Pending issues

Eric Anderson anderson at
Fri Aug 5 14:01:47 GMT 2005

John Baldwin wrote:
> On Tuesday 02 August 2005 04:57 pm, Eric Anderson wrote:
>>John Baldwin wrote:
>>>On Tuesday 02 August 2005 04:28 pm, Eric Anderson wrote:
>>>>Ok, here's a small list of issues pending that I can see on -current
>>>>(and I saw these on 6- branch too before 7.0).
>>>>- Time ticks along correctly, but anything using an interval will be 2x
>>>>off.  For instance - ping will only send a ping every 2 seconds instead
>>>>of every second.  systat -vmstat 1 refreshes every 2 seconds, etc.
>>>>Disabling APIC 'fixes' it.
>>>Are you using the i8254 timecounter or some other timecounter?
>>kern.timecounter.choice: TSC(800) ACPI-fast(1000) i8254(0) dummy(-1000000)
>>kern.timecounter.hardware: ACPI-fast
>>Which is the default (I'm not forcing anything anywhere).  I believe at
>>one time I tried i8254, but it made no difference.  I can try it again
>>if you think it's a worthy experiment.
> I would try both i8254 and TSC and see if it makes a difference.

Can I do this via sysctl, or do I need to rebuild my kernel?


Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.

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