Good to see that 83% are Linux or BSD based boxes. :)
On Thu, Aug 2, 2012 at 11:19 AM, Matej Snoha <[email protected]> wrote: > Hi. > > Yesterday I gathered some statistics about (IPv4) servers in the pool. > I'm posting them here, since at least the offset part seems on topic. > Offset (absolute value) measured against my stratum 2 in Prague. I used > ntpdate, so it might not be that accurate. > > Out of 2348 servers: > > +-----------+--------------+-----+ > | offset | # of servers | % | > +-----------+--------------+-----+ > | <= 1 ms | 1105 | 47% | > | <= 2 ms | 1441 | 61% | > | <= 5 ms | 1925 | 82% | > | <= 10 ms | 2148 | 91% | > | <= 25 ms | 2269 | 97% | > | <= 50 ms | 2311 | 98% | > | <= 100 ms | 2330 | 99% | > +-----------+--------------+-----+ > > Out of 2348 servers: > > +-----------+--------------+-----+ > | stratum | # of servers | % | > +-----------+--------------+-----+ > | 1 | 142 | 6% | > | 2 | 1592 | 68% | > | 3 | 578 | 25% | > | 4 | 26 | 1% | > +-----------+--------------+-----+ > > Out of 1044 servers: > > +-----------+--------------+-----+ > | OS | # of servers | % | > +-----------+--------------+-----+ > | Linux | 658 | 63% | > | BSD | 213 | 20% | > | Windows | 30 | 3% | > | SunOS | 25 | 2% | > +-----------+--------------+-----+ > > More then half of the servers didn't return info about their OS, so the > last table might be off quite a bit. > > Matej Snoha > > On Thu, Aug 2, 2012 at 9:07 AM, [email protected] <[email protected]> wrote: > >> On Wednesday, August 1. 2012, 16:43:16 Matej Snoha wrote: >> > Hi. >> > >> > A few months ago I did a sweep over servers listed at >> > http://support.ntp.org/bin/view/Servers/StratumOneTimeServers . >> > >> > Out of the 183 reachable servers, >> > 122 (67%) had offset <= 5 ms >> > 156 (85%) had offset <= 10 ms >> > 174 (95%) had offset <= 20 ms >> > 9 had offset > 20 ms >> > 1 had offset 10 s >> > (measured against my stratum 2 in Prague). >> > >> > Your server currently shows as -24.8 ms. >> > >> > Also, the drop in your graph could just be a result of a network >> topology >> > change. >> > The offset could be a result of asymetric internet connection. >> > >> > Hope this helps, >> > Matej Snoha >> Thanks that's really interesting and helps to manage my expectations. I >> hope the calibration other mentioned will resolve the offset. >> >> Best regards, >> >> Klaus >> _______________________________________________ >> pool mailing list >> [email protected] >> http://lists.ntp.org/listinfo/pool >> > > > _______________________________________________ > pool mailing list > [email protected] > http://lists.ntp.org/listinfo/pool >
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