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2026-05-24 - 14:16
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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 all highest latencies:
System rackdslot4.osadl.org (updated Sun May 24, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314212226161,21sleep20-21swapper/219:06:162
138591206172,23phc2sys0-21swapper/319:08:363
294902204169,23sleep10-21swapper/119:05:021
315762201168,22sleep00-21swapper/019:08:100
743721580,6sleep23200999cyclictest22:40:132
387921570,7sleep33201099cyclictest20:22:303
50798980,80rtkit-daemon0-21swapper/119:10:001
32010996426,8cyclictest41-21ksoftirqd/321:40:003
32010996332,5cyclictest41-21ksoftirqd/323:10:163
32010996032,4cyclictest41-21ksoftirqd/321:20:263
32010995928,7cyclictest41-21ksoftirqd/321:50:003
32010995916,5cyclictest41-21ksoftirqd/320:18:523
32010995916,5cyclictest41-21ksoftirqd/320:18:523
32010995916,4cyclictest41-21ksoftirqd/321:58:453
32010995915,4cyclictest41-21ksoftirqd/322:36:003
32010995828,4cyclictest41-21ksoftirqd/322:05:193
32010995826,8cyclictest41-21ksoftirqd/300:15:283
32010995817,4cyclictest41-21ksoftirqd/323:34:493
32010995720,8cyclictest41-21ksoftirqd/321:40:123
32010995716,4cyclictest41-21ksoftirqd/320:57:163
32010995715,4cyclictest41-21ksoftirqd/322:31:143
32010995715,4cyclictest41-21ksoftirqd/319:22:563
32010995714,5cyclictest41-21ksoftirqd/321:32:133
32010995714,4cyclictest41-21ksoftirqd/319:11:403
32010995630,8cyclictest41-21ksoftirqd/322:20:233
32010995628,7cyclictest41-21ksoftirqd/320:50:233
32010995627,6cyclictest41-21ksoftirqd/323:25:253
32010995625,4cyclictest41-21ksoftirqd/300:05:243
32010995620,7cyclictest41-21ksoftirqd/300:30:163
32010995614,5cyclictest41-21ksoftirqd/319:28:533
32010995528,7cyclictest41-21ksoftirqd/320:10:133
32010995525,7cyclictest41-21ksoftirqd/323:55:173
32010995524,3cyclictest41-21ksoftirqd/321:50:233
32010995521,9cyclictest41-21ksoftirqd/320:35:153
32010995520,7cyclictest41-21ksoftirqd/323:05:003
32010995515,4cyclictest41-21ksoftirqd/323:41:113
32010995514,4cyclictest41-21ksoftirqd/323:38:113
32010995514,4cyclictest41-21ksoftirqd/319:42:543
32010995513,4cyclictest41-21ksoftirqd/319:39:363
32010995427,6cyclictest41-21ksoftirqd/323:45:163
32010995421,9cyclictest41-21ksoftirqd/321:00:233
32010995414,4cyclictest41-21ksoftirqd/319:57:453
32010995412,4cyclictest41-21ksoftirqd/300:38:563
32010995411,5cyclictest41-21ksoftirqd/319:46:193
32010995411,5cyclictest41-21ksoftirqd/319:46:193
3201099537,2cyclictest41-21ksoftirqd/323:20:003
32010995326,6cyclictest41-21ksoftirqd/322:45:293
32010995323,3cyclictest41-21ksoftirqd/320:00:203
32010995319,6cyclictest41-21ksoftirqd/322:25:243
32010995313,4cyclictest41-21ksoftirqd/323:51:503
32010995311,4cyclictest41-21ksoftirqd/321:09:223
32008995316,9cyclictest25-21ksoftirqd/122:35:131
32010995223,4cyclictest41-21ksoftirqd/320:30:183
32010995220,9cyclictest41-21ksoftirqd/319:30:123
32010995220,4cyclictest41-21ksoftirqd/323:20:233
32010995219,7cyclictest41-21ksoftirqd/300:10:083
32010995211,4cyclictest41-21ksoftirqd/319:18:153
32010995211,4cyclictest41-21ksoftirqd/319:18:143
3200899525,10cyclictest25-21ksoftirqd/122:05:141
32010995133,3cyclictest41-21ksoftirqd/300:30:013
32010995126,6cyclictest41-21ksoftirqd/320:45:003
32010995123,10cyclictest41-21ksoftirqd/319:50:233
32010995120,8cyclictest41-21ksoftirqd/322:10:133
32010995116,4cyclictest41-21ksoftirqd/320:48:483
32010995116,4cyclictest41-21ksoftirqd/320:48:483
32010995019,7cyclictest41-21ksoftirqd/322:55:273
32010995017,4cyclictest41-21ksoftirqd/322:50:253
32010995012,9cyclictest41-21ksoftirqd/300:03:253
98322490,2sleep10-21swapper/119:30:121
32010994930,8cyclictest41-21ksoftirqd/323:05:213
32010994914,4cyclictest41-21ksoftirqd/321:11:313
32010994912,9cyclictest41-21ksoftirqd/321:18:093
3200999492,43cyclictest1719-21latency_hist21:25:002
32010994814,4cyclictest41-21ksoftirqd/322:00:213
32008994824,21cyclictest25-21ksoftirqd/100:10:081
32010994737,3cyclictest41-21ksoftirqd/320:30:003
32009994741,3cyclictest2841-21ls00:40:002
32010994618,7cyclictest41-21ksoftirqd/322:40:183
32008994641,3cyclictest250372sleep123:15:151
3201099455,5cyclictest41-21ksoftirqd/322:15:153
3201099452,6cyclictest41-21ksoftirqd/321:25:183
3201099450,3cyclictest41-21ksoftirqd/300:20:173
32010994429,4cyclictest41-21ksoftirqd/320:05:173
3200899440,2cyclictest121rcu_preempt21:45:171
50798430,7rtkit-daemon0-21swapper/023:26:480
32008994324,8cyclictest25-21ksoftirqd/119:45:281
32008994324,8cyclictest25-21ksoftirqd/119:45:281
3200799439,7cyclictest9-21ksoftirqd/020:05:000
3200899429,7cyclictest25-21ksoftirqd/120:15:281
3200899429,7cyclictest25-21ksoftirqd/120:15:281
3200899429,4cyclictest25-21ksoftirqd/121:00:211
3200899426,4cyclictest25-21ksoftirqd/121:35:271
3200899426,10cyclictest25-21ksoftirqd/100:20:201
32008994237,3cyclictest25-21ksoftirqd/100:20:001
3200899420,2cyclictest121rcu_preempt22:00:011
3200899418,4cyclictest25-21ksoftirqd/121:07:251
3200899417,4cyclictest25-21ksoftirqd/123:45:191
3200899416,4cyclictest25-21ksoftirqd/100:30:211
3200899416,3cyclictest25-21ksoftirqd/120:10:171
3200899416,3cyclictest25-21ksoftirqd/100:05:221
32008994128,3cyclictest25-21ksoftirqd/122:40:131
3200899410,3cyclictest121rcu_preempt19:35:131
3200799419,6cyclictest9-21ksoftirqd/000:05:130
32007994136,3cyclictest9-21ksoftirqd/019:25:000
3200799410,3cyclictest9-21ksoftirqd/022:35:180
3200899405,5cyclictest25-21ksoftirqd/120:50:171
3200899405,4cyclictest25-21ksoftirqd/119:15:221
3200899405,4cyclictest25-21ksoftirqd/119:15:211
3200899405,3cyclictest121rcu_preempt22:00:281
32008994035,3cyclictest25-21ksoftirqd/123:15:001
32008994035,2cyclictest25-21ksoftirqd/100:39:591
32008994034,3cyclictest25-21ksoftirqd/120:30:001
3200899399,3cyclictest25-21ksoftirqd/122:55:151
3200899395,6cyclictest121rcu_preempt19:25:241
3200899394,8cyclictest25-21ksoftirqd/123:30:261
3200899394,3cyclictest25-21ksoftirqd/120:30:261
3200899394,3cyclictest121rcu_preempt19:40:201
3200899393,8cyclictest25-21ksoftirqd/120:20:231
3200899393,7cyclictest25-21ksoftirqd/123:40:151
3200899393,4cyclictest25-21ksoftirqd/122:45:181
32008993910,4cyclictest25-21ksoftirqd/123:25:151
3200899390,7cyclictest121rcu_preempt23:55:141
32007993932,4cyclictest9-21ksoftirqd/023:00:010
32009993833,3cyclictest33-21ksoftirqd/222:15:002
32009993833,2cyclictest33-21ksoftirqd/223:00:012
3200899389,4cyclictest25-21ksoftirqd/122:51:351
3200899388,4cyclictest25-21ksoftirqd/121:25:211
3200899386,7cyclictest25-21ksoftirqd/121:40:131
3200899386,6cyclictest25-21ksoftirqd/122:20:151
3200899386,6cyclictest25-21ksoftirqd/119:20:231
3200899385,6cyclictest121rcu_preempt22:30:191
32008993833,3cyclictest25-21ksoftirqd/121:20:001
3200899381,5cyclictest25-21ksoftirqd/123:05:021
32008993810,4cyclictest25-21ksoftirqd/123:35:441
32007993833,3cyclictest9-21ksoftirqd/023:20:000
32007993833,3cyclictest9-21ksoftirqd/021:50:000
32007993833,3cyclictest9-21ksoftirqd/021:15:210
32007993832,3cyclictest9-21ksoftirqd/019:30:000
32007993832,3cyclictest9-21ksoftirqd/000:20:000
32007993832,3cyclictest6536-21cron20:30:010
32007993831,4cyclictest9-21ksoftirqd/021:40:000
32007993824,4cyclictest9-21ksoftirqd/022:15:250
32009993730,4cyclictest33-21ksoftirqd/200:12:282
3200899375,3cyclictest121rcu_preempt22:15:211
3200899373,7cyclictest25-21ksoftirqd/120:35:261
3200899373,7cyclictest25-21ksoftirqd/100:25:271
3200899373,2cyclictest121rcu_preempt23:00:211
32008993732,3cyclictest25-21ksoftirqd/122:15:001
3200899372,8cyclictest25-21ksoftirqd/120:05:271
3200899371,8cyclictest25-21ksoftirqd/121:20:251
3200899371,3cyclictest25-21ksoftirqd/119:55:231
3200899370,9cyclictest25-21ksoftirqd/120:00:241
32007993731,4cyclictest9-21ksoftirqd/019:47:570
32007993731,4cyclictest9-21ksoftirqd/019:47:570
32007993731,3cyclictest9-21ksoftirqd/019:40:200
3200799371,5cyclictest9-21ksoftirqd/019:30:230
3200799370,4cyclictest6687-21latency_hist21:34:590
32009993631,3cyclictest33-21ksoftirqd/220:35:172
32009993630,4cyclictest33-21ksoftirqd/223:59:082
32009993630,4cyclictest33-21ksoftirqd/200:30:332
32009993630,3cyclictest33-21ksoftirqd/220:45:002
32009993629,5cyclictest33-21ksoftirqd/221:41:382
3200899365,6cyclictest121rcu_preempt21:50:271
3200899365,3cyclictest121rcu_preempt20:55:251
3200899365,2cyclictest121rcu_preempt20:40:161
3200899364,2cyclictest121rcu_preempt21:33:391
32008993630,3cyclictest25-21ksoftirqd/100:00:251
3200899361,8cyclictest25-21ksoftirqd/120:45:171
3200899361,8cyclictest25-21ksoftirqd/120:45:171
32007993631,3cyclictest9-21ksoftirqd/020:55:120
32007993631,3cyclictest9-21ksoftirqd/020:20:200
32007993630,3cyclictest9-21ksoftirqd/000:25:010
32007993629,5cyclictest9-21ksoftirqd/019:59:210
32007993629,4cyclictest9-21ksoftirqd/020:37:430
3200799361,2cyclictest121rcu_preempt00:10:200
32009993530,3cyclictest33-21ksoftirqd/220:21:222
32009993529,4cyclictest33-21ksoftirqd/221:13:282
32009993529,4cyclictest33-21ksoftirqd/219:44:502
3200899356,7cyclictest25-21ksoftirqd/121:10:151
3200899354,3cyclictest121rcu_preempt23:50:161
32007993531,3cyclictest9-21ksoftirqd/019:15:200
32007993531,3cyclictest9-21ksoftirqd/019:15:190
32007993531,2cyclictest9-21ksoftirqd/021:04:590
32007993530,3cyclictest9-21ksoftirqd/022:30:000
32007993530,3cyclictest9-21ksoftirqd/021:25:130
32007993528,4cyclictest9-21ksoftirqd/023:58:590
32007993523,3cyclictest9-21ksoftirqd/023:35:000
3200799351,3cyclictest9-21ksoftirqd/019:51:240
32009993431,2cyclictest33-21ksoftirqd/223:05:212
32009993429,3cyclictest33-21ksoftirqd/221:51:292
32009993429,3cyclictest33-21ksoftirqd/200:05:002
32009993428,4cyclictest33-21ksoftirqd/223:48:492
32009993428,4cyclictest33-21ksoftirqd/223:33:202
32009993428,4cyclictest33-21ksoftirqd/220:55:062
32009993428,4cyclictest33-21ksoftirqd/200:15:372
32009993427,5cyclictest33-21ksoftirqd/221:04:212
32008993431,2cyclictest25-21ksoftirqd/123:20:131
32007993430,3cyclictest9-21ksoftirqd/021:20:180
32007993429,3cyclictest9-21ksoftirqd/022:50:130
32007993429,3cyclictest9-21ksoftirqd/022:15:010
32007993429,2cyclictest9-21ksoftirqd/022:00:000
32007993428,4cyclictest9-21ksoftirqd/022:48:130
32007993428,4cyclictest9-21ksoftirqd/020:19:430
32007993428,4cyclictest9-21ksoftirqd/020:19:420
32007993428,4cyclictest9-21ksoftirqd/000:36:170
32007993428,4cyclictest9-21ksoftirqd/000:02:230
32007993428,3cyclictest9-21ksoftirqd/023:15:000
32007993419,4cyclictest9-21ksoftirqd/021:55:000
3200799340,5cyclictest121rcu_preempt00:30:190
32009993329,3cyclictest33-21ksoftirqd/222:26:462
32009993328,3cyclictest33-21ksoftirqd/223:21:582
32009993328,3cyclictest33-21ksoftirqd/220:17:022
32009993328,3cyclictest33-21ksoftirqd/220:17:012
32009993327,4cyclictest33-21ksoftirqd/223:02:152
32009993327,4cyclictest33-21ksoftirqd/222:15:342
32009993327,4cyclictest33-21ksoftirqd/221:47:252
32009993327,4cyclictest33-21ksoftirqd/220:50:502
32009993327,4cyclictest33-21ksoftirqd/220:49:382
32009993327,4cyclictest33-21ksoftirqd/220:49:382
32009993327,4cyclictest33-21ksoftirqd/220:26:182
32009993327,4cyclictest33-21ksoftirqd/219:26:482
32009993327,4cyclictest33-21ksoftirqd/200:22:592
32007993328,3cyclictest9-21ksoftirqd/023:40:130
32007993328,3cyclictest9-21ksoftirqd/022:05:000
32007993328,3cyclictest9-21ksoftirqd/021:40:140
32007993328,3cyclictest9-21ksoftirqd/019:15:010
32007993328,2cyclictest9-21ksoftirqd/023:25:000
32007993327,4cyclictest9-21ksoftirqd/021:07:320
32007993327,4cyclictest9-21ksoftirqd/000:27:540
32007993327,3cyclictest9-21ksoftirqd/023:51:540
3200799331,4cyclictest0-21swapper/020:05:180
32009993227,3cyclictest33-21ksoftirqd/223:40:572
32009993227,3cyclictest33-21ksoftirqd/222:35:142
32009993227,3cyclictest33-21ksoftirqd/222:21:452
32009993227,3cyclictest33-21ksoftirqd/221:39:492
32009993227,3cyclictest33-21ksoftirqd/221:25:192
32009993227,3cyclictest33-21ksoftirqd/200:10:002
32009993226,4cyclictest33-21ksoftirqd/222:00:532
32009993226,4cyclictest33-21ksoftirqd/219:52:052
32009993226,4cyclictest33-21ksoftirqd/219:45:022
32009993226,4cyclictest33-21ksoftirqd/219:45:022
32009993226,3cyclictest4696-21cron23:40:002
32009993220,9cyclictest33-21ksoftirqd/223:10:152
32008993228,2cyclictest25-21ksoftirqd/122:25:241
32007993227,3cyclictest9-21ksoftirqd/023:47:460
32007993227,3cyclictest9-21ksoftirqd/023:36:030
32007993227,3cyclictest9-21ksoftirqd/022:45:000
32007993227,3cyclictest9-21ksoftirqd/022:25:000
32007993227,3cyclictest9-21ksoftirqd/021:10:120
32007993227,3cyclictest9-21ksoftirqd/020:51:480
32007993226,4cyclictest9-21ksoftirqd/020:47:270
32007993226,4cyclictest9-21ksoftirqd/020:47:260
32007993226,4cyclictest9-21ksoftirqd/020:43:290
32007993226,4cyclictest9-21ksoftirqd/020:10:590
32009993127,2cyclictest33-21ksoftirqd/219:20:122
32009993126,3cyclictest33-21ksoftirqd/222:30:182
32009993126,3cyclictest33-21ksoftirqd/221:09:402
32009993126,3cyclictest33-21ksoftirqd/220:30:012
32009993126,3cyclictest33-21ksoftirqd/219:19:322
32009993126,3cyclictest33-21ksoftirqd/219:19:312
32009993125,4cyclictest33-21ksoftirqd/223:15:472
32009993125,4cyclictest33-21ksoftirqd/219:31:032
32009993120,9cyclictest33-21ksoftirqd/219:55:282
32007993126,3cyclictest9-21ksoftirqd/022:30:140
32007993125,4cyclictest9-21ksoftirqd/022:08:340
32007993119,3cyclictest9-21ksoftirqd/019:35:190
32009993026,3cyclictest33-21ksoftirqd/221:30:172
32009993025,3cyclictest33-21ksoftirqd/222:07:302
32009993025,3cyclictest33-21ksoftirqd/221:59:262
32009993025,3cyclictest33-21ksoftirqd/219:37:242
32009993024,4cyclictest33-21ksoftirqd/221:15:532
32009993024,4cyclictest33-21ksoftirqd/220:00:512
32009993024,3cyclictest18226-21kworker/2:000:25:132
32008993025,2cyclictest25-21ksoftirqd/119:50:161
32007993026,3cyclictest9-21ksoftirqd/023:10:000
32007993025,3cyclictest9-21ksoftirqd/020:30:180
32007993018,3cyclictest9-21ksoftirqd/023:05:000
32009992925,3cyclictest33-21ksoftirqd/220:10:172
32009992925,2cyclictest33-21ksoftirqd/222:50:182
32009992923,4cyclictest33-21ksoftirqd/223:50:532
32009992923,4cyclictest33-21ksoftirqd/220:06:322
32009992823,3cyclictest33-21ksoftirqd/222:46:472
32009992822,4cyclictest33-21ksoftirqd/219:13:012
32009992723,3cyclictest33-21ksoftirqd/223:25:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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