Comment 71 for bug 270798

I'm suffering badly from these hpet messages in Ubuntu Lucid 10.04 x86 it seems. Don't know how critical they really are.
Today's session so far:
$ dmesg|grep hpet
[ 0.000000] hpet clockevent registered
[ 0.224755] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 0.224760] hpet0: 3 comparators, 64-bit 14.318180 MHz counter
[ 0.228208] Switching to clocksource hpet
[ 0.554687] rtc0: alarms up to one month, y3k, 114 bytes nvram, hpet irqs
[ 28.961077] CE: hpet increasing min_delta_ns to 15000 nsec
[ 791.225076] CE: hpet increasing min_delta_ns to 22500 nsec
[ 1238.509081] CE: hpet increasing min_delta_ns to 33750 nsec
[16869.453011] CE: hpet increasing min_delta_ns to 50624 nsec
[18029.867095] CE: hpet increasing min_delta_ns to 75936 nsec
[19313.601918] CE: hpet increasing min_delta_ns to 113904 nsec
[19362.762508] CE: hpet increasing min_delta_ns to 170856 nsec
$ uname -a
Linux blackelf 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux

I've seen it go as high is ~800000 nsecs. Right now things are slow, graphics seem to be suffering the most. However, there are no lockups and apps don't crash randonmly. Note that I cannot say for sure if the slowdown is caused by those hpet-messages or not. But every time I notice slowdown, I usually see some hpet messages in the kernel log as well. Lenovo Thinkpad Z61m, Intel Core Duo, 3GB RAM, ATI X1400 graphics, radeon KMS+Compiz.