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2025-12-08 - 00:11
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Sun Dec 07, 2025 12:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3270243997455,19cyclictest0-21swapper/307:30:263
3270243996628,19cyclictest362-21jbd2/sda2-808:13:193
3270243996022,0cyclictest191rcu_preempt11:00:173
327024399580,39cyclictest3279956-21gltestperf07:25:163
3270247995613,19cyclictest0-21swapper/711:25:197
3270228995414,39cyclictest0-21swapper/010:40:160
3270247995213,39cyclictest0-21swapper/707:55:177
327024799506,39cyclictest0-21swapper/710:40:177
327022899499,39cyclictest0-21swapper/010:35:180
327022899498,39cyclictest3264599-21kworker/0:2+ice08:45:160
3270244994810,38cyclictest0-21swapper/411:55:154
3270235994847,1cyclictest191rcu_preempt07:35:171
327024799479,19cyclictest0-21swapper/709:25:187
3270245994729,18cyclictest0-21swapper/510:02:385
327024399479,19cyclictest0-21swapper/307:35:173
327024799467,20cyclictest0-21swapper/708:55:167
327024799467,20cyclictest0-21swapper/708:55:167
327024799463,19cyclictest0-21swapper/708:50:187
327024799463,19cyclictest0-21swapper/708:50:187
327022899446,19cyclictest0-21swapper/011:50:190
327022899445,39cyclictest0-21swapper/008:15:170
327024799435,19cyclictest0-21swapper/709:55:187
3270243994223,19cyclictest0-21swapper/312:35:163
3270243994223,19cyclictest0-21swapper/311:15:173
3270241994242,0cyclictest0-21swapper/211:33:162
3270247994022,18cyclictest3270224-21cyclictest12:20:157
327024799400,1cyclictest0-21swapper/709:15:167
3270245993936,1cyclictest1089-21snmpd08:20:565
3270245993920,1cyclictest691ktimers/510:28:555
327022899390,38cyclictest0-21swapper/011:10:250
327024799380,19cyclictest0-21swapper/707:35:177
327024799370,18cyclictest0-21swapper/711:30:187
3270245993617,19cyclictest691ktimers/507:24:155
3270245993617,19cyclictest0-21swapper/511:00:595
3270243993617,19cyclictest0-21swapper/307:20:173
327024399360,36cyclictest0-21swapper/309:30:193
3270228993617,19cyclictest0-21swapper/008:20:210
327022899360,35cyclictest0-21swapper/011:05:170
327022899360,17cyclictest0-21swapper/010:25:230
327024799350,15cyclictest0-21swapper/708:05:157
327024799350,15cyclictest0-21swapper/707:50:217
3270235993534,1cyclictest911908-21kworker/1:2+events08:20:571
327022899350,15cyclictest0-21swapper/009:00:160
327022899350,15cyclictest0-21swapper/009:00:160
3270247993414,19cyclictest0-21swapper/712:05:177
327024799340,34cyclictest0-21swapper/711:00:167
327024799340,34cyclictest0-21swapper/707:10:177
3270243993416,0cyclictest0-21swapper/307:10:173
3270243993415,19cyclictest0-21swapper/308:20:213
3270228993415,19cyclictest0-21swapper/012:15:180
3270228993414,19cyclictest0-21swapper/009:15:160
327022899340,14cyclictest0-21swapper/008:40:180
3270247993314,19cyclictest0-21swapper/711:45:227
3270247993314,19cyclictest0-21swapper/711:05:257
3270247993314,19cyclictest0-21swapper/710:05:197
3270247993314,19cyclictest0-21swapper/709:45:197
3270247993314,19cyclictest0-21swapper/708:20:217
3270244993314,19cyclictest0-21swapper/409:50:164
3270244993314,19cyclictest0-21swapper/409:00:164
3270244993314,19cyclictest0-21swapper/409:00:154
3270244993314,19cyclictest0-21swapper/407:40:154
3270243993314,19cyclictest0-21swapper/312:15:183
3270243993314,19cyclictest0-21swapper/310:40:163
3270243993314,19cyclictest0-21swapper/307:50:213
3270243993314,0cyclictest0-21swapper/308:25:203
327024399330,14cyclictest0-21swapper/310:05:193
3270228993314,19cyclictest0-21swapper/011:40:160
3270228993314,19cyclictest0-21swapper/010:45:170
3270228993314,19cyclictest0-21swapper/010:30:210
3270228993314,19cyclictest0-21swapper/010:05:190
3270228993314,19cyclictest0-21swapper/009:05:570
3270228993313,19cyclictest0-21swapper/011:00:170
3270228993312,20cyclictest0-21swapper/007:20:170
3270247993213,19cyclictest0-21swapper/710:50:247
3270247993213,19cyclictest0-21swapper/710:00:187
3270247993213,19cyclictest0-21swapper/709:30:187
3270247993213,19cyclictest0-21swapper/707:25:177
3270244993213,19cyclictest0-21swapper/412:20:154
3270244993213,19cyclictest0-21swapper/410:30:214
3270244993213,19cyclictest0-21swapper/408:42:174
3270243993214,18cyclictest0-21swapper/308:30:153
3270243993213,19cyclictest0-21swapper/312:22:523
3270243993213,19cyclictest0-21swapper/310:55:193
3270228993213,19cyclictest0-21swapper/009:45:190
3270228993213,19cyclictest0-21swapper/009:30:200
3270228993212,19cyclictest0-21swapper/009:50:170
3270228993210,22cyclictest0-21swapper/010:10:160
3270247993113,18cyclictest0-21swapper/712:30:157
3270244993113,18cyclictest0-21swapper/407:30:254
3270244993112,19cyclictest0-21swapper/408:00:174
3270243993112,19cyclictest0-21swapper/310:20:183
3270243993112,19cyclictest0-21swapper/308:55:223
3270243993112,19cyclictest0-21swapper/308:55:213
327022899318,19cyclictest0-21swapper/007:40:170
3270228993113,18cyclictest873-21mta-sts-daemon07:35:170
3270228993113,18cyclictest171ktimers/011:15:170
3270228993111,20cyclictest0-21swapper/008:35:170
3270247993011,19cyclictest0-21swapper/712:00:197
3270247993011,19cyclictest0-21swapper/710:25:237
3270247993011,19cyclictest0-21swapper/710:15:157
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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