title: Memory spike in redis on connecting clients
body: <p>So I tried simple opening a 5k connections to redis and I am not performing any operation.</p>
  
  <p>I still see around used_memory around 100mb  being used and used_memory_peak is around 180 mb. What is consuming this memory?</p>
  
  <p>Here how my "CLIENT LIST" looks for all the connections</p>
  
  <p>id=11639 addr=10.55.198.141:57044 fd=1622 name= age=16 idle=16 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 obl=0 oll=0 omem=0 events=r cmd=auth</p>