gistfile1.pyw

import time
import pymongo

conn = pymongo.Connection('localhost', 27017)

system = conn.dkp.systems.find_one()
raids = list(conn.dkp.raids.find({'system_id': system['_id']}))
del raids

# no matter how much time passes, the RAM is not being reclaimed
# raids is about 3000 documents and is consuming 120mb of RAM
# as soon as I shut off the program, then all ram is instantly back