Re: acpi timer trouble

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Tue, Nov 26, 2013 at 05:58:55PM +0100, Joerg Sonnenberger wrote:
> On Tue, Nov 26, 2013 at 04:55:36PM +0000, Patrick Welche wrote:
> > interrupt                                     total     rate
> > cpu0 timer                                  1007499    23430
> 
> This is completely off and explains your problem. Can you post the first
> part of the dmesg with the measured LAPIC and TSC frequency?

timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
timecounter: Timecounter "ichlpcib0" frequency 3579545 Hz quality 1000
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0

do you mean this? (essentially the

kern.timecounter.choice = TSC(q=-100, f=21712370 Hz) clockinterrupt(q=0, f=100 
Hz) ichlpcib0(q=1000, f=3579545 Hz) ACPI-Fast(q=1000, f=3579545 Hz) 
lapic(q=-100, f=440146 Hz) i8254(q=100, f=1193182 Hz) dummy(q=-1000000, 
f=1000000 Hz)
kern.timecounter.hardware = ACPI-Fast

I already posted? or something else?)

(Just in case:

# sysctl -w kern.timecounter.hardware=i8254
kern.timecounter.hardware: ACPI-Fast -> i8254
# vmstat -i
interrupt                                     total     rate
cpu0 timer                                 10098293    22743
ioapic0 pin 9                                  3657        8
ioapic0 pin 20                                    8        0
ioapic0 pin 21                                 2817        6
ioapic0 pin 22                                    2        0
ioapic0 pin 14                                 7346       16
Total                                      10112123    22775

)

Cheers,

Patrick