SG MRT Updates
@sgmrt · Post #2390 · 19.07.2025 г., 06:49
[BPLRT]: Due to a train fault, trains are moving slower towards #ChoaChuKang on Service A. We are investigating the fault. https://bit.ly/450rFrj - SMRT
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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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SG MRT Updates
@sgmrt · Post #1961 · 03.06.2024 г., 12:39
[UPDATE] [NSL] : South bound train service from #ChoaChuKang to #Woodlands has resumed. Free Regular Bus and Bridging Bus have ceased. - SMRT
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SG MRT Updates
@sgmrt · Post #1960 · 03.06.2024 г., 12:14
[UPDATE] [NSL] : South bound train service from #ChoaChuKang to #Woodlands has resumed. Free Regular Bus and Bridging Bus Services are still available between #ChoaChuKang and #Woodlands. - SMRT
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SG MRT Updates
@sgmrt · Post #1959 · 03.06.2024 г., 11:54
[UPDATE] [NSL]North bound trains from #Woodlands towards #ChoaChuKang is in service. - SMRT
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SG MRT Updates
@sgmrt · Post #1958 · 03.06.2024 г., 11:49
[UPDATE] [NSL]Due to traction power fault, there is no South bound train service from #ChoaChuKang to #Woodlands. Free Regular Bus and Bridging Bus Services are available between #ChoaChuKang and #Woodlands, passengers are advised to take alternative lines via [TEL] & [CCL] line. - SMRT
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SG MRT Updates
@sgmrt · Post #1617 · 05.02.2023 г., 23:53
[NSL] UPDATE: Fault cleared, train services are progressively being restored. You may still experience crowding at some stations. Free regular bus & free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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SG MRT Updates
@sgmrt · Post #1615 · 05.02.2023 г., 23:39
[NSL] UPDATE: Fault cleared, train services are progressively being restored. Pls add 5mins train travel time btwn #Yishun and #ChoaChuKang. Free regular bus & free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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SG MRT Updates
@sgmrt · Post #1614 · 05.02.2023 г., 23:23
[NSL] UPDATE: Fault cleared, train services are progressively being restored. Pls add 15mins train travel time btwn #Yishun and #ChoaChuKang. Free regular bus and free bridging bus services are still available btwn #ChoaChuKang and #Yishun. - SMRT
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SG MRT Updates
@sgmrt · Post #1613 · 05.02.2023 г., 23:10
[NSL]: UPDATE: Due to a track fault, pls add 25mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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SG MRT Updates
@sgmrt · Post #1612 · 05.02.2023 г., 23:10
[NSL]: UPDATE: Due to a track fault, pls add 25mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus and free bridging bus services are available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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SG MRT Updates
@sgmrt · Post #1611 · 05.02.2023 г., 22:53
[NSL]: UPDATE: Due to a track fault, pls add 15mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may also take alternative line to city area. - SMRT
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SG MRT Updates
@sgmrt · Post #1610 · 05.02.2023 г., 22:53
[NSL]: UPDATE: Due to a track fault, pls add 15mins train travel time btwn #ChoaChuKang and #Yishun. Free regular bus is available btwn #ChoaChuKang and #Yishun. You may take TEL or other alternative lines to city area. - SMRT
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