[ntp:questions] ntp server specs

C BlacK rblak at non.net
Tue Jun 14 22:24:50 UTC 2011


For me track closely would be no more than 25us (micro seconds of a ntp server)

On 04/20/2011 05:49 PM, unruh wrote:
> On 2011-04-20, C BlacK <rblak at non.net> wrote:
>> If I am setting up an ntp server for a lot machines, I have some questions.
>>
>> 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.
> 
> ? Clearly the server should have as good a clock as possible. And it
> should not CPU speed type power management. And it should not be on a GB
> network. 
> Note that if you run the server with a GPS PPS you can get it down to
> 5usec accuracy, at which point the type of machine is largely
> irrelevant. 
> 
>>
>> I want the clients to track closely to server.
> 
> What does "track closely" mean? 1 hour? 1 sec? 1ms? 1us, 1ns?
> 
> The neteork will be more important than the server. 
> 
> 
>>
>>
>> Chip




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