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2026-05-19 - 05:30
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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 rackdslot4.osadl.org (updated Tue May 19, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156652227162,22sleep10-21swapper/119:05:491
156662208165,31sleep20-21swapper/219:05:502
138591204170,23phc2sys0-21swapper/319:09:493
157362199166,22sleep00-21swapper/019:06:440
1385918662,16phc2sys0-21swapper/319:10:013
138491620,2ptp4l0-21swapper/323:15:583
16295995624,3cyclictest41-21ksoftirqd/321:35:003
16295995624,3cyclictest41-21ksoftirqd/321:35:003
16295995522,10cyclictest41-21ksoftirqd/300:00:283
16295995427,4cyclictest41-21ksoftirqd/321:25:133
16295995420,8cyclictest41-21ksoftirqd/322:20:003
160272540,2sleep10-21swapper/120:15:011
16295995223,8cyclictest41-21ksoftirqd/320:00:173
16295995123,3cyclictest41-21ksoftirqd/322:50:243
16295995118,4cyclictest41-21ksoftirqd/321:45:003
16295995117,4cyclictest41-21ksoftirqd/300:30:253
16295995114,7cyclictest41-21ksoftirqd/319:50:003
16295995025,7cyclictest41-21ksoftirqd/323:15:013
16295995023,3cyclictest41-21ksoftirqd/319:40:253
16295995020,3cyclictest41-21ksoftirqd/320:50:223
1629599500,3cyclictest41-21ksoftirqd/320:20:013
16292995044,4cyclictest3705-21awk23:05:000
16295994922,4cyclictest41-21ksoftirqd/300:10:273
16295994922,4cyclictest41-21ksoftirqd/300:10:273
16295994919,7cyclictest41-21ksoftirqd/319:20:123
16295994917,8cyclictest41-21ksoftirqd/323:35:123
16295994917,8cyclictest41-21ksoftirqd/323:35:123
16295994913,4cyclictest41-21ksoftirqd/322:50:003
1629599485,3cyclictest16796-21kworker/3:120:10:013
1629599485,3cyclictest16796-21kworker/3:120:10:013
1629599484,3cyclictest121rcu_preempt19:15:153
16295994836,3cyclictest41-21ksoftirqd/320:30:003
16295994829,17cyclictest41-21ksoftirqd/321:20:123
16295994824,6cyclictest41-21ksoftirqd/323:30:003
16295994820,7cyclictest41-21ksoftirqd/319:50:133
16295994818,3cyclictest41-21ksoftirqd/323:42:453
16295994817,3cyclictest41-21ksoftirqd/300:20:133
16295994814,8cyclictest41-21ksoftirqd/322:20:243
16295994810,4cyclictest41-21ksoftirqd/322:35:263
16295994810,4cyclictest41-21ksoftirqd/322:35:263
16295994718,3cyclictest41-21ksoftirqd/320:55:253
16295994718,3cyclictest41-21ksoftirqd/320:55:243
16295994717,4cyclictest41-21ksoftirqd/323:00:173
16295994714,7cyclictest41-21ksoftirqd/300:35:143
16295994713,7cyclictest41-21ksoftirqd/320:30:183
16295994711,4cyclictest41-21ksoftirqd/319:25:123
16295994620,7cyclictest41-21ksoftirqd/321:55:243
16295994619,7cyclictest41-21ksoftirqd/321:10:183
16295994619,7cyclictest41-21ksoftirqd/300:15:233
16295994615,7cyclictest41-21ksoftirqd/323:00:013
16295994615,10cyclictest41-21ksoftirqd/323:55:153
16293994639,4cyclictest18544-21cron22:30:011
1629599456,8cyclictest41-21ksoftirqd/323:50:013
16295994519,4cyclictest41-21ksoftirqd/323:05:233
1629599451,8cyclictest41-21ksoftirqd/321:05:003
16295994518,3cyclictest41-21ksoftirqd/320:47:293
16295994515,3cyclictest41-21ksoftirqd/323:54:563
1629599448,7cyclictest41-21ksoftirqd/322:05:153
16295994414,4cyclictest41-21ksoftirqd/322:30:223
16295994414,11cyclictest41-21ksoftirqd/323:20:233
16295994413,4cyclictest41-21ksoftirqd/322:40:173
16295994412,9cyclictest41-21ksoftirqd/319:40:013
16295994412,8cyclictest41-21ksoftirqd/320:10:153
16295994412,4cyclictest41-21ksoftirqd/320:35:133
16295994411,8cyclictest41-21ksoftirqd/322:10:153
16295994411,10cyclictest41-21ksoftirqd/319:55:133
1629499440,2cyclictest0-21swapper/221:15:232
138491440,0ptp4l401ktimersoftd/321:45:223
1629599439,8cyclictest41-21ksoftirqd/321:20:013
1629599434,3cyclictest121rcu_preempt00:09:553
16295994311,9cyclictest41-21ksoftirqd/321:50:173
138491430,1ptp4l401ktimersoftd/321:05:183
1629599426,10cyclictest41-21ksoftirqd/320:40:203
16295994217,4cyclictest41-21ksoftirqd/323:30:173
16295994210,8cyclictest41-21ksoftirqd/320:25:013
1629599419,8cyclictest41-21ksoftirqd/321:35:173
1629599418,4cyclictest41-21ksoftirqd/319:30:143
16295994010,10cyclictest41-21ksoftirqd/300:25:123
1629499400,37cyclictest10029-21ls23:15:232
16293994035,3cyclictest6226-21cron22:05:001
16293994034,3cyclictest31101-21wc22:55:141
1629599387,7cyclictest41-21ksoftirqd/322:00:143
16295993728,3cyclictest41-21ksoftirqd/322:28:003
1629399370,36cyclictest0-21swapper/120:38:031
16292993732,3cyclictest9-21ksoftirqd/020:31:550
16292993731,4cyclictest9-21ksoftirqd/019:21:320
16292993714,4cyclictest798-21idleruntime-cro20:49:590
16294993630,4cyclictest33-21ksoftirqd/221:41:072
16294993630,4cyclictest33-21ksoftirqd/219:34:452
16293993630,4cyclictest25-21ksoftirqd/121:39:001
16292993630,4cyclictest9-21ksoftirqd/019:26:290
16292993630,4cyclictest9-21ksoftirqd/019:13:290
16292993613,3cyclictest5469-21ls23:05:240
16294993529,4cyclictest33-21ksoftirqd/223:12:372
16294993529,4cyclictest33-21ksoftirqd/220:45:502
16293993530,3cyclictest25-21ksoftirqd/122:48:371
16293993530,3cyclictest25-21ksoftirqd/100:10:131
16293993530,3cyclictest25-21ksoftirqd/100:10:121
16293993529,4cyclictest25-21ksoftirqd/121:54:541
16293993529,4cyclictest25-21ksoftirqd/121:11:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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