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Concurrency & performance

asyncio, threading, multiprocessing, and profiling-friendly performance patterns.

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Concurrency & performance easy

Run Background Tasks with asyncio.create_task in Python

Create background tasks in an asyncio event loop with asyncio.create_task and run them concurrently using asyncio.gather.

asyncio async concurrency
Python 
import asyncio
import time

async def background_worker(name, duration):
    """Simulates a long-running background task."""
    print(f"{name} started at t={time.monotonic():.1f}")
    await asyncio.sleep(duration)
    print(f"{name} finished at t={time.monotonic():.1f}")

async def main():
    print(f"Main starting …
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