gistfile1.py

import gevent.monkey
gevent.monkey.patch_all()

import time

import pymongo
connection = pymongo.Connection(use_greenlets=True)

def task():
    collection = connection.autoref.all_cars
    
    # Make cursor, and make sure it opens a socket
    cursor = collection.find()
    cursor.next()
    
    # Supposedly return this socket to the pool
    connection.end_request()
    
if __name__ == "__main__":
    jobs = [gevent.spawn(task) for i in xrange(500)]
    gevent.joinall(jobs)