I have a 2013 rMBP 13" with Intel Iris and 8GB RAM. I usually run dual screen with the Apple thunderbolt display. Since I installed Yosemite (clean install), I have been experiencing significant graphics issues even when I'm just reading and annotating PDFs. The Yosemite mission control animation becomes very laggy. Anyone else having this issue?
MacBook Pro with Retina display
@saphirblanc I used the fix which stopped the kernel_task issue for good - no more spiking.
However there was still a little bit of a performance impact and switching between displays was really slow (500ms delay to focus a window on another display), so I ended up disabling `Settings > Mission Control > `Separate spaces for displays`, which gives me pre-Yosemite performance. However I liked the separate spaces for multiple displays so I hope they fix this in the future.
Dual screen graphics issue with Yosemite?
