I can confirm that this is a SMP related issue. I re-built my kernel with the only differences being that I changed my CPU to a Pentium-M, turned off SMP, and modified the ticks to 250/sec.
Performance is back to that of Breezy on my Celeron-M 1.4Ghz laptop, and I don't think its the different CPU settings, or the scheduler. Interactivity, especially while in a terminal is also much improved. -- cpu idle time in /proc/stat wrong https://launchpad.net/bugs/30557 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
