капотом используется общий тредпул, всё работает предсказуемо. Но потребовалось изменить количество запускаемых в пуле потоков (по умолчанию создается 40 воркеров). Так как дело происходит с FastAPI, делается это через lifespan используя настройки anyio: import anyio @asynccontextmanager async def lifespan(app: FastAPI): limiter = anyio.to_thread.current_default_thread_limiter() limiter.total_tokens = 100 yield # если вдруг нужно вернуть обратно limiter.total_tokens = 40 Зачем менять количество воркеров? - уменьшить, если оперативки мало (один тред занимает ~8мб) - увеличить чтобы выдержать нагрузку Если есть предложения получше при тех же вводных - предлагайте😉 #async
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Пребарај: #yishun
@sgmrt · Post #2348 · 11.05.2025 г., 09:44
[NSL] CLEARED: The earlier track point fault has been cleared. Train service has resumed. Free regular bus service is still available between #Yishun and #Woodlands. We apologise for the delay to your journey. - SMRT
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@sgmrt · Post #1643 · 08.02.2023 г., 04:23
[NSL] UPDATE: Pls add at least 25mins train travel time between #Yishun and #Woodlands. Out staff are working hard to rectify the track point fault. Commuters are advised to take alternative routes such as TEL. Free regular bus and bridging bus services are still available. - SMRT
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@sgmrt · Post #1642 · 08.02.2023 г., 04:23
[NSL] UPDATE: Please add 15mins train travel time between #Yishun and #Woodlands. Free regular bus and bridging bus services are still available. We seek your understanding as we are working to recover regular service. - SMRT
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@sgmrt · Post #1641 · 08.02.2023 г., 03:51
[NSL] UPDATE: Please add 25mins of train travel time between #Yishun and #Woodlands. Our staff are working to recover service. Free regular bus and bus bridging services are still available. For alt. travel options, please use TEL or visit our website for more information. - SMRT
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@sgmrt · Post #1640 · 08.02.2023 г., 03:36
[NSL] UPDATE: Pls add 25mins of train travel time between #Yishun and #Woodlands. Our staff are working to recover service. For alternative travel options, please use TEL or refer to our website (https://bit.ly/3sUuPup). - SMRT
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@sgmrt · Post #1639 · 08.02.2023 г., 03:22
[NSL] UPDATE: Pls add 25mins of train travel time between #Yishun and #Woodlands. Free regular bus and bridging bus services are still available. For alternative travel options, please use TEL or refer to https://bit.ly/3sUuPup for more information. - SMRT
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@sgmrt · Post #1638 · 08.02.2023 г., 02:52
[NSL] UPDATE: Please add 25mins train travel time btwn #Yishun and #Woodlands. For alternative travel options, pls take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still avail. - SMRT
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@sgmrt · Post #1637 · 08.02.2023 г., 02:39
[NSL] UPDATE: Pls add 25mins train travel time between #Yishun and #Woodlands. For alternative travel options, pls take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still available. - SMRT
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@sgmrt · Post #1636 · 08.02.2023 г., 02:24
[NSL] UPDATE: Please add 25mins train travel time between #Yishun and #Woodlands. For alternative travel options, please take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still avail. - SMRT
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@sgmrt · Post #1635 · 08.02.2023 г., 01:54
[NSL] UPDATE: Pls add 25mins train travel time btwn #Yishun and #Woodlands. For alternative travel options, pls take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still avail. - SMRT
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@sgmrt · Post #1634 · 08.02.2023 г., 01:38
[NSL] UPDATE: Please add 25mins train travel time btwn #Yishun and #Woodlands. We are working to recover svc. Pls take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still avail. - SMRT
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@sgmrt · Post #1633 · 08.02.2023 г., 01:23
[NSL] UPDATE: Pls add 25mins train travel time btwn #Yishun and #Woodlands. Please take TEL or refer to https://bit.ly/3sUuPup. Free regular bus & bridging bus svcs are still available. - SMRT
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