ntpd: program structure

[Sanjeev Gupta]

On Mon, Jan 7, 2019 at 2:23 AM Achim Gratz via devel <devel at ntpsec.org>
wrote:

> Sanjeev Gupta via devel writes:
> > root at ntpmon:~# ntpq -n -c direct -c mrulist | wc -l
> > 17306
> >
> > I am in the sg, in, and asia pools.  v4 and v6.  Server access is
> available
> > if you wish to poke around.
>
> What's the interface speed to the outside world, how much of it is used
> up by NTP and what's the CPU load that can be accounted towards that
> service?
>

Interface is 100Mbps
ntpsec is the only network service on the machine.  gpsd runs locally
CPU load is under 3%
Hardware is a dual-core Pentium 4, 2800MHz, from about 2006
Network traffic is under 100kbps
PPS is about 500/s, RX is 10% more than TX

Current client count is 18071

root at ntpmon:~# ntpq -n -c peers
     remote                                   refid      st t when poll
reach   delay   offset   jitter
=======================================================================================================
*SHM(1)                                  .PPS.            0 l   39   64
377   0.0000  -0.0006   0.0528
xSHM(0)                                  .GPS.            0 l   38   64
377   0.0000  48.8483  12.9107
 216.239.35.0                            .GOOG.           1 u   28   64
377 195.7880  -0.1648   0.0204
 216.239.35.12                           .GOOG.           1 u   20   64
377  50.3100  -0.8755   0.2823
 2.sg.pool.ntp.org                       .POOL.          16 p    -  256
0   0.0000   0.0000   0.0005
+2407:8000:8001:80::8                    .MRS.            1 u   23   64
377  37.6060  -0.8786   0.1608
 2404:e800:3:300:218:186:3:36            .INIT.          16 u    -   64
0   0.0000   0.0000   0.0005
+223.255.185.2                           .MRS.            1 u   21   64
377  37.8041  -1.0410   0.1814
-128.252.19.1                            .GPS.            1 u   23   64
377 233.0208   2.2710   0.0330
-128.2.1.22                              128.237.148.140  2 u   11   64
377 246.0131  11.5193   0.0405
-128.86.8.123                            .MSF.            1 u   17   64
377 255.4848 -36.0697   0.4654
 131.107.13.100                          .INIT.          16 u    -   64
0   0.0000   0.0000   0.0005
 2406:da18:abd:d701:3702:8488:136d:1a61  118.189.138.5    2 u  547   64
0  33.7980 -17.0944   0.0000
-2400:8901::f03c:91ff:fef8:76c           162.213.2.253    2 u    3   64
377   1.6902  -1.3324   0.0659
-2400:6180:0:d0::39:7001                 183.154.157.210  3 u    5   64
377   2.5517  -0.7524   0.0954
-2001:19f0:4400:436d:5400:ff:fe69:ac60   10.84.87.146     2 u   13   64
377   2.1817   1.1334   0.0515
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