title: Can the performance timer "% Time in GC" be wrong?
body: <p>We found that, since today, the <em>"% Time in GC"</em> (percent time in Garbage Collector) performance timer, steadily stood on 100% with only occasionally a bit lower. Even when at night no visitors were online.</p>
  
  <p>Then I placed <code>App_Offline.htm</code> in the root. Usually this brings down all ASP.NET activity. But for some odd reason, the <em>"% Time in GC"</em>, while lowered to 34%, remained steady.</p>
  
  <p>Am I looking over something obvious here? Some other GC related performance counters also seem to still act, but marginally.</p>
  
  <p><em>EDIT: I had written "only today", but it's really "since today". It hasn't gone away since.</em></p>