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2026-08-03 - 15:32
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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 Mon Aug 03, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/307:06:543
39722203170,21sleep00-21swapper/007:07:320
38952203167,24sleep10-21swapper/107:06:341
40782201168,22sleep20-21swapper/207:08:552
275052750,3sleep227509-21irqrtprio10:05:182
275052750,3sleep227509-21irqrtprio10:05:182
4463996431,8cyclictest25-21ksoftirqd/109:20:221
4463996428,10cyclictest25-21ksoftirqd/112:20:121
4463996330,6cyclictest25-21ksoftirqd/110:50:191
4463996327,5cyclictest25-21ksoftirqd/110:10:131
4463996128,8cyclictest25-21ksoftirqd/107:40:231
4463996128,8cyclictest25-21ksoftirqd/107:40:231
4463996126,7cyclictest25-21ksoftirqd/109:00:201
4463996123,8cyclictest25-21ksoftirqd/107:30:251
303042610,2sleep230302-21tr11:15:192
4464996026,5cyclictest33-21ksoftirqd/208:55:182
4463996031,4cyclictest25-21ksoftirqd/109:10:221
4463996029,8cyclictest25-21ksoftirqd/111:12:591
4463996029,7cyclictest25-21ksoftirqd/112:10:151
4463996027,9cyclictest25-21ksoftirqd/109:40:161
4463996019,4cyclictest25-21ksoftirqd/108:35:221
4463995928,8cyclictest25-21ksoftirqd/108:05:231
4463995926,4cyclictest25-21ksoftirqd/110:35:161
4463995925,4cyclictest25-21ksoftirqd/110:20:131
4463995922,8cyclictest25-21ksoftirqd/107:20:181
4463995922,5cyclictest25-21ksoftirqd/111:40:251
4463995828,9cyclictest25-21ksoftirqd/112:05:141
4463995828,8cyclictest25-21ksoftirqd/112:15:141
4463995826,7cyclictest25-21ksoftirqd/110:25:231
4463995824,7cyclictest25-21ksoftirqd/110:55:261
4463995822,7cyclictest25-21ksoftirqd/111:30:091
4463995822,7cyclictest25-21ksoftirqd/111:30:091
4463995725,7cyclictest25-21ksoftirqd/112:00:201
4463995725,7cyclictest25-21ksoftirqd/109:50:241
4463995725,6cyclictest25-21ksoftirqd/107:50:271
4463995722,7cyclictest25-21ksoftirqd/108:20:261
4463995721,7cyclictest25-21ksoftirqd/109:05:181
4463995720,9cyclictest25-21ksoftirqd/109:45:251
4463995718,4cyclictest25-21ksoftirqd/108:25:211
4463995618,4cyclictest25-21ksoftirqd/111:50:241
138491560,1ptp4l401ktimersoftd/311:07:133
446399556,8cyclictest25-21ksoftirqd/108:30:221
446399555,8cyclictest25-21ksoftirqd/112:30:141
446399555,7cyclictest25-21ksoftirqd/108:10:191
4463995525,8cyclictest25-21ksoftirqd/112:35:131
4463995524,8cyclictest25-21ksoftirqd/109:25:111
4463995523,7cyclictest25-21ksoftirqd/111:35:141
4463995521,8cyclictest25-21ksoftirqd/111:25:161
4463995517,7cyclictest25-21ksoftirqd/111:47:261
446399545,8cyclictest25-21ksoftirqd/110:45:161
446399545,7cyclictest25-21ksoftirqd/111:20:161
446399545,7cyclictest25-21ksoftirqd/107:35:171
446399544,7cyclictest25-21ksoftirqd/109:15:271
285082540,5sleep30-21swapper/312:15:253
446399536,7cyclictest6646-21apt08:20:011
446399536,7cyclictest25-21ksoftirqd/110:15:221
446399535,7cyclictest25-21ksoftirqd/108:55:181
446399535,7cyclictest25-21ksoftirqd/108:50:211
446399535,7cyclictest25-21ksoftirqd/107:55:301
446399534,7cyclictest25-21ksoftirqd/111:05:171
446399534,7cyclictest25-21ksoftirqd/108:40:171
446399534,7cyclictest25-21ksoftirqd/108:40:171
446399534,7cyclictest25-21ksoftirqd/107:10:151
446399534,10cyclictest25-21ksoftirqd/111:15:191
4463995323,9cyclictest25-21ksoftirqd/111:55:131
4463995319,4cyclictest25-21ksoftirqd/109:35:121
4463995317,4cyclictest25-21ksoftirqd/110:09:381
4463995317,4cyclictest25-21ksoftirqd/110:09:381
4463995317,4cyclictest25-21ksoftirqd/109:55:501
446399525,7cyclictest25-21ksoftirqd/110:00:261
446399524,8cyclictest25-21ksoftirqd/110:40:171
446399524,7cyclictest25-21ksoftirqd/107:25:251
446399524,7cyclictest25-21ksoftirqd/107:15:141
446399523,8cyclictest25-21ksoftirqd/107:45:211
4463995221,8cyclictest25-21ksoftirqd/112:25:171
4463995218,4cyclictest25-21ksoftirqd/108:49:531
446399515,9cyclictest25-21ksoftirqd/109:30:171
446399515,4cyclictest25-21ksoftirqd/108:00:181
446399512,8cyclictest25-21ksoftirqd/110:30:171
4463995120,7cyclictest25-21ksoftirqd/111:00:231
174762490,2sleep30-21swapper/308:40:183
174762490,2sleep30-21swapper/308:40:183
1385914934,8phc2sys0-21swapper/307:10:013
446599474,7cyclictest121rcu_preempt10:20:193
4464994639,4cyclictest33-21ksoftirqd/207:30:002
169352460,3sleep20-21swapper/208:40:142
169352460,3sleep20-21swapper/208:40:142
54042450,1sleep20-21swapper/209:20:222
446599453,3cyclictest121rcu_preempt10:10:013
446599453,3cyclictest121rcu_preempt10:10:013
4465994531,12cyclictest41-21ksoftirqd/309:05:003
4462994533,4cyclictest9-21ksoftirqd/012:00:000
4462994418,7cyclictest9-21ksoftirqd/008:45:010
4462994418,7cyclictest9-21ksoftirqd/008:45:010
138491440,0ptp4l401ktimersoftd/310:40:043
4462994338,3cyclictest9-21ksoftirqd/012:40:000
138491430,0ptp4l401ktimersoftd/311:45:173
138491430,0ptp4l401ktimersoftd/309:55:223
138491430,0ptp4l401ktimersoftd/308:22:233
446499421,3cyclictest33-21ksoftirqd/208:00:192
4462994234,5cyclictest9-21ksoftirqd/009:20:110
135191420,2getstats0-21swapper/312:35:043
4464994129,3cyclictest33-21ksoftirqd/211:05:152
4462994136,3cyclictest9-21ksoftirqd/008:40:010
4462994136,3cyclictest9-21ksoftirqd/007:19:590
4462994119,10cyclictest9-21ksoftirqd/009:45:190
138491410,1ptp4l401ktimersoftd/311:01:133
4465994031,6cyclictest41-21ksoftirqd/307:39:593
4464994034,4cyclictest16547-21cron07:35:002
446499400,6cyclictest121rcu_preempt11:45:132
446499400,2cyclictest121rcu_preempt07:20:192
4462994025,6cyclictest9-21ksoftirqd/009:55:190
4462994025,5cyclictest9-21ksoftirqd/012:10:000
4462994025,5cyclictest9-21ksoftirqd/010:40:200
4462994023,8cyclictest9-21ksoftirqd/011:00:000
4462994020,9cyclictest9-21ksoftirqd/009:15:170
4465993921,7cyclictest41-21ksoftirqd/307:20:003
446499393,5cyclictest33-21ksoftirqd/212:00:002
4464993934,3cyclictest33-21ksoftirqd/210:25:012
4464993924,4cyclictest33-21ksoftirqd/212:25:002
446299392,5cyclictest121rcu_preempt11:40:000
4462993925,5cyclictest9-21ksoftirqd/010:25:010
4462993914,7cyclictest9-21ksoftirqd/008:00:150
138491390,0ptp4l401ktimersoftd/311:35:193
446599383,3cyclictest121rcu_preempt12:05:163
4465993827,10cyclictest41-21ksoftirqd/309:15:273
4464993833,3cyclictest33-21ksoftirqd/208:55:012
446499382,3cyclictest121rcu_preempt09:10:142
446499380,2cyclictest121rcu_preempt09:35:012
4462993833,3cyclictest9-21ksoftirqd/008:00:010
4462993825,4cyclictest9-21ksoftirqd/011:05:180
4462993821,8cyclictest9-21ksoftirqd/007:10:130
4462993817,8cyclictest9-21ksoftirqd/010:05:180
4462993817,8cyclictest9-21ksoftirqd/010:05:180
4465993731,4cyclictest41-21ksoftirqd/309:48:303
4465993731,3cyclictest41-21ksoftirqd/312:20:183
4465993730,5cyclictest41-21ksoftirqd/308:53:473
4465993720,5cyclictest41-21ksoftirqd/311:25:133
4464993733,3cyclictest33-21ksoftirqd/209:19:592
4464993732,3cyclictest33-21ksoftirqd/207:17:272
4464993731,4cyclictest33-21ksoftirqd/210:34:072
4464993731,3cyclictest33-21ksoftirqd/211:25:012
4462993733,2cyclictest9-21ksoftirqd/010:35:010
4462993732,3cyclictest9-21ksoftirqd/009:55:000
4462993731,4cyclictest9-21ksoftirqd/009:38:250
4462993724,5cyclictest9-21ksoftirqd/011:50:180
4462993721,6cyclictest9-21ksoftirqd/007:45:010
4462993721,6cyclictest9-21ksoftirqd/007:45:010
4465993632,2cyclictest41-21ksoftirqd/308:39:593
4465993631,3cyclictest41-21ksoftirqd/311:45:013
4465993630,4cyclictest41-21ksoftirqd/310:17:553
4465993620,7cyclictest41-21ksoftirqd/309:15:003
4465993616,13cyclictest41-21ksoftirqd/309:25:243
446599360,3cyclictest121rcu_preempt09:35:133
4464993631,3cyclictest33-21ksoftirqd/208:15:002
4464993630,4cyclictest33-21ksoftirqd/208:30:002
4464993630,4cyclictest33-21ksoftirqd/207:49:112
446499361,6cyclictest121rcu_preempt11:30:212
446499361,6cyclictest121rcu_preempt11:30:212
446499361,3cyclictest121rcu_preempt10:40:192
446499360,3cyclictest121rcu_preempt12:40:002
446299363,2cyclictest121rcu_preempt10:04:040
4462993632,2cyclictest9-21ksoftirqd/012:05:000
4462993630,4cyclictest9-21ksoftirqd/009:09:030
4462993630,4cyclictest9-21ksoftirqd/007:37:370
4462993629,4cyclictest9-21ksoftirqd/011:25:390
446299362,5cyclictest0-21swapper/012:15:160
4462993623,5cyclictest9-21ksoftirqd/008:55:010
4462993623,4cyclictest9-21ksoftirqd/011:40:250
4462993622,6cyclictest9-21ksoftirqd/010:50:140
4462993622,6cyclictest9-21ksoftirqd/007:25:000
4462993618,7cyclictest9-21ksoftirqd/008:30:170
4465993531,2cyclictest41-21ksoftirqd/310:40:003
4465993530,3cyclictest41-21ksoftirqd/308:10:133
4465993530,3cyclictest41-21ksoftirqd/307:43:293
4465993530,3cyclictest41-21ksoftirqd/307:43:293
4465993530,2cyclictest41-21ksoftirqd/308:50:003
4465993529,4cyclictest41-21ksoftirqd/310:57:103
4465993529,4cyclictest41-21ksoftirqd/308:15:563
4465993529,4cyclictest41-21ksoftirqd/307:59:033
446499354,2cyclictest121rcu_preempt08:30:202
446499353,7cyclictest121rcu_preempt09:10:002
4464993531,2cyclictest33-21ksoftirqd/209:40:012
4464993530,3cyclictest33-21ksoftirqd/212:09:592
4464993530,3cyclictest33-21ksoftirqd/209:04:592
4464993530,3cyclictest33-21ksoftirqd/208:20:112
4464993530,3cyclictest33-21ksoftirqd/207:10:182
4464993529,4cyclictest33-21ksoftirqd/210:11:032
446499352,4cyclictest33-21ksoftirqd/207:40:222
446499352,4cyclictest33-21ksoftirqd/207:40:222
4462993531,2cyclictest9-21ksoftirqd/009:00:130
4462993530,3cyclictest9-21ksoftirqd/009:30:140
4462993530,3cyclictest9-21ksoftirqd/007:55:010
4462993529,4cyclictest9-21ksoftirqd/007:46:440
4462993520,7cyclictest9-21ksoftirqd/008:20:130
4462993519,5cyclictest9-21ksoftirqd/008:15:260
4462993518,7cyclictest9-21ksoftirqd/011:30:170
4462993518,7cyclictest9-21ksoftirqd/011:30:170
446299351,6cyclictest121rcu_preempt09:14:590
138491350,0ptp4l401ktimersoftd/307:30:253
4465993429,3cyclictest41-21ksoftirqd/311:35:003
4465993429,3cyclictest41-21ksoftirqd/311:35:003
4465993429,3cyclictest41-21ksoftirqd/310:25:013
4465993429,3cyclictest41-21ksoftirqd/309:10:013
4465993429,3cyclictest41-21ksoftirqd/308:05:143
4465993428,4cyclictest41-21ksoftirqd/308:02:123
4465993423,5cyclictest41-21ksoftirqd/310:10:123
4465993419,6cyclictest41-21ksoftirqd/312:30:003
4465993418,7cyclictest41-21ksoftirqd/309:45:003
446499344,7cyclictest33-21ksoftirqd/210:00:122
4464993430,3cyclictest33-21ksoftirqd/208:35:172
4464993430,2cyclictest33-21ksoftirqd/210:50:202
4464993430,2cyclictest16805-21latency_hist10:50:002
4464993429,3cyclictest33-21ksoftirqd/211:13:152
4464993428,4cyclictest33-21ksoftirqd/212:14:542
4464993428,4cyclictest33-21ksoftirqd/208:15:092
4464993428,4cyclictest33-21ksoftirqd/208:05:352
4464993421,11cyclictest33-21ksoftirqd/207:50:282
446499341,5cyclictest33-21ksoftirqd/209:40:252
446499340,7cyclictest121rcu_preempt10:15:152
446499340,6cyclictest33-21ksoftirqd/210:55:272
446499340,3cyclictest121rcu_preempt09:25:202
4462993429,3cyclictest9-21ksoftirqd/012:28:460
4462993429,3cyclictest9-21ksoftirqd/010:25:130
4462993429,3cyclictest9-21ksoftirqd/008:10:190
4462993420,6cyclictest9-21ksoftirqd/008:05:190
4462993416,8cyclictest9-21ksoftirqd/011:15:270
446299340,4cyclictest0-21swapper/010:10:130
4465993328,3cyclictest41-21ksoftirqd/311:55:013
4465993328,3cyclictest41-21ksoftirqd/311:10:193
4465993328,3cyclictest41-21ksoftirqd/310:54:593
4465993328,3cyclictest41-21ksoftirqd/310:00:193
4465993328,3cyclictest41-21ksoftirqd/309:30:183
4465993328,3cyclictest41-21ksoftirqd/309:00:003
4465993328,3cyclictest41-21ksoftirqd/307:27:543
4465993327,4cyclictest41-21ksoftirqd/312:11:333
4465993327,4cyclictest41-21ksoftirqd/310:31:103
4465993318,3cyclictest41-21ksoftirqd/309:50:163
4465993316,7cyclictest41-21ksoftirqd/307:50:253
4464993328,3cyclictest33-21ksoftirqd/212:30:342
4464993328,3cyclictest33-21ksoftirqd/212:25:192
4464993328,3cyclictest33-21ksoftirqd/211:00:202
4464993328,3cyclictest33-21ksoftirqd/210:25:142
4464993327,4cyclictest33-21ksoftirqd/211:28:062
446499330,3cyclictest121rcu_preempt10:35:272
4462993329,2cyclictest9-21ksoftirqd/012:30:260
4462993328,3cyclictest9-21ksoftirqd/011:11:160
4462993328,3cyclictest9-21ksoftirqd/009:25:470
4462993327,4cyclictest9-21ksoftirqd/008:59:530
4462993327,3cyclictest9-21ksoftirqd/012:20:130
4462993318,5cyclictest9-21ksoftirqd/009:40:140
4462993315,8cyclictest9-21ksoftirqd/011:00:200
4465993227,3cyclictest41-21ksoftirqd/312:00:003
4465993226,4cyclictest41-21ksoftirqd/308:32:563
4465993226,4cyclictest41-21ksoftirqd/307:23:363
4465993221,9cyclictest41-21ksoftirqd/308:25:243
4464993228,3cyclictest33-21ksoftirqd/211:50:242
4464993227,3cyclictest33-21ksoftirqd/209:45:192
4464993227,3cyclictest33-21ksoftirqd/207:40:002
4464993226,4cyclictest33-21ksoftirqd/209:52:102
446499322,3cyclictest121rcu_preempt11:40:252
446499321,3cyclictest121rcu_preempt09:55:132
446499320,3cyclictest121rcu_preempt07:55:272
4462993227,3cyclictest9-21ksoftirqd/012:10:140
4462993227,3cyclictest9-21ksoftirqd/011:47:380
4462993216,5cyclictest9-21ksoftirqd/010:45:250
4462993215,9cyclictest9-21ksoftirqd/008:25:190
4465993126,3cyclictest41-21ksoftirqd/312:00:323
4465993126,3cyclictest41-21ksoftirqd/307:49:593
4465993126,2cyclictest41-21ksoftirqd/309:20:173
4464993126,3cyclictest33-21ksoftirqd/212:00:172
4464993125,4cyclictest33-21ksoftirqd/208:45:152
4462993123,5cyclictest9-21ksoftirqd/010:35:300
4462993115,7cyclictest9-21ksoftirqd/011:20:160
446299311,4cyclictest9-21ksoftirqd/007:30:280
446299311,4cyclictest20516-21proc_pri08:45:260
4465993025,3cyclictest41-21ksoftirqd/311:15:113
4465993016,6cyclictest41-21ksoftirqd/311:20:213
4464993025,3cyclictest33-21ksoftirqd/211:35:232
4464993023,5cyclictest33-21ksoftirqd/212:17:042
4462993024,4cyclictest9-21ksoftirqd/007:28:220
4462993014,8cyclictest9-21ksoftirqd/010:15:130
4465992915,6cyclictest41-21ksoftirqd/310:45:233
4465992721,4cyclictest41-21ksoftirqd/312:34:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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