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2026-06-18 - 07:08
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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 Thu Jun 18, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591211164,36phc2sys0-21swapper/319:09:593
211722204170,23sleep10-21swapper/119:05:071
232362203169,22sleep00-21swapper/019:07:550
232952201169,21sleep20-21swapper/219:08:422
1429421760,6sleep22369099cyclictest19:55:182
1429421760,6sleep22369099cyclictest19:55:182
2886321620,7sleep02368899cyclictest19:20:140
2666121310,7sleep32369199cyclictest23:35:153
225522620,2sleep10-21swapper/120:10:261
23691996129,7cyclictest41-21ksoftirqd/320:05:123
299632600,7sleep02368899cyclictest23:40:210
23691996032,7cyclictest41-21ksoftirqd/322:00:253
23691996025,5cyclictest41-21ksoftirqd/300:25:173
23691995930,7cyclictest41-21ksoftirqd/320:10:153
23691995929,4cyclictest41-21ksoftirqd/322:20:273
23691995928,9cyclictest41-21ksoftirqd/323:15:153
23691995729,7cyclictest41-21ksoftirqd/321:35:003
23691995715,4cyclictest41-21ksoftirqd/320:43:533
23691995630,6cyclictest41-21ksoftirqd/323:05:223
23691995625,8cyclictest41-21ksoftirqd/319:45:123
23691995623,3cyclictest41-21ksoftirqd/322:50:203
23691995523,8cyclictest41-21ksoftirqd/322:25:153
23691995515,4cyclictest41-21ksoftirqd/322:55:553
23691995514,4cyclictest41-21ksoftirqd/300:17:393
23691995514,4cyclictest41-21ksoftirqd/300:17:393
23691995513,4cyclictest41-21ksoftirqd/323:04:383
164082550,2sleep00-21swapper/000:20:130
138491550,1ptp4l401ktimersoftd/319:50:213
261922540,1sleep30-21swapper/322:30:133
23691995425,7cyclictest41-21ksoftirqd/323:10:133
23691995423,4cyclictest41-21ksoftirqd/322:10:153
23691995422,7cyclictest41-21ksoftirqd/320:00:243
23691995421,6cyclictest41-21ksoftirqd/321:20:223
23691995421,4cyclictest41-21ksoftirqd/321:30:223
23691995419,7cyclictest41-21ksoftirqd/321:05:213
23691995418,8cyclictest41-21ksoftirqd/319:20:273
23691995414,10cyclictest41-21ksoftirqd/300:35:173
23691995322,3cyclictest41-21ksoftirqd/319:12:333
23691995321,7cyclictest41-21ksoftirqd/320:45:133
23691995314,4cyclictest41-21ksoftirqd/320:39:383
23691995222,5cyclictest41-21ksoftirqd/321:45:573
23691995220,6cyclictest41-21ksoftirqd/319:30:213
23691995220,3cyclictest41-21ksoftirqd/323:30:173
23691995216,9cyclictest41-21ksoftirqd/300:05:153
23691995214,4cyclictest41-21ksoftirqd/320:55:323
23691995213,3cyclictest41-21ksoftirqd/319:55:263
23691995213,3cyclictest41-21ksoftirqd/319:55:263
2369199517,3cyclictest41-21ksoftirqd/320:50:203
23691995119,7cyclictest41-21ksoftirqd/322:40:243
23691995119,4cyclictest41-21ksoftirqd/321:15:223
23691995115,4cyclictest41-21ksoftirqd/319:35:223
23691995114,8cyclictest41-21ksoftirqd/322:35:183
23691995114,4cyclictest41-21ksoftirqd/321:52:493
23691995113,10cyclictest41-21ksoftirqd/319:27:013
263872500,2sleep20-21swapper/220:20:132
23691995019,4cyclictest41-21ksoftirqd/300:30:153
23691995018,5cyclictest41-21ksoftirqd/321:25:263
23691995015,4cyclictest41-21ksoftirqd/321:35:233
23691995014,4cyclictest41-21ksoftirqd/321:44:183
23691995014,10cyclictest41-21ksoftirqd/320:31:253
23691995013,3cyclictest41-21ksoftirqd/319:16:193
23691995012,5cyclictest41-21ksoftirqd/320:17:013
23691995012,10cyclictest41-21ksoftirqd/322:45:073
23691994918,4cyclictest41-21ksoftirqd/319:40:213
23691994916,4cyclictest41-21ksoftirqd/323:45:253
23691994916,4cyclictest41-21ksoftirqd/323:45:253
23691994822,3cyclictest41-21ksoftirqd/323:25:003
23691994817,7cyclictest41-21ksoftirqd/321:55:253
23691994815,7cyclictest41-21ksoftirqd/300:00:203
23691994813,6cyclictest41-21ksoftirqd/322:15:163
23691994721,10cyclictest41-21ksoftirqd/320:20:203
23691994711,7cyclictest41-21ksoftirqd/300:10:163
23691994710,4cyclictest41-21ksoftirqd/320:26:363
2369099479,36cyclictest0-21swapper/200:04:252
2368899477,5cyclictest9-21ksoftirqd/023:10:190
2369199465,2cyclictest41-21ksoftirqd/323:55:183
2369199463,2cyclictest121rcu_preempt23:25:163
23691994632,4cyclictest41-21ksoftirqd/321:10:273
23691994614,4cyclictest41-21ksoftirqd/300:20:593
23690994631,11cyclictest33-21ksoftirqd/223:50:582
2369199454,5cyclictest41-21ksoftirqd/323:50:173
23691994531,6cyclictest41-21ksoftirqd/321:05:013
23691994531,6cyclictest41-21ksoftirqd/321:05:003
2368999450,43cyclictest0-21swapper/100:05:231
2369199445,5cyclictest41-21ksoftirqd/322:05:133
2369199444,2cyclictest41-21ksoftirqd/323:40:233
23688994337,3cyclictest9-21ksoftirqd/019:40:010
2368899418,5cyclictest9-21ksoftirqd/023:09:590
23690994035,3cyclictest30300-21sshd22:36:052
23688994034,3cyclictest9-21ksoftirqd/023:50:000
23688994034,3cyclictest9-21ksoftirqd/023:50:000
23688994034,3cyclictest9-21ksoftirqd/021:25:260
23688994014,4cyclictest9-21ksoftirqd/020:15:220
23690993926,10cyclictest33-21ksoftirqd/220:08:592
23690993910,27cyclictest0-21swapper/221:15:422
2368899394,3cyclictest121rcu_preempt22:25:220
23688993934,3cyclictest9-21ksoftirqd/020:30:000
23689993832,4cyclictest25-21ksoftirqd/122:16:181
2368999380,36cyclictest0-21swapper/120:40:321
2368999380,2cyclictest0-21swapper/121:20:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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