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2026-04-10 - 22:22
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Fri Apr 10, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154332204170,22sleep00-21swapper/007:07:360
152722204170,22sleep10-21swapper/107:05:311
152732203170,22sleep20-21swapper/207:05:322
139591203169,22phc2sys0-21swapper/307:05:043
634521470,4sleep01592099cyclictest11:20:010
1395918662,15phc2sys0-21swapper/307:10:013
139291730,10ptp4l401ktimersoftd/307:20:203
15920997129,3cyclictest9-21ksoftirqd/008:00:170
15920997129,3cyclictest9-21ksoftirqd/008:00:170
15921996833,4cyclictest25-21ksoftirqd/110:55:001
15921996627,7cyclictest25-21ksoftirqd/109:20:141
15920996628,7cyclictest9-21ksoftirqd/008:45:000
15921996531,5cyclictest25-21ksoftirqd/110:10:231
15921996429,7cyclictest25-21ksoftirqd/112:20:201
15921996421,9cyclictest25-21ksoftirqd/107:27:561
15920996422,7cyclictest9-21ksoftirqd/008:47:140
315472630,3sleep20-21swapper/207:40:192
15921996336,3cyclictest25-21ksoftirqd/110:45:141
15921996330,3cyclictest25-21ksoftirqd/108:20:191
15921996330,10cyclictest25-21ksoftirqd/109:20:001
15921996328,6cyclictest25-21ksoftirqd/107:35:001
15920996322,6cyclictest9-21ksoftirqd/010:19:210
15920996321,6cyclictest9-21ksoftirqd/012:39:530
15921996232,4cyclictest25-21ksoftirqd/109:25:131
15921996230,7cyclictest25-21ksoftirqd/111:50:161
15921996229,7cyclictest25-21ksoftirqd/108:05:261
15921996226,7cyclictest25-21ksoftirqd/112:00:141
15921996226,10cyclictest25-21ksoftirqd/107:45:221
15920996229,4cyclictest9-21ksoftirqd/011:20:140
15920996227,7cyclictest9-21ksoftirqd/007:25:140
15920996226,6cyclictest9-21ksoftirqd/008:10:140
15921996131,5cyclictest25-21ksoftirqd/109:10:221
15921996130,7cyclictest25-21ksoftirqd/110:05:221
15921996129,4cyclictest25-21ksoftirqd/111:15:131
15921996126,3cyclictest25-21ksoftirqd/108:35:191
15921996117,4cyclictest25-21ksoftirqd/108:57:371
15921996116,4cyclictest25-21ksoftirqd/109:30:441
15920996125,6cyclictest9-21ksoftirqd/011:55:160
15921996029,7cyclictest25-21ksoftirqd/111:05:011
15921996029,7cyclictest25-21ksoftirqd/111:05:001
15921996028,8cyclictest25-21ksoftirqd/109:00:181
15921996025,4cyclictest25-21ksoftirqd/108:30:161
15920996029,8cyclictest9-21ksoftirqd/010:10:120
15921995928,3cyclictest25-21ksoftirqd/111:30:151
15921995925,7cyclictest25-21ksoftirqd/107:10:261
15921995918,7cyclictest25-21ksoftirqd/109:53:131
15920995927,9cyclictest9-21ksoftirqd/010:45:220
15920995926,6cyclictest9-21ksoftirqd/009:10:240
15920995926,6cyclictest9-21ksoftirqd/007:10:250
15920995925,7cyclictest9-21ksoftirqd/008:50:260
15920995919,6cyclictest9-21ksoftirqd/011:47:070
15921995827,4cyclictest25-21ksoftirqd/110:30:191
15921995827,3cyclictest25-21ksoftirqd/111:55:111
15921995822,4cyclictest25-21ksoftirqd/110:40:101
15920995855,2cyclictest111rcuc/008:25:010
15920995826,6cyclictest9-21ksoftirqd/011:10:000
15921995727,10cyclictest25-21ksoftirqd/108:00:221
15921995727,10cyclictest25-21ksoftirqd/108:00:221
15921995725,11cyclictest25-21ksoftirqd/112:30:261
15920995725,4cyclictest9-21ksoftirqd/009:25:150
15920995721,8cyclictest9-21ksoftirqd/007:20:230
15921995640,3cyclictest25-21ksoftirqd/109:10:001
15921995630,9cyclictest25-21ksoftirqd/110:00:151
15921995626,7cyclictest25-21ksoftirqd/110:25:201
15920995624,6cyclictest9-21ksoftirqd/008:15:180
192532550,2sleep10-21swapper/107:15:191
15922995520,10cyclictest33-21ksoftirqd/209:30:192
15921995522,4cyclictest25-21ksoftirqd/110:35:241
15920995531,3cyclictest9-21ksoftirqd/012:20:180
15922995424,9cyclictest33-21ksoftirqd/209:35:182
1592099543,9cyclictest9-21ksoftirqd/008:34:590
15920995425,11cyclictest9-21ksoftirqd/012:25:150
15920995412,4cyclictest9-21ksoftirqd/007:30:010
15921995320,6cyclictest25-21ksoftirqd/108:10:161
1592099533,9cyclictest9-21ksoftirqd/010:55:000
15920995324,4cyclictest9-21ksoftirqd/012:05:220
15920995323,10cyclictest9-21ksoftirqd/011:55:000
15920995313,3cyclictest9-21ksoftirqd/008:30:000
15920995313,10cyclictest9-21ksoftirqd/007:45:130
15922995216,9cyclictest33-21ksoftirqd/208:15:002
1592199526,10cyclictest25-21ksoftirqd/109:40:121
15920995249,2cyclictest111rcuc/007:40:200
15920995248,2cyclictest111rcuc/011:36:470
1592099523,7cyclictest9-21ksoftirqd/007:50:270
15922995118,6cyclictest33-21ksoftirqd/207:55:152
15922995116,5cyclictest33-21ksoftirqd/211:55:112
15922995116,4cyclictest33-21ksoftirqd/210:35:002
15922995112,6cyclictest33-21ksoftirqd/207:35:012
1592199516,10cyclictest25-21ksoftirqd/111:30:001
1592199514,8cyclictest21133-21tune2fs07:20:161
15921995133,10cyclictest25-21ksoftirqd/107:55:271
15921995132,9cyclictest25-21ksoftirqd/110:25:011
15921995130,3cyclictest25-21ksoftirqd/108:50:241
1592199510,9cyclictest25-21ksoftirqd/109:55:191
1592099515,9cyclictest9-21ksoftirqd/011:40:200
15920995148,2cyclictest111rcuc/011:31:380
15920995148,2cyclictest111rcuc/009:44:470
1592099514,7cyclictest9-21ksoftirqd/008:05:240
1592099511,9cyclictest9-21ksoftirqd/009:35:220
15922995013,4cyclictest33-21ksoftirqd/208:25:172
1592199503,9cyclictest25-21ksoftirqd/112:35:221
15921995021,6cyclictest25-21ksoftirqd/110:55:241
15920995046,3cyclictest111rcuc/009:58:320
1592099503,9cyclictest9-21ksoftirqd/011:25:260
1592099502,9cyclictest9-21ksoftirqd/009:00:130
1592099502,8cyclictest9-21ksoftirqd/012:00:230
1592299499,8cyclictest33-21ksoftirqd/209:25:002
15922994918,7cyclictest33-21ksoftirqd/212:30:002
15922994918,6cyclictest33-21ksoftirqd/209:50:002
15922994916,4cyclictest33-21ksoftirqd/210:20:182
15922994915,7cyclictest33-21ksoftirqd/211:50:002
15922994915,12cyclictest33-21ksoftirqd/210:00:012
1592199494,9cyclictest25-21ksoftirqd/112:25:211
1592099494,9cyclictest9-21ksoftirqd/009:20:180
1592099494,8cyclictest9-21ksoftirqd/012:10:190
1592299488,4cyclictest33-21ksoftirqd/211:35:152
15922994817,4cyclictest33-21ksoftirqd/211:00:162
15922994817,4cyclictest33-21ksoftirqd/211:00:162
15922994814,6cyclictest33-21ksoftirqd/210:40:162
15922994810,4cyclictest33-21ksoftirqd/208:50:222
1592199486,9cyclictest25-21ksoftirqd/108:45:141
1592199486,10cyclictest25-21ksoftirqd/107:50:161
1592199485,9cyclictest25-21ksoftirqd/111:21:041
1592199483,2cyclictest121rcu_preempt08:40:231
15921994830,8cyclictest25-21ksoftirqd/109:45:171
15921994830,11cyclictest25-21ksoftirqd/111:05:141
1592199481,9cyclictest25-21ksoftirqd/108:25:241
1592199480,11cyclictest25-21ksoftirqd/108:15:221
1592099485,9cyclictest9-21ksoftirqd/010:40:140
1592099484,9cyclictest9-21ksoftirqd/010:00:180
1592099483,6cyclictest9-21ksoftirqd/010:55:150
1592099482,7cyclictest9-21ksoftirqd/007:35:260
1592299479,5cyclictest33-21ksoftirqd/210:12:482
15922994721,4cyclictest33-21ksoftirqd/207:20:252
15922994716,4cyclictest33-21ksoftirqd/209:15:122
15922994713,12cyclictest33-21ksoftirqd/212:00:232
15922994712,5cyclictest33-21ksoftirqd/208:40:252
15922994711,7cyclictest33-21ksoftirqd/210:40:002
15922994710,4cyclictest33-21ksoftirqd/208:35:212
15922994710,3cyclictest33-21ksoftirqd/208:20:222
1592199470,6cyclictest25-21ksoftirqd/112:05:211
1592099474,9cyclictest9-21ksoftirqd/010:20:180
1592099473,8cyclictest9-21ksoftirqd/012:15:230
15920994732,4cyclictest9-21ksoftirqd/009:15:260
15920994725,11cyclictest9-21ksoftirqd/009:45:090
1592299469,4cyclictest33-21ksoftirqd/208:15:282
15922994625,10cyclictest33-21ksoftirqd/210:55:172
1592199465,9cyclictest25-21ksoftirqd/112:10:061
15921994631,4cyclictest25-21ksoftirqd/107:40:161
15921994630,4cyclictest25-21ksoftirqd/109:35:171
15921994629,9cyclictest25-21ksoftirqd/111:45:261
15920994634,2cyclictest9-21ksoftirqd/007:55:130
1592099462,5cyclictest0-21swapper/009:05:240
15920994625,11cyclictest9-21ksoftirqd/008:35:260
1592099460,6cyclictest0-21swapper/008:55:140
139291460,1ptp4l401ktimersoftd/310:29:193
15922994530,5cyclictest33-21ksoftirqd/209:25:262
15922994528,5cyclictest33-21ksoftirqd/210:50:182
15922994521,3cyclictest33-21ksoftirqd/212:08:212
15922994515,3cyclictest33-21ksoftirqd/207:50:132
15922994514,7cyclictest33-21ksoftirqd/207:15:122
15921994529,7cyclictest25-21ksoftirqd/110:15:111
15921994528,7cyclictest25-21ksoftirqd/107:35:011
1592099457,3cyclictest9-21ksoftirqd/010:25:160
1592099452,5cyclictest0-21swapper/010:30:110
1592099451,9cyclictest18930-21fschecks_time09:30:150
1592099451,5cyclictest9-21ksoftirqd/011:00:130
1592099451,5cyclictest9-21ksoftirqd/011:00:130
1592299449,6cyclictest33-21ksoftirqd/210:45:312
1592299447,4cyclictest33-21ksoftirqd/209:52:432
15922994422,12cyclictest33-21ksoftirqd/211:05:292
15922994419,8cyclictest33-21ksoftirqd/208:30:252
15922994418,17cyclictest33-21ksoftirqd/209:40:242
15922994416,7cyclictest33-21ksoftirqd/212:20:122
15922994414,6cyclictest33-21ksoftirqd/212:30:232
15922994413,5cyclictest33-21ksoftirqd/211:15:172
15922994411,4cyclictest33-21ksoftirqd/212:39:592
15922994411,4cyclictest33-21ksoftirqd/207:30:002
15922994410,4cyclictest33-21ksoftirqd/207:10:242
1592299440,6cyclictest121rcu_preempt11:50:152
15921994426,10cyclictest25-21ksoftirqd/111:40:151
15920994419,5cyclictest9-21ksoftirqd/009:50:100
1592099440,5cyclictest20263-21runrttasks07:17:540
1592299438,4cyclictest33-21ksoftirqd/210:27:442
1592299437,4cyclictest33-21ksoftirqd/207:49:112
1592299436,5cyclictest33-21ksoftirqd/208:01:502
1592299436,5cyclictest33-21ksoftirqd/208:01:502
1592299434,5cyclictest33-21ksoftirqd/211:40:222
15922994315,6cyclictest33-21ksoftirqd/210:00:262
15922994312,3cyclictest33-21ksoftirqd/211:14:582
15922994312,13cyclictest33-21ksoftirqd/208:08:442
15921994329,4cyclictest25-21ksoftirqd/111:10:211
1592099435,9cyclictest9-21ksoftirqd/011:10:150
1592099434,8cyclictest9-21ksoftirqd/010:05:120
1592099431,5cyclictest9-21ksoftirqd/010:35:190
1592099430,8cyclictest9-21ksoftirqd/012:30:120
139291430,1ptp4l401ktimersoftd/308:09:493
1592299428,4cyclictest33-21ksoftirqd/210:05:122
15922994236,3cyclictest33-21ksoftirqd/211:30:252
15922994236,3cyclictest2618-21cron12:20:002
15922994226,5cyclictest33-21ksoftirqd/212:10:142
15922994210,7cyclictest33-21ksoftirqd/209:00:172
1592199425,8cyclictest25-21ksoftirqd/112:15:201
139291420,0ptp4l401ktimersoftd/312:13:303
139291420,0ptp4l401ktimersoftd/312:06:303
139291420,0ptp4l401ktimersoftd/310:20:253
139291420,0ptp4l401ktimersoftd/310:05:223
139291420,0ptp4l401ktimersoftd/309:44:553
1592299418,3cyclictest33-21ksoftirqd/210:15:252
1592299416,4cyclictest33-21ksoftirqd/209:05:272
1592299415,4cyclictest33-21ksoftirqd/208:46:112
15922994112,3cyclictest33-21ksoftirqd/208:55:182
15921994112,8cyclictest25-21ksoftirqd/111:35:181
139291410,0ptp4l401ktimersoftd/310:40:123
139291410,0ptp4l401ktimersoftd/310:00:003
139291410,0ptp4l401ktimersoftd/309:50:153
139291410,0ptp4l401ktimersoftd/307:49:433
1592299406,31cyclictest10292-21mailstats11:25:252
15922994023,9cyclictest33-21ksoftirqd/209:10:132
41298390,4rtkit-daemon19505-21memory09:30:223
15923993933,4cyclictest41-21ksoftirqd/312:36:463
15922993915,3cyclictest33-21ksoftirqd/207:38:332
135191390,1getstats0-21swapper/308:54:503
15923993832,4cyclictest41-21ksoftirqd/307:18:023
1592299380,2cyclictest121rcu_preempt11:20:132
15923993732,3cyclictest41-21ksoftirqd/310:55:143
15923993732,3cyclictest41-21ksoftirqd/308:20:113
15923993731,4cyclictest41-21ksoftirqd/312:01:003
15923993731,4cyclictest41-21ksoftirqd/311:56:583
15923993731,4cyclictest41-21ksoftirqd/310:50:593
15923993731,4cyclictest41-21ksoftirqd/309:25:593
15923993731,3cyclictest41-21ksoftirqd/312:20:103
139291370,1ptp4l401ktimersoftd/311:44:393
15923993631,3cyclictest41-21ksoftirqd/308:03:133
15923993631,3cyclictest41-21ksoftirqd/308:03:133
15923993630,4cyclictest41-21ksoftirqd/310:46:183
15923993630,4cyclictest41-21ksoftirqd/308:40:383
15923993630,4cyclictest41-21ksoftirqd/308:36:213
15923993630,4cyclictest41-21ksoftirqd/308:18:553
15923993630,4cyclictest41-21ksoftirqd/307:27:523
139291360,0ptp4l401ktimersoftd/307:40:263
15923993530,3cyclictest41-21ksoftirqd/311:35:113
15923993530,3cyclictest41-21ksoftirqd/311:18:193
15923993530,3cyclictest41-21ksoftirqd/310:11:203
15923993530,3cyclictest41-21ksoftirqd/309:19:003
15923993530,3cyclictest41-21ksoftirqd/307:50:063
15923993530,3cyclictest41-21ksoftirqd/307:37:233
15923993529,4cyclictest41-21ksoftirqd/312:34:533
15923993528,4cyclictest41-21ksoftirqd/310:38:563
139291350,0ptp4l401ktimersoftd/311:50:133
15923993430,3cyclictest41-21ksoftirqd/311:00:113
15923993430,3cyclictest41-21ksoftirqd/311:00:103
15923993429,3cyclictest41-21ksoftirqd/308:32:473
15923993429,3cyclictest41-21ksoftirqd/307:55:123
139291340,13ptp4l401ktimersoftd/309:00:003
139291340,0ptp4l401ktimersoftd/311:27:163
15923993328,3cyclictest41-21ksoftirqd/307:34:423
15923993327,4cyclictest41-21ksoftirqd/312:25:153
15923993327,4cyclictest41-21ksoftirqd/310:01:533
15923993227,3cyclictest41-21ksoftirqd/311:48:123
15923993227,3cyclictest41-21ksoftirqd/309:38:563
15923993227,3cyclictest41-21ksoftirqd/309:10:173
15923993227,3cyclictest41-21ksoftirqd/308:46:473
15923993226,4cyclictest41-21ksoftirqd/311:32:073
15923993226,4cyclictest41-21ksoftirqd/311:13:343
15923993126,3cyclictest41-21ksoftirqd/312:17:203
15923993126,3cyclictest41-21ksoftirqd/309:02:203
15923993025,3cyclictest41-21ksoftirqd/311:24:333
139291300,0ptp4l401ktimersoftd/308:10:233
15923992924,3cyclictest41-21ksoftirqd/310:15:063
15923992924,3cyclictest41-21ksoftirqd/309:49:503
15923992923,4cyclictest41-21ksoftirqd/309:07:053
139291290,0ptp4l401ktimersoftd/310:31:543
139291280,1ptp4l31142-21kworker/3:211:06:423
15923992723,3cyclictest41-21ksoftirqd/309:20:133
15923992722,3cyclictest41-21ksoftirqd/308:25:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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