Lots of calcru: runtime went backwards, never saw it before

[Giorgos Keramidas]

On 2006-02-21 02:15, Andrey Chernov <ache at freebsd.org> wrote:
> What I got with recent -current (below). What does it mean, what I
> supposed to do and why I never saw it before?
>
> Feb 21 01:14:19 pobrecita kernel: calcru: runtime went backwards from
> 42153 usec to 42152 usec for pid 613 (sshd)
> Feb 21 01:14:19 pobrecita kernel: u 2:28102/28101 s 1:14051/14050 i 0:0/1
> Feb 21 01:14:19 pobrecita kernel: calcru: runtime went backwards from 2979
> usec to 2978 usec for pid 606 (getty)
> Feb 21 01:14:19 pobrecita kernel: u 0:0/0 s 1:2979/2978 i 0:0/0
> Feb 21 01:14:19 pobrecita kernel: calcru: runtime went backwards from 3148
> usec to 3147 usec for pid 605 (getty)
> Feb 21 01:14:19 pobrecita kernel: u 0:0/0 s 1:3148/3147 i 0:0/0
> Feb 21 01:14:19 pobrecita kernel: calcru: runtime went backwards from 5011
> usec to 5010 usec for pid 585 (inetd)
> Feb 21 01:14:19 pobrecita kernel: u 1:5011/5010 s 0:0/0 i 0:0/0
> Feb 21 01:14:19 pobrecita kernel: calcru: runtime went backwards from
> 292891 usec to 292883 usec for pid 29 (pagezero)
> Feb 21 01:14:19 pobrecita kernel: u 0:0/0 s 37:292891/292883 i 0:0/0

Hi Andrey,

Can you test with the following /etc/defaults/rc.conf vars set to "HIGH"?

keramida at flame:/home/keramida$ grep _cx /etc/defaults/rc.conf /etc/rc.conf
/etc/defaults/rc.conf:performance_cx_lowest="LOW"      # Online CPU idle state
/etc/defaults/rc.conf:economy_cx_lowest="LOW"          # Offline CPU idle state
keramida at flame:/home/keramida$

Without these set to "HIGH" in rc.conf, my laptop crawls to a halt very
fast after it enters multiuser mode.