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2026-04-17 - 14:16
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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 17, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219072204170,22sleep10-21swapper/119:06:561
220022203169,22sleep30-21swapper/319:07:463
219882201169,21sleep20-21swapper/219:07:452
219062198164,22sleep00-21swapper/019:06:550
1266721470,6sleep22259699cyclictest23:50:222
10952820,2sleep21090-21grep19:19:292
106292810,3sleep30-21swapper/319:17:363
149992770,5sleep215012-21tee19:21:502
208922690,6sleep0101ktimersoftd/019:14:010
271622650,5sleep127160-21od19:18:511
284082640,7sleep02259499cyclictest19:22:550
22597996229,9cyclictest41-21ksoftirqd/319:22:013
259932600,2sleep10-21swapper/119:22:511
175582580,2sleep30-21swapper/319:40:193
22597995725,3cyclictest41-21ksoftirqd/320:20:123
91832560,4sleep0101ktimersoftd/022:40:120
315762560,2sleep20-21swapper/220:10:102
22597995627,8cyclictest41-21ksoftirqd/319:13:103
22597995426,3cyclictest41-21ksoftirqd/300:30:163
22597995425,7cyclictest41-21ksoftirqd/320:00:243
22597995423,4cyclictest41-21ksoftirqd/322:40:213
138491540,0ptp4l401ktimersoftd/322:16:413
22597995317,5cyclictest41-21ksoftirqd/322:25:003
76382490,2sleep20-21swapper/222:35:212
2259799497,4cyclictest41-21ksoftirqd/321:28:143
22597994921,6cyclictest41-21ksoftirqd/323:05:003
22597994919,3cyclictest41-21ksoftirqd/322:00:263
22597994918,3cyclictest41-21ksoftirqd/322:35:143
22597994917,4cyclictest41-21ksoftirqd/322:30:193
22597994916,4cyclictest41-21ksoftirqd/320:45:143
22597994823,6cyclictest41-21ksoftirqd/300:05:143
22597994816,7cyclictest41-21ksoftirqd/323:25:003
22597994814,9cyclictest41-21ksoftirqd/321:10:003
2259799479,4cyclictest41-21ksoftirqd/319:29:483
22597994719,4cyclictest41-21ksoftirqd/322:10:273
22597994718,4cyclictest41-21ksoftirqd/323:40:163
22597994716,4cyclictest41-21ksoftirqd/321:30:263
22597994716,4cyclictest41-21ksoftirqd/320:10:193
2259799468,5cyclictest41-21ksoftirqd/320:59:293
22597994640,3cyclictest41-21ksoftirqd/323:20:003
22597994628,16cyclictest41-21ksoftirqd/320:35:003
22597994621,7cyclictest41-21ksoftirqd/300:20:153
22597994614,4cyclictest41-21ksoftirqd/322:25:153
2259799458,4cyclictest41-21ksoftirqd/323:59:573
22597994518,7cyclictest41-21ksoftirqd/321:55:253
22597994517,3cyclictest41-21ksoftirqd/321:55:003
22597994512,3cyclictest41-21ksoftirqd/300:15:273
2259799447,4cyclictest41-21ksoftirqd/321:37:483
2259799447,4cyclictest41-21ksoftirqd/320:44:253
2259799447,4cyclictest41-21ksoftirqd/320:15:043
2259799446,4cyclictest41-21ksoftirqd/323:53:593
22597994424,17cyclictest41-21ksoftirqd/300:15:013
22597994417,6cyclictest41-21ksoftirqd/300:35:133
22597994413,4cyclictest41-21ksoftirqd/300:00:103
22597994412,10cyclictest41-21ksoftirqd/321:15:253
22597994411,9cyclictest41-21ksoftirqd/323:35:193
22597994411,9cyclictest41-21ksoftirqd/323:35:183
22597994411,4cyclictest41-21ksoftirqd/319:55:123
22597994410,7cyclictest41-21ksoftirqd/323:30:223
138491440,0ptp4l401ktimersoftd/322:52:233
2259799436,4cyclictest41-21ksoftirqd/322:46:283
2259799434,4cyclictest41-21ksoftirqd/323:08:263
2259799431,9cyclictest41-21ksoftirqd/319:30:133
22597994315,10cyclictest41-21ksoftirqd/319:50:133
22597994314,7cyclictest41-21ksoftirqd/320:35:243
138491430,0ptp4l401ktimersoftd/319:46:223
2259799427,4cyclictest41-21ksoftirqd/323:47:053
2259799426,4cyclictest41-21ksoftirqd/321:00:213
22597994211,3cyclictest41-21ksoftirqd/300:25:153
22595994237,3cyclictest25-21ksoftirqd/123:40:001
22595994237,3cyclictest25-21ksoftirqd/123:40:001
2259799413,2cyclictest41-21ksoftirqd/321:14:593
2259799410,3cyclictest41-21ksoftirqd/321:20:163
2259799409,7cyclictest41-21ksoftirqd/320:50:143
2259799409,7cyclictest41-21ksoftirqd/320:50:143
2259799405,4cyclictest41-21ksoftirqd/322:05:243
22596994034,3cyclictest33-21ksoftirqd/222:20:012
22597993934,3cyclictest41-21ksoftirqd/321:50:003
22597993934,3cyclictest41-21ksoftirqd/320:05:133
22597993934,3cyclictest41-21ksoftirqd/319:40:013
22596993933,3cyclictest33-21ksoftirqd/219:50:012
22596993932,5cyclictest33-21ksoftirqd/223:35:582
22596993932,5cyclictest33-21ksoftirqd/223:35:582
22595993933,3cyclictest25-21ksoftirqd/120:34:591
22595993931,5cyclictest25-21ksoftirqd/122:17:001
22594993929,7cyclictest9-21ksoftirqd/019:19:230
138491390,0ptp4l401ktimersoftd/320:25:103
2259799385,7cyclictest41-21ksoftirqd/323:10:153
22597993824,3cyclictest41-21ksoftirqd/321:40:203
22596993834,2cyclictest33-21ksoftirqd/221:19:592
22596993833,3cyclictest33-21ksoftirqd/220:40:002
22595993833,3cyclictest25-21ksoftirqd/121:50:001
22595993832,4cyclictest28977-21cron00:25:001
22595993832,3cyclictest25-21ksoftirqd/119:10:111
22595993831,4cyclictest25-21ksoftirqd/121:31:171
2259799376,7cyclictest41-21ksoftirqd/323:25:223
22597993731,4cyclictest41-21ksoftirqd/322:55:483
22596993731,4cyclictest33-21ksoftirqd/222:08:212
22596993731,3cyclictest33-21ksoftirqd/219:14:162
22596993731,3cyclictest223-21systemd-journal19:40:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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