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
Top 10 Benefits of Peanuts 🥜
(Groundnut or Mungfali)
1. Good for healthy Brain(Omega 3 & 6 fatty acids)
2. Protects from Heart disease
3. Fights Stomach Cancer
4. Good for healthy Hair Growth
5. Reduces bad Cholesterol
6. Fights against Depression
7. Good for healthy & Glowing Skin
8. Fights free-radicals (Anti-inflammatory)
9. Rich in Proteins & Fats(good)
10. Contains ample fiber
Nutrients available : Proteins, Vit. E, Minerals like Potassium, Magnesium, Phosphorus, Sodium & Zinc. Omega 3 & 6 fatty acids.
Nutritional Value per 100g
Calories : 567kcal
Protein : 26gm
Fats : 49gm
Bottom line : There's no reason not to munch on this cheaply available yet full of nutrition, crunchy & nutty peanuts. It's a boon for optimum health & wellness.
#foods
🚨Source : @HeathSafetyTps
Herbal Tea
Herbal tea is a decoction or infusion of herbs & spices.
There is a herbal tea for everything. Green tea is a great energy-boosting alternative to coffee, chamomile helps you go to sleep, fennel & peppermint teas aid digestion. Others are ginger, tulsi, even pepper & cinnamon, all extremely healthy.
So, make a good habit of drinking herbal teas.
#foods
⚠️ Also look at: Benefits of GINGER TEA
🚨Source: @HeathSafetyTps
Ginkgo Biloba - 🧠 herb
It's a leaf of the ginkgo tree, which is native to China & one of the oldest plants on the planet, having potential to treat Alzheimer's disease & age-related mental decline.
It's believed that it works by thinning the blood & thereby improving oxygen flow to the brain. The brain is a glutton for oxygen, so it's possible that even a slight lack of circulation can affect its performance.
Gingko improves both attention & memory, but as a brain booster for people with normal mental abilities, it remains controversial.
#foods
🚨Source: @HeathSafetyTps
Diet tips for Gum Health
What a person eats can directly affect the health of their teeth & gums. The foods that should be incorporated in your diet:
1. High-fiber fruits & vegetables, as these can help clean up the mouth, especially Apple🍎 & Ginger
2. Black & Green teas, which help reduce bacteria
3. Dairy products (such as milk, cheese, & yogurt) , as these foods help increase saliva production
4. Foods that contain fluoride, which include water & some poultry & seafood products
5. Sugar-free gum, as chewing it will increase saliva production
It's best to avoid these foods & beverages:
1. Alcohol , as it can dry out the mouth
2. Starchy foods that become stuck in the teeth
3. Sticky candies & sweets
4. Carbonated soft drinks that contain phosphoric & citric acids as well as sugar
#foods
🚨Source : @HeathSafetyTps
HEALTH TIPS:
Liver Detox Juice
Whenever you've a big night out or a heavy cheat meal, you can try a big juice full of fruit & vegetables with liver loving nutrients.
Relish this simple liver cleansing juice...
1 large carrot
1 beetroot
1 green apple
2 cups kale or spinach
1 grapefruit or orange
1 knob of ginger
1/2 cup water
Clean the fruit & vegetables before juicing.
Dilute with half a cup of water or add ice to your juice.
#foods
Source: @HeathSafetyTps
HEALTH TIPS:
Ginkgo Biloba - 🧠 herb
It's a leaf of the ginkgo tree, which is native to China & one of the oldest plants on the planet, having potential to treat Alzheimer's disease & age-related mental decline.
It's believed that it works by thinning the blood & thereby improving oxygen flow to the brain. The brain is a glutton for oxygen, so it's possible that even a slight lack of circulation can affect its performance.
Gingko improves both attention & memory, but as a brain booster for people with normal mental abilities, it remains controversial.
#foods
Join our community today @HeathSafetyTps
Please share now
Diet tips for Healthy Gum
What a person eats can directly affect the health of their teeth & gums. The foods that should be incorporated in your diet:
1. High-fiber fruits & vegetables, as these can help clean up the mouth, especially Apple🍎 & Ginger
2. Black & Green teas, which help reduce bacteria
3. Dairy products (such as milk, cheese, & yogurt) , as these foods help increase saliva production
4. Foods that contain fluoride, which include water & some poultry & seafood products
5. Sugar-free gum, as chewing it will increase saliva production
It's best to avoid these foods & beverages:
1. Alcohol , as it can dry out the mouth
2. Starchy foods that become stuck in the teeth
3. Sticky candies & sweets
4. Carbonated soft drinks that contain phosphoric & citric acids as well as sugar
#foods
Join 👉🏻@HealthSafetyTips