title: iOS / Too frequent rssi event from driver..?
body: <p>So my question came up looking an the console output of some iOS 7.0.x devices via iPhone Configuration Utility the other day. I was puzzled to see several indications that the WiFi daemon registers <strong>WiFi rssi activity</strong> out of the blue for no apparent reason (no background apps active / push messages pending and so on). These all appear as coupled records in the console in the form of:</p>
  
  <pre><code>Mar xx xx:xx:xx iDevice wifid[xx] &lt;Notice&gt;: WiFi:[406330748.823677]: 
  Mar xx xx:xx:xx iDevice wifid[xx] &lt;Notice&gt;: Too frequent(1.822344 secs) rssi event from driver
  Mar xx xx:xx:xx iDevice wifid[xx] &lt;Notice&gt;: WiFi:[406330748.895756]: 
  Mar xx xx:xx:xx iDevice wifid[xx] &lt;Notice&gt;: Too frequent(0.835468 secs) rssi event from driver, ignoring
  </code></pre>
  
  <p>...and so on. What got me worried is that the lines above are duplicated every second or so and appear to never end.</p>
  
  <p>Now I'm no programmer in any kind of form, but knowing some of the basics of UNIX and all I've managed to conclude that the WiFi daemon takes up substantial CPU time as shown in an top breakdown using the terminal, which in turn would suggest that this may (or not) be a reason I've also been experiencing <em>poor battery life</em> on some of these devices as of late.</p>
  
  <p>Next up I would obviously ask you all if anyone's familiar with the behavior noted above and if so what would be the source of this "noise"..</p>