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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#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
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INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
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#10DAYS PLAN👇👇
INVEST $10,000 GET $200,000
INVEST $20,000 GET $400,000
INVEST $50,000 GET $1,000,000
SEND YOUR DETAILS
FULL NAME, NATIONALITY ,EMAIL ADDRESS, BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
Bitcoin✔️✔️
USDT✔️✔️
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PROMO PLAN
INVEST $2000 GET $40,000
INVEST $4000 GET $80,000
INVEST $5000 GET $100,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $200,000
INVEST $20,000 GET $400,000
INVEST $50,000 GET $1,000,000
SEND YOUR DETAILS
FULL NAME, NATIONALITY ,EMAIL ADDRESS, BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
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#5DAYS PLAN👇👇
PROMO PLAN
INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
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TRADING INVESTMENT PLAN
#5DAYS PLAN👇👇
PROMO PLAN
INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
Bitcoin✔️✔️
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Dm me now for your trading plan
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Those who want to join my investment plan account
#6DAYS PLAN👇👇
PROMO PLAN
INVEST $2000 GET $40,000
INVEST $4000 GET $80,000
INVEST $5000 GET $100,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $200,000
INVEST $20,000 GET $400,000
INVEST $50,000 GET $1,000,000
SEND YOUR DETAILS
FULL NAME, NATIONALITY ,EMAIL ADDRESS, BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
Bitcoin✔️✔️
USDT✔️✔️
TRADING INVESTMENT PLAN
If you know you have $1000 and above this is your opportunity to make it big in our Investment plan. Offer closing soon
#5DAYS PLAN👇👇
PROMO PLAN
INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
Bitcoin✔️✔️
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TRADING INVESTMENT PLAN
If you know you have $1000 and above this is your opportunity to make it big in our Investment plan. Offer closing soon
#5DAYS PLAN👇👇
PROMO PLAN
INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
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TRADING INVESTMENT PLAN
If you know you have $1000 and above this is your opportunity to make it big in our Investment plan. Offer closing soon
#5DAYS PLAN👇👇
PROMO PLAN
INVEST $1000 GET $15,000
INVEST $2000 GET $30,000
INVEST $3000 GET $45,000
INVEST $4000 GET $60,000
INVEST $5000 GET $75,000
#10DAYS PLAN👇👇
INVEST $10,000 GET $150,000
INVEST $20,000 GET $300,000
INVEST $50,000 GET $800,000
FOR INTERESTED INVESTORS SEND ME YOUR FULL NAME, CONTACT NUMBER, NATIONALITY , EMAIL ADDRESS AND BTC OR USDT WALLET ADDRESS FOR RECEIVING RETURNS
Payment Method
👇👇
Bitcoin✔️✔️
USDT✔️✔️
Dm me now for your trading plan
@GaryGoldtrader010
@GaryGoldtrader010
Connect the admin on WhatsApp
👇👇👇👇👇👇👇👇👇👇👇👇
https://wa.me/56964558286