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2026-04-19 - 06:38
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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 Sun Apr 19, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209772226166,49sleep00-21swapper/019:06:480
138591209168,22phc2sys0-21swapper/319:05:473
209492205171,22sleep20-21swapper/219:06:252
209532201167,22sleep10-21swapper/119:06:291
2123528361,12sleep00-21swapper/019:10:000
21528997126,8cyclictest25-21ksoftirqd/119:50:001
21528996331,3cyclictest25-21ksoftirqd/121:00:201
21528995927,8cyclictest25-21ksoftirqd/119:10:141
21528995821,7cyclictest25-21ksoftirqd/119:55:171
21528995819,9cyclictest25-21ksoftirqd/120:40:131
21528995819,4cyclictest25-21ksoftirqd/100:00:001
138491580,45ptp4l0-21swapper/319:10:023
21528995726,9cyclictest25-21ksoftirqd/119:40:141
21528995622,7cyclictest25-21ksoftirqd/122:30:251
21528995618,7cyclictest25-21ksoftirqd/121:40:231
138491560,1ptp4l401ktimersoftd/319:21:183
2152899552,9cyclictest25-21ksoftirqd/120:30:001
2152899552,9cyclictest25-21ksoftirqd/120:30:001
21528995522,7cyclictest25-21ksoftirqd/119:15:241
21528995419,5cyclictest25-21ksoftirqd/123:00:201
21528995417,7cyclictest25-21ksoftirqd/119:50:231
19802540,1sleep20-21swapper/219:35:132
76082530,1sleep30-21swapper/323:00:183
2152899537,3cyclictest25-21ksoftirqd/121:50:151
21528995322,4cyclictest25-21ksoftirqd/122:40:241
21528995320,6cyclictest25-21ksoftirqd/123:40:131
21528995319,10cyclictest25-21ksoftirqd/122:50:181
21528995315,6cyclictest25-21ksoftirqd/123:25:211
2152899526,3cyclictest25-21ksoftirqd/120:30:251
2152899526,3cyclictest25-21ksoftirqd/119:25:261
21528995221,9cyclictest25-21ksoftirqd/119:20:241
21528995221,7cyclictest25-21ksoftirqd/121:35:261
21528995221,4cyclictest25-21ksoftirqd/123:05:161
21528995221,10cyclictest25-21ksoftirqd/122:55:211
21528995220,7cyclictest25-21ksoftirqd/121:25:151
21528995220,10cyclictest25-21ksoftirqd/123:35:191
21528995214,4cyclictest25-21ksoftirqd/121:48:071
282182510,2sleep10-21swapper/121:30:221
2152899516,3cyclictest25-21ksoftirqd/122:15:231
2152899516,3cyclictest25-21ksoftirqd/120:50:181
2152899515,3cyclictest25-21ksoftirqd/100:05:241
2152899515,2cyclictest25-21ksoftirqd/123:30:181
2152899514,2cyclictest25-21ksoftirqd/122:20:131
2152799516,7cyclictest9-21ksoftirqd/020:30:170
2152899507,2cyclictest25-21ksoftirqd/100:25:191
2152899506,3cyclictest25-21ksoftirqd/123:20:231
2152899506,3cyclictest25-21ksoftirqd/100:15:171
2152899505,3cyclictest25-21ksoftirqd/122:10:221
2152899505,3cyclictest25-21ksoftirqd/122:00:161
2152899505,3cyclictest25-21ksoftirqd/122:00:161
21528995024,8cyclictest25-21ksoftirqd/100:20:131
21528995024,8cyclictest25-21ksoftirqd/100:20:131
21528995013,4cyclictest25-21ksoftirqd/121:05:131
2152899501,2cyclictest121rcu_preempt22:40:011
21527995037,3cyclictest9-21ksoftirqd/020:30:010
21527995037,3cyclictest9-21ksoftirqd/020:30:010
21527995022,3cyclictest9-21ksoftirqd/019:50:120
2152899495,2cyclictest25-21ksoftirqd/121:55:161
21528994929,9cyclictest25-21ksoftirqd/121:15:161
21527994918,4cyclictest9-21ksoftirqd/019:44:590
2152899489,6cyclictest25-21ksoftirqd/120:45:181
2152899488,7cyclictest25-21ksoftirqd/122:30:001
2152899484,5cyclictest25-21ksoftirqd/100:40:001
2152899484,3cyclictest25-21ksoftirqd/120:55:271
2152899480,6cyclictest25-21ksoftirqd/120:40:001
21527994818,4cyclictest9-21ksoftirqd/021:05:150
21527994818,3cyclictest9-21ksoftirqd/022:00:270
21527994818,3cyclictest9-21ksoftirqd/022:00:260
2152899475,2cyclictest25-21ksoftirqd/120:15:011
2152899474,3cyclictest25-21ksoftirqd/120:05:001
2152899471,2cyclictest121rcu_preempt21:20:141
2152899470,2cyclictest121rcu_preempt19:34:591
21527994718,3cyclictest9-21ksoftirqd/023:40:130
2152899465,2cyclictest25-21ksoftirqd/122:50:011
2152899464,5cyclictest25-21ksoftirqd/100:10:161
2152899463,6cyclictest25-21ksoftirqd/123:15:221
2152899461,8cyclictest25-21ksoftirqd/100:05:011
2152899461,2cyclictest121rcu_preempt20:15:131
2152799466,8cyclictest9-21ksoftirqd/000:05:120
21527994616,3cyclictest9-21ksoftirqd/022:10:120
2152799461,2cyclictest121rcu_preempt19:20:000
21527994612,4cyclictest9-21ksoftirqd/020:25:000
2152899457,2cyclictest1303-21runrttasks21:11:231
2152899455,6cyclictest25-21ksoftirqd/123:45:141
2152899454,6cyclictest25-21ksoftirqd/120:25:001
2152899453,3cyclictest25-21ksoftirqd/123:50:161
21528994514,9cyclictest25-21ksoftirqd/100:34:101
21527994517,4cyclictest9-21ksoftirqd/000:00:270
21527994517,3cyclictest9-21ksoftirqd/023:45:210
21527994517,3cyclictest9-21ksoftirqd/023:30:150
21527994516,3cyclictest9-21ksoftirqd/022:30:230
21527994514,4cyclictest9-21ksoftirqd/021:15:210
2152799450,5cyclictest121rcu_preempt20:40:000
21528994434,3cyclictest25-21ksoftirqd/119:35:221
2152899443,2cyclictest121rcu_preempt23:10:171
2152899443,2cyclictest121rcu_preempt23:10:171
2152899441,8cyclictest25-21ksoftirqd/122:05:241
21527994419,3cyclictest9-21ksoftirqd/022:45:260
21527994416,3cyclictest9-21ksoftirqd/023:25:130
21527994415,3cyclictest9-21ksoftirqd/021:30:280
21527994413,4cyclictest9-21ksoftirqd/022:35:240
2152799441,2cyclictest121rcu_preempt22:45:000
2152899431,3cyclictest25-21ksoftirqd/120:05:141
2152799432,3cyclictest121rcu_preempt00:00:000
21527994316,4cyclictest9-21ksoftirqd/019:25:200
21527994313,4cyclictest9-21ksoftirqd/022:05:190
21527994312,4cyclictest9-21ksoftirqd/020:40:220
21527994312,4cyclictest9-21ksoftirqd/020:15:110
21527994311,4cyclictest9-21ksoftirqd/021:25:120
2152799430,4cyclictest9-21ksoftirqd/000:10:130
138491430,0ptp4l401ktimersoftd/320:20:183
21527994216,3cyclictest9-21ksoftirqd/023:20:220
21527994214,3cyclictest9-21ksoftirqd/020:55:130
21527994214,3cyclictest9-21ksoftirqd/000:35:150
21527994213,3cyclictest9-21ksoftirqd/022:50:180
21527994213,3cyclictest9-21ksoftirqd/000:15:120
21527994212,4cyclictest9-21ksoftirqd/023:00:180
21527994211,4cyclictest9-21ksoftirqd/022:15:240
21527994211,4cyclictest9-21ksoftirqd/021:20:130
21527994211,4cyclictest9-21ksoftirqd/000:30:160
21527994210,4cyclictest9-21ksoftirqd/023:10:260
21527994210,4cyclictest9-21ksoftirqd/023:10:250
138491420,0ptp4l401ktimersoftd/300:35:173
21527994134,2cyclictest9-21ksoftirqd/020:45:230
21527994128,3cyclictest9-21ksoftirqd/021:50:120
21527994114,4cyclictest9-21ksoftirqd/021:00:150
21527994112,4cyclictest9-21ksoftirqd/023:20:020
21527994112,3cyclictest9-21ksoftirqd/000:20:170
21527994112,3cyclictest9-21ksoftirqd/000:20:170
21527994111,4cyclictest9-21ksoftirqd/022:20:170
21527994111,4cyclictest9-21ksoftirqd/021:40:160
21527994111,3cyclictest9-21ksoftirqd/021:55:220
21527994035,2cyclictest9-21ksoftirqd/020:05:010
21527994013,4cyclictest9-21ksoftirqd/019:30:230
21529993913,25cyclictest0-21swapper/221:56:232
2152999390,37cyclictest0-21swapper/219:50:332
2152799399,8cyclictest9-21ksoftirqd/020:50:130
2152799399,3cyclictest9-21ksoftirqd/023:50:220
21527993931,3cyclictest9-21ksoftirqd/021:10:140
21527993913,4cyclictest9-21ksoftirqd/023:05:240
21527993910,3cyclictest9-21ksoftirqd/022:55:270
138491390,1ptp4l401ktimersoftd/320:42:403
21530993832,4cyclictest41-21ksoftirqd/323:53:133
2152799387,4cyclictest9-21ksoftirqd/023:35:140
2152799382,2cyclictest121rcu_preempt21:35:240
2152799381,2cyclictest121rcu_preempt00:30:000
138491380,0ptp4l401ktimersoftd/321:48:373
138491380,0ptp4l401ktimersoftd/300:15:183
21530993730,4cyclictest41-21ksoftirqd/319:48:313
21529993731,4cyclictest33-21ksoftirqd/222:45:302
21529993730,5cyclictest33-21ksoftirqd/220:04:342
21527993732,2cyclictest9-21ksoftirqd/021:45:260
21530993631,3cyclictest41-21ksoftirqd/300:10:343
21530993630,4cyclictest41-21ksoftirqd/323:27:423
21530993629,4cyclictest41-21ksoftirqd/322:50:113
2152999363,2cyclictest121rcu_preempt21:26:382
21529993632,3cyclictest33-21ksoftirqd/200:30:002
21529993631,3cyclictest33-21ksoftirqd/221:10:332
21529993630,4cyclictest33-21ksoftirqd/223:08:472
21529993630,3cyclictest33-21ksoftirqd/220:55:112
21529993629,4cyclictest33-21ksoftirqd/223:35:592
2152799365,3cyclictest9-21ksoftirqd/019:45:240
21527993624,3cyclictest9-21ksoftirqd/019:55:240
2152799361,2cyclictest121rcu_preempt19:35:180
21530993530,3cyclictest41-21ksoftirqd/320:35:153
21530993529,4cyclictest41-21ksoftirqd/322:56:133
21530993529,4cyclictest41-21ksoftirqd/322:45:503
21530993529,4cyclictest41-21ksoftirqd/322:11:323
21530993529,4cyclictest41-21ksoftirqd/320:27:213
21530993529,4cyclictest41-21ksoftirqd/320:27:213
21530993528,4cyclictest41-21ksoftirqd/320:19:323
21529993530,3cyclictest33-21ksoftirqd/223:28:172
21529993530,3cyclictest33-21ksoftirqd/221:35:012
21529993530,3cyclictest33-21ksoftirqd/200:10:442
21529993529,4cyclictest33-21ksoftirqd/223:59:182
21529993529,4cyclictest33-21ksoftirqd/222:28:572
21529993529,4cyclictest33-21ksoftirqd/220:40:562
2152799353,3cyclictest121rcu_preempt22:25:230
21527993531,2cyclictest9-21ksoftirqd/020:05:010
21527993530,2cyclictest9-21ksoftirqd/019:20:130
2152799351,7cyclictest9-21ksoftirqd/020:10:120
138491350,0ptp4l401ktimersoftd/319:50:253
21530993430,3cyclictest41-21ksoftirqd/319:35:173
21530993429,3cyclictest41-21ksoftirqd/320:55:123
21530993429,3cyclictest41-21ksoftirqd/319:44:143
21530993428,4cyclictest41-21ksoftirqd/323:45:553
21530993428,4cyclictest41-21ksoftirqd/322:02:493
21530993428,4cyclictest41-21ksoftirqd/322:02:493
21529993429,3cyclictest33-21ksoftirqd/221:15:122
21529993428,4cyclictest33-21ksoftirqd/223:45:542
21529993428,4cyclictest33-21ksoftirqd/222:59:532
21529993428,4cyclictest33-21ksoftirqd/222:53:512
21529993428,4cyclictest33-21ksoftirqd/220:23:032
21529993428,4cyclictest33-21ksoftirqd/219:32:572
21530993328,3cyclictest41-21ksoftirqd/323:10:133
21530993328,3cyclictest41-21ksoftirqd/323:10:133
21530993328,3cyclictest41-21ksoftirqd/322:20:343
21530993328,3cyclictest41-21ksoftirqd/321:41:523
21530993328,3cyclictest41-21ksoftirqd/321:27:033
21530993327,4cyclictest41-21ksoftirqd/320:09:133
21530993327,4cyclictest41-21ksoftirqd/319:58:573
21530993327,4cyclictest41-21ksoftirqd/300:03:563
21530993327,3cyclictest41-21ksoftirqd/322:05:153
21529993329,2cyclictest33-21ksoftirqd/223:40:212
21529993328,3cyclictest33-21ksoftirqd/222:13:062
21529993328,3cyclictest33-21ksoftirqd/221:40:102
21529993327,4cyclictest33-21ksoftirqd/223:50:072
21529993327,4cyclictest33-21ksoftirqd/223:03:072
21529993327,4cyclictest33-21ksoftirqd/222:38:302
21529993327,4cyclictest33-21ksoftirqd/222:33:332
21529993327,4cyclictest33-21ksoftirqd/220:26:132
21529993327,4cyclictest33-21ksoftirqd/220:26:132
21529993327,4cyclictest33-21ksoftirqd/219:47:202
21529993327,4cyclictest33-21ksoftirqd/200:23:572
21529993327,4cyclictest33-21ksoftirqd/200:23:572
21529993327,4cyclictest33-21ksoftirqd/200:05:282
138491330,0ptp4l401ktimersoftd/321:35:163
21530993227,3cyclictest41-21ksoftirqd/321:31:083
21530993226,4cyclictest41-21ksoftirqd/323:09:373
21530993226,4cyclictest41-21ksoftirqd/321:12:513
21530993226,4cyclictest41-21ksoftirqd/319:17:223
21529993227,3cyclictest33-21ksoftirqd/221:39:222
21529993227,3cyclictest33-21ksoftirqd/220:10:522
21529993227,3cyclictest33-21ksoftirqd/219:20:192
21529993226,4cyclictest33-21ksoftirqd/222:04:262
21529993226,4cyclictest33-21ksoftirqd/222:04:252
21529993226,4cyclictest33-21ksoftirqd/220:53:082
21529993226,4cyclictest33-21ksoftirqd/220:08:072
21529993225,5cyclictest33-21ksoftirqd/200:03:352
138491320,11ptp4l0-21swapper/300:28:263
138491320,0ptp4l401ktimersoftd/322:41:173
138491320,0ptp4l401ktimersoftd/322:29:183
138491320,0ptp4l401ktimersoftd/319:25:113
21530993125,4cyclictest41-21ksoftirqd/323:38:373
21530993125,4cyclictest41-21ksoftirqd/323:17:433
21530993125,4cyclictest41-21ksoftirqd/321:19:263
21530993125,4cyclictest41-21ksoftirqd/320:50:043
21530993125,4cyclictest41-21ksoftirqd/320:31:543
21530993124,4cyclictest41-21ksoftirqd/300:09:273
21529993126,3cyclictest33-21ksoftirqd/222:41:512
21529993126,3cyclictest33-21ksoftirqd/222:06:532
21529993126,3cyclictest33-21ksoftirqd/221:48:502
21529993126,3cyclictest33-21ksoftirqd/221:21:352
21529993126,3cyclictest33-21ksoftirqd/220:40:002
21529993125,4cyclictest33-21ksoftirqd/223:22:112
21529993125,4cyclictest33-21ksoftirqd/222:20:582
21529993125,4cyclictest33-21ksoftirqd/219:10:422
138491310,0ptp4l401ktimersoftd/323:56:183
138491310,0ptp4l401ktimersoftd/322:18:543
138491310,0ptp4l401ktimersoftd/320:14:503
21530993025,3cyclictest41-21ksoftirqd/321:08:023
21530993025,3cyclictest41-21ksoftirqd/321:01:463
21530993024,4cyclictest41-21ksoftirqd/300:32:573
21529993025,3cyclictest33-21ksoftirqd/219:30:012
21529993025,3cyclictest28687-21kworker/2:021:05:132
21530992924,3cyclictest41-21ksoftirqd/322:31:593
21530992923,4cyclictest41-21ksoftirqd/320:02:423
21529992924,3cyclictest33-21ksoftirqd/223:10:132
21529992924,3cyclictest33-21ksoftirqd/223:10:132
21529992924,3cyclictest33-21ksoftirqd/221:04:262
21529992924,3cyclictest33-21ksoftirqd/219:58:052
21529992919,9cyclictest33-21ksoftirqd/219:40:212
138491290,0ptp4l401ktimersoftd/321:22:523
21530992824,2cyclictest41-21ksoftirqd/323:40:393
21530992822,4cyclictest41-21ksoftirqd/323:30:203
21530992822,4cyclictest41-21ksoftirqd/322:36:353
21530992822,3cyclictest41-21ksoftirqd/320:47:473
21529992823,3cyclictest33-21ksoftirqd/220:15:442
21529992823,3cyclictest33-21ksoftirqd/200:38:282
21529992822,4cyclictest33-21ksoftirqd/222:15:082
21529992822,4cyclictest33-21ksoftirqd/219:15:352
21529992821,4cyclictest33-21ksoftirqd/200:34:532
21529992819,5cyclictest33-21ksoftirqd/220:30:102
21530992722,3cyclictest41-21ksoftirqd/323:23:323
21530992722,3cyclictest41-21ksoftirqd/321:56:363
21530992722,3cyclictest41-21ksoftirqd/300:20:543
21530992722,3cyclictest41-21ksoftirqd/300:20:543
21529992722,3cyclictest33-21ksoftirqd/223:15:252
138491270,0ptp4l401ktimersoftd/321:53:203
21529992521,3cyclictest33-21ksoftirqd/221:50:232
21529992520,3cyclictest33-21ksoftirqd/223:31:592
21529992512,10cyclictest33-21ksoftirqd/200:15:262
21529992418,4cyclictest33-21ksoftirqd/220:45:462
138491240,0ptp4l401ktimersoftd/319:30:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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