[ntp:questions] ntp server specs

chipper black at intre.nt
Sun Jun 12 22:55:05 UTC 2011


If I wanted to feed a group of linux machine from a common PPS source, what hardware and which Linux would I need?

David Woolley wrote:
> C BlacK wrote:
>>
>> If the timing on client machines needs to be tight, should the ntp
>> server be an x86 machine with a less than accurate clock
>> or a ntp server with a very accurate clock.
>>
>> I want the clients to track closely to server.
>
> The clients will almost certainly be the weak link.
>
> Also, if you are going sub-millisecond, you need to analyze the client
> OS, hardware and scheduing in extreme detail.
>
> If you want very tight lock of the software clock (still may have large
> jitters in terms of real world events), you should feed them from a
> common PPS source, rather than using ethernet for the fine synchronisation.




More information about the questions mailing list