[OpenIndiana-discuss] NTPD and PPM issues?

Dan Swartzendruber dswartz at druber.com
Fri May 27 19:10:37 UTC 2011


Andrew Gabriel wrote:
> Dan Swartzendruber wrote:
>>
>> I have an openindiana virtual machine running under ESXi. The vmware 
>> tools are installed and timesync is disabled. I have ntpd configured 
>> and working with several servers in the us.pool.ntp.org subdomain. It 
>> all seems to work - comparing the time with 2 other virtual machines 
>> on the same hypervisor indicates a match to the second. Yet, on OI, I 
>> see these messages every few minutes:
>>
>> May 27 14:17:25 nas ntpd[282]: [ID 702911 daemon.notice] frequency 
>> error -512 PPM exceeds tolerance 500 PPM
>>
>> Neither of the other VMs running ntpd complain this way. I'm not even 
>> sure this is VM related or maybe some Opensolaris-related thing, so 
>> forgive the possible waste of bandwidth (heck, I'm not even sure this 
>> is really an issue, but I tend to be concerned when I see a lot of 
>> messages like this...)
>>
>> Any thoughts on this? Thx!
>
> Don't expect realtime or low latency software to run correctly in a 
> hypervisor-virtualized OS.
>
Andrew, did you read where I mention that OI is the only VM that has 
this issue?



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