Experiences with 7.0-CURRENT and vmware.

[Garrett Cooper]

Kris Kennaway wrote:
> On Thu, May 10, 2007 at 08:14:28PM -0700, Garrett Cooper wrote:
>> Kris Kennaway wrote:
>>> On Thu, May 10, 2007 at 08:44:48PM +0000, Darren Reed wrote:
>>>> On Thu, May 10, 2007 at 03:41:44PM -0400, Kris Kennaway wrote:
>>>>> On Thu, May 10, 2007 at 12:54:45PM +0000, Darren Reed wrote:
>>>> ...
>>>>>> In another reply it was "hint.apic.0.disabled=1".
>>>>>> My current loader.conf:
>>>>>>
>>>>>> vm.kmem_size=536870912
>>>>>> vm.kmem_size_max=536870912
>>>>>> unset acpi_load
>>>>> acpi_load="NO" to disable the module
>>>>>
>>>>>> hint.acpi.0.disabled=1
>>>>>> hint.apci.0.disabled=1
>>>>> dunno what apci does :)
>>>>>
>>>>>> hint.acpi.0.disabled="1"
>>>>> This is the one that should work.  Can you confirm that you see it in
>>>>> the loader environment by doing 'show'?
>>>> ok.  I modified my loader.conf to be:
>>>>
>>>> hint.acpi.0.disabled="1"
>>>> vm.kmem_size=536870912
>>>> vm.kmem_size_max=536870912
>>>> vfs.zfs.arc_max=402653184
>>>>
>>>> and now ACPI is didsabled when the kernel boots :-)
>>>>
>>>> Is it possible for parsing errors of this file to generate errors?
>>>> And maybe pause for a few seconds so they can be read?
>>> I guess all things are possible with forth.
>>>
>>>> When I was modifying the loader.conf, I was looking for errors on
>>>> bootup but regarding getting acpi vs apci vs apic right, I never
>>>> saw any.  My experience also tells me that errors seem to quietly
>>>> stop the rest of the file being parsed or...?
>>>>
>>>>>> # sysctl kern.timecounter.hardware="ACPI-fast"
>>>>>> kern.timecounter.hardware: ACPI-safe
>>>>>> sysctl: kern.timecounter.hardware: Invalid argument
>>>>> kern.timecounter.choice
>>>> When I tried to set this with sysctl, I got told it was read-only.
>>>> The next step was to put it in loader.conf but now ACPI *is* disabled :)
>>> Sorry, .hardware was the correct one.  I don't know why you are unable
>>> to set it at runtime:
>>>
>>> xor# sysctl kern.timecounter.hardware=TSC
>>> kern.timecounter.hardware: ACPI-fast -> TSC
>>> xor# sysctl kern.timecounter.hardware=ACPI-fast
>>> kern.timecounter.hardware: TSC -> ACPI-fast
>>>
>>> Kris
>> I'm not sure why but it isn't settable with VMWare 1.03 server either.
> 
> Maybe there are no other valid choices provided by vmware.
> 
>> I gave the Intel ACPI one a shot though and I haven't seen any adverse 
>> effects.. yet. It is true that the higher the number, the faster the 
>> synchronization or the inverse?
> 
> It's a "quality factor" that tries to estimate and rank the various
> properties of time counters (higher = better).

Basically sample rate?

> Kris