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2025-12-01 - 12:46
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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 rack5slot2.osadl.org (updated Mon Dec 01, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289792201184,12sleep00-21swapper/019:07:180
289822200183,12sleep30-21swapper/319:07:213
290622191177,9sleep10-21swapper/119:08:231
288382162142,15sleep20-21swapper/219:05:322
142652450,0sleep30-21swapper/321:52:393
226472110,0sleep00-21swapper/023:34:480
2936299102,4cyclictest23206-21munin-run22:30:000
293729991,4cyclictest0-21swapper/323:00:133
293629992,4cyclictest25500-21munin-run23:20:000
293629991,4cyclictest17430-21awk00:05:010
23686290,0sleep10-21swapper/123:02:111
293689970,5cyclictest0-21swapper/222:20:102
293629970,4cyclictest10923-21munin-run22:39:590
293729966,0cyclictest391ktimersoftd/319:15:133
293729965,0cyclictest40-21ksoftirqd/300:35:173
293689960,5cyclictest0-21swapper/221:55:152
293639961,3cyclictest0-21swapper/122:55:121
293629960,5cyclictest0-21swapper/021:35:130
293629960,3cyclictest10137-21munin-run20:40:000
293729955,0cyclictest40-21ksoftirqd/323:25:123
293729955,0cyclictest40-21ksoftirqd/322:00:133
293729955,0cyclictest40-21ksoftirqd/321:45:133
293729955,0cyclictest40-21ksoftirqd/319:55:113
293729955,0cyclictest0-21swapper/319:30:013
293729953,2cyclictest40-21ksoftirqd/320:55:003
293729953,1cyclictest40-21ksoftirqd/320:15:183
293729952,3cyclictest2088-21irqstats23:40:163
293729950,5cyclictest7273-21ssh00:33:323
293729950,5cyclictest0-21swapper/323:59:393
293729950,5cyclictest0-21swapper/323:05:493
293729950,5cyclictest0-21swapper/320:55:253
293729950,5cyclictest0-21swapper/320:30:013
293729950,5cyclictest0-21swapper/320:25:203
293729950,5cyclictest0-21swapper/300:03:263
293729950,4cyclictest0-21swapper/322:30:133
293729950,3cyclictest0-21swapper/322:20:063
293689955,0cyclictest0-21swapper/223:24:282
293689953,2cyclictest20275-21kworker/2:022:28:012
293689950,5cyclictest0-21swapper/223:48:022
293689950,5cyclictest0-21swapper/221:36:562
293689950,5cyclictest0-21swapper/220:20:162
293689950,5cyclictest0-21swapper/220:10:212
293689950,5cyclictest0-21swapper/200:34:442
293689950,5cyclictest0-21swapper/200:15:152
293689950,0cyclictest0-21swapper/222:17:322
293689950,0cyclictest0-21swapper/200:29:302
293639952,2cyclictest0-21swapper/120:40:131
293639952,2cyclictest0-21swapper/120:35:141
293639951,3cyclictest0-21swapper/121:25:131
293639951,3cyclictest0-21swapper/100:00:121
293639951,2cyclictest0-21swapper/123:30:011
293639951,2cyclictest0-21swapper/121:05:151
293639951,2cyclictest0-21swapper/120:55:131
293629953,1cyclictest225-21systemd-journal21:05:010
293629950,5cyclictest0-21swapper/021:30:140
293629950,5cyclictest0-21swapper/000:34:210
26279250,4sleep026282-21/usr/sbin/munin22:15:150
16945250,0sleep10-21swapper/121:37:481
7527240,0sleep10-21swapper/122:21:231
293729944,0cyclictest40-21ksoftirqd/323:10:133
293729944,0cyclictest40-21ksoftirqd/322:55:153
293729944,0cyclictest40-21ksoftirqd/322:55:003
293729944,0cyclictest40-21ksoftirqd/322:35:143
293729944,0cyclictest40-21ksoftirqd/321:55:163
293729944,0cyclictest40-21ksoftirqd/321:15:153
293729944,0cyclictest40-21ksoftirqd/321:15:143
293729944,0cyclictest40-21ksoftirqd/321:10:133
293729944,0cyclictest40-21ksoftirqd/321:05:163
293729944,0cyclictest40-21ksoftirqd/320:00:123
293729944,0cyclictest40-21ksoftirqd/319:20:163
293729944,0cyclictest391ktimersoftd/322:10:133
293729944,0cyclictest31907-21kworker/3:022:26:013
293729944,0cyclictest31907-21kworker/3:019:49:163
293729944,0cyclictest0-21swapper/323:45:143
293729944,0cyclictest0-21swapper/323:35:213
293729943,1cyclictest9490-21wc20:35:223
293729943,1cyclictest6615-21pmu-power19:25:173
293729943,1cyclictest11111-21grep20:40:153
293729943,1cyclictest0-21swapper/321:40:123
293729943,0cyclictest40-21ksoftirqd/300:15:083
293729942,2cyclictest40-21ksoftirqd/321:35:293
293729942,2cyclictest40-21ksoftirqd/300:10:223
293729942,2cyclictest0-21swapper/319:35:183
293729940,4cyclictest26285-21apt-get22:15:143
293729940,4cyclictest0-21swapper/322:40:123
293729940,4cyclictest0-21swapper/321:25:133
293729940,4cyclictest0-21swapper/320:20:133
293729940,4cyclictest0-21swapper/319:50:143
293729940,4cyclictest0-21swapper/300:27:473
293729940,4cyclictest0-21swapper/300:06:023
293729940,3cyclictest8754-21sh22:05:363
293729940,3cyclictest27926-21grep20:10:153
293729940,3cyclictest22776-21ntpq22:45:183
293729940,3cyclictest21194-21sh23:17:173
293729940,3cyclictest20784-21/usr/sbin/munin23:50:183
293729940,3cyclictest1576-21df21:30:153
293729940,3cyclictest12955-21/usr/sbin/munin00:20:103
293729940,3cyclictest0-21swapper/323:30:113
293729940,1cyclictest26005-21/usr/sbin/munin23:20:173
293729940,1cyclictest25251-21/usr/sbin/munin20:05:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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