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2026-06-02 - 05:53
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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 50 highest latencies:
System rackcslot0.osadl.org (updated Tue Jun 02, 2026 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
598321390,3sleep152855499cyclictest23:44:467
2209321390,4sleep102854599cyclictest00:41:552
1987921320,0sleep60-21swapper/623:10:5512
1666421300,6sleep72854299cyclictest00:37:5113
278672122104,11sleep60-21swapper/619:09:4312
278672122104,11sleep60-21swapper/619:09:4312
2213921210,2sleep341-21ksoftirqd/321:35:399
246572120104,11sleep70-21swapper/719:07:3513
246572120104,11sleep70-21swapper/719:07:3513
2794121170,2sleep80-21swapper/822:17:4314
27806210890,10sleep90-21swapper/919:08:5715
27806210890,10sleep90-21swapper/919:08:5715
500621060,2sleep12114-21ksoftirqd/1222:43:444
28121210692,10sleep110-21swapper/1119:12:283
28121210692,10sleep110-21swapper/1119:12:283
1025121060,1sleep40-21swapper/421:31:3910
28077210590,9sleep80-21swapper/819:11:5314
28077210590,9sleep80-21swapper/819:11:5314
27878210489,11sleep00-21swapper/019:09:530
27878210489,11sleep00-21swapper/019:09:530
27812210290,8sleep130-21swapper/1319:09:015
27812210290,8sleep130-21swapper/1319:09:015
310921000,1sleep150-21swapper/1522:15:107
237372980,1sleep60-21swapper/600:19:2312
237372980,1sleep60-21swapper/600:19:2312
168682980,5sleep132854999cyclictest23:13:425
118482970,1sleep130-21swapper/1323:03:485
325592950,1sleep10-21swapper/121:21:261
209212940,1sleep10-21swapper/100:08:361
262452930,1sleep80-21swapper/822:36:2714
114462930,2sleep152855499cyclictest22:47:487
4082910,1sleep140-21swapper/1400:03:126
174022910,5sleep82854399cyclictest22:22:4814
31492900,1sleep113145-21run-parts23:44:263
132762900,1sleep60-21swapper/623:13:1912
12082900,5sleep22853599cyclictest00:13:588
12082900,5sleep22853599cyclictest00:13:588
2784228981,4sleep30-21swapper/319:09:249
2784228981,4sleep30-21swapper/319:09:249
164402890,0sleep150-21swapper/1523:23:227
2775728874,10sleep140-21swapper/1419:08:146
2775728874,10sleep140-21swapper/1419:08:146
27282870,5sleep142855399cyclictest21:36:546
16432870,6sleep92854499cyclictest21:21:3415
306232860,0sleep130-21swapper/1322:52:515
270292860,1sleep122395-21sshd22:39:274
2806728578,3sleep150-21swapper/1519:11:447
2806728578,3sleep150-21swapper/1519:11:447
2778328572,7sleep50-21swapper/519:08:3711
2778328572,7sleep50-21swapper/519:08:3711
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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