title: Nodejs High CPU usage
body: <p>I am trying to determine why my nodejs server has extremely high CPU usage. When running top, I can see that the CPU usage for node can hit up to 60% with a single user. I used node-tick to profile my application, but I cannot seem to understand the results well enough to find the source of the problem. </p>
  
  <p>I am using:</p>
  
  <pre><code>socket.io
  mongodb
  jade-templating
  express
  </code></pre>
  
  <p>Here are the results:</p>
  
  <pre><code> [Shared libraries]:
     ticks  total  nonlib   name 
    31273   88.5%    0.0%  b77b7000-b77b8000
     2144    6.1%    0.0%  /usr/local/bin/node
      269    0.8%    0.0%  /lib/i386-linux-gnu/libc-2.15.so
       45    0.1%    0.0%  /lib/i386-linux-gnu/libpthread-2.15.so
       13    0.0%    0.0%  2cd46000-2cd47000
       11    0.0%    0.0%  /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16
        2    0.0%    0.0%  /lib/i386-linux-gnu/librt-2.15.so
  </code></pre>
  
  <p>I cannot seem to find this "b77b7000-b77b8000" and google is not yielding many results. </p>
  
  <p>Can anyone determine what is causing my node.js to use so much CPU time?</p>