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2026-08-05 - 15:54
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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 rackaslot8.osadl.org (updated Wed Aug 05, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106182302271,21sleep20-21swapper/207:08:252
106262291227,20sleep00-21swapper/007:08:310
104492263235,18sleep10-21swapper/107:06:271
104162256224,20sleep30-21swapper/307:05:593
307222620,0sleep20-21swapper/210:37:462
226302620,0sleep00-21swapper/010:32:510
314572580,0sleep20-21swapper/212:15:122
38552560,0sleep20-21swapper/212:37:182
110482190,0sleep30-21swapper/312:21:543
138762180,0sleep30-21swapper/311:45:143
37522160,0sleep10-21swapper/110:40:321
292522160,0sleep10-21swapper/111:15:171
131362160,0sleep30-21swapper/312:04:163
22552150,0sleep00-21swapper/010:20:170
214362150,1sleep20-21swapper/210:12:152
104312150,0sleep10-21swapper/109:45:441
69202140,0sleep30-21swapper/310:42:593
10848991310,2cyclictest28-21ksoftirqd/207:40:002
295292120,0sleep00-21swapper/012:13:540
188602120,0sleep30-21swapper/309:50:503
108469997,1cyclictest21287-21ntp_states11:10:171
9459280,1sleep20-21swapper/210:05:152
15129280,0sleep00-21swapper/010:08:450
108529984,3cyclictest275-21systemd-journal11:40:323
108469987,1cyclictest22-21ksoftirqd/111:00:011
108419982,3cyclictest4682-21ssh11:40:000
24442270,0sleep30-21swapper/311:51:023
108529974,2cyclictest17926-21cron08:00:003
108529973,3cyclictest275-21systemd-journal11:58:363
108529973,3cyclictest275-21systemd-journal10:50:303
108529973,3cyclictest23710-21apt-get12:30:123
108529970,7cyclictest3157-21ssh10:00:483
108529970,1cyclictest0-21swapper/310:49:183
108489976,1cyclictest28-21ksoftirqd/209:15:002
108489976,1cyclictest28-21ksoftirqd/209:00:012
108489974,2cyclictest20496-21cron08:20:012
108489973,3cyclictest658-21snmpd12:03:412
108489971,5cyclictest23752-21gltestperf12:10:142
108469976,1cyclictest22-21ksoftirqd/112:35:011
108469976,1cyclictest22-21ksoftirqd/112:10:011
108469976,1cyclictest22-21ksoftirqd/109:25:001
108469973,2cyclictest275-21systemd-journal12:38:581
108469973,1cyclictest0-21swapper/112:28:151
108419976,1cyclictest12-21ksoftirqd/009:40:000
108419974,2cyclictest658-21snmpd10:26:070
108419974,2cyclictest504-21dbus-daemon12:35:130
108419973,3cyclictest658-21snmpd10:35:590
108419973,1cyclictest0-21swapper/009:50:180
108419972,3cyclictest17828-21perf10:50:010
108419971,3cyclictest21336-21dump-pmu-power11:50:000
23118260,0sleep20-21swapper/210:52:422
108529966,0cyclictest0-21swapper/310:06:063
108529966,0cyclictest0-21swapper/309:15:563
108529963,2cyclictest7110-21ssh11:01:443
108529963,2cyclictest658-21snmpd10:23:473
108529963,2cyclictest658-21snmpd08:37:043
108529963,2cyclictest3042-21ssh09:40:093
108529963,2cyclictest28844-21sh09:11:053
108529963,2cyclictest26410-21sshd09:02:593
108529963,2cyclictest25921-21ssh09:33:043
108529963,2cyclictest25753-21ssh10:35:063
108529963,2cyclictest13708-21sh11:05:223
108529963,1cyclictest0-21swapper/312:11:423
108529962,3cyclictest658-21snmpd11:35:163
108529962,3cyclictest658-21snmpd11:25:523
108529962,3cyclictest658-21snmpd11:19:523
108529962,3cyclictest658-21snmpd10:10:563
108529962,3cyclictest658-21snmpd09:55:543
108529962,3cyclictest658-21snmpd09:25:203
108529962,3cyclictest658-21snmpd09:05:373
108529962,3cyclictest658-21snmpd08:17:243
108529962,3cyclictest504-21dbus-daemon10:55:023
108529962,3cyclictest23554-21sshd08:43:003
108529962,3cyclictest14877-11brltty07:41:323
108529962,1cyclictest0-21swapper/312:38:033
108529962,1cyclictest0-21swapper/310:27:553
108529962,1cyclictest0-21swapper/309:20:433
108529961,3cyclictest275-21systemd-journal12:08:373
108529961,3cyclictest275-21systemd-journal08:50:193
108529960,6cyclictest0-21swapper/312:16:083
108529960,6cyclictest0-21swapper/311:20:053
108529960,6cyclictest0-21swapper/309:36:303
108529960,3cyclictest26647-21/usr/sbin/munin10:15:193
108529960,0cyclictest0-21swapper/311:12:153
108529960,0cyclictest0-21swapper/310:31:153
108489963,2cyclictest8318-21sh10:24:332
108489963,2cyclictest658-21snmpd08:29:342
108489963,2cyclictest3373-21ssh09:16:032
108489963,2cyclictest29218-21ssh09:35:282
108489963,2cyclictest27244-21diskmemload11:28:162
108489963,2cyclictest26417-21sshd09:03:012
108489963,2cyclictest23044-21rm09:30:492
108489963,2cyclictest16401-21taskset07:46:582
108489963,2cyclictest13510-21sh12:23:482
108489963,2cyclictest12441-21sh10:45:522
108489962,3cyclictest658-21snmpd12:30:382
108489962,3cyclictest658-21snmpd11:30:492
108489962,3cyclictest658-21snmpd10:56:232
108489962,3cyclictest658-21snmpd10:02:522
108489962,3cyclictest658-21snmpd09:45:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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