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2026-04-26 - 14:23
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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 Sun Apr 26, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206159,36phc2sys0-21swapper/319:05:583
93932203171,21sleep10-21swapper/119:08:011
93012203169,22sleep00-21swapper/019:06:570
93032199167,21sleep20-21swapper/219:06:582
138591160122,14phc2sys0-21swapper/319:10:023
138591160122,14phc2sys0-21swapper/319:10:013
2627421540,6sleep1984099cyclictest21:50:281
538821480,3sleep2984199cyclictest20:05:182
9842996430,6cyclictest41-21ksoftirqd/319:20:003
9842996231,5cyclictest41-21ksoftirqd/300:20:003
9842996229,3cyclictest41-21ksoftirqd/320:45:133
9842996131,3cyclictest41-21ksoftirqd/322:20:173
9841996126,14cyclictest33-21ksoftirqd/221:55:262
9842996029,4cyclictest41-21ksoftirqd/321:25:223
9842996029,4cyclictest41-21ksoftirqd/321:25:223
9841996024,8cyclictest33-21ksoftirqd/222:10:272
9841995928,6cyclictest33-21ksoftirqd/221:00:142
9841995927,9cyclictest33-21ksoftirqd/223:45:002
9841995925,7cyclictest33-21ksoftirqd/222:45:212
9842995826,4cyclictest41-21ksoftirqd/300:20:273
9842995824,4cyclictest41-21ksoftirqd/322:40:193
9839995820,8cyclictest9-21ksoftirqd/022:05:200
9842995624,4cyclictest41-21ksoftirqd/319:30:263
9841995628,3cyclictest33-21ksoftirqd/200:10:252
9841995627,3cyclictest33-21ksoftirqd/222:40:212
9841995625,6cyclictest33-21ksoftirqd/219:35:002
9839995617,5cyclictest9-21ksoftirqd/021:35:180
9842995525,3cyclictest41-21ksoftirqd/319:57:353
9842995513,4cyclictest41-21ksoftirqd/322:35:133
9842995425,4cyclictest41-21ksoftirqd/320:55:013
9842995414,8cyclictest41-21ksoftirqd/320:35:013
9842995412,5cyclictest41-21ksoftirqd/319:50:143
9841995426,3cyclictest33-21ksoftirqd/223:10:182
9841995421,7cyclictest33-21ksoftirqd/221:05:162
9839995422,7cyclictest9-21ksoftirqd/020:40:170
9839995411,7cyclictest9-21ksoftirqd/023:05:200
9842995324,8cyclictest41-21ksoftirqd/300:05:183
9842995323,4cyclictest41-21ksoftirqd/300:35:303
9842995316,10cyclictest41-21ksoftirqd/322:15:123
9841995332,9cyclictest33-21ksoftirqd/220:25:002
9841995324,8cyclictest33-21ksoftirqd/223:00:012
9841995323,3cyclictest33-21ksoftirqd/200:10:012
9841995319,8cyclictest33-21ksoftirqd/220:25:152
9841995319,8cyclictest33-21ksoftirqd/220:25:152
9839995320,10cyclictest9-21ksoftirqd/020:25:180
9839995320,10cyclictest9-21ksoftirqd/020:25:180
135191530,1getstats0-21swapper/321:35:543
9842995232,3cyclictest41-21ksoftirqd/322:05:003
9842995225,4cyclictest41-21ksoftirqd/323:45:183
9842995225,3cyclictest41-21ksoftirqd/322:30:243
9842995223,3cyclictest41-21ksoftirqd/321:22:073
9842995222,4cyclictest41-21ksoftirqd/322:13:133
9842995222,4cyclictest41-21ksoftirqd/321:40:223
9842995220,3cyclictest41-21ksoftirqd/323:05:273
9841995224,5cyclictest33-21ksoftirqd/220:45:142
9841995223,8cyclictest33-21ksoftirqd/223:20:262
9841995222,3cyclictest33-21ksoftirqd/221:30:292
9842995123,4cyclictest41-21ksoftirqd/322:55:183
9841995121,7cyclictest33-21ksoftirqd/223:50:212
9841995121,3cyclictest33-21ksoftirqd/220:00:152
9842995016,3cyclictest121rcu_preempt21:05:233
9841995023,3cyclictest33-21ksoftirqd/219:15:192
9841995016,7cyclictest33-21ksoftirqd/219:35:272
9841995015,3cyclictest33-21ksoftirqd/222:05:282
9839995016,6cyclictest9-21ksoftirqd/021:05:130
9842994922,3cyclictest41-21ksoftirqd/320:55:193
9842994920,4cyclictest41-21ksoftirqd/319:35:203
9841994920,3cyclictest33-21ksoftirqd/222:20:202
9841994918,8cyclictest33-21ksoftirqd/223:05:152
9841994918,4cyclictest33-21ksoftirqd/221:35:152
9839994920,8cyclictest9-21ksoftirqd/020:25:010
9842994843,3cyclictest26375-21idleruntime-cro00:05:013
9842994821,4cyclictest41-21ksoftirqd/321:45:143
984199486,4cyclictest33-21ksoftirqd/200:20:292
9841994825,13cyclictest33-21ksoftirqd/223:35:132
9841994819,4cyclictest33-21ksoftirqd/219:10:122
9841994819,4cyclictest33-21ksoftirqd/219:10:122
9841994818,3cyclictest33-21ksoftirqd/221:15:222
9841994815,3cyclictest33-21ksoftirqd/222:30:142
9841994815,3cyclictest33-21ksoftirqd/200:25:212
9841994814,7cyclictest33-21ksoftirqd/223:15:132
9839994820,4cyclictest9-21ksoftirqd/020:00:240
984299475,9cyclictest41-21ksoftirqd/320:35:183
9842994713,9cyclictest41-21ksoftirqd/321:50:193
984299470,2cyclictest121rcu_preempt22:45:233
9841994731,4cyclictest33-21ksoftirqd/219:20:212
9841994719,3cyclictest33-21ksoftirqd/222:20:002
9841994715,3cyclictest33-21ksoftirqd/222:00:262
9839994717,6cyclictest9-21ksoftirqd/022:35:010
293862470,2sleep30-21swapper/322:00:013
9842994621,3cyclictest41-21ksoftirqd/320:05:163
9842994610,11cyclictest41-21ksoftirqd/300:10:183
9841994620,3cyclictest33-21ksoftirqd/220:30:142
9841994617,4cyclictest33-21ksoftirqd/220:15:172
9841994616,9cyclictest33-21ksoftirqd/223:45:172
9841994614,4cyclictest33-21ksoftirqd/219:40:192
9839994625,9cyclictest9-21ksoftirqd/023:25:180
9839994616,3cyclictest9-21ksoftirqd/021:35:010
9839994615,8cyclictest9-21ksoftirqd/022:15:130
135191460,6getstats984299cyclictest21:15:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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