title: Why Mongodb performance better on Linux than on Windows?
body: <p>I created a programme to test sharded MongoDB performance on Linux(Ubuntu) and Windows(Server2008).
  With inserting large quantity of records, Windows's disk's active time is very high(100%), then performance is very bad. But on Ubuntu, the disk's util% is 60%~70%, and the performance is better than Windows.
  Can I say MongoDB performance better on Linux?</p>