Re: Performance drop on XDrawRectangles()

Chris Wilson
2014-01-08T22:08:10Z

On Wed, Jan 08, 2014 at 06:09:54PM +0000, Chris Wilson wrote:
> Same. But there are a lot of factors that changed for my two kernels
> (FBC, ppgtt) to name but two which should not apply to your machine.
> Anyway it looks like the bisect progressing smoothly here, so I'll find
> out if there is something outside of i915.ko that changed. Later, I'll
> poke around on i845g as well.

Well, I managed to bark up the wrong tree on ivb. Turns out I was just
seeing RENDER vs BLT perf differences due to CONFIG_I915_FBDEV, so
irrelevant for your issue.

Will try again on i845. Albeit slowly.