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
Now that's trading 👆🔥🔥🔥
Reached 9th TP in just 6 hours in the VIP HTL channel!
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
🏆Flex your skills with Propheta AI Analyzer: smart AI analysis flips the market upside down, fast tweaks fit any style, and it’s your wingman for snagging top-tier trades! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#buycrypto#buyeth#bitcoin
Oops, we did it again 🤣
Reached 9th TP in the VIP HTL channel!
$203 in profits with a 5% entry and a $1000 deposit!
That's why we call it the "Money Printer" 💴💷💵ACCESS TO MANUAL TRADING for 70usdt/month
💪Rule the market with Propheta AI Signals: ultra-sharp alerts, full-on process automation, and a killer Cornix synergy — your fast track to max profits! GET THE ACCESS TO AI SIGNALS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#buyeth#cryptobot#AItrader
Now that's trading 👆🔥🔥🔥
Reached 9th TP in the VIP HTL channel!
With a 5% entry and a $1000 deposit, you could've earned $202!
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
👉 Join us and earn big!
Start here: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptotrading#buyeth#buybtc
Reached 9th TP in the VIP HTL channel!
You could've earned $214 with a 5% entry and a $1000 deposit!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
👉 Time to start earning for real!
Join us >>> t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptochannel#buyeth#bitcoin
👆 Propheta living up to its name yet again 🔮
Reached 9th TP in just 5 hours in the VIP HTL channel!
With a 5% entry and a $1000 deposit, you could've earned $203!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 Get dozens of signals like these daily!
Subscribe now >>> t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptomarket#buyeth#indicator
Reached 9th TP in just 3 hours in the VIP HTL channel!
You could've earned $202 with a 5% entry and a $1000 deposit!
🤑 All this profit could have been yours! 🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 We ain't just showing our results, we can show you the results of our VIP subscribers as well! Check them out: @propheta_reviews
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#autotrading#buyeth#signals
👆 OMG! Would you look at that 👀
Reached 9th TP in just 16 hours in the VIP PRO channel!
$413 in profits with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 Multiplying deposits every day!
Not convinced? Contact us for a free trial - @propheta_help
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#buyeth#tradingindicator#eth
👀 Well, would you look at that! 👆
Reached 9th TP in the VIP PRO channel!
Using a 5% entry you could've earned $404 with a $1000 deposit
Feels good to be a Propheta VIP, man... 🏖ACCESS TO MANUAL TRADING for 70usdt/month
👉 Multiplying deposits every day!
Not convinced? Contact us for a free trial - @propheta_help
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#cryptobot#buyeth#cryptocurrency
👆 OMG! Would you look at that 👀
Reached 9th TP in the VIP HTL channel!
$303 in profits with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
📊Dominate the market with Propheta AI Analyzer: AI uncovers hidden patterns with razor-sharp analysis, adapts on the fly with slick customization, and delivers next-level pair hunting — your edge for strategic supremacy! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#bitcoinnews#buyeth#AItrade
Oops, we did it again 🤣
Reached 9th TP on our #ENAUSDT trade! 🔥🔥🔥
With a 5% entry and a $1000 deposit, you could've earned $442!
VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month
💰Turn data into gains with Propheta AI Analyzer: deep AI analysis spots trends with surgical precision, tweaks in seconds to your goals, and pair hunting pumps your trading to the next level — this is the evolution of the game! GET THE ACCESS
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#autotrading#cryptonews#buyeth
👆 OMG! Would you look at that 👀
Reached 9th TP in 4 hours on our #JELLYJELLYUSDT trade! 🔥🔥🔥
Easy $169 with a 5% entry and a $1000 deposit!
ACCESS TO MANUAL TRADING for 70usdt/month
👉 In our VIP community, not only will your deposit grow, but your skill as a trader as well!
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#AItrading#buycrypto#buyeth
👀 Well, would you look at that! 👆
#JELLYJELLYUSDT has achieved 9th TP in 2 days in our VIP PRO channel!
Every day we're on fire! 🔥🔥🔥ACCESS TO MANUAL TRADING for 70usdt/month
👉 We will keep posting about how we earn money. Will you keep watching how someone else does it, or start earning yourself? Subscribe using our telegram bot: t.me/ProphetaAdmin_bot
Register and get bonuses up to $6,000
Binance | OKX | ByBit👈🏻click!
#buyeth#btc#AItrading