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
Token LIBRA Crashes 94% in Hours
🚨 Argentine President Javier Milei's promoted token LIBRA plummeted 94% shortly after launch, with insiders cashing out over $107 million. Initial market cap peaked at $4.56 billion but has dropped to $174 million. The token was marketed as a tool to boost Argentina's economy. Milei later removed his promotional post and blamed political opponents for the fallout.
📉 Link to details: Full story
#Crypto#Argentina#LIBRA#Trading#MarketCrash#TokenSale#InsiderTrading#ETH#VC
#Crypto#Argentina#LIBRA#Trading#MarketCrash#TokenSale#InsiderTrading#ETH#VC
🚀 Covenant AI Founder Sells 37,000 TAO Tokens
According to Foresight News, crypto influencer Jesus Martinez has reported that Covenant AI founder Sam Dare sold 37,000 TAO tokens six hours ago.
#CovenantAI#TAOTokens#CryptoNews#SamDare#CryptoInfluencer#JesusMartinez#TokenSale
🚀 Blockchain Energy is LIVE! 🔥
The world’s first physical blockchain product is here—introducing Blockchain Energy! 💥 Our website and ICO are officially LIVE, and early buyers can now purchase BET tokens at.
www.blockchainenergy.co.uk.
💰 Buy early before prices increase! Price alerts and community updates will be shared exclusively on our Telegram group – join now: https://t.me/+vLcj22SyWvY2ZDg0
🔗 Powering the future of blockchain with real-world energy!
#BlockchainEnergy#BETToken#CryptoLaunch#ICO#BlockchainRevolution#CryptoCommunity#Web3#CryptoInvesting#TokenSale#CryptoPresale
Errol Musk's Token Plans to Raise Millions
Errol Musk aims to raise $150-$200 million through the "Musk It" memecoin, leveraging his family name. Proceeds will support the newly established Musk Institute. Recently, the crypto space has faced various rug pulls linked to projects of the same name. 🪙💰Read more here
#Musk#Memecoin#Crypto#ETFs#USDC#Ethereum#DeFi#Blockchain#Investment#Finance#ElonMusk#Bitcoin#WhaleAlert#RugPull#MuskInstitute#CryptoMarket#DigitalAssets#TokenSale#Cryptocurrency#MarketTrends#VC
$1M Raised for E3 Enclave Project
Open-source protocol E3 Enclave successfully raised $1M during its public sale, achieving a $60M fully diluted valuation. The sale was conducted on the Legion platform.
Meanwhile, AI-focused protocol BAD Coin secured $1.25M at a $12.5M valuation, emphasizing growth in the AI and crypto sectors.
Read more: E3 Enclave | BAD Coin
#E3Enclave#BADCoin#AI#Crypto#PublicSale#Blockchain#Funding#Legion#Investment#TechNews#Finance#DeFi#Innovation#Startups#VentureCapital#CryptoNews#TokenSale#Valuation #2025 #Oklahoma#Fraud
Major Crypto Transactions and Trends Unveiled
🚨 A massive transfer of 25,000,000 #XRP ($81.44M) has been reported from #Upbit to an unknown wallet. For details, visit Whale Alert.
The Ethereum Foundation sold 100 ETH for 336,000 DAI amidst discussions on staking options, highlighting ongoing regulatory concerns voiced by Vitalik Buterin in a recent tweet here.
Additionally, Bitcoin volatility spikes as the price reaches $109K, correlating with a surge in investment inflows totaling $2.2 billion this past week, largely driven by euphoria surrounding the Trump inauguration. For more on the latest market trends, refer to CoinShares report.
#XRP#Bitcoin#Ethereum#Crypto#Investment#Regulation#DeFi#Funding#VC#Upbit#TokenSale#CryptoMarket#WhaleAlert#Trump#Hawala#MemeToken#Finance#DAI#CryptoTrends#Layergg#Grix