https://bugs.freedesktop.org/show_bug.cgi?id=97260
--- Comment #22 from Kai kai@dev.carbon-project.org --- (In reply to Michel Dänzer from comment #21)
Created attachment 125838 loader/dri3: Always use 3 back buffers when flipping
Does this Mesa patch help?
Yes! With attachment 125838 applied on top of Mesa master 607ab6d3bf I'm seeing the same performance on 4.7.1 as on 4.6.4. You can have my Tested-by: Kai Wasserbäch kai@dev.carbon-project.org
The full stack used (Debian testing as a base) was: GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1) Mesa: Git:master/3fb4a9b3b3 / Git:master/607ab6d3bf + attachment 125838 libdrm: 2.4.70-1 LLVM: SVN:trunk/r278555 (4.0 devel) X.Org: 2:1.18.4-1 Linux: 4.7.1 Firmware: Git:master/c170c8d957 (placed in /lib/firmware/updates; fallback would be firmware-amd-graphics/20160110-1) libclc: Git:master/785bfd3719 DDX: 1:7.7.0-1