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2026-07-15 - 06:26
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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 Wed Jul 15, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107872204170,22sleep30-21swapper/319:07:193
107242202168,22sleep00-21swapper/019:06:270
107252201167,23sleep10-21swapper/119:06:271
106992201169,21sleep20-21swapper/219:06:092
2174821700,7sleep21128999cyclictest23:50:112
138491860,1ptp4l10022-21open_files20:10:233
1099628262,11sleep00-21swapper/019:10:010
138491640,1ptp4l401ktimersoftd/321:50:243
167792560,2sleep30-21swapper/319:20:143
147912520,2sleep0111rcuc/021:25:200
1385915236,9phc2sys0-21swapper/319:10:013
50798480,3rtkit-daemon506-21rtkit-daemon22:17:410
11287994540,3cyclictest3918-21dump-pmu-power22:10:000
138491440,0ptp4l401ktimersoftd/300:18:503
138491430,0ptp4l401ktimersoftd/323:44:443
138491430,0ptp4l401ktimersoftd/321:05:213
138491430,0ptp4l401ktimersoftd/320:03:043
11289994331,4cyclictest33-21ksoftirqd/220:15:002
11289994238,2cyclictest31049-21latency_hist19:50:002
1129099414,8cyclictest121rcu_preempt22:19:593
11289994129,10cyclictest33-21ksoftirqd/219:30:002
11287994136,3cyclictest9196-21sh23:25:000
138491400,0ptp4l401ktimersoftd/321:01:583
11290994035,3cyclictest41-21ksoftirqd/323:10:013
11290994029,9cyclictest41-21ksoftirqd/323:25:193
11290994029,9cyclictest41-21ksoftirqd/323:25:193
11288994034,4cyclictest25-21ksoftirqd/120:00:011
138491390,0ptp4l401ktimersoftd/321:56:213
11290993934,3cyclictest41-21ksoftirqd/321:30:003
11290993927,10cyclictest41-21ksoftirqd/319:40:243
11289993928,9cyclictest33-21ksoftirqd/200:30:152
11287993934,3cyclictest9-21ksoftirqd/019:50:000
11287993934,3cyclictest18692-21ls19:25:000
11287993933,3cyclictest9-21ksoftirqd/019:40:010
11290993834,3cyclictest41-21ksoftirqd/321:45:003
11289993833,3cyclictest33-21ksoftirqd/219:30:182
11289993833,2cyclictest33-21ksoftirqd/221:30:012
11289993823,3cyclictest33-21ksoftirqd/220:30:002
11290993733,2cyclictest41-21ksoftirqd/320:59:593
11290993732,3cyclictest41-21ksoftirqd/300:25:163
11290993731,3cyclictest41-21ksoftirqd/321:20:203
11290993731,3cyclictest41-21ksoftirqd/321:20:203
11290993726,9cyclictest41-21ksoftirqd/321:10:233
11289993733,2cyclictest33-21ksoftirqd/222:50:002
11289993733,2cyclictest33-21ksoftirqd/221:45:002
11289993732,3cyclictest33-21ksoftirqd/220:15:202
11289993731,3cyclictest33-21ksoftirqd/222:14:592
11287993732,3cyclictest9-21ksoftirqd/020:00:000
11287993731,3cyclictest9-21ksoftirqd/000:35:200
11290993632,3cyclictest41-21ksoftirqd/319:35:253
11290993632,2cyclictest41-21ksoftirqd/319:25:143
11290993631,3cyclictest41-21ksoftirqd/322:00:273
11290993631,3cyclictest41-21ksoftirqd/322:00:273
11290993631,3cyclictest41-21ksoftirqd/321:50:013
11290993630,4cyclictest41-21ksoftirqd/320:27:423
11290993630,3cyclictest41-21ksoftirqd/322:20:113
11290993624,9cyclictest41-21ksoftirqd/319:55:263
11290993624,10cyclictest41-21ksoftirqd/320:15:193
11289993631,3cyclictest33-21ksoftirqd/223:05:142
11289993631,3cyclictest33-21ksoftirqd/221:20:202
11289993631,3cyclictest33-21ksoftirqd/221:20:202
11289993631,3cyclictest33-21ksoftirqd/220:25:012
11289993631,3cyclictest33-21ksoftirqd/220:05:182
11289993631,3cyclictest33-21ksoftirqd/219:10:252
11289993630,4cyclictest33-21ksoftirqd/222:07:332
11289993630,4cyclictest33-21ksoftirqd/221:16:382
11289993630,4cyclictest33-21ksoftirqd/219:24:132
11289993630,3cyclictest33-21ksoftirqd/200:11:522
11289993629,4cyclictest33-21ksoftirqd/220:45:102
11289993627,8cyclictest33-21ksoftirqd/220:40:192
11289993627,7cyclictest33-21ksoftirqd/220:34:312
11288993631,3cyclictest16594-21sh23:40:001
11288993630,4cyclictest25-21ksoftirqd/122:09:541
11288993630,4cyclictest25-21ksoftirqd/121:22:351
11288993630,4cyclictest25-21ksoftirqd/121:22:351
11288993629,4cyclictest25-21ksoftirqd/120:17:361
11287993632,2cyclictest9-21ksoftirqd/021:25:010
11287993632,2cyclictest9-21ksoftirqd/021:25:000
11287993631,3cyclictest9-21ksoftirqd/020:20:250
11287993630,4cyclictest9-21ksoftirqd/000:22:350
11287993630,4cyclictest9-21ksoftirqd/000:03:540
11287993630,3cyclictest9-21ksoftirqd/020:35:140
11287993629,4cyclictest9-21ksoftirqd/019:35:000
1128799362,4cyclictest121rcu_preempt21:20:000
138491350,1ptp4l401ktimersoftd/322:44:113
138491350,0ptp4l401ktimersoftd/322:48:113
11290993530,3cyclictest41-21ksoftirqd/323:55:003
11290993529,4cyclictest41-21ksoftirqd/323:37:363
11290993529,3cyclictest41-21ksoftirqd/323:20:033
11290993529,3cyclictest41-21ksoftirqd/320:20:283
11289993531,3cyclictest33-21ksoftirqd/223:30:192
11289993530,3cyclictest33-21ksoftirqd/223:40:002
11289993530,3cyclictest33-21ksoftirqd/221:50:202
11289993529,4cyclictest33-21ksoftirqd/223:23:072
11289993529,4cyclictest33-21ksoftirqd/223:01:132
11289993529,4cyclictest33-21ksoftirqd/222:38:102
11289993529,4cyclictest33-21ksoftirqd/220:58:022
11289993529,4cyclictest33-21ksoftirqd/219:50:212
11289993529,3cyclictest33-21ksoftirqd/200:20:142
11288993530,3cyclictest25-21ksoftirqd/100:25:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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