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2026-09-17 - 12:36
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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 Thu Sep 17, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591228199,19phc2sys0-21swapper/319:07:593
48812227162,21sleep20-21swapper/219:09:592
46972205171,22sleep10-21swapper/119:07:411
26682203168,23sleep00-21swapper/019:05:110
138591136112,13phc2sys0-21swapper/319:10:003
138591136112,13phc2sys0-21swapper/319:10:003
5175997135,9cyclictest25-21ksoftirqd/119:25:251
138491680,1ptp4l401ktimersoftd/320:16:173
5174996623,8cyclictest9-21ksoftirqd/000:15:170
5175996432,3cyclictest25-21ksoftirqd/122:25:231
5175996332,4cyclictest25-21ksoftirqd/122:45:251
5175996331,7cyclictest25-21ksoftirqd/122:40:141
5175996331,4cyclictest25-21ksoftirqd/123:40:241
5175996331,4cyclictest25-21ksoftirqd/119:20:141
5175996231,3cyclictest25-21ksoftirqd/123:45:191
5175996231,3cyclictest25-21ksoftirqd/100:30:001
5174996231,4cyclictest9-21ksoftirqd/021:30:120
5175996135,4cyclictest25-21ksoftirqd/119:30:171
5175996133,9cyclictest25-21ksoftirqd/119:35:251
5175996131,7cyclictest25-21ksoftirqd/120:15:281
5175996128,4cyclictest25-21ksoftirqd/121:20:201
5175996127,3cyclictest25-21ksoftirqd/121:35:261
5174996131,4cyclictest9-21ksoftirqd/021:40:270
5174996122,11cyclictest9-21ksoftirqd/019:15:000
5174996122,11cyclictest9-21ksoftirqd/019:15:000
174532610,5sleep017459-21cpuspeed_turbos22:50:130
5175996033,4cyclictest25-21ksoftirqd/119:40:161
5175996032,7cyclictest25-21ksoftirqd/122:50:201
5175996028,3cyclictest25-21ksoftirqd/121:10:171
5175996027,6cyclictest25-21ksoftirqd/122:30:191
5175996023,4cyclictest25-21ksoftirqd/121:05:221
5175995929,3cyclictest25-21ksoftirqd/100:15:271
5175995928,4cyclictest25-21ksoftirqd/119:15:171
5174995930,4cyclictest9-21ksoftirqd/023:30:250
5174995928,3cyclictest9-21ksoftirqd/023:00:010
5174995914,4cyclictest9-21ksoftirqd/020:29:590
5175995830,3cyclictest25-21ksoftirqd/122:55:141
5175995829,3cyclictest25-21ksoftirqd/120:00:121
5175995827,4cyclictest25-21ksoftirqd/123:20:241
5175995827,4cyclictest25-21ksoftirqd/120:05:211
5175995826,3cyclictest25-21ksoftirqd/100:10:001
5175995729,3cyclictest25-21ksoftirqd/120:50:151
5175995728,4cyclictest25-21ksoftirqd/120:40:231
5175995725,4cyclictest25-21ksoftirqd/122:15:261
5175995723,4cyclictest25-21ksoftirqd/121:45:241
5175995627,4cyclictest25-21ksoftirqd/120:30:001
5175995625,4cyclictest25-21ksoftirqd/100:20:141
5174995626,4cyclictest9-21ksoftirqd/023:45:240
5174995620,3cyclictest121rcu_preempt23:20:240
5175995526,3cyclictest25-21ksoftirqd/100:40:001
5175995525,3cyclictest25-21ksoftirqd/123:00:261
5174995529,3cyclictest9-21ksoftirqd/019:35:230
5175995426,3cyclictest25-21ksoftirqd/119:55:241
5175995425,4cyclictest25-21ksoftirqd/123:25:251
5175995425,3cyclictest25-21ksoftirqd/123:05:141
5175995424,4cyclictest25-21ksoftirqd/100:10:121
5175995423,4cyclictest25-21ksoftirqd/120:35:211
5175995423,4cyclictest25-21ksoftirqd/120:30:251
5175995423,3cyclictest25-21ksoftirqd/120:20:121
5174995423,3cyclictest121rcu_preempt22:40:230
5175995324,4cyclictest25-21ksoftirqd/120:45:201
5175995323,3cyclictest25-21ksoftirqd/121:40:261
5175995322,3cyclictest25-21ksoftirqd/123:35:131
5175995321,6cyclictest25-21ksoftirqd/122:05:251
5175995321,3cyclictest25-21ksoftirqd/122:00:231
303252530,2sleep20-21swapper/220:00:122
5175995221,3cyclictest25-21ksoftirqd/123:20:001
517499524,8cyclictest9-21ksoftirqd/000:10:180
5174995226,4cyclictest9-21ksoftirqd/020:45:270
5174995217,9cyclictest9-21ksoftirqd/000:40:000
5175995122,4cyclictest25-21ksoftirqd/119:45:131
5175995121,4cyclictest25-21ksoftirqd/123:55:161
5175995121,3cyclictest25-21ksoftirqd/100:30:171
5175995119,3cyclictest25-21ksoftirqd/121:15:281
5175995115,4cyclictest25-21ksoftirqd/121:30:201
5174995122,3cyclictest9-21ksoftirqd/022:00:130
5174995112,2cyclictest121rcu_preempt00:02:260
5177995034,13cyclictest41-21ksoftirqd/323:00:003
5175995032,7cyclictest25-21ksoftirqd/119:50:211
5175995020,3cyclictest25-21ksoftirqd/123:10:281
5175995020,3cyclictest25-21ksoftirqd/119:10:151
5175995020,3cyclictest25-21ksoftirqd/119:10:151
5175995015,5cyclictest25-21ksoftirqd/123:50:221
5175994920,3cyclictest25-21ksoftirqd/120:55:131
5175994916,7cyclictest25-21ksoftirqd/122:35:261
5174994935,4cyclictest9-21ksoftirqd/023:15:250
5174994935,4cyclictest9-21ksoftirqd/021:55:000
5174994925,2cyclictest9-21ksoftirqd/023:05:270
5174994922,4cyclictest9-21ksoftirqd/019:48:110
5175994820,3cyclictest25-21ksoftirqd/100:00:181
5175994818,5cyclictest25-21ksoftirqd/121:00:131
5175994817,4cyclictest25-21ksoftirqd/121:30:011
517499485,3cyclictest9-21ksoftirqd/020:00:120
5174994834,3cyclictest9-21ksoftirqd/023:10:180
5174994834,3cyclictest9-21ksoftirqd/020:20:170
5174994822,3cyclictest9-21ksoftirqd/022:27:400
5174994818,4cyclictest9-21ksoftirqd/022:45:150
5174994810,10cyclictest9-21ksoftirqd/020:35:250
5176994726,5cyclictest33-21ksoftirqd/200:20:012
517599478,4cyclictest25-21ksoftirqd/122:10:211
5175994722,4cyclictest25-21ksoftirqd/123:30:131
5174994733,3cyclictest9-21ksoftirqd/020:40:120
5174994732,4cyclictest9-21ksoftirqd/019:50:270
5174994730,4cyclictest9-21ksoftirqd/019:40:120
5174994721,3cyclictest9-21ksoftirqd/020:59:570
5174994716,10cyclictest9-21ksoftirqd/020:15:000
5174994712,5cyclictest9-21ksoftirqd/019:25:130
138491470,0ptp4l401ktimersoftd/320:31:583
517599465,6cyclictest25-21ksoftirqd/120:10:231
517499464,3cyclictest9-21ksoftirqd/000:20:180
5174994626,4cyclictest9-21ksoftirqd/020:09:590
5174994622,2cyclictest121rcu_preempt23:35:260
138491460,1ptp4l391rcuc/323:10:323
5176994535,3cyclictest33-21ksoftirqd/220:50:152
517499454,3cyclictest9-21ksoftirqd/020:15:220
5174994538,4cyclictest17264-21cron19:34:590
5174994532,4cyclictest9-21ksoftirqd/021:45:080
5174994531,4cyclictest9-21ksoftirqd/023:00:190
5174994528,4cyclictest9-21ksoftirqd/019:20:190
5174994526,10cyclictest9-21ksoftirqd/020:30:130
5174994515,10cyclictest9-21ksoftirqd/022:15:190
5176994428,5cyclictest33-21ksoftirqd/200:35:002
517499444,3cyclictest9-21ksoftirqd/023:59:550
5174994430,4cyclictest9-21ksoftirqd/023:25:190
5174994429,4cyclictest9-21ksoftirqd/019:55:230
5176994338,3cyclictest33-21ksoftirqd/221:00:002
5176994325,5cyclictest33-21ksoftirqd/222:30:222
5175994330,4cyclictest25-21ksoftirqd/122:20:181
5175994318,3cyclictest25-21ksoftirqd/121:50:141
5174994329,4cyclictest9-21ksoftirqd/023:50:200
5174994329,4cyclictest9-21ksoftirqd/021:05:210
138491430,0ptp4l401ktimersoftd/321:14:093
138491430,0ptp4l401ktimersoftd/319:34:083
5176994230,10cyclictest33-21ksoftirqd/220:20:172
5176994227,4cyclictest33-21ksoftirqd/221:45:132
5176994226,4cyclictest33-21ksoftirqd/222:00:102
5176994224,5cyclictest33-21ksoftirqd/219:55:012
5174994235,4cyclictest9-21ksoftirqd/019:20:010
5174994225,4cyclictest9-21ksoftirqd/022:35:180
5174994225,4cyclictest9-21ksoftirqd/021:55:200
5174994221,9cyclictest9-21ksoftirqd/022:05:190
168352420,5sleep233-21ksoftirqd/222:47:342
138491420,0ptp4l401ktimersoftd/319:22:203
5176994136,3cyclictest33-21ksoftirqd/220:40:002
5176994126,4cyclictest33-21ksoftirqd/219:35:232
5176994125,5cyclictest33-21ksoftirqd/200:25:252
5175994127,3cyclictest25-21ksoftirqd/121:55:151
517499413,2cyclictest121rcu_preempt22:23:580
5174994129,3cyclictest9-21ksoftirqd/021:01:590
5174994129,3cyclictest9-21ksoftirqd/000:30:270
5174994129,2cyclictest9-21ksoftirqd/021:25:230
5174994128,3cyclictest9-21ksoftirqd/021:35:130
5174994126,3cyclictest9-21ksoftirqd/022:12:140
517499412,3cyclictest9-21ksoftirqd/000:25:150
5174994115,4cyclictest9-21ksoftirqd/021:15:250
138491410,0ptp4l401ktimersoftd/322:17:563
138491410,0ptp4l401ktimersoftd/319:55:033
5177994035,3cyclictest25012-21cron00:10:003
5176994035,2cyclictest33-21ksoftirqd/222:19:592
5176994023,5cyclictest33-21ksoftirqd/223:05:252
5176994023,5cyclictest33-21ksoftirqd/223:00:272
5176994023,5cyclictest33-21ksoftirqd/220:10:222
5176994022,5cyclictest33-21ksoftirqd/222:25:182
5176994010,11cyclictest33-21ksoftirqd/219:30:122
5174994034,3cyclictest9-21ksoftirqd/021:25:000
5174994028,3cyclictest9-21ksoftirqd/021:10:150
5174994026,4cyclictest9-21ksoftirqd/023:40:210
517499402,3cyclictest9-21ksoftirqd/020:50:270
517499400,2cyclictest121rcu_preempt00:05:060
138491400,0ptp4l401ktimersoftd/320:23:053
5177993932,4cyclictest12470-21dump-pmu-power23:45:003
5176993933,3cyclictest33-21ksoftirqd/219:25:012
517699392,6cyclictest33-21ksoftirqd/223:00:012
5176993924,5cyclictest33-21ksoftirqd/219:20:012
5176993924,4cyclictest33-21ksoftirqd/221:55:142
5176993923,5cyclictest33-21ksoftirqd/219:45:252
5176993917,13cyclictest33-21ksoftirqd/221:35:112
5176993833,3cyclictest33-21ksoftirqd/221:55:002
5176993833,3cyclictest33-21ksoftirqd/221:14:592
5176993832,3cyclictest33-21ksoftirqd/222:10:012
5176993824,4cyclictest33-21ksoftirqd/223:10:182
5176993823,5cyclictest33-21ksoftirqd/200:10:262
5176993823,3cyclictest33-21ksoftirqd/221:17:362
5176993821,5cyclictest33-21ksoftirqd/221:25:162
5174993824,3cyclictest9-21ksoftirqd/022:34:390
5177993732,3cyclictest41-21ksoftirqd/323:20:173
5177993730,5cyclictest41-21ksoftirqd/320:36:413
5177993730,4cyclictest41-21ksoftirqd/321:58:483
517699374,3cyclictest121rcu_preempt20:27:422
5176993731,4cyclictest33-21ksoftirqd/220:15:422
5176993731,4cyclictest33-21ksoftirqd/200:40:002
5176993731,3cyclictest33-21ksoftirqd/223:45:192
5176993731,3cyclictest33-21ksoftirqd/221:40:222
5176993730,4cyclictest33-21ksoftirqd/219:55:012
5176993723,4cyclictest33-21ksoftirqd/223:40:232
5176993722,4cyclictest33-21ksoftirqd/220:40:212
5176993722,4cyclictest33-21ksoftirqd/220:30:182
517699372,19cyclictest33-21ksoftirqd/223:55:262
5177993631,3cyclictest41-21ksoftirqd/322:30:183
5177993631,3cyclictest41-21ksoftirqd/320:14:563
5177993630,4cyclictest41-21ksoftirqd/323:33:163
5177993630,4cyclictest41-21ksoftirqd/323:29:313
5177993630,4cyclictest41-21ksoftirqd/321:22:503
5177993630,4cyclictest41-21ksoftirqd/319:17:303
5177993629,5cyclictest41-21ksoftirqd/323:18:313
5176993630,3cyclictest33-21ksoftirqd/222:20:202
5176993630,3cyclictest33-21ksoftirqd/220:45:182
5176993627,5cyclictest33-21ksoftirqd/222:10:122
5176993623,3cyclictest33-21ksoftirqd/200:05:012
5176993621,5cyclictest33-21ksoftirqd/219:10:132
5176993621,5cyclictest33-21ksoftirqd/219:10:132
5176993621,5cyclictest33-21ksoftirqd/200:07:102
5176993621,4cyclictest33-21ksoftirqd/222:40:132
5176993620,5cyclictest33-21ksoftirqd/223:35:222
5176993620,5cyclictest33-21ksoftirqd/221:00:272
5176993620,4cyclictest33-21ksoftirqd/220:05:222
5176993616,10cyclictest33-21ksoftirqd/221:22:292
138491360,0ptp4l401ktimersoftd/322:25:213
5177993531,2cyclictest41-21ksoftirqd/300:35:003
5177993530,3cyclictest41-21ksoftirqd/323:50:183
5177993530,3cyclictest41-21ksoftirqd/321:45:103
5177993530,3cyclictest41-21ksoftirqd/300:00:193
5177993529,4cyclictest41-21ksoftirqd/322:54:363
5177993529,4cyclictest41-21ksoftirqd/322:41:203
5177993529,4cyclictest41-21ksoftirqd/322:36:233
5177993528,5cyclictest41-21ksoftirqd/300:39:313
5177993522,11cyclictest41-21ksoftirqd/321:05:003
5176993530,3cyclictest33-21ksoftirqd/222:35:192
5176993519,5cyclictest33-21ksoftirqd/223:50:232
5176993519,5cyclictest33-21ksoftirqd/223:22:582
5177993429,3cyclictest41-21ksoftirqd/323:55:123
5177993429,3cyclictest41-21ksoftirqd/322:20:433
5177993429,3cyclictest32135-21sh22:14:593
5177993428,4cyclictest41-21ksoftirqd/321:52:553
5177993428,4cyclictest41-21ksoftirqd/321:07:173
5177993428,4cyclictest41-21ksoftirqd/320:26:573
5177993428,4cyclictest41-21ksoftirqd/300:26:473
5177993428,4cyclictest41-21ksoftirqd/300:22:393
5176993429,3cyclictest33-21ksoftirqd/223:35:012
5176993429,3cyclictest33-21ksoftirqd/200:20:182
5176993421,5cyclictest33-21ksoftirqd/219:25:242
5176993421,4cyclictest33-21ksoftirqd/222:50:232
5176993419,7cyclictest33-21ksoftirqd/221:05:052
5177993329,3cyclictest41-21ksoftirqd/323:35:183
5177993328,3cyclictest41-21ksoftirqd/322:45:143
5177993328,3cyclictest41-21ksoftirqd/321:40:323
5177993328,3cyclictest41-21ksoftirqd/321:35:123
5177993328,3cyclictest41-21ksoftirqd/320:06:133
5177993328,3cyclictest41-21ksoftirqd/319:50:193
517699335,3cyclictest33-21ksoftirqd/223:15:192
5176993328,3cyclictest33-21ksoftirqd/223:25:132
5176993327,3cyclictest33-21ksoftirqd/219:40:172
5177993227,3cyclictest41-21ksoftirqd/323:00:103
5177993227,3cyclictest41-21ksoftirqd/321:30:093
5177993227,3cyclictest41-21ksoftirqd/319:45:113
5176993227,3cyclictest33-21ksoftirqd/221:30:102
5177993127,3cyclictest41-21ksoftirqd/319:40:163
5177993126,3cyclictest41-21ksoftirqd/321:18:413
5177993126,3cyclictest41-21ksoftirqd/320:51:223
5177993125,4cyclictest41-21ksoftirqd/320:58:343
138491310,0ptp4l401ktimersoftd/319:25:153
5177993026,2cyclictest41-21ksoftirqd/323:45:193
5177993025,3cyclictest41-21ksoftirqd/321:30:013
5177993025,3cyclictest41-21ksoftirqd/300:10:123
5177993024,4cyclictest41-21ksoftirqd/322:03:173
5177993024,3cyclictest41-21ksoftirqd/320:45:133
138491300,0ptp4l401ktimersoftd/323:06:493
1884722923,2sleep341-21ksoftirqd/319:35:243
138491290,0ptp4l401ktimersoftd/322:05:063
5177992822,4cyclictest41-21ksoftirqd/300:18:343
5177992722,3cyclictest19715-21sh20:45:013
5177992720,4cyclictest41-21ksoftirqd/320:03:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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