Check other people's stats pages, usually they mention how they're
graphing those or their sources.

Here's mine (fwiw I finally got a "hit" it seems, only a 12k clients
peak for a 10mbit netspeed, not bad):
http://rikku.vrillusions.com/ntp/

The ones that put the least stress on your server as far data collecting
is what your offset is with:

ntpq -c 'rv 0 offset'

This gets the offset value for associate id 0 (you) and that's how far
off your clock is from "true" time in msec

The other low stress one is:

ntpdc -c iostats

The received packets and sent packets are the number of udp packets
transmitted by ntpd.  The ones that get a client count can be very
processor intensive on slower machines.  Perhaps not as much so with the
new dns system and not getting 50k client spikes.

Jeffrey Goldberg wrote:
> On Sep 15, 2007, at 11:45 AM, Chuck wrote:
> 
>> what are most of you using to monitor local ntp servers? i am  
>> interested only
>> in traffic and number of connections, preferably reported by source  
>> ip.
> 
> For a while I used the scripts that someone already mentioned, but  
> I'd like to point out something that I haven't seen in other  
> messages.  Monitoring consumes far more resources than the NTP  
> service itself.  So monitor to satisfy curiosity and to get a feel  
> for what's going on.  But after a while, you may wish to discontinue  
> monitoring at all.
> 
> -j
> 

-- 
Todd
http://www.vrillusions.com/
My PGP Key ID: 0xBC90230C

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