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2026-09-10 - 17:16
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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 Sep 10, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169222203170,22sleep10-21swapper/107:06:181
139491203169,23phc2sys0-21swapper/307:07:103
169212202169,22sleep00-21swapper/007:06:170
170122201168,22sleep20-21swapper/207:07:272
17508997033,4cyclictest25-21ksoftirqd/109:40:001
17508995933,7cyclictest25-21ksoftirqd/112:10:251
17509995823,8cyclictest33-21ksoftirqd/209:58:012
17509995724,4cyclictest33-21ksoftirqd/210:20:012
1750899549,8cyclictest25-21ksoftirqd/109:25:161
17507995324,3cyclictest9-21ksoftirqd/010:05:130
139391530,1ptp4l401ktimersoftd/307:19:083
17508995218,7cyclictest25-21ksoftirqd/110:00:271
17507995219,6cyclictest9-21ksoftirqd/009:20:120
139391520,1ptp4l401ktimersoftd/308:01:393
1750899519,4cyclictest25-21ksoftirqd/107:40:181
17508995116,3cyclictest121rcu_preempt11:20:131
17508995114,4cyclictest25-21ksoftirqd/109:40:201
1750799516,3cyclictest8672-21turbostat07:59:590
1750899506,7cyclictest25-21ksoftirqd/109:13:381
1750899504,4cyclictest207-21systemd-journal12:20:001
17508995033,4cyclictest25-21ksoftirqd/110:40:011
17508995015,2cyclictest121rcu_preempt07:40:001
17509994931,5cyclictest33-21ksoftirqd/209:40:012
1750899498,10cyclictest25-21ksoftirqd/108:00:201
17508994943,3cyclictest22388-21apt09:35:011
17508994943,3cyclictest22388-21apt09:35:001
17507994915,4cyclictest9-21ksoftirqd/008:50:220
17507994820,4cyclictest9-21ksoftirqd/010:25:130
17507994817,9cyclictest9-21ksoftirqd/011:25:140
139391480,1ptp4l17524-21/usr/sbin/munin07:10:233
17509994727,17cyclictest33-21ksoftirqd/211:45:012
17508994714,6cyclictest25-21ksoftirqd/109:05:131
17508994714,2cyclictest121rcu_preempt10:30:001
17507994715,7cyclictest9-21ksoftirqd/008:25:260
17507994715,7cyclictest9-21ksoftirqd/007:30:230
17507994712,8cyclictest9-21ksoftirqd/009:05:160
1750999465,5cyclictest33-21ksoftirqd/212:20:182
17509994626,9cyclictest33-21ksoftirqd/208:55:012
1750899463,6cyclictest31923-21awk09:55:011
1750899463,3cyclictest25-21ksoftirqd/108:30:131
17507994620,3cyclictest9-21ksoftirqd/010:20:250
17507994618,8cyclictest9-21ksoftirqd/010:45:000
17507994618,8cyclictest9-21ksoftirqd/010:45:000
17507994616,4cyclictest9-21ksoftirqd/008:40:270
17507994615,8cyclictest9-21ksoftirqd/011:55:230
17507994615,3cyclictest9-21ksoftirqd/007:10:230
17507994613,8cyclictest9-21ksoftirqd/008:30:180
17507994613,7cyclictest9-21ksoftirqd/008:00:210
1751099451,41cyclictest14320-21tr08:10:183
17509994527,9cyclictest33-21ksoftirqd/208:00:272
17509994522,5cyclictest33-21ksoftirqd/207:15:222
17508994515,9cyclictest25-21ksoftirqd/107:50:241
1750899451,3cyclictest25-21ksoftirqd/109:15:161
1750799454,3cyclictest9-21ksoftirqd/007:25:120
17507994518,3cyclictest9-21ksoftirqd/009:25:230
17507994513,7cyclictest9-21ksoftirqd/008:55:260
17507994513,4cyclictest9-21ksoftirqd/009:55:190
17509994429,4cyclictest33-21ksoftirqd/209:10:232
1750899445,2cyclictest25-21ksoftirqd/110:40:211
1750899445,2cyclictest25-21ksoftirqd/110:40:211
17508994438,3cyclictest9059-21cron10:15:011
17508994438,3cyclictest25-21ksoftirqd/112:05:001
1750899443,2cyclictest121rcu_preempt07:45:281
17508994428,3cyclictest25-21ksoftirqd/111:35:201
17508994428,3cyclictest25-21ksoftirqd/111:35:201
17508994422,4cyclictest25-21ksoftirqd/112:30:261
1750899441,2cyclictest25-21ksoftirqd/107:10:171
17507994416,7cyclictest9-21ksoftirqd/011:05:020
17507994413,5cyclictest9-21ksoftirqd/010:00:220
17507994413,4cyclictest9-21ksoftirqd/011:20:130
17507994412,7cyclictest9-21ksoftirqd/012:35:180
17507994412,7cyclictest9-21ksoftirqd/012:35:170
17507994411,6cyclictest9-21ksoftirqd/007:40:260
17509994325,9cyclictest33-21ksoftirqd/208:20:252
17509994322,12cyclictest33-21ksoftirqd/211:00:192
1750899438,7cyclictest25-21ksoftirqd/108:55:261
1750899431,2cyclictest25-21ksoftirqd/108:25:221
1750899430,3cyclictest25-21ksoftirqd/111:05:251
17507994317,8cyclictest9-21ksoftirqd/011:15:180
17507994313,8cyclictest9-21ksoftirqd/012:30:150
17507994312,7cyclictest9-21ksoftirqd/011:00:160
17507994311,2cyclictest16341-21irqrtprio11:35:180
17507994311,2cyclictest16341-21irqrtprio11:35:180
139391430,1ptp4l401ktimersoftd/311:46:033
139391430,0ptp4l401ktimersoftd/308:22:513
139391430,0ptp4l401ktimersoftd/308:16:333
17509994222,9cyclictest33-21ksoftirqd/208:15:182
1750899427,3cyclictest25-21ksoftirqd/107:20:221
1750899423,7cyclictest25-21ksoftirqd/110:05:321
17508994236,3cyclictest25-21ksoftirqd/108:14:591
1750899423,3cyclictest121rcu_preempt12:20:181
17508994229,3cyclictest25-21ksoftirqd/111:54:591
17508994229,3cyclictest25-21ksoftirqd/107:33:171
1750899422,5cyclictest25-21ksoftirqd/112:25:171
1750899422,3cyclictest121rcu_preempt08:24:591
1750899422,2cyclictest25-21ksoftirqd/109:45:181
1750899420,3cyclictest18826-21cron10:35:011
1750899420,2cyclictest25-21ksoftirqd/109:20:151
17507994238,2cyclictest9-21ksoftirqd/010:40:000
1750799421,2cyclictest121rcu_preempt10:45:180
17507994211,6cyclictest9-21ksoftirqd/008:05:230
17507994210,4cyclictest9-21ksoftirqd/012:15:170
139391420,0ptp4l401ktimersoftd/311:39:243
139391420,0ptp4l401ktimersoftd/311:39:243
139391420,0ptp4l401ktimersoftd/310:38:253
139391420,0ptp4l401ktimersoftd/307:31:003
17509994126,4cyclictest33-21ksoftirqd/211:20:252
17509994124,8cyclictest33-21ksoftirqd/212:15:242
17509994124,7cyclictest33-21ksoftirqd/208:55:272
17509994123,9cyclictest33-21ksoftirqd/209:05:142
17509994122,10cyclictest33-21ksoftirqd/207:30:232
1750899416,5cyclictest25-21ksoftirqd/111:56:451
1750899414,3cyclictest121rcu_preempt07:55:241
1750899414,2cyclictest25-21ksoftirqd/107:25:241
17508994136,3cyclictest25-21ksoftirqd/111:05:001
17508994136,3cyclictest25-21ksoftirqd/110:00:011
17508994135,3cyclictest25-21ksoftirqd/112:40:001
17508994135,3cyclictest25-21ksoftirqd/112:40:001
17508994135,3cyclictest25-21ksoftirqd/111:20:001
17508994135,3cyclictest25-21ksoftirqd/108:10:011
17508994129,3cyclictest25-21ksoftirqd/108:45:121
1750899412,3cyclictest25-21ksoftirqd/108:42:451
1750899411,3cyclictest121rcu_preempt11:25:121
17507994110,4cyclictest9-21ksoftirqd/012:15:010
1750999407,4cyclictest33-21ksoftirqd/212:05:002
17509994027,4cyclictest33-21ksoftirqd/210:10:132
17509994027,11cyclictest33-21ksoftirqd/211:00:012
17509994019,12cyclictest33-21ksoftirqd/210:50:212
1750999400,4cyclictest0-21swapper/208:45:302
1750899409,10cyclictest25-21ksoftirqd/110:15:551
1750899404,4cyclictest25-21ksoftirqd/108:35:421
1750899404,2cyclictest121rcu_preempt10:50:151
17508994035,3cyclictest25-21ksoftirqd/111:00:001
17508994035,3cyclictest25-21ksoftirqd/108:19:591
1750899403,4cyclictest25-21ksoftirqd/107:19:121
17508994034,3cyclictest25-21ksoftirqd/111:15:001
17508994032,5cyclictest25-21ksoftirqd/111:40:101
17508994030,7cyclictest25-21ksoftirqd/110:20:171
1750899402,2cyclictest121rcu_preempt11:45:231
1750899400,2cyclictest25-21ksoftirqd/109:00:131
1750799409,4cyclictest9-21ksoftirqd/009:15:150
1750799407,4cyclictest9-21ksoftirqd/010:10:150
1750799405,10cyclictest9-21ksoftirqd/012:24:590
1750799401,9cyclictest9-21ksoftirqd/008:15:000
17507994013,3cyclictest9-21ksoftirqd/008:20:150
1750999394,4cyclictest33-21ksoftirqd/212:35:202
1750999394,4cyclictest33-21ksoftirqd/212:35:202
17509993923,8cyclictest33-21ksoftirqd/209:40:222
17509993923,5cyclictest33-21ksoftirqd/208:30:002
17509993922,9cyclictest33-21ksoftirqd/207:35:252
17509993922,8cyclictest33-21ksoftirqd/211:30:222
17509993921,9cyclictest33-21ksoftirqd/209:20:342
17509993921,10cyclictest33-21ksoftirqd/210:30:012
17508993933,3cyclictest25-21ksoftirqd/111:30:251
1750899391,2cyclictest1317-21runrttasks10:49:371
1750899390,3cyclictest25-21ksoftirqd/108:50:241
1750799398,4cyclictest9-21ksoftirqd/007:49:380
17507993934,3cyclictest9-21ksoftirqd/011:50:010
1750799392,2cyclictest121rcu_preempt12:25:180
17507993916,6cyclictest9-21ksoftirqd/012:05:200
17507993916,6cyclictest9-21ksoftirqd/012:05:200
1750999385,3cyclictest121rcu_preempt07:12:412
17509993833,3cyclictest2043-21dump-pmu-power12:15:002
17509993823,4cyclictest33-21ksoftirqd/212:25:192
17509993821,9cyclictest33-21ksoftirqd/211:45:152
17508993833,3cyclictest25-21ksoftirqd/112:05:141
17508993833,3cyclictest25-21ksoftirqd/112:05:141
1750799384,3cyclictest121rcu_preempt09:45:180
1750799384,10cyclictest9-21ksoftirqd/011:30:180
17507993833,3cyclictest9-21ksoftirqd/010:50:260
17507993832,3cyclictest9-21ksoftirqd/009:40:010
17507993832,3cyclictest9-21ksoftirqd/007:19:590
17507993823,5cyclictest9-21ksoftirqd/009:50:250
139391380,0ptp4l401ktimersoftd/307:43:053
17509993733,3cyclictest33-21ksoftirqd/209:50:012
17509993732,3cyclictest33-21ksoftirqd/209:05:002
17509993732,3cyclictest33-21ksoftirqd/208:35:012
17509993731,3cyclictest33-21ksoftirqd/209:50:252
1750999372,9cyclictest0-21swapper/211:29:492
17509993723,5cyclictest33-21ksoftirqd/208:05:162
17509993723,5cyclictest33-21ksoftirqd/207:24:492
17509993722,5cyclictest33-21ksoftirqd/208:35:262
17509993721,8cyclictest33-21ksoftirqd/211:37:432
17509993721,8cyclictest33-21ksoftirqd/211:37:432
17509993721,7cyclictest33-21ksoftirqd/207:30:012
17509993720,9cyclictest33-21ksoftirqd/209:30:242
17509993720,9cyclictest33-21ksoftirqd/209:30:242
17509993718,11cyclictest33-21ksoftirqd/210:40:172
17509993718,11cyclictest33-21ksoftirqd/210:40:172
1750999371,2cyclictest0-21swapper/211:16:362
1750799374,3cyclictest121rcu_preempt11:40:190
1750799373,3cyclictest121rcu_preempt09:40:180
17507993733,2cyclictest9-21ksoftirqd/011:15:010
17507993732,3cyclictest9-21ksoftirqd/009:30:130
17507993732,3cyclictest9-21ksoftirqd/009:30:120
17507993723,3cyclictest9-21ksoftirqd/007:20:240
1750799370,3cyclictest121rcu_preempt10:20:010
17510993630,4cyclictest41-21ksoftirqd/311:26:073
17510993630,4cyclictest41-21ksoftirqd/309:05:313
17510993623,10cyclictest41-21ksoftirqd/310:10:103
1750999364,9cyclictest121rcu_preempt07:48:282
17509993618,9cyclictest33-21ksoftirqd/212:05:222
17509993618,9cyclictest33-21ksoftirqd/212:05:222
17509993618,9cyclictest33-21ksoftirqd/210:20:262
17509993616,10cyclictest33-21ksoftirqd/208:10:252
1750999361,4cyclictest0-21swapper/211:10:062
1750999360,2cyclictest0-21swapper/210:39:292
1750799363,4cyclictest9-21ksoftirqd/009:00:190
17507993631,3cyclictest9-21ksoftirqd/008:35:120
17507993630,4cyclictest9-21ksoftirqd/007:53:310
17507993623,3cyclictest9-21ksoftirqd/008:20:000
1750799360,3cyclictest9-21ksoftirqd/011:50:170
139391360,0ptp4l401ktimersoftd/310:50:243
17510993529,4cyclictest41-21ksoftirqd/312:24:493
17510993529,4cyclictest41-21ksoftirqd/311:32:573
17510993529,4cyclictest41-21ksoftirqd/308:41:243
17510993529,4cyclictest41-21ksoftirqd/308:37:073
1750999352,9cyclictest33-21ksoftirqd/208:45:002
17509993528,6cyclictest33-21ksoftirqd/209:15:262
17509993524,9cyclictest33-21ksoftirqd/210:00:152
1750799355,3cyclictest9-21ksoftirqd/008:45:110
17507993530,3cyclictest9-21ksoftirqd/010:30:100
17507993523,3cyclictest9-21ksoftirqd/009:10:180
1751099343,2cyclictest121rcu_preempt09:55:163
17510993428,4cyclictest41-21ksoftirqd/312:39:003
17510993428,4cyclictest41-21ksoftirqd/312:39:003
17510993428,4cyclictest41-21ksoftirqd/310:57:503
17510993428,4cyclictest41-21ksoftirqd/307:55:343
17509993429,3cyclictest33-21ksoftirqd/210:10:002
17509993428,4cyclictest33-21ksoftirqd/211:50:452
1750999342,3cyclictest121rcu_preempt12:30:122
17509993420,5cyclictest33-21ksoftirqd/207:57:302
17509993418,8cyclictest33-21ksoftirqd/211:05:252
17509993416,9cyclictest33-21ksoftirqd/207:50:152
1750799343,2cyclictest121rcu_preempt10:55:260
17510993328,3cyclictest41-21ksoftirqd/310:19:233
17510993328,3cyclictest41-21ksoftirqd/309:39:583
17510993327,4cyclictest41-21ksoftirqd/312:27:213
17510993327,4cyclictest41-21ksoftirqd/310:46:393
17510993327,4cyclictest41-21ksoftirqd/310:34:253
17510993327,4cyclictest41-21ksoftirqd/310:04:043
17510993327,4cyclictest41-21ksoftirqd/307:22:293
17510993326,4cyclictest41-21ksoftirqd/307:25:143
17509993328,3cyclictest33-21ksoftirqd/212:00:002
17509993327,4cyclictest33-21ksoftirqd/209:29:592
17509993322,8cyclictest33-21ksoftirqd/210:45:262
17509993315,10cyclictest33-21ksoftirqd/207:40:262
17507993329,2cyclictest9-21ksoftirqd/007:35:230
17507993328,3cyclictest9-21ksoftirqd/012:00:240
17510993227,3cyclictest41-21ksoftirqd/312:19:183
17510993227,3cyclictest41-21ksoftirqd/309:14:463
17510993226,4cyclictest41-21ksoftirqd/312:00:533
17510993226,4cyclictest41-21ksoftirqd/311:44:163
17510993226,4cyclictest41-21ksoftirqd/311:07:133
17510993226,4cyclictest41-21ksoftirqd/308:58:363
17510993226,4cyclictest41-21ksoftirqd/308:32:453
17510993226,4cyclictest41-21ksoftirqd/308:06:053
17510993226,4cyclictest41-21ksoftirqd/307:47:523
17509993216,8cyclictest33-21ksoftirqd/210:34:282
17510993126,3cyclictest41-21ksoftirqd/312:11:413
17510993126,3cyclictest41-21ksoftirqd/310:09:063
17510993125,4cyclictest41-21ksoftirqd/308:45:293
139391310,0ptp4l401ktimersoftd/309:16:593
139391310,0ptp4l401ktimersoftd/307:35:163
17510993025,3cyclictest41-21ksoftirqd/311:01:193
17510993024,4cyclictest41-21ksoftirqd/309:30:293
17510993024,4cyclictest41-21ksoftirqd/309:30:293
17510993024,4cyclictest41-21ksoftirqd/309:25:493
139391300,0ptp4l401ktimersoftd/311:58:533
139391300,0ptp4l401ktimersoftd/311:53:553
139391300,0ptp4l401ktimersoftd/310:29:563
17510992925,3cyclictest41-21ksoftirqd/310:20:173
17510992924,3cyclictest41-21ksoftirqd/311:15:413
17510992924,3cyclictest41-21ksoftirqd/309:53:083
17510992924,3cyclictest41-21ksoftirqd/308:52:263
17510992923,4cyclictest41-21ksoftirqd/309:01:333
139391290,0ptp4l401ktimersoftd/311:10:313
139391290,0ptp4l401ktimersoftd/309:49:343
17510992824,2cyclictest41-21ksoftirqd/309:22:583
17510992822,4cyclictest41-21ksoftirqd/312:31:583
139391280,0ptp4l401ktimersoftd/312:09:083
139391280,0ptp4l401ktimersoftd/312:09:083
139391270,0ptp4l401ktimersoftd/309:42:513
17510992621,3cyclictest41-21ksoftirqd/307:54:383
17510992519,4cyclictest41-21ksoftirqd/311:24:103
139391250,0ptp4l401ktimersoftd/310:40:183
139391250,0ptp4l401ktimersoftd/310:40:183
139391230,0ptp4l401ktimersoftd/308:25:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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