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2026-09-02 - 19:32
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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 rackdslot2.osadl.org (updated Wed Sep 02, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591236169,22phc2sys0-21swapper/307:07:503
282162206173,22sleep20-21swapper/207:07:342
283242205172,22sleep00-21swapper/007:08:530
261192204171,22sleep10-21swapper/107:05:011
135291690,6getstats2870599cyclictest10:42:383
139291650,0ptp4l401ktimersoftd/308:50:233
139291640,1ptp4l401ktimersoftd/309:10:153
28704996122,3cyclictest33-21ksoftirqd/212:30:282
139291560,1ptp4l391rcuc/312:33:273
268782540,4sleep026880-21df_abs09:20:150
247262540,2sleep20-21swapper/208:05:272
2870299503,4cyclictest9-21ksoftirqd/009:55:280
2840925034,8sleep20-21swapper/207:10:002
28704994721,3cyclictest33-21ksoftirqd/211:15:202
28704994638,4cyclictest27425-21turbostat10:30:002
2870499457,6cyclictest33-21ksoftirqd/211:40:002
28704994534,10cyclictest33-21ksoftirqd/211:40:272
28704994511,6cyclictest33-21ksoftirqd/212:25:152
2870499444,3cyclictest33-21ksoftirqd/208:25:262
28704994414,4cyclictest33-21ksoftirqd/208:40:132
139291440,0ptp4l401ktimersoftd/312:25:013
2870499435,7cyclictest33-21ksoftirqd/208:50:192
2870499432,3cyclictest121rcu_preempt08:30:202
28704994311,6cyclictest33-21ksoftirqd/212:20:002
28704994310,4cyclictest33-21ksoftirqd/207:40:242
28704994310,4cyclictest33-21ksoftirqd/207:40:242
2870499430,2cyclictest121rcu_preempt10:20:012
2870499430,2cyclictest121rcu_preempt10:20:012
139291430,0ptp4l401ktimersoftd/309:55:183
139291430,0ptp4l401ktimersoftd/308:48:413
139291430,0ptp4l401ktimersoftd/308:48:413
2870499424,3cyclictest33-21ksoftirqd/209:55:262
2870499423,3cyclictest33-21ksoftirqd/209:45:262
2870499423,3cyclictest33-21ksoftirqd/209:45:262
2870499421,3cyclictest121rcu_preempt10:05:262
139291420,0ptp4l401ktimersoftd/312:11:223
139291420,0ptp4l401ktimersoftd/308:15:233
2870499416,7cyclictest33-21ksoftirqd/210:10:232
28704994128,10cyclictest33-21ksoftirqd/207:15:262
28704994111,3cyclictest33-21ksoftirqd/211:25:202
28703994134,4cyclictest9512-21cron11:00:001
2870399412,3cyclictest121rcu_preempt10:25:001
2870499405,7cyclictest33-21ksoftirqd/212:10:242
2870499405,3cyclictest121rcu_preempt12:25:002
28704994035,3cyclictest33-21ksoftirqd/207:40:002
28704994034,3cyclictest33-21ksoftirqd/210:00:122
28704994010,7cyclictest33-21ksoftirqd/209:25:272
28704994010,3cyclictest33-21ksoftirqd/209:50:162
28703994034,3cyclictest25-21ksoftirqd/108:35:011
28702994025,6cyclictest9-21ksoftirqd/011:35:190
2870499399,6cyclictest33-21ksoftirqd/207:30:212
2870499397,3cyclictest33-21ksoftirqd/208:35:152
2870499396,6cyclictest33-21ksoftirqd/211:10:192
2870499396,6cyclictest33-21ksoftirqd/211:00:212
2870499395,3cyclictest121rcu_preempt09:35:182
28704993933,3cyclictest33-21ksoftirqd/212:00:182
28704993932,4cyclictest33-21ksoftirqd/208:01:272
2870499392,3cyclictest33-21ksoftirqd/209:40:242
28704993923,5cyclictest33-21ksoftirqd/208:20:002
28704993910,7cyclictest33-21ksoftirqd/209:30:142
2870399395,3cyclictest121rcu_preempt07:58:571
2870399391,4cyclictest25-21ksoftirqd/111:00:261
2870399390,4cyclictest25-21ksoftirqd/110:15:271
2870399390,4cyclictest25-21ksoftirqd/110:15:271
28702993934,3cyclictest9-21ksoftirqd/010:30:000
28702993924,6cyclictest9-21ksoftirqd/007:30:260
28702993924,5cyclictest9-21ksoftirqd/011:05:220
28702993923,6cyclictest9-21ksoftirqd/011:45:250
28702993923,5cyclictest9-21ksoftirqd/008:20:250
28702993922,6cyclictest9-21ksoftirqd/009:00:220
139291390,0ptp4l401ktimersoftd/311:40:193
139291390,0ptp4l401ktimersoftd/307:21:293
28705993832,4cyclictest41-21ksoftirqd/311:55:313
28705993832,4cyclictest41-21ksoftirqd/307:44:303
28705993832,4cyclictest41-21ksoftirqd/307:44:303
2870499387,3cyclictest33-21ksoftirqd/210:50:242
28704993833,3cyclictest33-21ksoftirqd/209:14:592
28704993833,2cyclictest33-21ksoftirqd/211:00:002
28704993832,3cyclictest33-21ksoftirqd/207:55:252
28704993824,11cyclictest33-21ksoftirqd/211:35:012
2870499382,3cyclictest33-21ksoftirqd/209:05:132
2870499381,10cyclictest33-21ksoftirqd/212:35:272
28703993832,3cyclictest25-21ksoftirqd/108:25:211
2870399381,3cyclictest121rcu_preempt09:13:121
28702993834,2cyclictest9-21ksoftirqd/011:30:000
28702993834,2cyclictest9-21ksoftirqd/011:20:000
28702993834,2cyclictest9-21ksoftirqd/009:45:000
28702993833,3cyclictest9-21ksoftirqd/007:55:010
28702993832,4cyclictest9-21ksoftirqd/010:36:370
28702993824,5cyclictest9-21ksoftirqd/010:00:180
28702993824,5cyclictest9-21ksoftirqd/008:45:150
28702993824,5cyclictest9-21ksoftirqd/008:45:140
28705993732,3cyclictest41-21ksoftirqd/309:38:043
28705993732,3cyclictest41-21ksoftirqd/308:26:223
28705993731,4cyclictest41-21ksoftirqd/311:38:583
28705993731,4cyclictest41-21ksoftirqd/311:24:183
28705993731,4cyclictest41-21ksoftirqd/310:08:443
2870499376,3cyclictest33-21ksoftirqd/209:16:592
2870499375,3cyclictest121rcu_preempt09:00:282
28704993733,2cyclictest33-21ksoftirqd/210:20:192
28704993732,3cyclictest33-21ksoftirqd/211:50:212
28704993732,3cyclictest33-21ksoftirqd/210:45:242
28704993732,3cyclictest33-21ksoftirqd/210:40:002
28704993731,4cyclictest33-21ksoftirqd/211:47:292
28704993731,3cyclictest33-21ksoftirqd/211:25:002
28704993731,3cyclictest33-21ksoftirqd/211:05:122
28704993731,3cyclictest33-21ksoftirqd/207:45:292
28704993730,4cyclictest33-21ksoftirqd/210:41:092
2870499371,3cyclictest121rcu_preempt07:50:152
28703993733,2cyclictest25-21ksoftirqd/112:05:001
28703993733,2cyclictest25-21ksoftirqd/108:20:201
28703993732,3cyclictest25-21ksoftirqd/112:20:251
28703993732,3cyclictest25-21ksoftirqd/111:50:111
28703993731,4cyclictest25-21ksoftirqd/108:40:441
28703993731,4cyclictest25-21ksoftirqd/107:38:231
28703993731,3cyclictest25-21ksoftirqd/109:10:001
28703993731,3cyclictest25-21ksoftirqd/107:45:001
28703993731,3cyclictest25-21ksoftirqd/107:45:001
28703993730,4cyclictest25-21ksoftirqd/110:31:531
2870399371,3cyclictest121rcu_preempt11:35:131
2870399371,3cyclictest121rcu_preempt08:05:001
28702993733,3cyclictest9-21ksoftirqd/009:00:010
28702993732,3cyclictest9-21ksoftirqd/011:10:240
28702993731,4cyclictest9-21ksoftirqd/008:54:160
28702993730,4cyclictest9-21ksoftirqd/008:31:120
28702993725,5cyclictest9-21ksoftirqd/007:35:260
28702993724,4cyclictest9-21ksoftirqd/010:20:270
28702993723,5cyclictest9-21ksoftirqd/012:25:150
28702993723,5cyclictest9-21ksoftirqd/010:40:190
28702993723,5cyclictest9-21ksoftirqd/008:00:250
28702993720,5cyclictest9-21ksoftirqd/007:20:240
28705993632,3cyclictest41-21ksoftirqd/309:28:513
28705993631,3cyclictest41-21ksoftirqd/307:57:423
28705993630,4cyclictest41-21ksoftirqd/312:38:563
28705993630,4cyclictest41-21ksoftirqd/312:19:023
28705993630,4cyclictest41-21ksoftirqd/312:09:233
28705993630,4cyclictest41-21ksoftirqd/311:09:583
28705993630,4cyclictest41-21ksoftirqd/310:51:303
28705993630,4cyclictest41-21ksoftirqd/310:27:013
28705993630,4cyclictest41-21ksoftirqd/310:12:453
28705993630,4cyclictest41-21ksoftirqd/309:48:073
28705993630,4cyclictest41-21ksoftirqd/309:48:073
28705993630,4cyclictest41-21ksoftirqd/308:57:593
28705993630,4cyclictest41-21ksoftirqd/307:10:413
2870499365,4cyclictest33-21ksoftirqd/208:10:132
2870499364,6cyclictest33-21ksoftirqd/209:20:272
2870499364,6cyclictest121rcu_preempt08:55:162
28704993630,3cyclictest33-21ksoftirqd/207:30:002
28703993632,2cyclictest25-21ksoftirqd/112:20:001
28703993632,2cyclictest25-21ksoftirqd/111:25:281
28703993631,3cyclictest25-21ksoftirqd/108:05:131
28703993631,3cyclictest25-21ksoftirqd/107:20:011
28703993630,4cyclictest25-21ksoftirqd/112:06:201
28703993630,4cyclictest25-21ksoftirqd/107:31:251
28703993630,3cyclictest25-21ksoftirqd/109:45:201
28703993630,3cyclictest25-21ksoftirqd/109:45:191
2870399361,7cyclictest25-21ksoftirqd/111:05:131
28702993631,3cyclictest9-21ksoftirqd/008:15:260
28702993631,3cyclictest9-21ksoftirqd/007:15:190
28702993631,2cyclictest9-21ksoftirqd/011:40:240
28702993630,4cyclictest9-21ksoftirqd/008:10:110
28702993630,4cyclictest9-21ksoftirqd/007:49:450
28702993630,3cyclictest9-21ksoftirqd/012:20:260
28702993630,3cyclictest9-21ksoftirqd/010:05:240
28702993629,4cyclictest9-21ksoftirqd/008:28:040
28702993629,4cyclictest9-21ksoftirqd/008:09:110
28702993624,5cyclictest9-21ksoftirqd/009:15:240
28702993623,5cyclictest9-21ksoftirqd/012:10:240
28702993623,5cyclictest9-21ksoftirqd/008:40:210
28702993622,6cyclictest9-21ksoftirqd/011:55:170
28702993621,6cyclictest9-21ksoftirqd/009:25:240
28702993621,5cyclictest9-21ksoftirqd/010:30:170
139291360,1ptp4l401ktimersoftd/307:31:373
28705993530,3cyclictest41-21ksoftirqd/309:17:343
28705993530,3cyclictest41-21ksoftirqd/309:05:253
28705993530,3cyclictest41-21ksoftirqd/307:51:213
28705993529,4cyclictest41-21ksoftirqd/311:12:513
28705993529,4cyclictest41-21ksoftirqd/309:01:443
28705993529,4cyclictest41-21ksoftirqd/308:22:463
2870499354,3cyclictest121rcu_preempt11:55:242
28704993530,3cyclictest33-21ksoftirqd/208:25:002
28703993531,2cyclictest25-21ksoftirqd/110:55:011
28703993531,2cyclictest25-21ksoftirqd/108:10:131
28703993530,3cyclictest25-21ksoftirqd/110:10:001
28703993529,4cyclictest25-21ksoftirqd/110:48:541
28703993529,3cyclictest25-21ksoftirqd/107:30:011
28703993519,7cyclictest25-21ksoftirqd/110:35:221
28702993530,3cyclictest9-21ksoftirqd/011:30:180
28702993530,3cyclictest9-21ksoftirqd/008:35:140
28702993530,3cyclictest9-21ksoftirqd/007:15:000
28702993529,4cyclictest9-21ksoftirqd/011:54:240
28702993529,3cyclictest9-21ksoftirqd/012:05:000
28702993523,5cyclictest9-21ksoftirqd/012:35:160
28702993522,5cyclictest9-21ksoftirqd/010:55:240
28702993522,5cyclictest9-21ksoftirqd/007:55:200
28702993521,5cyclictest9-21ksoftirqd/009:50:150
28702993520,6cyclictest9-21ksoftirqd/009:30:150
28705993429,3cyclictest41-21ksoftirqd/311:34:133
28705993429,3cyclictest41-21ksoftirqd/311:28:073
28705993429,3cyclictest41-21ksoftirqd/310:22:373
28705993429,3cyclictest41-21ksoftirqd/309:52:213
28705993429,3cyclictest41-21ksoftirqd/309:31:103
28705993428,4cyclictest41-21ksoftirqd/312:04:463
28705993428,4cyclictest41-21ksoftirqd/311:16:363
28705993428,4cyclictest41-21ksoftirqd/309:40:123
28705993428,4cyclictest41-21ksoftirqd/308:10:533
28704993430,2cyclictest33-21ksoftirqd/207:20:162
28704993429,3cyclictest33-21ksoftirqd/210:35:002
28704993429,3cyclictest33-21ksoftirqd/208:45:122
28704993429,3cyclictest33-21ksoftirqd/208:45:112
28703993430,2cyclictest25-21ksoftirqd/108:55:201
28703993429,3cyclictest25-21ksoftirqd/111:20:201
28703993429,3cyclictest25-21ksoftirqd/108:50:261
28703993429,2cyclictest25-21ksoftirqd/111:50:001
28703993428,4cyclictest25-21ksoftirqd/111:16:221
28703993428,4cyclictest25-21ksoftirqd/109:34:531
28703993428,4cyclictest25-21ksoftirqd/107:50:581
28703993428,3cyclictest25-21ksoftirqd/107:15:011
2870399342,3cyclictest121rcu_preempt09:15:251
28703993420,4cyclictest25-21ksoftirqd/108:40:011
28702993429,3cyclictest9-21ksoftirqd/012:10:000
28702993429,3cyclictest9-21ksoftirqd/010:14:010
28702993428,4cyclictest9-21ksoftirqd/010:50:120
28702993424,3cyclictest9-21ksoftirqd/007:40:220
28702993424,3cyclictest9-21ksoftirqd/007:40:220
28702993422,3cyclictest9-21ksoftirqd/011:20:170
28702993419,5cyclictest9-21ksoftirqd/011:00:190
2870299341,2cyclictest121rcu_preempt09:10:000
28705993328,3cyclictest41-21ksoftirqd/310:31:383
28705993327,4cyclictest41-21ksoftirqd/310:38:453
28705993327,3cyclictest21186-21irqrtprio10:15:193
28705993327,3cyclictest21186-21irqrtprio10:15:193
28704993328,3cyclictest33-21ksoftirqd/212:05:142
28703993329,2cyclictest25-21ksoftirqd/110:00:151
28703993329,2cyclictest25-21ksoftirqd/107:15:011
28703993328,3cyclictest25-21ksoftirqd/112:30:191
28703993328,3cyclictest25-21ksoftirqd/109:55:261
28703993327,4cyclictest25-21ksoftirqd/112:10:141
28703993327,4cyclictest25-21ksoftirqd/111:11:121
28703993325,4cyclictest25-21ksoftirqd/112:25:131
2870399330,2cyclictest121rcu_preempt09:25:291
28702993327,4cyclictest9-21ksoftirqd/009:49:070
28702993327,4cyclictest9-21ksoftirqd/009:49:070
28702993327,3cyclictest9-21ksoftirqd/010:46:000
28702993321,5cyclictest9-21ksoftirqd/009:10:190
28702993321,3cyclictest9-21ksoftirqd/012:30:140
28702993318,4cyclictest9-21ksoftirqd/010:15:240
28702993318,4cyclictest9-21ksoftirqd/010:15:240
139291330,1ptp4l0-21swapper/310:04:023
28705993227,3cyclictest41-21ksoftirqd/310:59:053
28705993227,3cyclictest41-21ksoftirqd/309:24:523
28705993227,3cyclictest41-21ksoftirqd/308:38:083
28705993227,3cyclictest41-21ksoftirqd/307:48:003
28705993226,4cyclictest41-21ksoftirqd/311:53:063
2870399323,3cyclictest121rcu_preempt11:30:011
28703993227,3cyclictest25-21ksoftirqd/109:40:121
28703993227,3cyclictest25-21ksoftirqd/109:35:201
28703993227,3cyclictest25-21ksoftirqd/108:45:101
28703993227,3cyclictest25-21ksoftirqd/108:45:101
28703993226,3cyclictest25-21ksoftirqd/110:10:241
28703993226,3cyclictest25-21ksoftirqd/109:50:131
2870399322,3cyclictest121rcu_preempt10:25:161
2870399321,3cyclictest121rcu_preempt11:55:131
2870399321,3cyclictest121rcu_preempt10:40:191
2870399320,2cyclictest121rcu_preempt09:02:451
28702993228,3cyclictest9-21ksoftirqd/007:25:130
28702993228,2cyclictest9-21ksoftirqd/009:35:140
28705993126,3cyclictest41-21ksoftirqd/311:48:513
28705993126,3cyclictest41-21ksoftirqd/310:47:473
28705993125,4cyclictest41-21ksoftirqd/307:28:463
28703993126,3cyclictest25-21ksoftirqd/107:45:151
28703993125,4cyclictest25-21ksoftirqd/111:40:411
2870399311,2cyclictest121rcu_preempt12:35:161
28705993025,3cyclictest41-21ksoftirqd/307:15:033
28705993024,4cyclictest41-21ksoftirqd/311:00:123
2870399302,6cyclictest121rcu_preempt08:15:251
28702993025,3cyclictest9-21ksoftirqd/012:18:550
28705992924,3cyclictest41-21ksoftirqd/312:23:523
28705992923,3cyclictest41-21ksoftirqd/308:09:503
28703992923,4cyclictest25-21ksoftirqd/109:20:151
28705992823,3cyclictest41-21ksoftirqd/308:03:443
28705992721,4cyclictest41-21ksoftirqd/308:43:583
28705992621,3cyclictest41-21ksoftirqd/308:31:373
28705992520,3cyclictest41-21ksoftirqd/307:35:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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