I can confirm this bug on my Toshiba Satellite M60 132. With kernel 2.6.15-25, load average is very high, just over 1.5, sometimes 2.5, and the CPU goes from 5 - 40%. Then, when Mmike told me to try new kernel, with CONFIG_HZ=1000 in kernel 2.6.17.3 now everything runs smoothly, CPU is at 0 - 1.5% and load average is about 0.15.
-- Load average never below 1.5 on dapper https://launchpad.net/bugs/50335 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs