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2026-06-18 - 19:56
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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 rackdslot3.osadl.org (updated Thu Jun 18, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262142209143,23sleep30-21swapper/307:06:413
263482204160,33sleep20-21swapper/207:08:252
261662203169,22sleep00-21swapper/007:06:010
263622202169,22sleep10-21swapper/107:08:361
80421160,2sleep00-21swapper/008:30:140
26773997222,8cyclictest33-21ksoftirqd/207:25:252
26773997122,9cyclictest33-21ksoftirqd/209:20:152
26773996926,8cyclictest33-21ksoftirqd/207:15:182
26773996822,4cyclictest33-21ksoftirqd/211:40:102
26773996815,11cyclictest33-21ksoftirqd/208:55:002
26773996727,9cyclictest33-21ksoftirqd/208:50:002
26773996727,9cyclictest33-21ksoftirqd/208:50:002
26773996723,5cyclictest33-21ksoftirqd/209:55:222
26773996722,4cyclictest33-21ksoftirqd/209:30:232
26771996631,8cyclictest9-21ksoftirqd/009:55:190
26771996630,7cyclictest9-21ksoftirqd/007:30:010
26773996528,3cyclictest33-21ksoftirqd/211:00:002
26773996526,5cyclictest33-21ksoftirqd/209:10:132
26773996526,5cyclictest33-21ksoftirqd/208:20:002
26773996526,5cyclictest33-21ksoftirqd/207:35:162
26773996524,10cyclictest33-21ksoftirqd/210:40:002
26773996521,10cyclictest33-21ksoftirqd/207:45:182
26771996531,4cyclictest9-21ksoftirqd/012:00:010
26771996530,4cyclictest9-21ksoftirqd/009:40:150
26773996429,5cyclictest33-21ksoftirqd/211:15:182
26773996429,5cyclictest33-21ksoftirqd/211:15:182
26773996428,10cyclictest33-21ksoftirqd/210:20:172
26773996427,5cyclictest33-21ksoftirqd/210:15:182
26773996426,9cyclictest33-21ksoftirqd/207:55:182
26771996429,6cyclictest9-21ksoftirqd/009:50:150
26771996428,7cyclictest9-21ksoftirqd/008:20:130
26773996327,10cyclictest33-21ksoftirqd/208:30:002
26771996330,10cyclictest9-21ksoftirqd/008:05:150
26771996329,7cyclictest9-21ksoftirqd/007:10:140
26771996329,11cyclictest9-21ksoftirqd/010:50:000
26771996328,8cyclictest9-21ksoftirqd/010:10:130
26771996326,7cyclictest9-21ksoftirqd/008:45:130
26771996326,7cyclictest9-21ksoftirqd/008:45:120
26771996325,7cyclictest9-21ksoftirqd/009:05:190
26773996228,5cyclictest33-21ksoftirqd/211:05:152
26773996226,5cyclictest33-21ksoftirqd/209:40:192
26773996219,11cyclictest33-21ksoftirqd/207:30:222
26773996215,5cyclictest33-21ksoftirqd/210:45:002
26771996228,6cyclictest9-21ksoftirqd/011:35:190
26771996228,6cyclictest9-21ksoftirqd/007:50:210
26771996226,6cyclictest9-21ksoftirqd/010:05:000
26771996221,9cyclictest9-21ksoftirqd/008:39:520
26773996125,5cyclictest33-21ksoftirqd/212:10:172
26773996125,4cyclictest33-21ksoftirqd/211:51:522
26773996124,10cyclictest33-21ksoftirqd/211:50:012
26773996124,10cyclictest33-21ksoftirqd/211:50:012
26773996123,4cyclictest33-21ksoftirqd/209:35:582
26773996121,4cyclictest33-21ksoftirqd/209:05:232
26771996130,6cyclictest9-21ksoftirqd/010:05:250
26771996129,6cyclictest9-21ksoftirqd/009:10:170
26771996129,5cyclictest9-21ksoftirqd/010:15:220
26771996129,4cyclictest9-21ksoftirqd/011:25:270
26771996128,6cyclictest9-21ksoftirqd/011:50:250
26771996128,4cyclictest9-21ksoftirqd/012:15:170
26771996128,4cyclictest9-21ksoftirqd/012:15:160
26771996127,7cyclictest9-21ksoftirqd/012:10:190
26771996127,7cyclictest9-21ksoftirqd/011:30:150
26771996127,7cyclictest9-21ksoftirqd/010:35:160
26771996126,4cyclictest9-21ksoftirqd/009:50:000
26773996025,5cyclictest33-21ksoftirqd/211:32:142
26773996022,11cyclictest33-21ksoftirqd/212:35:202
26771996033,8cyclictest9-21ksoftirqd/008:40:250
26771996030,7cyclictest9-21ksoftirqd/009:30:140
26771996029,5cyclictest9-21ksoftirqd/009:35:140
26771996029,4cyclictest9-21ksoftirqd/010:25:150
26771996027,10cyclictest9-21ksoftirqd/010:50:240
26771996026,7cyclictest9-21ksoftirqd/008:55:180
26771996024,7cyclictest9-21ksoftirqd/012:35:200
26771996020,4cyclictest9-21ksoftirqd/011:40:170
26773995927,4cyclictest33-21ksoftirqd/210:00:192
26773995925,4cyclictest33-21ksoftirqd/208:30:112
26773995923,4cyclictest33-21ksoftirqd/208:40:182
26773995922,11cyclictest33-21ksoftirqd/209:15:162
26773995921,12cyclictest33-21ksoftirqd/208:00:122
26773995921,11cyclictest33-21ksoftirqd/211:20:202
26773995921,10cyclictest33-21ksoftirqd/210:10:152
26773995920,9cyclictest33-21ksoftirqd/211:15:002
26773995920,9cyclictest33-21ksoftirqd/211:00:112
26773995919,10cyclictest33-21ksoftirqd/209:25:202
26771995932,6cyclictest9-21ksoftirqd/008:50:210
26771995930,3cyclictest9-21ksoftirqd/010:20:260
26771995929,5cyclictest9-21ksoftirqd/007:20:250
26771995928,6cyclictest9-21ksoftirqd/011:05:130
26771995928,4cyclictest9-21ksoftirqd/007:40:130
26771995927,4cyclictest9-21ksoftirqd/009:15:190
26771995927,4cyclictest9-21ksoftirqd/007:30:130
26771995926,7cyclictest9-21ksoftirqd/010:40:140
26771995925,8cyclictest9-21ksoftirqd/011:45:200
26771995925,8cyclictest9-21ksoftirqd/011:45:200
26771995925,7cyclictest9-21ksoftirqd/009:00:160
26771995925,7cyclictest9-21ksoftirqd/008:15:010
26771995925,4cyclictest9-21ksoftirqd/009:25:120
26773995837,9cyclictest33-21ksoftirqd/212:00:012
26773995826,5cyclictest33-21ksoftirqd/208:25:002
26773995824,4cyclictest33-21ksoftirqd/212:25:142
26773995822,9cyclictest33-21ksoftirqd/208:10:222
26773995820,10cyclictest33-21ksoftirqd/212:20:172
26773995818,11cyclictest33-21ksoftirqd/211:25:192
26771995828,5cyclictest9-21ksoftirqd/010:55:210
26771995828,4cyclictest9-21ksoftirqd/007:35:250
26771995826,4cyclictest9-21ksoftirqd/008:25:200
26771995824,7cyclictest9-21ksoftirqd/011:20:240
26771995822,4cyclictest9-21ksoftirqd/011:04:590
26773995722,11cyclictest33-21ksoftirqd/208:35:152
26773995721,10cyclictest33-21ksoftirqd/207:40:162
26773995719,11cyclictest33-21ksoftirqd/210:35:002
26772995712,6cyclictest25-21ksoftirqd/108:45:121
26772995712,6cyclictest25-21ksoftirqd/108:45:121
26771995726,7cyclictest9-21ksoftirqd/009:20:130
26771995724,8cyclictest9-21ksoftirqd/010:30:210
26771995723,5cyclictest9-21ksoftirqd/012:00:240
26773995624,4cyclictest33-21ksoftirqd/209:50:132
26773995623,7cyclictest33-21ksoftirqd/207:20:172
26773995623,5cyclictest33-21ksoftirqd/212:00:232
26773995618,10cyclictest33-21ksoftirqd/210:25:192
26771995627,4cyclictest9-21ksoftirqd/007:15:140
26771995625,6cyclictest9-21ksoftirqd/011:15:240
26771995625,6cyclictest9-21ksoftirqd/011:15:240
26771995610,3cyclictest9-21ksoftirqd/007:55:230
139391560,1ptp4l401ktimersoftd/309:46:033
26773995520,10cyclictest33-21ksoftirqd/209:00:242
26773995519,10cyclictest33-21ksoftirqd/212:30:152
26772995512,7cyclictest25-21ksoftirqd/109:24:591
2677299550,10cyclictest32539-21latency_hist08:30:011
26771995525,4cyclictest9-21ksoftirqd/012:20:250
26771995523,7cyclictest9-21ksoftirqd/008:20:000
26771995521,7cyclictest9-21ksoftirqd/012:25:140
26771995520,4cyclictest9-21ksoftirqd/008:00:200
26773995419,10cyclictest33-21ksoftirqd/207:50:162
26773995418,11cyclictest33-21ksoftirqd/209:45:192
26773995417,5cyclictest33-21ksoftirqd/208:59:532
2677299537,6cyclictest10861-21sendmail-msp10:00:011
26772995311,6cyclictest25-21ksoftirqd/110:00:151
26772995310,5cyclictest25-21ksoftirqd/109:30:241
26772995310,5cyclictest25-21ksoftirqd/107:20:251
26771995322,4cyclictest9-21ksoftirqd/011:10:200
26771995321,4cyclictest9-21ksoftirqd/012:05:200
26773995219,5cyclictest33-21ksoftirqd/210:05:142
26773995219,5cyclictest33-21ksoftirqd/208:05:162
2677299525,6cyclictest29025-21cat07:15:001
2677299520,12cyclictest22888-21sendmail12:40:001
79882510,2sleep30-21swapper/311:00:163
26773995117,5cyclictest33-21ksoftirqd/212:05:192
2677299516,6cyclictest19452-21expr11:25:121
2677299515,6cyclictest14313-21irqrtprio10:05:191
2677299515,6cyclictest12007-21sed07:45:181
2677299514,8cyclictest6221-21awk10:55:221
26772995111,7cyclictest25-21ksoftirqd/110:40:181
26772995111,5cyclictest25-21ksoftirqd/109:40:191
2677299511,11cyclictest26656-21tr09:25:121
26772995110,5cyclictest25-21ksoftirqd/112:05:201
26771995136,3cyclictest9-21ksoftirqd/012:30:240
2677299506,7cyclictest19887-21perl09:10:151
2677299505,6cyclictest23009-21cut11:30:241
2677299505,6cyclictest11011-21sed07:45:001
2677299504,6cyclictest24514-21ptp4l-jitter08:10:231
2677299504,5cyclictest19296-21latency_hist09:10:011
2677299503,6cyclictest4414-21timerwakeupswit08:35:251
26772995013,5cyclictest25-21ksoftirqd/111:20:001
26772995013,5cyclictest25-21ksoftirqd/111:20:001
26773994927,9cyclictest33-21ksoftirqd/212:15:242
26773994927,9cyclictest33-21ksoftirqd/212:15:232
2677299495,7cyclictest25109-21sed11:35:221
2677299495,6cyclictest8936-21sed11:00:251
2677299495,6cyclictest17356-21date10:10:251
2677299493,7cyclictest27617-21latency_hist10:35:001
2677299493,7cyclictest19663-21grep12:30:241
26773994816,4cyclictest33-21ksoftirqd/210:50:162
26773994814,5cyclictest33-21ksoftirqd/207:10:122
2677299486,6cyclictest22289-21sed10:20:251
2677299485,7cyclictest22829-21sed09:15:211
2677199486,4cyclictest9-21ksoftirqd/007:45:220
26773994715,4cyclictest33-21ksoftirqd/211:35:142
2677299475,7cyclictest1234-21sed10:45:201
2677299474,6cyclictest26648-21cstates11:40:131
2677299474,6cyclictest14244-21irqrtprio12:20:161
2677299473,6cyclictest19449-21cat10:15:201
2677299472,6cyclictest12215-21date08:55:001
26772994713,5cyclictest25-21ksoftirqd/109:00:211
139391470,0ptp4l401ktimersoftd/310:10:213
2677299463,5cyclictest6784-21fschecks_count07:35:161
2677299463,5cyclictest0-21swapper/111:50:191
26772994612,7cyclictest25-21ksoftirqd/111:13:071
26774994539,4cyclictest41-21ksoftirqd/311:19:593
26774994539,4cyclictest41-21ksoftirqd/311:19:593
2677299454,5cyclictest7588-21/usr/sbin/munin09:50:251
2677299451,4cyclictest0-21swapper/112:00:161
26772994514,7cyclictest25-21ksoftirqd/107:15:191
26772994513,5cyclictest25-21ksoftirqd/111:50:011
26772994513,5cyclictest25-21ksoftirqd/111:50:001
26772994512,5cyclictest25-21ksoftirqd/108:15:101
26772994511,5cyclictest25-21ksoftirqd/110:50:201
26772994511,5cyclictest25-21ksoftirqd/108:20:261
2677499446,5cyclictest41-21ksoftirqd/312:00:283
26773994416,5cyclictest33-21ksoftirqd/210:45:242
26772994411,6cyclictest25-21ksoftirqd/108:30:161
2677299441,16cyclictest22368-21timerandwakeup08:05:251
139391440,0ptp4l401ktimersoftd/311:30:413
139391440,0ptp4l401ktimersoftd/307:29:473
26774994337,4cyclictest20250-21cron12:35:003
26774994311,4cyclictest41-21ksoftirqd/310:05:003
2677299434,7cyclictest13819-21cat08:55:251
2677299434,6cyclictest3212-21timerwakeupswit07:25:271
26774994236,3cyclictest41-21ksoftirqd/311:40:003
2677299424,5cyclictest241ktimersoftd/110:25:251
139391420,0ptp4l401ktimersoftd/311:47:023
139391420,0ptp4l401ktimersoftd/311:47:023
139391420,0ptp4l401ktimersoftd/308:46:053
139391420,0ptp4l401ktimersoftd/308:46:053
139391420,0ptp4l401ktimersoftd/307:50:013
26774994136,3cyclictest41-21ksoftirqd/308:35:003
2677499410,5cyclictest0-21swapper/309:55:003
139391410,0ptp4l401ktimersoftd/308:08:073
2677299405,5cyclictest8601-21/usr/sbin/munin12:10:121
26774993933,3cyclictest41-21ksoftirqd/309:10:003
2677299394,7cyclictest19792-21/usr/sbin/munin08:00:221
2677299390,6cyclictest17509-21if_enp1s011:20:141
139391390,0ptp4l401ktimersoftd/311:50:213
26772993832,4cyclictest25-21ksoftirqd/112:28:581
26772993816,6cyclictest25-21ksoftirqd/112:19:311
26772993816,6cyclictest25-21ksoftirqd/112:19:311
2677299380,6cyclictest241ktimersoftd/111:55:161
2677499375,4cyclictest41-21ksoftirqd/311:10:123
2677499375,3cyclictest20497-21kworker/3:208:55:203
26774993732,3cyclictest41-21ksoftirqd/310:20:183
26774993732,3cyclictest41-21ksoftirqd/308:20:243
26774993732,2cyclictest41-21ksoftirqd/312:30:003
2677299375,7cyclictest13716-21dpkg07:50:111
2677499364,3cyclictest121rcu_preempt10:05:133
26774993632,2cyclictest41-21ksoftirqd/307:30:183
26774993631,3cyclictest41-21ksoftirqd/312:20:013
26774993631,3cyclictest41-21ksoftirqd/312:20:003
26774993631,3cyclictest41-21ksoftirqd/310:50:183
26774993630,4cyclictest41-21ksoftirqd/312:24:113
26774993630,4cyclictest41-21ksoftirqd/311:42:563
26774993630,4cyclictest41-21ksoftirqd/311:25:463
26774993630,4cyclictest41-21ksoftirqd/311:23:023
26774993630,4cyclictest41-21ksoftirqd/310:39:053
26774993630,4cyclictest41-21ksoftirqd/309:10:403
26774993630,4cyclictest41-21ksoftirqd/308:36:103
26774993630,4cyclictest41-21ksoftirqd/307:17:123
26774993630,3cyclictest41-21ksoftirqd/311:10:003
2677499361,5cyclictest121rcu_preempt08:15:003
2677499361,2cyclictest0-21swapper/308:15:223
2677499360,2cyclictest0-21swapper/312:05:143
2677499360,2cyclictest0-21swapper/310:15:193
2677299366,5cyclictest17375-21/usr/sbin/munin07:55:241
139391360,1ptp4l401ktimersoftd/307:24:583
57898350,1rtkit-daemon0-21swapper/109:37:301
2677499354,3cyclictest41-21ksoftirqd/309:25:013
2677499353,3cyclictest121rcu_preempt10:55:243
26774993531,2cyclictest41-21ksoftirqd/308:00:003
26774993530,2cyclictest41-21ksoftirqd/309:25:203
26774993529,4cyclictest41-21ksoftirqd/309:57:383
26774993526,3cyclictest41-21ksoftirqd/309:30:243
2677499351,2cyclictest121rcu_preempt08:25:263
2677499351,14cyclictest0-21swapper/311:55:113
2677499350,2cyclictest0-21swapper/310:40:283
2677499350,2cyclictest0-21swapper/309:15:143
2677499350,2cyclictest0-21swapper/308:40:163
2677499350,2cyclictest0-21swapper/307:45:233
26774993429,3cyclictest41-21ksoftirqd/308:00:173
26774993429,3cyclictest41-21ksoftirqd/307:35:053
26774993426,6cyclictest41-21ksoftirqd/309:05:003
26774993422,3cyclictest41-21ksoftirqd/310:25:283
2677499341,2cyclictest0-21swapper/307:45:003
2677499340,7cyclictest41-21ksoftirqd/307:10:223
2677499340,2cyclictest0-21swapper/312:35:203
26772993420,4cyclictest25-21ksoftirqd/110:39:251
26774993329,3cyclictest41-21ksoftirqd/309:40:113
26774993328,3cyclictest41-21ksoftirqd/312:11:303
26774993328,3cyclictest41-21ksoftirqd/310:48:253
26774993328,3cyclictest41-21ksoftirqd/310:30:123
26774993327,4cyclictest41-21ksoftirqd/308:53:353
2677499331,2cyclictest0-21swapper/309:35:133
26772993126,3cyclictest25-21ksoftirqd/109:45:091
43012300,2sleep10-21swapper/107:30:131
2677299300,5cyclictest0-21swapper/108:40:261
26772992923,3cyclictest25-21ksoftirqd/111:09:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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