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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: #november
@Dailyrss · Post #13184 · 30.11.2025 г., 00:45
Wikipedia每日一图（#November 30, 2025）https://ift.tt/WxVhM4m Vineyard worker at Guadalupe Valley, Baja California, Mexico, where 95% of Mexican wines are produced.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13183 · 29.11.2025 г., 00:45
Wikipedia每日一图（#November 29, 2025）https://ift.tt/t6pLEjM The Sabha Mandap of the Sun Temple, Modhera, India.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13182 · 28.11.2025 г., 00:45
Wikipedia每日一图（#November 28, 2025）https://ift.tt/fvoiXJ0 Port and lighthouse overnight storm with lightning in Port-la-Nouvelle in the Aude department in southern France.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13181 · 27.11.2025 г., 00:45
Wikipedia每日一图（#November 27, 2025）https://ift.tt/Wg6MXxG A shattered ceiling light fixture on a bamboo floor mat. The lamp was a semi flush mounted light fixture with a shallow glass dome of clear glass coated with white glass on the inside. In the fixture are LED light bulbs with E27 Edison screw. The hook in the ceiling suddenly came lose one day and the lamp crashed to the floor in an apartment in Brastad, Lysekil Municipality, Sweden. Photographed in natural light from the window. Focus stacked from 10 photos.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13180 · 26.11.2025 г., 00:45
Wikipedia每日一图（#November 26, 2025）https://ift.tt/bPYOzSQ Two wood knots which resemble two eyes, a simple example of pareidolia. Detail of a wooden fence in Beilstein, Germany.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13179 · 25.11.2025 г., 00:45
Wikipedia每日一图（#November 25, 2025）https://ift.tt/ix76pId "Plate Dance" (Tari Piring) performance from Sumatra (Indonesia) that may include dancing on broken plates and 'face washing' with plate shards.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13178 · 24.11.2025 г., 00:45
Wikipedia每日一图（#November 24, 2025）https://ift.tt/MOdV2wL View of the frozen Knollenteich in Hof (Saale), Bavaria, Germany. The cube-shaped concrete water drainage system is completely surrounded by the frozen pond.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13177 · 23.11.2025 г., 00:45
Wikipedia每日一图（#November 23, 2025）https://ift.tt/9zNt12M A full-size test article of the SpaceX Crew Dragon named DragonFly fires its eight SuperDraco engines in a development test of its ability to land with the accuracy of a helicopter using only the thrusters. The company conducted two tethered tests vehicle attached to a crane so engineers could refine the landing software and systems on the spacecraft. SpaceX envisions returning people to Earth from space on the power of thrust instead of beneath parachutes. SpaceX, in partnership with NASA’s Commercial Crew Program, is developing the Crew Dragon and Falcon 9 integrated system to take astronauts to launch astronauts to the International Space Station from the United States.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13176 · 22.11.2025 г., 00:45
Wikipedia每日一图（#November 22, 2025）https://ift.tt/o9xbWOA Geoffroy's tamarin (Saguinus geoffroyi) Gatun Lake, Panama. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13175 · 21.11.2025 г., 00:45
Wikipedia每日一图（#November 21, 2025）https://ift.tt/aSuYGZi Small grove of trees at sunset in late autumn (Massenbach, Schwaigern, Germany).. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13174 · 20.11.2025 г., 00:45
Wikipedia每日一图（#November 20, 2025）https://ift.tt/FVxz1SY Geological fieldworks, underground in the Estonian oil shale mine to study the variable mineralogical and chemical composition and microstructure in the different layers of the oil shale profile. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13173 · 19.11.2025 г., 00:45
Wikipedia每日一图（#November 19, 2025）https://ift.tt/MmF9c1k Le concert champêtre (English: Woodland Music-makers), a 1857 oil-on-canvas by the French painter Jean-Baptiste-Camille Corot. 了解更多 . #Wikipedia每日一图
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