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2026-01-11 - 04:43
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sun Jan 11, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19037382400,1sleep30-21swapper/300:15:013
1507338992926,1cyclictest0-21swapper/321:35:003
150733899281,22cyclictest1664559-21turbostat21:10:003
1507338992118,1cyclictest0-21swapper/323:50:003
1507338992118,1cyclictest0-21swapper/322:05:123
1507338992017,1cyclictest0-21swapper/323:00:113
1507338992016,1cyclictest0-21swapper/322:55:003
1507338991916,1cyclictest0-21swapper/319:30:173
150733899191,15cyclictest1683806-21sleep21:25:003
150733899191,13cyclictest1709926-21taskset21:45:023
150733899188,7cyclictest15478242sleep319:35:223
1507338991815,1cyclictest0-21swapper/323:45:003
1507338991814,1cyclictest0-21swapper/320:55:003
1507338991812,4cyclictest1916463-21sleep00:24:593
150733899181,13cyclictest1606679-21turbostat20:25:003
150733899181,13cyclictest1522551-21turbostat19:20:003
150733899181,12cyclictest1819704-21taskset23:10:023
150733899181,12cyclictest1819704-21taskset23:10:013
150733899181,12cyclictest1626204-21taskset20:40:013
150733899177,6cyclictest15678362sleep319:51:213
1507338991714,1cyclictest0-21swapper/323:55:233
1507338991714,1cyclictest0-21swapper/323:25:173
1507338991714,1cyclictest0-21swapper/322:35:203
1507338991714,1cyclictest0-21swapper/321:00:183
1507338991714,1cyclictest0-21swapper/320:36:203
1507338991714,1cyclictest0-21swapper/319:30:003
150733899171,13cyclictest1593441-21taskset20:10:273
150733899171,13cyclictest1507839-21chrt19:10:123
150733899171,12cyclictest1858303-21turbostat23:40:003
150733899171,12cyclictest1686091-21taskset21:25:173
1507338991613,1cyclictest0-21swapper/322:10:183
1507338991613,1cyclictest0-21swapper/320:30:163
1507338991613,1cyclictest0-21swapper/319:42:333
1507338991613,1cyclictest0-21swapper/300:00:333
150733899161,12cyclictest1929209-21chrt00:34:163
150733899161,12cyclictest1818812-21taskset23:05:243
150733899161,12cyclictest1806531-21taskset22:59:553
150733899161,12cyclictest1793584-21chrt22:48:373
150733899161,12cyclictest1763348-21taskset22:25:173
150733899161,12cyclictest1761362-21taskset22:22:403
150733899161,12cyclictest1730448-21taskset22:00:163
150733899161,12cyclictest1651657-21taskset20:59:253
150733899161,12cyclictest1651657-21taskset20:59:243
150733899161,12cyclictest1610692-21taskset20:25:183
150733899161,12cyclictest1576229-21taskset20:00:173
150733899160,12cyclictest1907330-21taskset00:15:173
150733899160,12cyclictest1524012-21chrt19:20:143
150733899159,4cyclictest1722674-21turbostat21:59:553
1507338991513,1cyclictest0-21swapper/322:44:153
1507338991512,1cyclictest0-21swapper/320:05:263
1507338991512,1cyclictest0-21swapper/300:25:183
150733899151,12cyclictest1851755-21taskset23:33:493
150733899151,11cyclictest1832333-21turbostat23:20:003
150733899151,11cyclictest1774223-21taskset22:32:303
150733899151,11cyclictest1716086-21taskset21:48:133
150733899151,11cyclictest1696873-21chrt21:35:073
150733899151,11cyclictest1677366-21turbostat21:20:003
150733899151,11cyclictest1637932-21taskset20:45:223
150733899151,11cyclictest1599968-21taskset20:16:283
150733899151,11cyclictest1568374-21chrt19:55:043
150733899150,12cyclictest1891362-21taskset00:05:153
150733899150,12cyclictest1877458-21taskset23:50:253
150733899150,12cyclictest1754904-21chrt22:17:273
150733899150,12cyclictest1670357-21chrt21:10:223
150733899150,11cyclictest1929513-21taskset00:35:013
17837822141,3sleep20-21swapper/222:40:192
150733899141,9cyclictest15555102sleep319:45:123
1507338991412,1cyclictest0-21swapper/323:20:183
1507338991411,1cyclictest0-21swapper/321:50:123
18048952135,5sleep21805535-21cat22:55:182
17811252130,10sleep00-21swapper/022:40:140
17687472131,2sleep00-21swapper/022:30:150
15545742131,9sleep01554802-21grep19:40:240
307598110,7rtkit-daemon316-21systemd-udevd22:45:440
307598110,5rtkit-daemon1683401-21users21:20:240
307598110,3rtkit-daemon217-21plymouthd21:12:200
16674942110,8sleep11669552-21tr21:10:171
15492432110,8sleep21549281-21cut19:40:142
150733899119,1cyclictest0-21swapper/319:10:013
307598100,6rtkit-daemon3256-21sendmail-mta21:38:330
307598100,6rtkit-daemon1-21systemd19:17:192
307598100,5rtkit-daemon217-21plymouthd19:23:022
307598100,2rtkit-daemon217-21plymouthd19:29:122
307598100,1rtkit-daemon0-21swapper/220:00:262
17105092100,7sleep11711435-21/usr/sbin/munin21:45:161
15807612100,8sleep01580762-21sshd20:02:200
30759890,6rtkit-daemon217-21plymouthd19:10:272
30759890,6rtkit-daemon1514068-21munin-node00:16:172
30759890,5rtkit-daemon714-21snmpd19:09:452
30759890,5rtkit-daemon1818695-21ps23:05:230
30759890,5rtkit-daemon1761419-21kworker/0:0+kacpid23:25:370
30759890,5rtkit-daemon1514068-21munin-node19:46:212
30759890,5rtkit-daemon0-21swapper/021:32:200
30759890,4rtkit-daemon475-21wpa_supplicant21:15:320
30759890,4rtkit-daemon444-21avahi-daemon21:55:030
30759890,4rtkit-daemon1710335-21perl21:45:140
30759890,2rtkit-daemon217-21plymouthd19:37:462
1890489290,1sleep20-21swapper/200:02:142
1769683290,6sleep11771575-21grep22:30:161
1676722290,6sleep11676960-21sed21:15:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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