title: How many per second request can my provisioned Dynamodb throughput support
body: <p>After reading several documentations and blogs about Dynamodb, I'm still struggling to understand how does RCU and WCU works.</p>
  
  <p>I deployed a table with 5 RCU. The request on this table is mostly a <code>GetItem</code> request with an average response payload of 7KB. I know it's not the size of the payload that will be measured but the consumed data size during a read operation. But let's just hypothetically say it consumed similar data size.</p>
  
  <p>From Dynamodb docs, each provisioned RCU can support up to 4KB of consistent read
  so if I understand it, my provisioned throughput can support up to 20KB per second without throttling. </p>
  
  <p>Based on this, if my average payload is 7KB, 
  am I correct in saying that, my table can support like ~ 2 request/sec?</p>
  
  <p>Would appreciate if anyone can shed some lights on this.</p>