My original system was a 32-bit Hardy running on 64-bit capable hardware, upgraded from Gutsy.
I did a fresh 32-bit install of Hardy, fully updated -- no change. I did a fresh 64-bit install of Hardy, fully updated -- no change. I read something somewhere recently about people running 32 bit OS on 64-bit hardware and running into some issues which is why I decided to do the fresh install. The problem still remains without any notable change -- something is still generating about 150K interrupts per sec (based on output from 'vmstat 1'), normal system performance, 2D performance is excruciatingly slow, and 3D performance is fair but slower than expected. If I disable the FGLRX driver, interrupts, 2D performance and system performance go back to their expected levels, but obviously I lose any benefits of the direct rendering. All this confirms is that I can replicate the results with both 32-bit and 64-bit Hardy and that there's no legacy issues from my Gutsy->Hardy upgrade that are triggering it. -- [fglrx] Using fglrx causes excessive hardware interrupts and an extremely slow system https://bugs.launchpad.net/bugs/206337 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs