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2026-07-09 - 12:32
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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 rackdslot3.osadl.org (updated Thu Jul 09, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491209175,23phc2sys0-21swapper/319:06:593
222342205172,22sleep20-21swapper/219:09:112
220532204170,23sleep10-21swapper/119:06:501
222892203170,22sleep00-21swapper/019:09:540
222972163125,13sleep20-21swapper/219:10:002
96622680,2sleep10-21swapper/123:10:191
22592996830,5cyclictest41-21ksoftirqd/322:00:243
22592996328,7cyclictest41-21ksoftirqd/321:35:013
22592996120,8cyclictest41-21ksoftirqd/321:50:213
22592996025,10cyclictest41-21ksoftirqd/319:10:133
22592996024,9cyclictest41-21ksoftirqd/319:45:003
22592995929,4cyclictest41-21ksoftirqd/320:00:213
22592995928,8cyclictest41-21ksoftirqd/320:40:123
22592995928,4cyclictest41-21ksoftirqd/321:10:213
22592995927,3cyclictest41-21ksoftirqd/322:25:003
22592995926,8cyclictest41-21ksoftirqd/323:45:183
22592995926,8cyclictest41-21ksoftirqd/319:20:193
22592995925,8cyclictest41-21ksoftirqd/323:54:593
22592995925,4cyclictest41-21ksoftirqd/323:25:003
22592995830,4cyclictest41-21ksoftirqd/320:55:203
22592995827,8cyclictest41-21ksoftirqd/322:00:003
22592995826,7cyclictest41-21ksoftirqd/323:55:133
22592995826,4cyclictest41-21ksoftirqd/319:25:173
22592995824,4cyclictest41-21ksoftirqd/322:10:013
22592995821,4cyclictest41-21ksoftirqd/300:05:003
22592995821,10cyclictest41-21ksoftirqd/323:10:253
22592995726,8cyclictest41-21ksoftirqd/323:30:003
22592995724,9cyclictest41-21ksoftirqd/320:30:173
22592995723,7cyclictest41-21ksoftirqd/323:05:243
22592995720,8cyclictest41-21ksoftirqd/319:15:173
22592995628,3cyclictest41-21ksoftirqd/322:40:253
22592995626,7cyclictest41-21ksoftirqd/321:25:013
22592995625,7cyclictest41-21ksoftirqd/320:15:143
22592995624,4cyclictest41-21ksoftirqd/322:35:003
22592995623,8cyclictest41-21ksoftirqd/320:10:133
22592995623,6cyclictest41-21ksoftirqd/321:00:133
22592995622,3cyclictest41-21ksoftirqd/321:09:593
22592995526,6cyclictest41-21ksoftirqd/300:20:273
22592995518,3cyclictest41-21ksoftirqd/319:35:203
22589995518,5cyclictest9-21ksoftirqd/023:05:000
22592995427,4cyclictest41-21ksoftirqd/322:39:133
22592995425,4cyclictest41-21ksoftirqd/322:49:503
22592995424,7cyclictest41-21ksoftirqd/323:30:263
22592995423,3cyclictest41-21ksoftirqd/319:34:593
22592995422,3cyclictest41-21ksoftirqd/320:55:013
22592995420,7cyclictest41-21ksoftirqd/300:25:143
2259299536,4cyclictest41-21ksoftirqd/300:30:163
22592995328,4cyclictest41-21ksoftirqd/300:10:173
22592995327,6cyclictest41-21ksoftirqd/322:15:183
22592995323,8cyclictest41-21ksoftirqd/321:45:213
22592995321,9cyclictest41-21ksoftirqd/323:40:213
22592995321,8cyclictest41-21ksoftirqd/300:15:143
22592995321,8cyclictest41-21ksoftirqd/300:15:133
22592995321,7cyclictest41-21ksoftirqd/320:00:013
22592995321,6cyclictest41-21ksoftirqd/323:00:013
22592995321,5cyclictest41-21ksoftirqd/321:40:003
22592995320,8cyclictest41-21ksoftirqd/320:05:193
22592995317,8cyclictest41-21ksoftirqd/322:25:233
50652520,2sleep00-21swapper/021:55:020
22592995226,3cyclictest41-21ksoftirqd/321:18:403
22592995226,3cyclictest41-21ksoftirqd/321:18:393
22592995218,7cyclictest41-21ksoftirqd/320:40:003
130062520,3sleep113010-21latency_hist21:04:591
22592995122,4cyclictest41-21ksoftirqd/320:45:303
22592995119,9cyclictest41-21ksoftirqd/323:35:183
22592995117,10cyclictest41-21ksoftirqd/320:20:213
149572510,4sleep2321ktimersoftd/222:15:122
2259299503,2cyclictest121rcu_preempt20:30:013
22592995026,4cyclictest41-21ksoftirqd/300:05:263
2259299502,4cyclictest41-21ksoftirqd/323:00:013
22592995017,4cyclictest41-21ksoftirqd/323:15:203
22592995015,8cyclictest41-21ksoftirqd/319:50:133
2259299493,7cyclictest41-21ksoftirqd/300:40:003
22592994918,9cyclictest41-21ksoftirqd/321:25:203
2259299485,7cyclictest41-21ksoftirqd/319:45:143
22592994817,7cyclictest41-21ksoftirqd/321:40:133
22592994812,5cyclictest41-21ksoftirqd/322:52:043
22592994714,7cyclictest41-21ksoftirqd/322:10:123
2258999458,5cyclictest9-21ksoftirqd/000:10:170
22589994539,3cyclictest30149-21fschecks_count19:25:140
22589994327,5cyclictest9-21ksoftirqd/023:15:000
22591994237,3cyclictest33-21ksoftirqd/223:40:002
22590994236,3cyclictest6658-21ls19:44:591
22589994212,7cyclictest9-21ksoftirqd/021:30:160
22591994125,8cyclictest33-21ksoftirqd/223:05:002
2258999415,3cyclictest121rcu_preempt22:35:250
2258999414,2cyclictest121rcu_preempt23:25:110
2258999414,2cyclictest121rcu_preempt22:40:140
22589994112,4cyclictest9-21ksoftirqd/019:35:230
22589994110,4cyclictest9-21ksoftirqd/000:25:190
22591994021,17cyclictest33-21ksoftirqd/220:30:012
22590994036,2cyclictest25-21ksoftirqd/119:20:011
2258999406,2cyclictest121rcu_preempt23:50:240
2258999405,3cyclictest121rcu_preempt20:20:190
2258999405,2cyclictest121rcu_preempt22:05:250
2258999405,2cyclictest121rcu_preempt20:40:250
2258999404,3cyclictest121rcu_preempt19:10:150
2258999404,2cyclictest121rcu_preempt21:45:190
2258999403,4cyclictest9-21ksoftirqd/022:20:120
22591993928,9cyclictest33-21ksoftirqd/219:55:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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