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2026-05-05 - 08:35
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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 rackdslot1.osadl.org (updated Tue May 05, 2026 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16452996932,10cyclictest33-21ksoftirqd/222:00:002
16452996829,8cyclictest33-21ksoftirqd/221:06:212
16452996733,5cyclictest33-21ksoftirqd/200:39:592
16452996732,9cyclictest33-21ksoftirqd/220:20:012
16452996729,8cyclictest33-21ksoftirqd/219:14:212
16452996630,8cyclictest33-21ksoftirqd/220:02:192
16452996626,8cyclictest33-21ksoftirqd/200:02:002
16452996532,9cyclictest33-21ksoftirqd/219:20:222
16452996526,8cyclictest33-21ksoftirqd/223:52:062
16452996526,8cyclictest33-21ksoftirqd/220:36:372
1645299652,34cyclictest0-21swapper/220:30:142
1645299652,33cyclictest0-21swapper/222:25:292
1645299643,35cyclictest0-21swapper/222:21:592
16452996432,6cyclictest33-21ksoftirqd/222:45:132
16452996430,4cyclictest33-21ksoftirqd/223:55:242
16452996426,8cyclictest33-21ksoftirqd/200:18:212
1645299642,34cyclictest0-21swapper/200:30:192
16452996329,9cyclictest33-21ksoftirqd/223:35:182
16452996327,3cyclictest33-21ksoftirqd/222:15:182
16452996325,8cyclictest33-21ksoftirqd/220:07:132
1645299632,33cyclictest0-21swapper/223:22:122
313942620,5sleep20-21swapper/220:50:182
16452996231,5cyclictest33-21ksoftirqd/219:30:182
16452996230,9cyclictest33-21ksoftirqd/223:05:292
16452996227,6cyclictest33-21ksoftirqd/200:10:142
16452996225,7cyclictest33-21ksoftirqd/221:33:212
16452996224,7cyclictest33-21ksoftirqd/223:30:482
1645299622,35cyclictest0-21swapper/221:15:182
1645299622,31cyclictest0-21swapper/222:50:152
16452996223,13cyclictest33-21ksoftirqd/222:44:422
16452996129,5cyclictest33-21ksoftirqd/219:35:142
16452996128,5cyclictest33-21ksoftirqd/223:25:172
16452996128,10cyclictest33-21ksoftirqd/223:10:252
16452996126,5cyclictest33-21ksoftirqd/222:35:002
16452996126,5cyclictest33-21ksoftirqd/222:35:002
134491610,4ptp4l0-21swapper/222:10:082
16452996033,7cyclictest33-21ksoftirqd/222:40:012
16452996028,9cyclictest33-21ksoftirqd/219:40:202
16452996026,6cyclictest33-21ksoftirqd/223:15:182
16452996026,5cyclictest33-21ksoftirqd/222:00:282
16452996024,12cyclictest33-21ksoftirqd/220:13:392
16452996023,7cyclictest33-21ksoftirqd/221:41:112
16452995929,6cyclictest33-21ksoftirqd/223:45:232
16452995927,6cyclictest33-21ksoftirqd/221:50:152
134491590,3ptp4l12846-21df21:20:150
16452995828,5cyclictest33-21ksoftirqd/221:45:222
16452995823,5cyclictest33-21ksoftirqd/219:45:182
16452995722,5cyclictest33-21ksoftirqd/223:00:272
134491570,4ptp4l0-21swapper/121:17:291
134491570,3ptp4l41-21ksoftirqd/321:50:173
134491570,3ptp4l0-21swapper/100:05:491
16452995626,4cyclictest33-21ksoftirqd/221:11:112
16452995623,5cyclictest33-21ksoftirqd/221:00:192
134491560,3ptp4l503-21ls00:20:171
134491560,3ptp4l0-21swapper/100:15:151
16452995528,6cyclictest33-21ksoftirqd/220:55:162
16452995528,6cyclictest33-21ksoftirqd/220:55:162
16452995524,3cyclictest33-21ksoftirqd/220:45:272
134491550,5ptp4l0-21swapper/119:08:301
134491550,5ptp4l0-21swapper/000:15:330
134491550,3ptp4l0-21swapper/319:12:343
134491550,3ptp4l0-21swapper/020:05:280
134491550,3ptp4l0-21swapper/019:20:250
16452995422,5cyclictest33-21ksoftirqd/220:40:182
134491540,3ptp4l21826-21sshd23:56:221
134491540,3ptp4l0-21swapper/022:30:150
134491540,3ptp4l0-21swapper/022:30:150
1645299532,6cyclictest33-21ksoftirqd/223:00:012
16452995323,4cyclictest33-21ksoftirqd/221:20:162
16452995321,3cyclictest33-21ksoftirqd/221:38:042
134491530,5ptp4l0-21swapper/120:05:121
134491530,3ptp4l0-21swapper/123:53:441
82602520,3sleep00-21swapper/022:20:140
192762520,4sleep10-21swapper/119:15:171
1645299523,6cyclictest33-21ksoftirqd/220:00:002
16452995220,8cyclictest33-21ksoftirqd/200:05:312
16452995215,10cyclictest33-21ksoftirqd/200:20:092
134491520,4ptp4l1645399cyclictest21:55:153
134491520,4ptp4l0-21swapper/122:36:191
134491520,4ptp4l0-21swapper/020:49:370
1645299517,3cyclictest33-21ksoftirqd/219:25:192
1645299515,5cyclictest33-21ksoftirqd/200:25:152
1645299512,5cyclictest33-21ksoftirqd/223:40:152
1645299511,11cyclictest33-21ksoftirqd/221:25:162
134491510,3ptp4l0-21swapper/122:20:591
134491510,3ptp4l0-21swapper/122:05:231
1645299505,3cyclictest33-21ksoftirqd/220:20:152
134491500,5ptp4l0-21swapper/020:14:540
134491500,4ptp4l0-21swapper/120:52:131
134491500,4ptp4l0-21swapper/022:46:350
134491500,4ptp4l0-21swapper/021:26:470
16452994939,3cyclictest33-21ksoftirqd/219:50:252
134491490,7ptp4l41-21ksoftirqd/323:10:143
134491490,5ptp4l0-21swapper/219:05:302
134491490,4ptp4l0-21swapper/119:57:251
134491490,4ptp4l0-21swapper/100:02:501
134491490,3ptp4l0-21swapper/121:30:001
1645299483,6cyclictest33-21ksoftirqd/220:25:152
134491480,4ptp4l0-21swapper/319:05:463
134491480,4ptp4l0-21swapper/121:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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