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2026-04-17 - 05:58
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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 Fri Apr 17, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230164,22phc2sys0-21swapper/319:07:403
230432203170,22sleep20-21swapper/219:06:532
230422202169,22sleep10-21swapper/119:06:511
229302202168,22sleep00-21swapper/019:05:290
551721620,6sleep22371899cyclictest20:45:162
1295021170,3sleep32371999cyclictest21:00:173
23719997126,9cyclictest41-21ksoftirqd/322:10:003
23719996727,7cyclictest41-21ksoftirqd/323:10:163
306832640,7sleep12371799cyclictest23:50:241
23719996126,4cyclictest41-21ksoftirqd/320:06:203
2371999594,8cyclictest41-21ksoftirqd/300:00:253
23719995922,9cyclictest41-21ksoftirqd/319:51:533
23719995922,9cyclictest41-21ksoftirqd/319:51:533
23719995921,9cyclictest41-21ksoftirqd/321:11:123
61732580,1sleep16177-21sed23:00:181
23719995722,7cyclictest41-21ksoftirqd/320:40:223
23719995722,4cyclictest41-21ksoftirqd/300:30:013
23719995527,11cyclictest41-21ksoftirqd/321:50:233
2371999546,8cyclictest41-21ksoftirqd/323:45:233
23719995426,10cyclictest41-21ksoftirqd/322:25:213
23719995417,7cyclictest41-21ksoftirqd/320:50:123
2371999536,9cyclictest41-21ksoftirqd/321:35:163
2371999536,9cyclictest41-21ksoftirqd/321:25:113
2371999535,9cyclictest41-21ksoftirqd/323:30:123
2371999534,10cyclictest41-21ksoftirqd/322:05:003
23719995326,9cyclictest41-21ksoftirqd/320:25:173
23719995316,7cyclictest41-21ksoftirqd/300:15:113
2371999525,9cyclictest41-21ksoftirqd/323:55:013
2371999525,8cyclictest41-21ksoftirqd/321:45:123
2371999525,10cyclictest41-21ksoftirqd/319:40:003
23719995221,10cyclictest41-21ksoftirqd/300:30:153
2371999516,8cyclictest41-21ksoftirqd/323:20:223
2371999515,9cyclictest41-21ksoftirqd/322:45:143
2371999515,9cyclictest41-21ksoftirqd/319:45:203
2371999515,9cyclictest41-21ksoftirqd/319:15:153
2371999515,8cyclictest41-21ksoftirqd/323:05:133
2371999515,8cyclictest41-21ksoftirqd/320:15:173
2371999514,10cyclictest41-21ksoftirqd/321:15:163
2371999506,11cyclictest41-21ksoftirqd/322:30:143
2371999505,8cyclictest41-21ksoftirqd/323:40:263
2371999505,8cyclictest41-21ksoftirqd/322:40:153
2371999505,10cyclictest41-21ksoftirqd/300:10:263
2371999504,8cyclictest41-21ksoftirqd/320:00:133
2371999503,8cyclictest41-21ksoftirqd/322:15:153
2371999503,8cyclictest41-21ksoftirqd/319:25:253
23719995016,6cyclictest41-21ksoftirqd/320:45:153
2371999495,8cyclictest41-21ksoftirqd/321:05:243
2371999494,8cyclictest41-21ksoftirqd/321:55:223
2371999493,6cyclictest41-21ksoftirqd/322:25:003
2371999492,7cyclictest41-21ksoftirqd/323:25:173
2371999492,7cyclictest41-21ksoftirqd/323:25:173
2371999492,6cyclictest41-21ksoftirqd/320:30:143
23717994920,3cyclictest25-21ksoftirqd/100:10:241
23717994919,4cyclictest25-21ksoftirqd/123:19:591
23717994918,7cyclictest25-21ksoftirqd/120:30:001
2371999485,8cyclictest41-21ksoftirqd/320:10:223
2371999485,6cyclictest41-21ksoftirqd/322:35:133
2371999485,10cyclictest41-21ksoftirqd/320:20:153
2371999483,8cyclictest41-21ksoftirqd/323:40:013
2371999483,7cyclictest41-21ksoftirqd/321:25:003
2371999483,7cyclictest41-21ksoftirqd/321:25:003
2371999483,6cyclictest41-21ksoftirqd/321:35:013
2371999483,5cyclictest41-21ksoftirqd/321:00:003
2371999481,10cyclictest41-21ksoftirqd/322:50:243
2371999481,10cyclictest41-21ksoftirqd/322:50:243
23719994740,4cyclictest7902-21sh19:45:003
2371999473,6cyclictest41-21ksoftirqd/319:10:153
2371999473,6cyclictest41-21ksoftirqd/319:10:153
2371999472,6cyclictest41-21ksoftirqd/322:10:203
2371999472,6cyclictest41-21ksoftirqd/322:10:203
2371999472,5cyclictest41-21ksoftirqd/320:40:003
2371899475,7cyclictest33-21ksoftirqd/223:00:012
2371999467,10cyclictest41-21ksoftirqd/322:55:273
2371999466,9cyclictest41-21ksoftirqd/300:35:183
23719994642,2cyclictest391rcuc/300:05:213
2371999463,5cyclictest41-21ksoftirqd/319:55:153
2371999463,10cyclictest41-21ksoftirqd/300:20:153
23717994616,4cyclictest25-21ksoftirqd/100:15:281
23717994613,3cyclictest25-21ksoftirqd/122:00:001
2371999455,9cyclictest41-21ksoftirqd/319:20:193
2371999454,8cyclictest41-21ksoftirqd/323:19:593
2371999454,8cyclictest41-21ksoftirqd/321:40:183
23718994515,3cyclictest33-21ksoftirqd/223:40:012
23718994515,3cyclictest33-21ksoftirqd/219:15:152
23718994512,6cyclictest33-21ksoftirqd/223:10:142
2371799457,3cyclictest25-21ksoftirqd/119:30:191
23717994519,6cyclictest25-21ksoftirqd/121:05:171
23718994414,4cyclictest33-21ksoftirqd/220:20:152
23718994412,6cyclictest33-21ksoftirqd/222:55:012
23718994412,6cyclictest33-21ksoftirqd/222:55:012
2371799445,8cyclictest25-21ksoftirqd/119:25:241
23717994423,4cyclictest25-21ksoftirqd/121:50:191
23717994420,10cyclictest25-21ksoftirqd/123:25:181
23717994420,10cyclictest25-21ksoftirqd/123:25:181
23717994415,7cyclictest25-21ksoftirqd/120:40:011
23717994411,6cyclictest25-21ksoftirqd/122:20:261
2371799440,4cyclictest5180-21sendmail-msp23:00:011
2371999435,7cyclictest41-21ksoftirqd/323:55:273
23718994328,12cyclictest33-21ksoftirqd/219:55:002
23718994328,12cyclictest33-21ksoftirqd/219:55:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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