Port-sparc archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: [ntp:questions] Ntpd in uninterruptible sleep?



On 11/17/2011 10:10, Dave Hart wrote:
On Thu, Nov 17, 2011 at 18:04, Alexander Carver<agcarver%acarver.net@localhost> 
 wrote:
On 11/17/2011 09:14, Dave Hart wrote:
filtdelay= 0.23 0.23 0.23 0.23 0.23 0.37 0.23 0.26,
filtoffset= -0.06 -0.06 -0.07 -0.08 -0.08 -0.01 -0.01 -0.01,
filtdisp= 0.00 0.96 1.95 2.94 3.95 4.91 5.81 5.84

The last three lines are the ones from ctl_putarray().

Thanks for digging into this.  Your test program is close what I had
it mind.  I was thinking output only the hex values followed by \r to
avoid scrolling the terminal for speed, expecting when it went into an
infinite loop, the interesting hex value would be visible.  AGC, what
does your ntpq show if you try similar commands, varying from&1 to
the number of associations?  'rv&X' happens under the hood for each
line of ntpq -p, and -c raw shows the text as it is on the wire (at
least for these filt*=).

Do you want this data from the older version or the newer development
version?  I'm assuming the older version which means I need to restart ntpd
and let it accumulate some data before I can try it but I'd only have a
limited window of time before it completely locks up.

No, 4.2.7 is fine.  The point is the numbers are small and from
measurements, none typically exceed about 16000.0 I believe.

Cut for brevity here are the three filter lines from the raw output of ntpq for RVs 1 through 7:

filtdelay= 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00,
filtoffset= 2.01 2.01 2.02 2.01 2.01 2.01 2.01 2.01,
filtdisp= 0.06 0.30 0.54 0.78 1.02 1.26 1.50 1.74

filtdelay= 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00,
filtoffset= 25.14 19.01 22.03 26.24 29.08 23.11 22.17 14.33,
filtdisp= 0.21 2.43 3.93 5.94 7.83 9.75 12.01 13.61

filtdelay= 36.97 37.11 37.20 36.50 37.00 36.71 36.44 38.72,
filtoffset= -0.55 0.31 -0.42 0.08 0.55 0.64 0.38 0.95,
filtdisp= 0.06 7.77 15.47 23.18 31.13 39.05 47.19 55.34

filtdelay= 56.59 56.40 57.02 66.98 66.88 66.79 67.82 67.87,
filtoffset= -0.94 -1.18 -0.83 4.33 4.44 4.38 4.00 4.43,
filtdisp= 0.06 8.01 16.08 23.76 31.70 39.74 47.69 55.70

filtdelay= 79.52 100.01 78.40 79.59 81.17 79.88 81.61 81.65,
filtoffset= -10.27 0.47 -9.91 -10.94 -10.34 -9.46 -10.37 -9.66,
filtdisp= 0.06 7.79 15.51 23.21 31.32 39.30 47.33 55.17

filtdelay= 82.57 81.57 82.56 81.80 82.20 81.93 82.33 82.18,
filtoffset= 6.55 6.24 6.80 6.15 5.52 5.09 4.85 4.50,
filtdisp= 0.06 7.76 15.48 23.57 31.35 39.26 63.14 70.95

filtdelay= 91.33 111.83 84.39 85.28 99.98 86.57 87.71 87.53,
filtoffset= 3.84 14.36 1.46 1.88 9.16 2.52 1.37 1.76,
filtdisp= 0.06 8.16 16.16 23.87 31.86 39.66 63.53 71.57



Home | Main Index | Thread Index | Old Index