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
Binance Labs Invests in Pluto Studio!
#BinanceLabs has led an investment round for Pluto Studio, the #GameFi publishing platform that launched Web3 Game Catizen😼
Catizen is a groundbreaking gaming bot on Telegram that seamlessly integrates Telegram with the #TON blockchain.
Today Catizen announced the news about airdrop:
Decrypt reports that Pluto Studio has secured funding from The Open Platform (TOP) as they prepare for a TON token airdrop. Catizen has now reached 25 million players and will airdrop 43% of its total token supply on the TON blockchain.
Also today Pavel Durov announced the greeting post:
🐱 Catizen is a mini game on Telegram with over 26 million players. The game has already earned $16 million (!) from in-app purchases and donated 1% of it to rescue stray cats
😱
😄 Catizen introduced millions of people to blockchain, because it uses TON-based smart contracts for its in-game rewards. Their team also built tools for other developers to easily launch their games on Telegram and TON 🤑
says Pavel Durov
So many good news for one day! 😻
❤️
Let's keep playing for the airdrop🪂,
Heal the world! 🌍
🎉Catizen x Zircuit Launchpool is Live
We're excited to announced launch Zircuit (ZRC) as the inaugural project on the Catizen Launchpool!🎆🪙
How to Earn ZRC?
💰 Stake CATI and Cats to Earn ZRC: Zircuit is an AI-secured, Zero-Knowledge Layer 2 solution, fully #EVM-compatible, and supported by #BinanceLabs, #Pantera, #DragonflyCapital, among others. With $1.8B in TVL and a new liquidity hub, early adopters are in for a rewarding journey!
Launchpool Details:
• Period: 2024-10-28 00:00 (UTC) to 2024-11-04 00:00 (UTC)
• Token Name: $ZRC
• Total Supply: 10,000,000,000 ZRC
• Token Rewards: ≈$1,500,000 in ZRC
• Launchpool Allocation: 8,333,333 ZRC
Pool Information
🪙CATI Pool:
• Reward Proportion: 85%
• Reward Amount: $1,275,000 in ZRC
• Stake Range: 1 to 2000 CATI
• Settlement: Every hour based on staked CATI share
😺Cat Pool:
• Reward Proportion: 15%
• Reward Amount: $225,000 in ZRC
• Eligibility: Cats above level 300 only
• Settlement: Hourly, with levels converted to USD for calculations
🐾Don’t miss out on this incredible chance to grow your rewards with Zircuit! This is just the beginning of their ambitious plan to enhance CATI token value✨
#TON#CATI#Pool#Zircuit