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2026-03-13 - 14:05
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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 highest latencies:
System rackdslot4.osadl.org (updated Fri Mar 13, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
287892246203,33sleep20-21swapper/219:08:592
138591228162,22phc2sys0-21swapper/319:07:273
286952205171,23sleep10-21swapper/119:07:451
287252199166,22sleep00-21swapper/019:08:080
812621570,2sleep30-21swapper/320:35:243
29319996624,7cyclictest9-21ksoftirqd/023:10:210
29319996624,7cyclictest9-21ksoftirqd/023:10:200
29319996623,4cyclictest9-21ksoftirqd/021:39:590
29319996122,7cyclictest9-21ksoftirqd/023:26:530
2932099607,6cyclictest25-21ksoftirqd/100:07:081
29319996022,5cyclictest9-21ksoftirqd/020:05:000
29319996021,6cyclictest9-21ksoftirqd/022:41:090
29319996020,7cyclictest9-21ksoftirqd/021:40:270
29319996019,9cyclictest9-21ksoftirqd/020:35:260
29319995923,4cyclictest9-21ksoftirqd/022:53:030
29319995923,3cyclictest9-21ksoftirqd/023:36:480
29319995922,4cyclictest9-21ksoftirqd/021:46:490
29319995921,4cyclictest9-21ksoftirqd/022:29:040
29319995825,9cyclictest9-21ksoftirqd/022:35:180
29319995822,6cyclictest9-21ksoftirqd/022:17:290
29319995822,4cyclictest9-21ksoftirqd/023:47:230
29319995821,9cyclictest9-21ksoftirqd/021:20:140
29319995820,4cyclictest9-21ksoftirqd/021:12:430
29319995820,4cyclictest9-21ksoftirqd/019:47:460
138491580,1ptp4l401ktimersoftd/323:10:203
138491580,1ptp4l401ktimersoftd/323:10:203
29319995726,10cyclictest9-21ksoftirqd/000:00:190
29319995721,4cyclictest9-21ksoftirqd/019:35:070
29319995720,4cyclictest9-21ksoftirqd/020:47:120
29319995718,4cyclictest9-21ksoftirqd/000:25:290
29319995621,4cyclictest9-21ksoftirqd/019:31:090
29319995620,4cyclictest9-21ksoftirqd/023:06:550
29319995620,10cyclictest9-21ksoftirqd/023:40:260
29319995619,4cyclictest9-21ksoftirqd/022:58:210
29319995615,10cyclictest9-21ksoftirqd/000:25:000
29319995526,8cyclictest9-21ksoftirqd/019:20:130
29319995521,6cyclictest9-21ksoftirqd/023:30:260
29319995521,4cyclictest9-21ksoftirqd/022:08:470
29319995515,7cyclictest9-21ksoftirqd/021:00:250
29319995423,2cyclictest121rcu_preempt23:03:310
29319995422,10cyclictest9-21ksoftirqd/023:20:190
29319995416,6cyclictest9-21ksoftirqd/023:55:270
29319995321,8cyclictest9-21ksoftirqd/019:40:270
29319995321,7cyclictest9-21ksoftirqd/022:45:270
29319995321,10cyclictest9-21ksoftirqd/022:30:280
29319995319,8cyclictest9-21ksoftirqd/000:35:140
29319995315,4cyclictest9-21ksoftirqd/020:40:120
181842530,4sleep118187-21phc2sys-jitter22:00:221
181842530,4sleep118187-21phc2sys-jitter22:00:221
29319995215,7cyclictest9-21ksoftirqd/022:20:140
29319995214,3cyclictest9-21ksoftirqd/020:55:200
29319995213,10cyclictest9-21ksoftirqd/020:10:230
202492510,2sleep20-21swapper/219:55:192
2931999503,3cyclictest9-21ksoftirqd/023:15:190
29319995021,8cyclictest9-21ksoftirqd/020:05:230
29319995017,4cyclictest9-21ksoftirqd/020:15:130
292332500,2sleep30-21swapper/300:35:133
2931999495,3cyclictest9-21ksoftirqd/019:10:170
2931999494,3cyclictest9-21ksoftirqd/000:30:240
29319994915,6cyclictest9-21ksoftirqd/020:25:140
29321994817,5cyclictest33-21ksoftirqd/200:20:212
29320994815,4cyclictest25-21ksoftirqd/100:20:131
29319994819,8cyclictest9-21ksoftirqd/020:35:000
29319994818,10cyclictest9-21ksoftirqd/019:15:140
29319994815,3cyclictest9-21ksoftirqd/000:18:320
29319994813,5cyclictest9-21ksoftirqd/019:50:210
29320994716,4cyclictest25-21ksoftirqd/120:45:131
29320994716,4cyclictest25-21ksoftirqd/119:30:191
29320994713,5cyclictest25-21ksoftirqd/121:55:161
2931999479,4cyclictest9-21ksoftirqd/020:20:190
2931999479,3cyclictest9-21ksoftirqd/021:30:250
2931999475,3cyclictest9-21ksoftirqd/000:05:230
29319994717,8cyclictest9-21ksoftirqd/022:10:190
2931999462,3cyclictest9-21ksoftirqd/021:25:230
29320994514,4cyclictest25-21ksoftirqd/121:00:131
29320994512,3cyclictest25-21ksoftirqd/123:45:011
2931999454,2cyclictest9-21ksoftirqd/021:55:010
2931999453,2cyclictest9-21ksoftirqd/020:50:210
2931999452,3cyclictest9-21ksoftirqd/022:00:240
2931999452,3cyclictest9-21ksoftirqd/022:00:240
2931999452,2cyclictest9-21ksoftirqd/019:25:220
2931999452,2cyclictest9-21ksoftirqd/000:10:260
2931999450,2cyclictest9-21ksoftirqd/019:55:230
2931999445,3cyclictest9-21ksoftirqd/021:55:170
2931999443,2cyclictest9-21ksoftirqd/021:15:230
50798430,8rtkit-daemon0-21swapper/121:53:321
2932099435,3cyclictest121rcu_preempt20:30:011
29320994330,10cyclictest25-21ksoftirqd/122:35:001
29320994313,4cyclictest25-21ksoftirqd/121:25:141
2931999432,3cyclictest9-21ksoftirqd/021:05:230
2931999431,2cyclictest9-21ksoftirqd/023:50:200
138491430,0ptp4l401ktimersoftd/323:30:273
138491430,0ptp4l401ktimersoftd/321:40:013
138491430,0ptp4l401ktimersoftd/321:38:073
138491430,0ptp4l401ktimersoftd/319:35:073
2932199422,8cyclictest121rcu_preempt20:29:592
29320994237,3cyclictest25-21ksoftirqd/121:40:001
29320994214,4cyclictest25-21ksoftirqd/120:15:131
29320994211,4cyclictest25-21ksoftirqd/121:10:221
29320994210,3cyclictest25-21ksoftirqd/119:35:161
138491420,0ptp4l401ktimersoftd/319:46:513
29322994011,9cyclictest41-21ksoftirqd/321:15:183
29321994021,3cyclictest33-21ksoftirqd/219:47:452
2932099408,4cyclictest25-21ksoftirqd/123:25:011
29320994035,3cyclictest25-21ksoftirqd/100:00:001
29320994025,4cyclictest25-21ksoftirqd/123:45:001
29320994012,3cyclictest25-21ksoftirqd/123:25:241
29320994011,4cyclictest25-21ksoftirqd/120:55:161
29320994011,3cyclictest25-21ksoftirqd/121:45:231
29322993933,3cyclictest41-21ksoftirqd/322:20:013
2932099398,3cyclictest25-21ksoftirqd/119:10:131
2932099397,5cyclictest25-21ksoftirqd/100:25:281
2932099393,3cyclictest25-21ksoftirqd/120:50:231
2932099392,5cyclictest121rcu_preempt23:50:151
2932099391,5cyclictest25-21ksoftirqd/122:55:221
138491390,0ptp4l401ktimersoftd/321:05:273
138491390,0ptp4l401ktimersoftd/320:55:123
46912380,25sleep125-21ksoftirqd/122:40:131
29322993834,2cyclictest41-21ksoftirqd/300:00:003
29322993832,4cyclictest41-21ksoftirqd/323:17:393
29322993832,3cyclictest41-21ksoftirqd/320:25:203
2932099387,3cyclictest25-21ksoftirqd/122:50:001
2932099386,3cyclictest25-21ksoftirqd/119:20:201
2932099385,3cyclictest25-21ksoftirqd/119:50:121
2932099385,3cyclictest25-21ksoftirqd/100:35:191
29320993833,3cyclictest25-21ksoftirqd/121:30:131
29320993832,3cyclictest25-21ksoftirqd/119:25:111
29320993824,4cyclictest25-21ksoftirqd/122:25:251
29322993732,3cyclictest28643-21cron23:30:013
29322993731,4cyclictest41-21ksoftirqd/323:04:223
29322993731,4cyclictest41-21ksoftirqd/321:50:493
29321993732,3cyclictest33-21ksoftirqd/221:15:182
29321993731,4cyclictest33-21ksoftirqd/223:40:282
29321993731,4cyclictest33-21ksoftirqd/223:38:432
29321993731,4cyclictest33-21ksoftirqd/222:25:122
29321993731,4cyclictest33-21ksoftirqd/222:10:462
2932099379,3cyclictest25-21ksoftirqd/100:15:001
2932099378,4cyclictest25-21ksoftirqd/122:35:141
2932099377,4cyclictest25-21ksoftirqd/122:20:121
2932099377,3cyclictest25-21ksoftirqd/122:05:261
2932099376,3cyclictest25-21ksoftirqd/122:20:011
2932099374,3cyclictest25-21ksoftirqd/120:05:131
2932099374,2cyclictest25-21ksoftirqd/123:05:001
2932099373,32cyclictest23347-21mailstats21:05:231
29320993731,4cyclictest25-21ksoftirqd/123:37:351
29320993730,4cyclictest25-21ksoftirqd/119:59:081
29320993725,3cyclictest25-21ksoftirqd/123:05:131
29320993724,3cyclictest25-21ksoftirqd/122:50:171
2932099372,3cyclictest121rcu_preempt21:15:181
29320993723,3cyclictest25-21ksoftirqd/119:15:241
2932099371,2cyclictest121rcu_preempt23:20:001
138491370,0ptp4l401ktimersoftd/321:30:213
135191370,6getstats2932299cyclictest20:00:153
29322993631,3cyclictest41-21ksoftirqd/323:45:003
29322993630,4cyclictest41-21ksoftirqd/319:18:263
29322993622,12cyclictest41-21ksoftirqd/300:10:263
29321993631,3cyclictest33-21ksoftirqd/220:30:352
29321993631,3cyclictest33-21ksoftirqd/200:30:112
29321993630,4cyclictest33-21ksoftirqd/223:33:382
2932099365,3cyclictest25-21ksoftirqd/123:30:231
2932099365,3cyclictest25-21ksoftirqd/120:35:291
29320993631,3cyclictest25-21ksoftirqd/100:05:001
2932099362,7cyclictest25-21ksoftirqd/120:10:201
29320993622,3cyclictest25-21ksoftirqd/100:30:251
135191360,4getstats2932299cyclictest19:50:153
29322993529,4cyclictest41-21ksoftirqd/322:33:173
29321993530,3cyclictest33-21ksoftirqd/220:40:002
29321993530,3cyclictest33-21ksoftirqd/200:15:382
29321993529,4cyclictest33-21ksoftirqd/223:52:452
29321993529,4cyclictest33-21ksoftirqd/221:03:272
29321993529,4cyclictest33-21ksoftirqd/220:48:222
29321993529,4cyclictest33-21ksoftirqd/220:13:332
29321993528,4cyclictest33-21ksoftirqd/221:40:062
29321993528,4cyclictest33-21ksoftirqd/220:51:402
29321993528,4cyclictest33-21ksoftirqd/220:10:002
29321993528,4cyclictest33-21ksoftirqd/219:35:422
2932099355,4cyclictest25-21ksoftirqd/119:45:121
2932099355,2cyclictest25-21ksoftirqd/120:30:251
29320993530,3cyclictest25-21ksoftirqd/123:10:131
29320993530,3cyclictest25-21ksoftirqd/123:10:121
29320993521,3cyclictest25-21ksoftirqd/120:40:141
2932099351,2cyclictest121rcu_preempt22:10:261
138491350,0ptp4l401ktimersoftd/320:20:153
135191350,1getstats12080-1kworker/3:0H23:20:173
29322993429,3cyclictest41-21ksoftirqd/320:30:363
29322993428,4cyclictest41-21ksoftirqd/323:53:173
29322993428,4cyclictest41-21ksoftirqd/321:49:013
29322993428,4cyclictest41-21ksoftirqd/320:42:593
29322993428,4cyclictest41-21ksoftirqd/319:28:133
29322993428,4cyclictest41-21ksoftirqd/319:10:443
29322993428,3cyclictest41-21ksoftirqd/320:50:013
29321993430,2cyclictest33-21ksoftirqd/222:35:182
29321993429,3cyclictest33-21ksoftirqd/200:30:002
29321993428,4cyclictest33-21ksoftirqd/223:11:332
29321993428,4cyclictest33-21ksoftirqd/223:11:322
29321993428,4cyclictest33-21ksoftirqd/222:03:532
29321993428,4cyclictest33-21ksoftirqd/222:03:532
29321993428,4cyclictest33-21ksoftirqd/220:24:362
29321993428,4cyclictest33-21ksoftirqd/200:00:032
29321993427,4cyclictest33-21ksoftirqd/222:53:422
2932099345,3cyclictest25-21ksoftirqd/119:40:251
2932099344,3cyclictest121rcu_preempt20:20:171
2932099344,2cyclictest25-21ksoftirqd/121:40:161
29320993429,3cyclictest25-21ksoftirqd/121:20:141
29320993421,3cyclictest25-21ksoftirqd/120:00:151
29320993421,3cyclictest25-21ksoftirqd/100:15:241
29322993328,3cyclictest41-21ksoftirqd/320:12:593
29322993327,4cyclictest41-21ksoftirqd/323:38:333
29322993327,3cyclictest41-21ksoftirqd/323:45:173
29322993327,3cyclictest41-21ksoftirqd/319:20:163
29322993325,6cyclictest41-21ksoftirqd/300:05:113
29322993322,9cyclictest41-21ksoftirqd/319:40:173
29322993317,5cyclictest41-21ksoftirqd/321:30:013
29321993329,3cyclictest33-21ksoftirqd/222:42:212
29321993328,3cyclictest33-21ksoftirqd/221:21:402
29321993328,3cyclictest33-21ksoftirqd/219:54:302
29321993328,3cyclictest33-21ksoftirqd/200:36:042
29321993327,4cyclictest33-21ksoftirqd/223:57:262
29321993327,4cyclictest33-21ksoftirqd/222:05:492
29321993327,4cyclictest33-21ksoftirqd/220:57:262
29321993327,4cyclictest33-21ksoftirqd/219:21:062
29322993227,3cyclictest41-21ksoftirqd/322:25:193
29322993227,3cyclictest41-21ksoftirqd/321:20:203
29322993227,3cyclictest41-21ksoftirqd/300:20:003
29322993226,4cyclictest41-21ksoftirqd/322:57:293
29322993226,4cyclictest41-21ksoftirqd/321:14:063
29322993226,4cyclictest41-21ksoftirqd/300:29:403
29322993226,3cyclictest41-21ksoftirqd/322:08:433
29322993225,5cyclictest41-21ksoftirqd/320:16:073
29321993227,3cyclictest33-21ksoftirqd/223:26:112
29321993227,3cyclictest33-21ksoftirqd/223:17:252
29321993227,3cyclictest33-21ksoftirqd/221:15:002
29321993227,3cyclictest33-21ksoftirqd/200:08:082
29321993226,4cyclictest33-21ksoftirqd/223:06:222
29321993226,4cyclictest33-21ksoftirqd/221:26:092
29321993226,4cyclictest33-21ksoftirqd/219:43:362
29321993226,4cyclictest33-21ksoftirqd/200:13:142
29321993225,4cyclictest33-21ksoftirqd/222:58:042
138491320,0ptp4l401ktimersoftd/322:52:593
138491320,0ptp4l401ktimersoftd/322:36:153
138491320,0ptp4l401ktimersoftd/319:31:563
2932299313,2cyclictest121rcu_preempt00:30:273
29322993127,2cyclictest41-21ksoftirqd/320:50:133
29322993126,3cyclictest41-21ksoftirqd/322:00:183
29322993126,3cyclictest41-21ksoftirqd/322:00:183
29322993126,3cyclictest41-21ksoftirqd/321:55:193
29322993126,3cyclictest41-21ksoftirqd/321:01:073
29322993125,4cyclictest41-21ksoftirqd/319:58:373
29322993125,3cyclictest41-21ksoftirqd/322:45:113
29322993124,4cyclictest41-21ksoftirqd/323:08:573
29322993124,4cyclictest41-21ksoftirqd/322:20:393
29321993128,2cyclictest33-21ksoftirqd/222:15:562
29321993126,3cyclictest33-21ksoftirqd/222:45:192
29321993126,3cyclictest33-21ksoftirqd/221:55:492
29321993126,3cyclictest33-21ksoftirqd/221:30:052
29321993126,3cyclictest33-21ksoftirqd/220:45:002
29321993125,4cyclictest33-21ksoftirqd/221:07:282
29321993125,4cyclictest33-21ksoftirqd/220:15:412
29321993125,4cyclictest33-21ksoftirqd/219:32:332
29321993125,4cyclictest33-21ksoftirqd/219:28:162
29321993124,4cyclictest33-21ksoftirqd/223:21:182
138491310,0ptp4l401ktimersoftd/322:40:253
138491310,0ptp4l401ktimersoftd/320:07:303
29321993025,3cyclictest33-21ksoftirqd/222:20:112
29321993024,4cyclictest33-21ksoftirqd/219:14:472
29322992924,3cyclictest41-21ksoftirqd/322:10:243
2932299290,2cyclictest121rcu_preempt00:20:223
29321992924,3cyclictest33-21ksoftirqd/223:47:582
29321992924,3cyclictest33-21ksoftirqd/221:35:212
29321992924,3cyclictest33-21ksoftirqd/220:00:122
29322992822,3cyclictest41-21ksoftirqd/300:00:123
29321992824,3cyclictest33-21ksoftirqd/222:30:132
29321992824,2cyclictest33-21ksoftirqd/221:45:192
29321992823,3cyclictest33-21ksoftirqd/223:00:182
29321992722,3cyclictest33-21ksoftirqd/219:16:422
29321992621,3cyclictest33-21ksoftirqd/221:54:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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