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Concurrency & performance

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

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Concurrency & performance easy

Synchronize Threads with a Barrier in Python

Demonstrates using threading.Barrier to synchronize multiple threads at phase boundaries, ensuring all workers wait for each other before proceeding.

threading synchronization barrier
Python 
import threading
import time
from random import randint

def worker(barrier, worker_id):
    for phase in range(3):
        time.sleep(randint(1, 3))
        print(f"Worker {worker_id} finished phase {phase} at {time.time():.2f}")
        barrier.wait()
    print(f"Worker {worker_id}: all phases complete")

if __name_…
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