The reason why llvmpipe is slow is because it is a completely software- based rendering solution, the whole desktop is rendered in software and then pushed at once. A change of a single pixel is causing full desktop redraw on every frame. I have filed LP:1098744 to track disabling the animations in case low graphics mode is enabled which will make it a bit faster but not fast enough to be considered useful in these environments.
I have also tested Intel HD 3000 running under plain VESA driver on Core i5 @ 2.5GHz and surprisingly found the performance of llvmpipe-based Unity to be quite on par with the accelerated version so it appears that some systems are indeed OK with such kind of full screen redraw mode. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1055936 Title: Unity is unusuably slow with fallback software rendering (LLVMpipe) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1055936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
