Comment 13 for bug 1205353

Looks like recent changes in the software stack have led to some improvements:

sudo health-check -p 1728 -d 30
CPU usage:
  PID Process USR% SYS% TOTAL%
  1728 qmlscene 0.07 0.00 0.07 (very light load)

Wakeups:
  PID Process Wake/Sec Kernel Functions
  1728 qmlscene 1.00 (hrtimer_start_range_ns, hrtimer_wakeup) (low)

Context Switches:
  PID Process Voluntary Involuntary Total
                             Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
  1728 qmlscene 13.00 0.00 13.00 (moderate)

File I/O operations:
 No file I/O operations detected.

System calls traced:
  PID Process Syscall Count Rate/Sec
  1728 qmlscene poll 31 1.0333

Top polling system calls:
  PID Process Syscall Rate/Sec Infinite Zero Minimum Maximum Average
                                                           Timeouts Timeouts Timeout Timeout Timeout
  1728 qmlscene poll 1.0333 0 0 788.0 msec 998.0 msec 990.5 msec

So we're now just seeing a 1 Hz poll in qmlscene now.