[Git][NTPsec/ntpsec][master] 3 commits: Remove unused --peer-rtt-X description
Gary E. Miller
gitlab at mg.gitlab.com
Thu Sep 8 07:34:47 UTC 2016
Gary E. Miller pushed to branch master at NTPsec / ntpsec
Commits:
376cba89 by Gary E. Miller at 2016-09-07T23:54:19-07:00
Remove unused --peer-rtt-X description
- - - - -
0c2fbd24 by Gary E. Miller at 2016-09-08T00:23:51-07:00
Add ppm/ppb auto scale to Local Frequency Offset plot.
- - - - -
2f9fabab by Gary E. Miller at 2016-09-08T00:32:14-07:00
Add ppm/ppb autoscaling to Local Clock Time/Frequency Offsets
- - - - -
1 changed file:
- ntpstats/ntpviz
Changes:
=====================================
ntpstats/ntpviz
=====================================
--- a/ntpstats/ntpviz
+++ b/ntpstats/ntpviz
@@ -128,16 +128,29 @@ set rmargin 12
unit = "ns"
multiplier = 1e9
+ unit_f = "ppm"
+ multiplier_f = 1
+ values_f = [float(line.split()[2]) for line in self.loopstats]
+ values_f.sort()
+
+ ninetynine_f, one_f = \
+ self.percentiles( (99, 1), values_f)
+
+ if 1 > ninetynine_f and -1 < one_f:
+ # go to nanosec
+ unit_f = "ppb"
+ multiplier_f = 1e3
+
plot_template = NTPViz.Common + """\
set title "%(sitename)s: Local Clock Time/Frequency Offsets"
set ytics format "%%1.0f %(unit)s" nomirror textcolor rgb '#0060ad'
-set y2tics format "%%2.3f ppm" nomirror textcolor rgb '#dd181f'
+set y2tics format "%%2.0f %(unit_f)s" nomirror textcolor rgb '#dd181f'
set key bottom right box
set style line 1 lc rgb '#0060ad' lt 1 lw 1 pt 7 ps 0 # --- blue
set style line 2 lc rgb '#dd181f' lt 1 lw 1 pt 5 ps 0 # --- red
plot \
"-" using 1:($2*%(multiplier)s) title "clock offset %(unit)s" with linespoints ls 1, \
- "-" using 1:3 title "frequency offset ppm" with linespoints ls 2 axis x1y2
+ "-" using 1:($3*%(multiplier_f)s) title "frequency offset %(unit_f)s" with linespoints ls 2 axis x1y2
""" % locals()
return plot_template + self.dump("loopstats") + "e\n" \
+ self.dump("loopstats")
@@ -187,29 +200,40 @@ plot \\
values = [float(line.split()[2]) for line in self.loopstats]
values.sort()
+ multiplier = 1
+ unit = "ppm"
+ rnd = 3
+
ninetynine, ninetyfive, five, one = \
- self.percentiles( (99,95, 5, 1), values)
- ninetynine = round( ninetynine, 3)
- ninetyfive = round( ninetyfive, 3)
- five = round( five, 3)
- one = round( one, 3)
+ self.percentiles( (99, 95, 5, 1), values)
+
+ if 1 > ninetynine and -1 < one:
+ # go to ppb
+ multiplier = 1e3
+ unit = "ppb"
+ rnd = 0
+
+ ninetynine = round( ninetynine * multiplier, rnd)
+ ninetyfive = round( ninetyfive * multiplier, rnd)
+ five = round( five * multiplier, rnd)
+ one = round( one * multiplier, rnd)
nf_m_f = ninetyfive - five
nn_m_o = ninetynine - one
plot_template = NTPViz.Common + """\
set title "%(sitename)s: Local Clock Frequency Offset"
-set ytics format "%%1.3f ppm" nomirror
+set ytics format "%%1.0f %(unit)s" nomirror
set key bottom right box
set style line 1 lc rgb '#0060ad' lt 1 lw 1 pt 7 ps 0 # --- blue
set style line 2 lc rgb '#dd181f' lt 1 lw 1 pt 5 ps 0 # --- red
-set label 1 "99%% = %(ninetynine)s ppm" at graph 0.01,0.3 left front
-set label 2 "95%% = %(ninetyfive)s ppm" at graph 0.01,0.25 left front
-set label 3 " 5%% = %(five)s ppm" at graph 0.01,0.2 left front
-set label 4 " 1%% = %(one)s ppm" at graph 0.01,0.15 left front
-set label 5 "95%% - 5%% = %(nf_m_f)s ppm" at graph 0.01,0.1 left front
-set label 6 "99%% - 1%% = %(nn_m_o)s ppm" at graph 0.01,0.05 left front
+set label 1 "99%% = %(ninetynine)s %(unit)s" at graph 0.01,0.3 left front
+set label 2 "95%% = %(ninetyfive)s %(unit)s" at graph 0.01,0.25 left front
+set label 3 " 5%% = %(five)s %(unit)s" at graph 0.01,0.2 left front
+set label 4 " 1%% = %(one)s %(unit)s" at graph 0.01,0.15 left front
+set label 5 "95%% - 5%% = %(nf_m_f)s %(unit)s" at graph 0.01,0.1 left front
+set label 6 "99%% - 1%% = %(nn_m_o)s %(unit)s" at graph 0.01,0.05 left front
plot \
- "-" using 1:3 title "local clock error" with linespoints ls 2, \
+ "-" using 1:($3 * %(multiplier)s) title "local clock error" with linespoints ls 2, \
%(ninetynine)s title "99th percentile", \
%(ninetyfive)s title "95th percentile", \
%(five)s title "5th percentile", \
@@ -722,11 +746,12 @@ larger frequency offsets.</p>
""",
"local-error": """\
-<p>This shows the frequency offset of the local clock. It includes
-percentile data to show how much the frequency changes over a longer
-period of time. The majority of this change should come from
-temperature changes (ex: HVAC, the weather, CPU usage causing local
-heating).</p>
+<p>This shows the frequency offset of the local clock. It comes from
+field 3 of the loopstats log file. The graph includes percentile data to
+show how much the frequency changes over a longer period of time. The
+majority of this change should come from temperature changes (ex: HVAC,
+the weather, CPU usage causing local heating).</p>
+
<p>Smaller changes are better. An ideal result would be a flat line at 0ppm.</p>
<p>Expected values of 99%-1% percentiles: 0.4ppm</p>
""",
@@ -767,19 +792,6 @@ how quickly the remote clock offset is changing.</p>
<p>Closer to 0μs/s is better. An ideal system would be a straight
line at 0μs/s.</p>
""",
- # FIXME: Not used yet
- "peer-offset-X": """\
-<p>This shows the clock offset between the local clock and a remote
-clock or refclock.</p>
-<p>For remote clocks, the purple line is the offset while the green
-and blue lines are the request and response. The request and response
-lines can show if the change in offset was due to an asymmetric
-network effect (either request or response latency went up/down, but
-not both), a symmetric network effect (request and response latency
-went in opposite directions), or the clocks changed in offset (request
-and response and offset all went in the same direction).<p>
-<p>The orange 50th percentile line shows the median offset value. You can use this to align offsets between LAN stratum 1 servers.</p>
-"""
}
index_header = '''\
@@ -833,6 +845,10 @@ system clock frequency (usually in parts per million, ppm)</dd>
<dt>ms, millisecond:</dt>
<dd>One thousandth of a second = 0.001s</dd>
+<dt>ppb, parts per billion:</dt>
+<dd>Ratio between two values. These following are all the same:
+ 1 ppb, one in one billion, 1/1000000000, 0.000000001, and 0.0000001%</dd>
+
<dt>ppm, parts per million:</dt>
<dd>Ratio between two values. These following are all the same:
1 ppm, one in one million, 1/1000000, 0.000001, and 0.0001%</dd>
View it on GitLab: https://gitlab.com/NTPsec/ntpsec/compare/c297c8006e2c0fee20127c43e1a01e6c78e7597a...2f9fabab08f4fc52b051911a7b813160a0155b35
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