title: IO Other Operations Performance Counter Explanation
body: <p>I have received perfmon counters from customer site. We noticed unusual values in <code>\\COMPUTERNAME\Process(PROCESS_NAME)\**IO Other Operations/sec**</code>.</p>
  
  <p>The best explanation for the counter I came up with is:-</p>
  
  <blockquote>
    <p>The average rate at which the process
    is issuing I/O operations that are
    neither read nor write operations (for
    example, a control function). This
    counter counts all I/O activity
    generated by the process to include
    file, network and device I/Os. This
    counter is equivalent to the perfmon
    counter Process\IO Other
    Operations/sec.</p>
  </blockquote>
  
  <p>On <a href="http://technet.microsoft.com/en-us/library/bb490957.aspx" rel="noreferrer">Technet</a>, its description does not appear.</p>
  
  <p>Who knows what this counter <code>(**IO Other Operations/sec**)</code> actually counts? Which system call may cause this counter to be increased and how it can be monitored.</p>
  
  <p>We are working with C++.</p>