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2026-08-01 - 12:55
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Sat Aug 01, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34101012260197,48sleep00-21swapper/019:08:180
34101802257194,48sleep10-21swapper/119:09:091
3410371999287,4cyclictest3491139-21kworker/u8:122:16:001
34636952700,12sleep126-21ksoftirqd/121:15:191
35669752600,5sleep10-21swapper/123:34:161
106799480,3rtkit-daemon0-21swapper/121:02:171
35461352470,4sleep10-21swapper/123:05:211
3410371994514,6cyclictest26-21ksoftirqd/122:30:001
34474332440,1chrt3447335-21/usr/sbin/munin20:40:141
3410371994313,5cyclictest26-21ksoftirqd/120:05:001
3410371994312,5cyclictest26-21ksoftirqd/121:50:001
341036799428,5cyclictest13-21ksoftirqd/020:35:010
341036799411,16cyclictest141rcu_preempt20:00:000
341036799405,3cyclictest141rcu_preempt22:15:590
3410371993912,5cyclictest26-21ksoftirqd/122:50:001
3410371993911,4cyclictest26-21ksoftirqd/123:20:011
3410371993911,4cyclictest26-21ksoftirqd/122:55:001
3410367993919,5cyclictest13-21ksoftirqd/022:35:000
3410367993912,5cyclictest13-21ksoftirqd/021:35:000
341036799388,5cyclictest13-21ksoftirqd/020:15:010
3410367993818,5cyclictest13-21ksoftirqd/023:50:010
3410367993810,5cyclictest13-21ksoftirqd/020:35:000
3410371993711,2cyclictest141rcu_preempt21:52:041
3410367993717,5cyclictest13-21ksoftirqd/000:25:010
3410367993713,5cyclictest13-21ksoftirqd/021:45:020
341037199367,5cyclictest26-21ksoftirqd/100:00:341
3410371993616,5cyclictest26-21ksoftirqd/119:40:011
3410371993611,5cyclictest26-21ksoftirqd/122:00:011
3410371993611,5cyclictest26-21ksoftirqd/120:15:011
106799360,26rtkit-daemon61250irq/132-enp2s021:39:001
341037199356,3cyclictest141rcu_preempt23:00:131
341037199351,6cyclictest26-21ksoftirqd/122:33:331
3410371993515,5cyclictest26-21ksoftirqd/120:20:001
3410371993514,6cyclictest26-21ksoftirqd/121:45:011
3410371993514,6cyclictest26-21ksoftirqd/100:40:001
3410371993513,6cyclictest26-21ksoftirqd/100:25:011
3410371993513,5cyclictest26-21ksoftirqd/120:05:251
3410371993513,4cyclictest26-21ksoftirqd/122:00:201
3410371993513,4cyclictest26-21ksoftirqd/120:45:241
341036799358,6cyclictest13-21ksoftirqd/000:35:000
3410367993516,5cyclictest13-21ksoftirqd/019:35:020
3410367993515,5cyclictest13-21ksoftirqd/020:05:000
341037199349,5cyclictest26-21ksoftirqd/123:29:521
3410371993414,4cyclictest26-21ksoftirqd/100:30:221
3410371993413,5cyclictest26-21ksoftirqd/121:25:011
3410371993413,4cyclictest26-21ksoftirqd/123:54:401
3410371993410,4cyclictest26-21ksoftirqd/122:39:411
341036799348,7cyclictest13-21ksoftirqd/021:20:110
3410367993414,4cyclictest13-21ksoftirqd/020:55:220
3410367993413,6cyclictest13-21ksoftirqd/022:50:010
341037199336,3cyclictest141rcu_preempt21:25:131
3410371993314,4cyclictest26-21ksoftirqd/123:43:291
3410371993313,4cyclictest26-21ksoftirqd/123:10:181
3410371993313,4cyclictest26-21ksoftirqd/122:55:241
3410371993313,4cyclictest26-21ksoftirqd/119:25:211
3410371993312,4cyclictest26-21ksoftirqd/123:37:241
3410371993311,5cyclictest26-21ksoftirqd/123:46:501
341036799339,5cyclictest13-21ksoftirqd/022:25:000
341036799338,5cyclictest13-21ksoftirqd/000:15:230
3410367993314,5cyclictest13-21ksoftirqd/023:35:000
3410367993314,5cyclictest13-21ksoftirqd/022:00:010
3410367993314,5cyclictest13-21ksoftirqd/021:55:000
3410367993314,5cyclictest13-21ksoftirqd/000:00:000
3410367993313,6cyclictest13-21ksoftirqd/000:40:000
3410367993313,5cyclictest13-21ksoftirqd/022:45:010
3410367993313,5cyclictest13-21ksoftirqd/022:15:000
3410367993312,5cyclictest13-21ksoftirqd/023:40:000
3410367993311,5cyclictest13-21ksoftirqd/021:20:010
341037199329,4cyclictest26-21ksoftirqd/100:06:411
341037199329,2cyclictest141rcu_preempt22:10:241
341037199327,4cyclictest26-21ksoftirqd/122:24:301
341037199324,4cyclictest141rcu_preempt22:05:141
3410371993212,4cyclictest26-21ksoftirqd/123:56:251
3410371993212,4cyclictest26-21ksoftirqd/100:26:291
3410371993211,5cyclictest26-21ksoftirqd/120:55:231
3410371993211,5cyclictest26-21ksoftirqd/120:55:011
341036799328,6cyclictest13-21ksoftirqd/023:15:010
3410367993213,6cyclictest13-21ksoftirqd/019:30:010
3410367993213,5cyclictest13-21ksoftirqd/021:45:010
3410367993213,5cyclictest13-21ksoftirqd/021:10:000
3410367993211,6cyclictest13-21ksoftirqd/021:05:010
3410367993211,6cyclictest13-21ksoftirqd/020:24:590
3410367993211,5cyclictest13-21ksoftirqd/021:15:010
3410367993210,7cyclictest13-21ksoftirqd/022:55:130
341037199316,2cyclictest141rcu_preempt20:25:001
3410371993112,9cyclictest141rcu_preempt22:40:201
3410371993112,4cyclictest26-21ksoftirqd/100:15:591
3410371993111,5cyclictest26-21ksoftirqd/119:40:231
3410371993111,4cyclictest26-21ksoftirqd/121:30:221
3410367993116,4cyclictest13-21ksoftirqd/019:45:160
3410367993112,5cyclictest13-21ksoftirqd/020:10:000
3410367993111,5cyclictest13-21ksoftirqd/022:10:010
341037199308,3cyclictest26-21ksoftirqd/119:49:331
341037199308,3cyclictest141rcu_preempt20:35:181
341037199305,3cyclictest141rcu_preempt23:20:111
3410371993012,3cyclictest26-21ksoftirqd/119:10:221
3410371993011,5cyclictest26-21ksoftirqd/120:00:011
341036799309,5cyclictest13-21ksoftirqd/021:35:220
341036799309,4cyclictest13-21ksoftirqd/000:08:240
3410367993025,2cyclictest3586330-21ssh00:00:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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