title: fragmentation free data structure for accumulate several sensor floating data stream
body: <p>I'm consuming incoming data stream of 20-25 packets per second per sensor with floating values (e.g. temperature) and want to accumulate and produce a 1 per second outcoming data stream. I'm looking for a (ready to use) data-structure to avoid fragmentation. </p>
  
  <p>In other words, I guess hash tables and vectors are not suitable over here, while an allocator-aware should be used (along with a memory pool ??).</p>