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
⬛️Iqtisodiy faktlar...
🇺🇸AQShdagi Buyuk retsessiya: sabablari, oqibatlari va saboqlari
💵Ushbu iqtisodiy beqarorlik davri 1930-yillardagiBuyuk Depressiyadan keyingi eng jiddiy inqiroz deb hisoblanadi. “Buyuk retsessiya” atamasi 2007-yil dekabridan 2009-yil iyunigacha davom etgan AQSh tanazzuliga ham, 2009-yilda sodir bo‘lgan jahon iqtisodiytanazzulga ham aloqador.
🔎Batafsil
🚩 Великая рецессия в США: причины, последствия и уроки
📊Этот период экономической нестабильности считается самым серьёзным кризисом со времён Великой депрессии 1930-х годов. Термин «Великая рецессия» относится как к рецессии в США, продолжавшейся с декабря 2007 по июнь 2009 года, так и к глобальному экономическому спаду, который последовал в 2009 году.
🔎Подробнее
#GraduateSchool#Recession#Decrease#Economy
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📕Iqtisodiy atamalar...
📈 Ushbu davrda kompaniyalar xarajatlarni qisqartirishi, iste’molchilar talabi pasayishi, ishsizlik ortib borishi kuzatiladi, bu esa mamlakatning umumiy iqtisodiy iqlimiga salbiy ta’sir ko‘rsatadi.
🏭 Retsessiya iste’mol xarajatlarining pasayishi, kreditshartlarining yomonlashishi, tashqiiqtisodiy zarbalar yoki investitsiyalarning keskin kamayishi kabi turli omillar tufayli yuzaga kelishi mumkin.
📊 During this time, companies reduce spending, consumer demandfalls, and unemploymentrises, negativelyaffecting the country’s overall economic climate.
⬇️ A recession can be triggered by various factors, such as lower consumer spending, worsening creditconditions, externaleconomic shocks, or a sharp drop in investment.
#GraduateSchool#Recession#Decrease#Economy
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#common_mistakes
#decrease
#in#of
@fluencyinenglish
معمولاً از عبارت زیر برای کاهش در چیزی صحبت می کنیم.
✔️ decrease in sth
با این حال،معمولاً از عبارت زیر برای کاهش مقدار بکار می بریم.
✔️ decrease of sth
مثال:
• There has been a 2% decrease in the rate of unemployment.
2 درصد کاهش در نرخ بیکاری وجود داشته است.
• There has been a decrease of 2%.
2 درصد کاهش وجود داشته است.
• There was a slight decrease in his weight after a week of dieting.
بعد از یک هفته رژیم، یک کاهش کوچک در وزنش وجود داشت.
• Any decrease in tourism could have a serious effect on the local economy.
هر گونه کاهشی در گردشگری میتوانست اثری جدی بر اقتصاد محلی بگذارد.
• The report's finding on the decrease in violent crime supports the police chief's claims.
• We have seen a marked decrease in the number of accidents since these safety measures were introduced.
از وقتی این تدابیر امنیتی ارائه شدند، کاهش شدیدی در تعداد تصادفات مشاهده شده است.
• We've noticed a steady decrease in jobs available for new graduates in the industry.
@fluencyinenglish
#common_mistakes
#decrease
#in#of
@fluencyinenglish
معمولاً از عبارت زیر برای کاهش در چیزی صحبت می کنیم.
✔️ decrease in sth
با این حال،معمولاً از عبارت زیر برای کاهش مقدار بکار می بریم.
✔️ decrease of sth
مثال:
• There has been a 2% decrease in the rate of unemployment.
2 درصد کاهش در نرخ بیکاری وجود داشته است.
• There has been a decrease of 2%.
2 درصد کاهش وجود داشته است.
• There was a slight decrease in his weight after a week of dieting.
بعد از یک هفته رژیم، یک کاهش کوچک در وزنش وجود داشت.
• Any decrease in tourism could have a serious effect on the local economy.
هر گونه کاهشی در گردشگری میتوانست اثری جدی بر اقتصاد محلی بگذارد.
• The report's finding on the decrease in violent crime supports the police chief's claims.
• We have seen a marked decrease in the number of accidents since these safety measures were introduced.
از وقتی این تدابیر امنیتی ارائه شدند، کاهش شدیدی در تعداد تصادفات مشاهده شده است.
• We've noticed a steady decrease in jobs available for new graduates in the industry.
@fluencyinenglish
🚀 Bitcoin(BTC) Drops Below 72,000 USDT with a 1.23% Decrease in 24 Hours
On Apr 12, 2026, 01:42 AM(UTC). According to Binance Market Data, Bitcoin has dropped below 72,000 USDT and is now trading at 71,964.390625 USDT, with a narrowed 1.23% decrease in 24 hours.
#Bitcoin#BTC#USDT#Binance#cryptocurrency#marketdata#price drop #decrease
🚀 Bitcoin(BTC) Drops Below 71,000 USDT with a 1.14% Decrease in 24 Hours
On Apr 09, 2026, 07:21 AM(UTC). According to Binance Market Data, Bitcoin has dropped below 71,000 USDT and is now trading at 70,975.132813 USDT, with a narrowed 1.14% decrease in 24 hours.
#Bitcoin#BTC#cryptocurrency#USDT#Binance#marketdata#priceupdate#decrease#24hours
🚀 Bitcoin(BTC) Drops Below 71,000 USDT with a 2.59% Decrease in 24 Hours
On Apr 12, 2026, 13:01 PM(UTC). According to Binance Market Data, Bitcoin has dropped below 71,000 USDT and is now trading at 70,972.90625 USDT, with a narrowed 2.59% decrease in 24 hours.
#Bitcoin#BTC#USDT#cryptocurrency#marketupdate#Binance#pricechange#decrease#24hour