On 01/13/2017 10:51 AM, Michael Cronenworth wrote:
On 01/11/2017 10:52 AM, Adam Jackson wrote:
On a benchmark that doesn't reflect real usage very well, but sure.
Can you drill down on this a bit? Which subtests get most worse?
I have compiled the results into a spreadsheet. There is not one sub-test that performs worse than another. The overall times are slower with modesetting.

DrawingArea Circles seems to be the worst offender: it runs at 40% of Intel speed and is used relatively often in this test; other significant slowdowns are around 83% in ComboBox*
The worst offender is DrawingArea Pixbuf running at 25% of Intel, but not very significant in this test because it runs for very short time.