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2026-04-27 - 08:50
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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 rackdslot3.osadl.org (updated Mon Apr 27, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179632228163,22sleep00-21swapper/019:06:150
139491207174,22phc2sys0-21swapper/319:06:423
179642204171,22sleep10-21swapper/119:06:161
181872201168,22sleep20-21swapper/219:09:072
2835821530,5sleep11860699cyclictest21:45:131
2937021480,6sleep11860699cyclictest00:00:251
2937021480,6sleep11860699cyclictest00:00:241
1394918465,10phc2sys0-21swapper/319:10:013
247342720,3sleep20-21swapper/219:20:252
18608996631,4cyclictest41-21ksoftirqd/322:35:003
18608996631,4cyclictest41-21ksoftirqd/322:35:003
139391610,1ptp4l401ktimersoftd/300:08:173
103952610,2sleep20-21swapper/200:30:152
103952610,2sleep20-21swapper/200:30:142
18608995827,4cyclictest41-21ksoftirqd/323:05:253
18608995422,3cyclictest41-21ksoftirqd/300:10:153
18608995215,4cyclictest41-21ksoftirqd/320:35:013
18608995215,4cyclictest41-21ksoftirqd/320:35:013
18608995126,2cyclictest121rcu_preempt22:50:133
205792500,1sleep00-21swapper/021:30:010
18607995018,4cyclictest33-21ksoftirqd/219:15:002
184382490,3sleep3391rcuc/323:40:003
18608994842,3cyclictest20869-21turbostat.cron23:45:003
1860899473,3cyclictest121rcu_preempt22:00:013
18608994616,3cyclictest41-21ksoftirqd/300:35:173
18607994615,4cyclictest33-21ksoftirqd/223:24:502
18607994613,6cyclictest33-21ksoftirqd/223:45:162
1860899459,10cyclictest41-21ksoftirqd/319:25:003
18608994517,3cyclictest41-21ksoftirqd/322:35:263
18608994512,4cyclictest41-21ksoftirqd/323:30:003
18607994517,3cyclictest33-21ksoftirqd/220:20:162
1860699450,1cyclictest0-21swapper/119:20:031
18608994415,3cyclictest41-21ksoftirqd/300:30:233
18608994415,3cyclictest41-21ksoftirqd/300:30:233
18608994412,4cyclictest41-21ksoftirqd/323:10:253
18608994412,4cyclictest41-21ksoftirqd/319:45:193
1860799444,3cyclictest121rcu_preempt19:55:192
18607994425,4cyclictest33-21ksoftirqd/223:00:122
18607994425,4cyclictest33-21ksoftirqd/223:00:122
1860899435,9cyclictest41-21ksoftirqd/321:35:203
18608994329,4cyclictest41-21ksoftirqd/319:15:273
18608994311,4cyclictest41-21ksoftirqd/319:29:143
18607994314,3cyclictest33-21ksoftirqd/222:13:532
18608994229,3cyclictest41-21ksoftirqd/323:49:593
18608994227,4cyclictest41-21ksoftirqd/322:05:163
18608994212,3cyclictest41-21ksoftirqd/321:15:273
1860799425,3cyclictest121rcu_preempt22:15:262
1860799425,3cyclictest121rcu_preempt00:15:212
1860799421,5cyclictest33-21ksoftirqd/222:25:172
18605994237,3cyclictest19473-21cron22:35:010
18605994237,3cyclictest19473-21cron22:35:010
139391420,0ptp4l401ktimersoftd/322:00:163
139391420,0ptp4l401ktimersoftd/322:00:153
139391420,0ptp4l401ktimersoftd/321:45:043
1860899416,2cyclictest121rcu_preempt20:55:293
18608994130,9cyclictest41-21ksoftirqd/300:00:013
18608994111,4cyclictest41-21ksoftirqd/322:40:263
18608994111,3cyclictest41-21ksoftirqd/320:46:283
1831324131,4sleep00-21swapper/019:10:010
139391410,0ptp4l401ktimersoftd/323:17:143
1860899408,4cyclictest41-21ksoftirqd/320:00:123
18608994013,2cyclictest41-21ksoftirqd/319:35:163
18607994028,10cyclictest33-21ksoftirqd/222:35:262
18607994025,12cyclictest33-21ksoftirqd/219:40:012
18607994023,5cyclictest33-21ksoftirqd/221:20:002
1860799401,5cyclictest33-21ksoftirqd/221:20:242
18607994010,3cyclictest121rcu_preempt21:10:222
57898390,6rtkit-daemon0-21swapper/120:51:571
1860899398,4cyclictest41-21ksoftirqd/319:33:223
1860899393,10cyclictest41-21ksoftirqd/322:20:173
1860899391,5cyclictest41-21ksoftirqd/300:26:053
1860899390,5cyclictest41-21ksoftirqd/321:27:493
1860899390,2cyclictest121rcu_preempt21:53:433
1860799392,3cyclictest33-21ksoftirqd/223:55:182
1860799392,3cyclictest33-21ksoftirqd/223:30:162
1860799392,3cyclictest33-21ksoftirqd/220:00:262
18607993917,3cyclictest33-21ksoftirqd/220:40:002
1860799390,5cyclictest33-21ksoftirqd/222:20:262
1860699390,37cyclictest0-21swapper/121:00:441
1860899388,4cyclictest41-21ksoftirqd/321:05:163
18608993826,3cyclictest41-21ksoftirqd/322:55:163
1860899381,5cyclictest41-21ksoftirqd/323:32:453
18607993834,2cyclictest33-21ksoftirqd/223:40:002
18607993834,2cyclictest33-21ksoftirqd/220:11:402
18607993833,3cyclictest33-21ksoftirqd/223:10:002
18607993833,3cyclictest33-21ksoftirqd/200:25:002
18607993825,3cyclictest33-21ksoftirqd/223:19:592
1860799382,3cyclictest121rcu_preempt22:57:502
1860799382,3cyclictest121rcu_preempt19:25:362
1860799381,3cyclictest121rcu_preempt22:49:402
1860699380,37cyclictest0-21swapper/121:42:031
57898370,5rtkit-daemon0-21swapper/121:39:351
1860899377,4cyclictest41-21ksoftirqd/321:10:243
18608993733,2cyclictest41-21ksoftirqd/319:59:593
18608993724,3cyclictest41-21ksoftirqd/320:10:183
1860899370,5cyclictest41-21ksoftirqd/323:04:173
1860899370,5cyclictest41-21ksoftirqd/323:04:173
1860899370,5cyclictest41-21ksoftirqd/322:18:413
1860799375,3cyclictest121rcu_preempt22:50:272
1860799375,2cyclictest121rcu_preempt21:45:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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