https://bugs.freedesktop.org/show_bug.cgi?id=103917
Bug ID: 103917 Summary: [gfx9/Vega] Performance regression in master, 17.3 works fine Product: Mesa Version: git Hardware: All OS: All Status: NEW Severity: critical Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: vedran@miletic.net QA Contact: dri-devel@lists.freedesktop.org
I'm using Fedora rawhide (to become 28) along with Mesa 17.3.0-rc3, LLVM 5.0.0 and Kernel 4.15-git. If I install Mesa 17.3.0-rc5, everything still works fine. If I install Mesa git, everything works fine with 17.3-rc3 running desktop and 17.4 running games.
After rebo a reboot, however, with Mesa git running both the desktop and games, performance in games is very bad, rougly 1 fps.
I tried to bisect, but wasn't able to figure out what commit exactly is causing the problem. I compile Mesa with
./autogen.sh --enable-egl --enable-driglx-direct --disable-gles1 --enable-gles2 --enable-shared-glapi --enable-glx-tls --enable-dri --enable-texture-float --with-dri-drivers="" --with-egl-platforms=drm,wayland,surfaceless,x11 --with-gallium-drivers=r600,radeonsi,swrast --with-vulkan-drivers=radeon --enable-opencl --enable-opencl-icd PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig --enable-nine --enable-gbm --enable-va --enable-vdpau --libdir=/usr/local/lib64; make clean; make -j4; make -j4 check