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2026-06-04 - 17:21
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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 Thu Jun 04, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192062312283,19sleep20-21swapper/207:08:262
192482281255,17sleep10-21swapper/107:08:571
191142264232,21sleep30-21swapper/307:07:133
191432254225,19sleep00-21swapper/007:07:350
39462570,0sleep10-21swapper/109:25:141
251132570,0sleep20-21swapper/209:18:342
136932550,0sleep10-21swapper/112:25:161
87722180,0sleep00-21swapper/012:03:220
59262180,0sleep00-21swapper/011:41:480
80892140,0sleep30-21swapper/311:43:273
278572140,0sleep10-21swapper/109:39:551
229102140,0sleep00-21swapper/012:11:230
183532140,0sleep20-21swapper/209:34:042
1945799122,7cyclictest5138-21ssh12:20:171
26563290,0sleep20-21swapper/212:33:352
194579998,1cyclictest22-21ksoftirqd/111:50:001
194579998,1cyclictest22-21ksoftirqd/111:25:001
194579998,1cyclictest22-21ksoftirqd/109:25:001
194579996,2cyclictest22-21ksoftirqd/107:45:011
194579993,4cyclictest22-21ksoftirqd/112:12:511
194579992,4cyclictest22-21ksoftirqd/111:33:381
6795280,0sleep20-21swapper/212:21:062
20844280,0sleep00-21swapper/011:12:250
194609986,1cyclictest0-21swapper/211:02:212
194609985,2cyclictest28-21ksoftirqd/207:20:012
194579987,1cyclictest22-21ksoftirqd/111:30:001
194579987,1cyclictest22-21ksoftirqd/107:30:011
194579987,1cyclictest211rcuc/111:45:001
194579986,1cyclictest22-21ksoftirqd/108:35:011
194579985,1cyclictest22-21ksoftirqd/110:36:131
194579984,2cyclictest275-21systemd-journal08:03:281
194579984,1cyclictest22-21ksoftirqd/110:52:541
194579983,3cyclictest22-21ksoftirqd/110:48:451
194579983,3cyclictest141rcu_preempt11:37:361
194579983,3cyclictest141rcu_preempt10:08:281
194579983,1cyclictest22-21ksoftirqd/111:51:311
194579982,4cyclictest22-21ksoftirqd/110:10:201
194579982,4cyclictest22-21ksoftirqd/109:32:011
194579982,4cyclictest22-21ksoftirqd/107:55:141
194579982,4cyclictest211rcuc/111:55:101
194579982,1cyclictest141rcu_preempt09:50:501
194579981,5cyclictest22-21ksoftirqd/110:43:581
194579981,5cyclictest211rcuc/109:41:261
194579981,4cyclictest22-21ksoftirqd/110:32:441
194579980,6cyclictest22-21ksoftirqd/111:18:581
194579980,4cyclictest22-21ksoftirqd/111:04:041
194579980,4cyclictest0-21swapper/112:09:171
194529983,3cyclictest10282-21grep09:10:000
21133270,0sleep30-21swapper/309:15:313
194639976,1cyclictest9666-21ssh10:46:063
194639975,2cyclictest34-21ksoftirqd/309:00:003
194639973,3cyclictest658-21snmpd10:30:103
194639973,3cyclictest275-21systemd-journal12:27:353
194639972,3cyclictest275-21systemd-journal11:40:003
194639971,2cyclictest275-21systemd-journal12:05:313
194639970,1cyclictest0-21swapper/309:26:283
194609973,3cyclictest8131-21sshd11:43:292
194609973,3cyclictest658-21snmpd12:38:522
194609973,3cyclictest658-21snmpd10:24:522
194609973,2cyclictest275-21systemd-journal09:30:002
194609971,4cyclictest8058-21munin-plugin-st09:05:002
194609970,4cyclictest17474-21munin-run11:30:002
194579976,1cyclictest22-21ksoftirqd/111:00:001
194579976,1cyclictest22-21ksoftirqd/107:45:011
194579976,1cyclictest22-21ksoftirqd/107:40:011
194579974,2cyclictest22-21ksoftirqd/108:40:011
194579974,2cyclictest22-21ksoftirqd/107:55:011
194579973,1cyclictest22-21ksoftirqd/110:00:271
194579973,1cyclictest22-21ksoftirqd/109:49:591
194579972,1cyclictest22-21ksoftirqd/112:34:151
194579972,1cyclictest22-21ksoftirqd/110:17:521
194579971,4cyclictest22-21ksoftirqd/112:18:441
194579971,4cyclictest22-21ksoftirqd/108:15:181
194579971,4cyclictest22-21ksoftirqd/108:05:011
194579971,4cyclictest22-21ksoftirqd/107:10:151
194579971,4cyclictest14588-21kworker/1:210:20:151
194579971,4cyclictest10767-21apt-get09:10:111
194579971,3cyclictest22-21ksoftirqd/111:08:571
194579970,5cyclictest22-21ksoftirqd/111:11:411
194579970,5cyclictest0-21swapper/112:01:001
194579970,4cyclictest0-21swapper/110:25:051
194579970,1cyclictest21033-21apt-get09:55:131
194529974,2cyclictest19120-21apt-get09:15:100
194529973,3cyclictest658-21snmpd08:36:450
194529973,3cyclictest275-21systemd-journal11:35:470
194529973,3cyclictest275-21systemd-journal10:00:340
194529973,1cyclictest22074-21turbostat08:25:010
194639963,2cyclictest658-21snmpd10:01:543
194639963,2cyclictest658-21snmpd09:12:373
194639963,2cyclictest5551-21rm12:00:523
194639963,2cyclictest29160-21apt-config08:40:003
194639963,2cyclictest275-21systemd-journal11:56:223
194639963,2cyclictest275-21systemd-journal11:52:373
194639963,2cyclictest26195-21ssh10:36:393
194639963,2cyclictest25022-21fschecks_time08:30:133
194639963,2cyclictest21844-21sshd12:10:343
194639963,2cyclictest16129-21ssh09:32:223
194639963,2cyclictest1452-21rm10:21:473
194639963,2cyclictest12789-21ssh11:26:293
194639963,2cyclictest12399-21sh11:07:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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