title: ASP.NET image processing performance bottleneck
body: <p>I am developing web service on ASP.NET. One of key features is uploading some photos (max - 18) to server and after that this photos are being processed. I have performance bottleneck with image resizing. When i am uploading maximum count of photos to server then CPU usage approaches 100%, therefore all pages on server not responding until image processing not finished. I am use MS Azure (App plan - S2) to host my service.</p>
  
  <p>So, how to organize image resizing to prevent full CPU load?</p>