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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: #railways
@developmentnewsindia · Post #44423 · 05.05.2026 г., 04:33
Indian Railways has officially issued the Gazette Notification for operationalizing the new South Coast Railway Zone. 🔹 Divisions included: • Visakhapatnam • Vijayawada • Guntur • Guntakal #Railways
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@developmentnewsindia · Post #44382 · 04.05.2026 г., 04:04
South Central #Railways seeks ~1,125 acres in Telangana for 4 mega coaching terminals around Hyderabad—sites at Dabilpur (250 acres), Nagulapalli (325), Jukkal (300) and Cherlapalli expansion (250). Plan aims to decongest Secunderabad/Hyderabad/Kacheguda hubs.
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@developmentnewsindia · Post #44336 · 02.05.2026 г., 12:35
Indian Railways Approves ₹895.30 Crore Projects for Power System Upgradation and Bridge Infrastructure ₹671.72 Cr Kolkata Metro Upgrade with 7 New Traction Substations and Power System Augmentation from 11KV to 33 KV for Higher Frequency & Capacity Expansion Approvals to Pave Way for 2.5-Minute Metro Headway Upgrade from Existing 5-Minute Operations, Boosting Line Capacity to Meet Rising Passenger Demand ₹223.58 Cr Adra Bridge Project to Strengthen Critical Freight Route and Industrial Connectivity #Railways
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@developmentnewsindia · Post #43987 · 23.04.2026 г., 16:10
🇮🇳The first prototype of Vande Bharat Cargo has reached Lalitpur Junction & is gearing up for trials.🚆#Railways
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@developmentnewsindia · Post #43761 · 18.04.2026 г., 05:28
Airport-Style Revamp For New Delhi Railway Station With Air Concourse, Elevated Roads. Metro type Entry Gates Source #Railways
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@axelotlogistics · Post #678 · 17.12.2023 г., 18:03
«Узтемирйулконтейнер» преобразовался в «Темирйулкарго»🇺🇿🚆 Не только новое название, но и новые услуги: • по управлению грузоперевозками «от двери до двери» • по формированию логистических центров и терминалов • по созданию логистических цепочек поставок грузов с функцией оперирования мультимодальными логистическими терминалами за рубежом Очень интересно, что из этого получится🚂 #UZBEKISTAN#RAILWAYS
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@developmentnewsindia · Post #44106 · 27.04.2026 г., 06:15
Sikkim’s first railway station Rangpo Terminal takes shape on the Sivok Rangpo line 🚄🇮🇳 ▪️ B+G+5 with local Architecture on 16.5 acres ▪️ Cost : ₹335+ Cr ▪️ Promoter : Northeast Frontier Railway Division ▪️ Contractor : IRCON International Limited ▪️ Status : Under Construction #Railways#Infra
@developmentnewsindia · Post #43785 · 18.04.2026 г., 12:24
601 KM Rail Multi-tracking in UP & Andhra Pradesh #Railways#Infra
@developmentnewsindia · Post #43248 · 05.04.2026 г., 08:41
Railways has set a target to complete the Detailed Project Reports (DPRs) for three bullet train corridors by March 2027. These include the Hyderabad-Chennai, Hyderabad-Bengaluru and Patna-Siliguri. #Railways#Infra
@developmentnewsindia · Post #44064 · 25.04.2026 г., 14:13
#Railways Minister Ashwini Vaishnaw inaugurates Aditya, BEML’s self reliant high speed bullet train plant in Bengaluru 🚄🇮🇳 The facility will build indigenous B28 trains and future B35 next gen sets, boosting Bharat’s push for advanced, homegrown high speed rail. #aatmarnirbharbharat Ashvini Vaishnaw: India’s Aatmanirbhar bullet train B28 is being developed with manufacturing at BEML’s Aditya plant equipped with advanced, high precision machines, including robotic laser welding systems. 🚄🇮🇳
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@developmentnewsindia · Post #43596 · 14.04.2026 г., 14:21
🇮🇳🤝🇧🇩 Bangladesh is moving ahead with a significant upgrade of its railway network, with plans to procure 200 broad-gauge passenger coaches from India in a deal to strengthen capacity and improve services across key routes. #Railways Minister Shaikh Rabiul Alam informed Parliament that deliveries are scheduled to begin in 2026 and will continue in phases until December 2027 #Exports https://swarajyamag.com/news-brief/bangladesh-to-induct-200-indian-broad-gauge-coaches-by-2027-signals-wider-fleet-expansion
@developmentnewsindia · Post #44043 · 24.04.2026 г., 19:44
Indian #Railways is delivering transformation at scale: 55,000 km of track renewed since 2014, 90% fewer rail failures, and track running at 110 kmph+ has risen from 40% to 80%. 🛤🚉 Indian Railways carries 25,000+ trains and 20 million+ passengers daily. Over 80,000 km of stronger rail network, 44,000 km of upgraded sleepers, and 8,00,000 machine-hours logged. When the backbone improves, the impact multiplies across safety, punctuality, logistics, and productivity. That is nation-building in motion. #Reforms#Infra