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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: #january
@apkpurechannel · Post #2836 · 24.01.2026 г., 11:19
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@Dailyrss · Post #13245 · 31.01.2026 г., 00:45
Wikipedia每日一图（#January 31, 2026）https://ift.tt/129ov6E Isambard Kingdom Brunel standing before the launching chains of the SS Great Eastern. The ship was launched on this day in 1858.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13244 · 30.01.2026 г., 00:45
Wikipedia每日一图（#January 30, 2026）https://ift.tt/Z0TVbvJ Lake Baikal in winter. Ice ridges near Olkhon island in Pribaikalsky National Park.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13243 · 29.01.2026 г., 00:45
Wikipedia每日一图（#January 29, 2026）https://ift.tt/YMrOJT0 Great Cormorant (Phalacrocorax carbo), Little Egret (Egretta garzetta) and Gadwall (Mareca strepera) in misty Taudaha Lake during winter, near Kathmandu, Nepal.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13242 · 28.01.2026 г., 00:45
Wikipedia每日一图（#January 28, 2026）https://ift.tt/2EM6iKC Sunset over the ice of Brofjorden in Sandvik, Brastad, Lysekil Municipality, Sweden. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13241 · 27.01.2026 г., 00:45
Wikipedia每日一图（#January 27, 2026）https://ift.tt/Msrmcyu “Selection” of Hungarian Jews on the ramp at Auschwitz-II-Birkenau in German-occupied Poland, May/June 1944, during the final phase of the Holocaust. Jews were sent either to forced labor or the gas chambers. 81 years ago today, on January 27, 1945, Auschwitz was liberated by the Red Army. Today is also International Holocaust Remembrance Day.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13240 · 26.01.2026 г., 00:45
Wikipedia每日一图（#January 26, 2026）https://ift.tt/EsDR49p Apple orchards after snowfall in Sangla in the northern Indian state of Himachal Pradesh. India has the second largest area under apple cultivation in the world and is the fifth largest producer of the fruit globally. More than 90% of India's apple production comes from just two of its northern Himalayan states: Jammu and Kashmir, and Himachal Pradesh. Today is Republic Day in India.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13239 · 25.01.2026 г., 00:45
Wikipedia每日一图（#January 25, 2026）https://ift.tt/JzivhFB Window in a former joinery workshop in Beilstein, Germany. Hop has grown into the workshop and has draped its tendrils before this window.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13238 · 24.01.2026 г., 00:45
Wikipedia每日一图（#January 24, 2026）https://ift.tt/uP9JQ1U The entrance of the locomotive Hrvatske Željeznice class 2044 with a local train to Zagreb between Turčin and Sveti Ilija, Croatia. July 2009. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13237 · 23.01.2026 г., 00:45
Wikipedia每日一图（#January 23, 2026）https://ift.tt/oNaVYGk Northwest view of Yugar village and fields, viewed from Phuktal Gompa. Elevation 3,850 m (12,630 ft)), on the left bank of the Tsarap River (elev. 3,820 m (12,530 ft)). In this arid terrain above the tree line, villagers rely on water from the snow-fed Phu Nala (flowing from centre to bottom) for their fields. Zanskar, Ladakh, India. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13236 · 22.01.2026 г., 00:45
Wikipedia每日一图（#January 22, 2026）https://ift.tt/4AIKm1L Aerial view of 2023 Bishwa Ijtema in Bangladesh. With 5 million adherents, Bishwa Ijtema is the second-largest Muslim gathering in the world.. 了解更多 . #Wikipedia每日一图
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