Comment # 67 on bug 82050 from Andy Furniss

(In reply to comment #64)

> It's pretty clear that the stutters correlate with activity in "num bytes
> moved"...

I brought this up earlier and as was explained way the graphing/counting works
may mean this is not related.

In summary AIUI the fact there is a pause causes a spike because the count is
from the last frame rendered - which is way longer than normal due to the
pause.