title: Is increase in memory usage of my code possible without any memory leak?
body: <p>There is a C++ code which does some calculations in iterations of a loop. When I run my code for a couple of hours, no increase in memory usage is observable. But when I let it run over night, 50 MB increase in memory usage is observed by MS Performance Monitor tool (perfmon.exe) as shown below. Plots are only for my process not the entire system.</p>
  
  <p><img src="https://i.stack.imgur.com/Y0KaH.png" alt="enter image description here"></p>
  
  <p><a href="http://vld.codeplex.com/releases" rel="nofollow noreferrer">Visual Leak Detector</a> cannot detect any memory leak inside the implemented loop. Is it possible that cause of increase in memory usage is something other than memory leak?</p>