hmget memory issue

redis3.py

#!/usr/bin/env python
# ---------------------------------------------------------

import redis

POOL = redis.ConnectionPool(host='localhost',port=6379,db=0)
   
# ---------------------------------------------------------

def main():
   
   red = redis.Redis(connection_pool=POOL)
   print red.info()['redis_version']

   p = red.pipeline(transaction=False)
   for x in range(0,10000):
      red.hmset( "data", {x:x} )
   p.execute()

   print red.info()['used_memory']
   for x in range(0,100):
      red.hmget( "data", range(0,10000) )
      print red.info()['used_memory']
   

# ---------------------------------------------------------

main()