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2026-04-10 - 04:09
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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 Fri Apr 10, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72222205172,22sleep10-21swapper/119:08:551
72852204170,22sleep00-21swapper/019:09:410
138591204170,22phc2sys0-21swapper/319:05:043
69132201168,22sleep20-21swapper/219:05:292
868121510,1sleep10-21swapper/120:15:211
7603996832,3cyclictest33-21ksoftirqd/219:20:162
7603996127,9cyclictest33-21ksoftirqd/223:50:002
7603996120,5cyclictest33-21ksoftirqd/221:40:222
7603996120,5cyclictest33-21ksoftirqd/221:40:222
7603996117,4cyclictest33-21ksoftirqd/221:25:002
251232610,2sleep30-21swapper/321:55:163
257582600,2sleep20-21swapper/223:00:182
7604995927,4cyclictest41-21ksoftirqd/319:10:253
7603995922,4cyclictest33-21ksoftirqd/219:50:172
7603995920,4cyclictest33-21ksoftirqd/223:05:192
7603995822,4cyclictest33-21ksoftirqd/219:30:282
7603995820,4cyclictest33-21ksoftirqd/221:50:222
7603995819,4cyclictest33-21ksoftirqd/222:05:142
7603995818,8cyclictest33-21ksoftirqd/222:30:222
239442580,2sleep10-21swapper/122:55:231
202152580,2sleep30-21swapper/323:55:153
7604995727,3cyclictest41-21ksoftirqd/322:25:203
7604995716,4cyclictest41-21ksoftirqd/319:25:013
7603995728,4cyclictest33-21ksoftirqd/219:10:142
7603995620,4cyclictest33-21ksoftirqd/219:55:192
7603995620,4cyclictest33-21ksoftirqd/219:55:192
7603995619,8cyclictest33-21ksoftirqd/223:59:572
7603995619,4cyclictest33-21ksoftirqd/221:48:332
7603995615,4cyclictest33-21ksoftirqd/223:15:002
7603995524,9cyclictest33-21ksoftirqd/200:30:272
7603995516,7cyclictest33-21ksoftirqd/220:35:212
7603995516,10cyclictest33-21ksoftirqd/200:10:222
7603995516,10cyclictest33-21ksoftirqd/200:10:222
7603995513,8cyclictest33-21ksoftirqd/222:45:362
7604995424,3cyclictest41-21ksoftirqd/300:05:153
7603995417,5cyclictest33-21ksoftirqd/220:10:112
7603995417,4cyclictest33-21ksoftirqd/222:50:202
7603995416,9cyclictest33-21ksoftirqd/219:18:562
7604995325,3cyclictest41-21ksoftirqd/320:00:013
7604995325,3cyclictest41-21ksoftirqd/320:00:013
7603995324,8cyclictest33-21ksoftirqd/221:05:112
7603995317,9cyclictest33-21ksoftirqd/221:10:142
7603995317,9cyclictest33-21ksoftirqd/221:10:142
7603995314,10cyclictest33-21ksoftirqd/220:50:012
7603995310,8cyclictest33-21ksoftirqd/222:25:192
7603995221,11cyclictest33-21ksoftirqd/223:25:202
7603995211,2cyclictest33-21ksoftirqd/220:05:172
760499513,19cyclictest41-21ksoftirqd/319:55:013
760399514,6cyclictest33-21ksoftirqd/221:55:192
760399514,5cyclictest33-21ksoftirqd/220:55:142
7603995117,8cyclictest33-21ksoftirqd/220:20:182
7603995117,8cyclictest33-21ksoftirqd/220:19:552
7603995114,4cyclictest33-21ksoftirqd/223:40:362
7604995022,4cyclictest41-21ksoftirqd/322:50:143
7604995018,3cyclictest41-21ksoftirqd/322:30:253
7604995013,7cyclictest41-21ksoftirqd/320:40:013
7603995014,8cyclictest33-21ksoftirqd/223:30:122
138491500,1ptp4l401ktimersoftd/319:37:403
760399497,3cyclictest33-21ksoftirqd/223:50:242
760399496,8cyclictest33-21ksoftirqd/222:15:242
760399495,4cyclictest33-21ksoftirqd/200:25:252
760399494,7cyclictest33-21ksoftirqd/220:30:262
760399494,7cyclictest33-21ksoftirqd/220:30:262
760399494,5cyclictest33-21ksoftirqd/219:25:142
760399493,9cyclictest33-21ksoftirqd/219:40:002
7603994918,4cyclictest33-21ksoftirqd/221:27:062
7603994916,3cyclictest33-21ksoftirqd/222:42:312
7603994915,9cyclictest33-21ksoftirqd/222:03:082
7603994915,8cyclictest33-21ksoftirqd/221:01:462
7603994915,5cyclictest33-21ksoftirqd/200:04:402
7603994915,10cyclictest33-21ksoftirqd/222:57:312
7603994914,8cyclictest33-21ksoftirqd/223:20:012
7603994914,4cyclictest33-21ksoftirqd/219:45:132
7604994820,3cyclictest41-21ksoftirqd/319:30:133
7604994817,3cyclictest41-21ksoftirqd/320:20:203
760499480,4cyclictest2131-21apt-config22:15:003
760499480,4cyclictest2131-21apt-config22:15:003
760399485,9cyclictest33-21ksoftirqd/222:25:002
760399484,3cyclictest33-21ksoftirqd/220:40:192
7603994815,4cyclictest33-21ksoftirqd/220:53:372
7603994812,9cyclictest33-21ksoftirqd/221:35:232
760499472,2cyclictest121rcu_preempt00:20:003
7604994715,5cyclictest41-21ksoftirqd/300:35:113
760399476,2cyclictest33-21ksoftirqd/200:05:172
760399475,3cyclictest33-21ksoftirqd/219:40:222
760399474,6cyclictest33-21ksoftirqd/221:30:152
7603994717,4cyclictest33-21ksoftirqd/221:15:542
7603994713,9cyclictest33-21ksoftirqd/222:36:182
7604994623,3cyclictest41-21ksoftirqd/300:25:243
7604994619,3cyclictest41-21ksoftirqd/322:05:263
7604994616,4cyclictest41-21ksoftirqd/323:05:173
7604994613,4cyclictest41-21ksoftirqd/323:25:163
760399461,7cyclictest33-21ksoftirqd/200:15:202
7603994613,9cyclictest33-21ksoftirqd/200:39:012
760499452,5cyclictest121rcu_preempt19:20:003
7604994517,3cyclictest41-21ksoftirqd/321:15:253
7604994513,4cyclictest41-21ksoftirqd/321:45:193
7604994511,8cyclictest41-21ksoftirqd/323:40:223
7604994510,7cyclictest41-21ksoftirqd/300:05:003
760399456,6cyclictest121rcu_preempt20:25:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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