title: Android in ART garbage collection pause time indicates main thread or worker thread?
body: <p>Does anybody know whether GC log below, "paused 1.439ms", means pause time on background thread that CMS is working on, or pause time on main thread?</p>
  
  <p>I/art: Background sticky concurrent mark sweep GC freed 266189(12MB) AllocSpace objects, 0(0B) LOS objects, 14% free, 46MB/54MB, paused 1.439ms total 179.694m</p>
  
  <p>Thanks a lot in advance!!</p>