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2026-06-22 - 09:01
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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 Mon Jun 22, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591236169,23phc2sys0-21swapper/319:06:463
148092203168,23sleep00-21swapper/019:06:340
147612202169,21sleep20-21swapper/219:06:042
147652201167,23sleep10-21swapper/119:06:061
1606121610,5sleep11536599cyclictest00:35:181
1507328363,11sleep10-21swapper/119:10:001
187622620,5sleep318768-21irqrtprio19:15:183
15365996056,2cyclictest231rcuc/122:03:471
15365995956,2cyclictest231rcuc/122:31:271
15365995854,2cyclictest231rcuc/121:49:111
173182560,2sleep20-21swapper/220:17:242
138491550,1ptp4l401ktimersoftd/320:51:293
43132530,1sleep00-21swapper/022:00:240
1536599536,16cyclictest5796-21sed00:15:131
50798480,1rtkit-daemon506-21rtkit-daemon20:42:340
1536799483,42cyclictest12407-21grep23:25:013
1536799471,42cyclictest29833-21dump-pmu-power21:50:003
15365994717,3cyclictest25-21ksoftirqd/122:47:091
15365994717,3cyclictest25-21ksoftirqd/121:39:411
1536599471,43cyclictest5214-21dump-pmu-power19:55:011
15365994617,3cyclictest25-21ksoftirqd/119:46:041
15365994617,3cyclictest25-21ksoftirqd/119:46:041
1536599455,7cyclictest25-21ksoftirqd/120:14:561
15365994522,9cyclictest25-21ksoftirqd/121:30:241
15365994517,7cyclictest25-21ksoftirqd/123:01:171
15365994517,3cyclictest25-21ksoftirqd/123:41:081
15365994441,2cyclictest231rcuc/120:36:051
1536599443,5cyclictest25-21ksoftirqd/121:44:551
1536599443,5cyclictest25-21ksoftirqd/120:20:341
15365994418,7cyclictest25-21ksoftirqd/120:52:151
15365994417,8cyclictest25-21ksoftirqd/123:13:311
15365994417,7cyclictest25-21ksoftirqd/100:03:391
15365994341,1cyclictest231rcuc/123:30:081
15365994316,6cyclictest25-21ksoftirqd/122:59:121
15364994338,3cyclictest7228-21sshd23:12:050
138491430,0ptp4l401ktimersoftd/322:45:183
15367994230,9cyclictest41-21ksoftirqd/300:05:303
15366994230,9cyclictest33-21ksoftirqd/220:20:232
15365994239,2cyclictest231rcuc/122:11:261
15365994233,6cyclictest25-21ksoftirqd/123:50:001
138491420,0ptp4l401ktimersoftd/321:23:213
138491420,0ptp4l401ktimersoftd/320:35:393
138491420,0ptp4l401ktimersoftd/319:39:073
138491420,0ptp4l401ktimersoftd/300:01:073
134991420,1getstats22419-1kworker/3:3H21:40:063
15366994136,3cyclictest33-21ksoftirqd/222:35:002
1536599414,7cyclictest25-21ksoftirqd/123:53:531
138491410,1ptp4l401ktimersoftd/322:33:243
15367994034,3cyclictest41-21ksoftirqd/321:00:003
15366994035,3cyclictest33-21ksoftirqd/223:55:012
1536799395,3cyclictest121rcu_preempt20:00:173
15367993935,2cyclictest41-21ksoftirqd/321:40:013
15367993934,3cyclictest41-21ksoftirqd/320:15:013
15366993935,3cyclictest33-21ksoftirqd/200:39:592
15366993925,3cyclictest33-21ksoftirqd/220:40:142
15365993934,3cyclictest25-21ksoftirqd/123:25:011
135191390,6getstats1536799cyclictest22:04:433
15367993833,3cyclictest41-21ksoftirqd/319:45:133
15367993833,3cyclictest41-21ksoftirqd/319:45:133
15367993827,9cyclictest41-21ksoftirqd/319:41:233
15366993834,2cyclictest33-21ksoftirqd/220:40:002
15366993833,3cyclictest33-21ksoftirqd/223:10:002
15366993832,3cyclictest33-21ksoftirqd/223:20:002
15366993832,3cyclictest33-21ksoftirqd/222:45:002
15365993816,8cyclictest25-21ksoftirqd/120:00:241
134991380,2getstats0-21swapper/322:40:273
1536799374,3cyclictest121rcu_preempt20:30:183
1536799373,3cyclictest41-21ksoftirqd/322:58:303
15367993733,2cyclictest41-21ksoftirqd/320:20:003
15367993732,3cyclictest41-21ksoftirqd/321:20:003
1536799372,7cyclictest41-21ksoftirqd/323:00:223
1536799372,3cyclictest41-21ksoftirqd/323:05:183
15366993732,3cyclictest33-21ksoftirqd/223:55:132
15366993732,3cyclictest33-21ksoftirqd/219:45:242
15366993732,3cyclictest33-21ksoftirqd/219:45:242
15366993732,3cyclictest33-21ksoftirqd/200:10:192
15366993731,4cyclictest33-21ksoftirqd/219:54:212
15366993731,3cyclictest33-21ksoftirqd/223:45:242
15366993731,3cyclictest33-21ksoftirqd/222:15:202
15366993730,4cyclictest33-21ksoftirqd/221:50:002
1536599377,8cyclictest25-21ksoftirqd/123:05:231
15365993730,4cyclictest25-21ksoftirqd/119:16:371
1536599372,3cyclictest25-21ksoftirqd/121:18:551
1536599371,5cyclictest25-21ksoftirqd/119:24:331
15364993731,4cyclictest9-21ksoftirqd/021:23:530
15367993633,2cyclictest41-21ksoftirqd/300:15:253
15367993632,2cyclictest41-21ksoftirqd/319:55:273
15367993632,2cyclictest41-21ksoftirqd/300:35:133
15367993631,3cyclictest41-21ksoftirqd/322:05:243
15367993631,3cyclictest41-21ksoftirqd/320:20:263
15367993631,2cyclictest41-21ksoftirqd/323:50:133
15367993630,3cyclictest41-21ksoftirqd/321:10:253
15367993630,3cyclictest41-21ksoftirqd/300:35:013
15367993629,3cyclictest41-21ksoftirqd/321:00:103
1536799362,4cyclictest41-21ksoftirqd/320:25:283
15366993632,3cyclictest33-21ksoftirqd/219:15:192
15366993632,2cyclictest33-21ksoftirqd/200:15:142
15366993631,3cyclictest33-21ksoftirqd/222:55:172
15366993631,3cyclictest33-21ksoftirqd/222:50:002
15366993631,3cyclictest33-21ksoftirqd/221:10:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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