id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,field_blocks,field_dependson,field_seealso 485,Desktop is slow,Jiri Svoboda,,"The composited desktop is way too slow to be usable with Qemu/non-KVM even on decent hardware (2.5-3.0 GHz). Need to speed it up so that Qemu is usable again. Workaround: Disable kernel framebuffer support to get a text-only console or use KVM or VirtualBox. Some areas of improvement: * It seems nearly all operations are done on a per-pixel basis without taking advantage of operating on many pixels * All pixel transfers always go through full alpha-blending even when the window is completely opaque * All pixel transfers go through full filtering even when the transformation is identity or mere translation * Alpha blending is computed in double floating point although the pixel buffers themselves are integer ",defect,closed,major,0.6.0,helenos/unspecified,mainline,fixed,,,,,