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2026-03-13 - 17:22
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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 highest latencies:
System rackdslot3.osadl.org (updated Fri Mar 13, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313122207175,21sleep20-21swapper/207:05:492
139491205172,22phc2sys0-21swapper/307:09:473
313632203170,22sleep10-21swapper/107:06:291
313672200167,23sleep00-21swapper/007:06:310
139391890,1ptp4l2699-21irqrtprio07:15:183
139391820,1ptp4l401ktimersoftd/308:18:493
31934996429,6cyclictest33-21ksoftirqd/208:20:142
31934996232,3cyclictest33-21ksoftirqd/209:55:182
31934996227,4cyclictest33-21ksoftirqd/211:30:122
31934996129,6cyclictest33-21ksoftirqd/209:15:212
31934996127,6cyclictest33-21ksoftirqd/208:00:182
31934996124,4cyclictest33-21ksoftirqd/210:00:212
31934996122,6cyclictest33-21ksoftirqd/209:15:002
31934996121,7cyclictest33-21ksoftirqd/210:40:122
31934996023,5cyclictest33-21ksoftirqd/210:10:002
31934996019,8cyclictest33-21ksoftirqd/209:20:172
31934995926,8cyclictest33-21ksoftirqd/210:50:122
31934995926,10cyclictest33-21ksoftirqd/211:45:292
31934995924,4cyclictest33-21ksoftirqd/211:15:242
31934995922,6cyclictest33-21ksoftirqd/207:20:112
31934995919,6cyclictest33-21ksoftirqd/208:15:262
31934995828,9cyclictest33-21ksoftirqd/210:25:012
31934995828,9cyclictest33-21ksoftirqd/210:25:012
31934995826,9cyclictest33-21ksoftirqd/209:35:002
31934995825,6cyclictest33-21ksoftirqd/211:25:142
31934995823,5cyclictest33-21ksoftirqd/211:05:162
31934995823,5cyclictest33-21ksoftirqd/210:25:102
3193499575,6cyclictest33-21ksoftirqd/209:00:012
31934995724,6cyclictest33-21ksoftirqd/209:50:232
31934995724,4cyclictest33-21ksoftirqd/212:15:272
31934995723,9cyclictest33-21ksoftirqd/210:10:112
31934995723,9cyclictest33-21ksoftirqd/207:40:202
31934995721,6cyclictest33-21ksoftirqd/212:00:122
31934995721,6cyclictest33-21ksoftirqd/209:05:242
31934995721,6cyclictest33-21ksoftirqd/208:15:012
31934995627,4cyclictest33-21ksoftirqd/207:55:192
31934995624,6cyclictest33-21ksoftirqd/210:45:182
31934995621,6cyclictest33-21ksoftirqd/210:55:152
31934995621,4cyclictest33-21ksoftirqd/212:25:182
31934995619,11cyclictest33-21ksoftirqd/212:10:252
31934995526,8cyclictest33-21ksoftirqd/208:25:202
31934995526,5cyclictest33-21ksoftirqd/207:20:002
31934995525,9cyclictest33-21ksoftirqd/208:30:162
139391550,1ptp4l401ktimersoftd/307:10:213
31934995428,6cyclictest33-21ksoftirqd/207:45:122
31934995426,9cyclictest33-21ksoftirqd/209:00:142
31934995423,9cyclictest33-21ksoftirqd/211:10:142
31934995416,5cyclictest33-21ksoftirqd/212:30:122
139391540,1ptp4l401ktimersoftd/307:26:553
31934995324,9cyclictest33-21ksoftirqd/208:50:152
31934995318,5cyclictest33-21ksoftirqd/209:40:222
31934995318,5cyclictest33-21ksoftirqd/207:30:232
31934995313,4cyclictest33-21ksoftirqd/211:00:182
3193499526,6cyclictest33-21ksoftirqd/208:35:202
3193499524,5cyclictest2614-21apt-get10:40:002
31934995224,9cyclictest33-21ksoftirqd/208:40:122
31934995222,8cyclictest33-21ksoftirqd/212:20:122
31934995222,8cyclictest33-21ksoftirqd/212:20:122
31934995222,5cyclictest33-21ksoftirqd/207:50:002
31934995219,4cyclictest33-21ksoftirqd/211:20:112
31934995216,5cyclictest33-21ksoftirqd/210:15:192
3193499514,6cyclictest33-21ksoftirqd/207:10:232
31934995123,9cyclictest33-21ksoftirqd/211:35:192
31934995122,8cyclictest33-21ksoftirqd/208:05:152
3193499505,5cyclictest33-21ksoftirqd/209:45:282
3193499493,5cyclictest33-21ksoftirqd/207:25:152
31934994924,9cyclictest33-21ksoftirqd/211:40:132
31934994918,7cyclictest33-21ksoftirqd/212:05:122
132432490,1sleep30-21swapper/308:45:153
3193499483,6cyclictest33-21ksoftirqd/211:55:162
3193499482,6cyclictest33-21ksoftirqd/211:50:242
31934994812,6cyclictest33-21ksoftirqd/210:30:232
134491480,1getstats0-21swapper/307:40:183
3193499475,5cyclictest33-21ksoftirqd/209:25:202
3193499475,5cyclictest33-21ksoftirqd/207:35:262
3193499472,6cyclictest33-21ksoftirqd/208:45:142
3193499454,5cyclictest33-21ksoftirqd/209:35:172
3193499445,7cyclictest33-21ksoftirqd/212:35:142
31932994311,4cyclictest9-21ksoftirqd/010:50:170
139391430,0ptp4l401ktimersoftd/312:16:203
139391420,0ptp4l401ktimersoftd/311:02:273
31933994136,3cyclictest25-21ksoftirqd/109:05:001
139391410,0ptp4l401ktimersoftd/310:30:013
139391410,0ptp4l401ktimersoftd/309:05:193
139391410,0ptp4l401ktimersoftd/307:45:163
31933993834,3cyclictest25-21ksoftirqd/108:35:011
31933993834,2cyclictest25-21ksoftirqd/112:15:001
31933993834,2cyclictest25-21ksoftirqd/111:20:001
31933993833,3cyclictest25-21ksoftirqd/109:00:001
31933993732,3cyclictest25-21ksoftirqd/110:40:001
31935993630,4cyclictest41-21ksoftirqd/309:44:203
31935993629,4cyclictest41-21ksoftirqd/309:19:593
31933993632,3cyclictest25-21ksoftirqd/110:05:181
31933993631,3cyclictest25-21ksoftirqd/107:20:111
31933993630,4cyclictest25-21ksoftirqd/111:04:171
31933993630,4cyclictest25-21ksoftirqd/110:17:351
31933993630,4cyclictest25-21ksoftirqd/107:26:211
31933993630,4cyclictest25-21ksoftirqd/107:10:341
31932993632,2cyclictest9-21ksoftirqd/009:59:590
31932993631,3cyclictest9-21ksoftirqd/008:00:000
139391360,0ptp4l401ktimersoftd/307:39:073
31935993529,4cyclictest41-21ksoftirqd/311:45:553
31935993529,4cyclictest41-21ksoftirqd/311:16:583
31935993529,4cyclictest41-21ksoftirqd/309:53:103
31933993532,2cyclictest25-21ksoftirqd/108:25:001
31933993531,3cyclictest25-21ksoftirqd/112:35:001
31933993531,3cyclictest25-21ksoftirqd/112:00:001
31933993531,2cyclictest25-21ksoftirqd/108:14:591
31933993530,3cyclictest25-21ksoftirqd/111:55:001
31933993530,3cyclictest25-21ksoftirqd/108:35:161
31933993530,2cyclictest25-21ksoftirqd/108:30:011
31933993529,4cyclictest25-21ksoftirqd/112:07:471
31933993529,4cyclictest25-21ksoftirqd/110:22:531
31933993529,4cyclictest25-21ksoftirqd/110:22:531
31933993529,4cyclictest25-21ksoftirqd/107:43:471
31933993528,5cyclictest25-21ksoftirqd/111:49:221
31933993528,4cyclictest25-21ksoftirqd/109:42:291
31932993531,3cyclictest9-21ksoftirqd/011:39:470
31932993530,3cyclictest9-21ksoftirqd/009:40:000
31932993530,3cyclictest9-21ksoftirqd/008:20:120
31932993530,2cyclictest9-21ksoftirqd/007:14:590
31932993529,4cyclictest9-21ksoftirqd/011:07:090
31932993529,4cyclictest9-21ksoftirqd/008:19:110
139391350,0ptp4l401ktimersoftd/311:36:553
139391350,0ptp4l401ktimersoftd/309:45:173
31935993429,2cyclictest41-21ksoftirqd/309:25:173
31935993428,4cyclictest41-21ksoftirqd/311:26:333
31935993427,4cyclictest41-21ksoftirqd/308:09:583
31933993430,2cyclictest25-21ksoftirqd/111:10:001
31933993429,3cyclictest25-21ksoftirqd/110:59:371
31933993429,3cyclictest25-21ksoftirqd/110:30:131
31933993429,3cyclictest25-21ksoftirqd/109:39:361
31933993428,4cyclictest25-21ksoftirqd/108:50:501
31933993428,4cyclictest25-21ksoftirqd/108:19:291
31933993418,2cyclictest32705-21cut11:40:181
31932993431,2cyclictest9-21ksoftirqd/012:40:000
31932993430,3cyclictest9-21ksoftirqd/009:50:170
31932993429,3cyclictest9-21ksoftirqd/011:00:010
31932993429,3cyclictest9-21ksoftirqd/010:35:170
31932993429,3cyclictest9-21ksoftirqd/010:10:320
31932993429,3cyclictest9-21ksoftirqd/007:30:010
31932993428,4cyclictest9-21ksoftirqd/012:24:430
31932993428,4cyclictest9-21ksoftirqd/012:24:430
31932993428,4cyclictest9-21ksoftirqd/009:04:380
31932993427,4cyclictest9-21ksoftirqd/011:50:490
31932993427,4cyclictest9-21ksoftirqd/008:12:510
31935993328,3cyclictest41-21ksoftirqd/312:02:203
31935993328,3cyclictest41-21ksoftirqd/308:00:193
31935993328,3cyclictest41-21ksoftirqd/307:22:483
31935993327,4cyclictest41-21ksoftirqd/311:32:153
31935993327,4cyclictest41-21ksoftirqd/311:07:123
31935993327,4cyclictest41-21ksoftirqd/310:48:183
31935993327,3cyclictest41-21ksoftirqd/311:55:383
31933993327,4cyclictest25-21ksoftirqd/112:29:251
31933993327,4cyclictest25-21ksoftirqd/112:21:111
31933993327,4cyclictest25-21ksoftirqd/112:21:111
31933993327,4cyclictest25-21ksoftirqd/112:19:341
31933993327,4cyclictest25-21ksoftirqd/111:21:461
31933993327,4cyclictest25-21ksoftirqd/110:45:041
31933993327,4cyclictest25-21ksoftirqd/109:06:151
31933993327,4cyclictest25-21ksoftirqd/108:48:171
31933993327,4cyclictest25-21ksoftirqd/107:51:461
31933993327,3cyclictest25-21ksoftirqd/108:44:291
31933993327,3cyclictest25-21ksoftirqd/107:35:001
31933993326,4cyclictest25-21ksoftirqd/112:04:461
31932993328,3cyclictest9-21ksoftirqd/011:40:150
31932993328,3cyclictest9-21ksoftirqd/010:20:000
31932993328,3cyclictest9-21ksoftirqd/010:09:590
31932993328,3cyclictest9-21ksoftirqd/008:55:120
31932993327,4cyclictest9-21ksoftirqd/011:29:470
31932993327,4cyclictest9-21ksoftirqd/010:48:510
31932993327,4cyclictest9-21ksoftirqd/009:43:530
31932993327,4cyclictest9-21ksoftirqd/008:01:470
31932993326,4cyclictest9-21ksoftirqd/012:28:080
139391330,1ptp4l401ktimersoftd/309:35:573
31935993227,3cyclictest41-21ksoftirqd/312:38:583
31935993227,3cyclictest41-21ksoftirqd/310:21:503
31935993227,3cyclictest41-21ksoftirqd/310:21:503
31935993227,3cyclictest41-21ksoftirqd/309:11:443
31935993226,4cyclictest41-21ksoftirqd/311:52:373
31935993226,4cyclictest41-21ksoftirqd/309:31:443
31935993226,4cyclictest41-21ksoftirqd/307:58:333
31935993226,3cyclictest41-21ksoftirqd/308:55:003
31933993227,3cyclictest25-21ksoftirqd/111:35:001
31933993227,3cyclictest25-21ksoftirqd/111:10:131
31933993227,3cyclictest25-21ksoftirqd/109:55:211
31933993226,4cyclictest25-21ksoftirqd/112:35:511
31933993226,4cyclictest25-21ksoftirqd/110:13:221
31933993225,4cyclictest25-21ksoftirqd/109:50:001
31933993225,4cyclictest25-21ksoftirqd/108:02:121
31933993218,3cyclictest25-21ksoftirqd/109:10:141
31932993228,3cyclictest9-21ksoftirqd/012:19:530
31932993227,3cyclictest9-21ksoftirqd/011:30:210
31932993227,3cyclictest9-21ksoftirqd/008:55:000
31932993227,3cyclictest9-21ksoftirqd/007:36:370
31932993227,3cyclictest14667-21kworker/0:111:15:120
31932993226,4cyclictest9-21ksoftirqd/012:13:080
31932993226,4cyclictest9-21ksoftirqd/012:05:290
31932993226,4cyclictest9-21ksoftirqd/010:26:170
31932993226,4cyclictest9-21ksoftirqd/010:00:330
31932993226,4cyclictest9-21ksoftirqd/008:46:160
31932993226,4cyclictest9-21ksoftirqd/008:36:330
31932993226,4cyclictest9-21ksoftirqd/008:26:060
31932993226,4cyclictest9-21ksoftirqd/007:44:070
31932993225,4cyclictest9-21ksoftirqd/011:59:200
139391320,0ptp4l401ktimersoftd/310:35:123
139391320,0ptp4l401ktimersoftd/308:11:493
31935993126,3cyclictest41-21ksoftirqd/310:40:113
31935993126,3cyclictest41-21ksoftirqd/307:32:133
31935993125,4cyclictest41-21ksoftirqd/312:31:083
31935993125,4cyclictest41-21ksoftirqd/310:03:543
31933993126,3cyclictest25-21ksoftirqd/109:30:181
31933993126,3cyclictest25-21ksoftirqd/107:35:121
31933993126,3cyclictest25-21ksoftirqd/107:15:161
31933993125,4cyclictest25-21ksoftirqd/110:54:551
31933993125,4cyclictest25-21ksoftirqd/110:44:231
31933993125,4cyclictest25-21ksoftirqd/109:51:481
31933993125,4cyclictest25-21ksoftirqd/108:08:261
31932993127,3cyclictest9-21ksoftirqd/009:25:170
31932993126,3cyclictest9-21ksoftirqd/009:15:210
31932993125,4cyclictest9-21ksoftirqd/009:45:540
31932993125,4cyclictest9-21ksoftirqd/008:34:240
31932993125,4cyclictest9-21ksoftirqd/007:49:480
31932993125,3cyclictest9-21ksoftirqd/012:01:070
31932993125,3cyclictest9-21ksoftirqd/011:45:130
31932993125,3cyclictest9-21ksoftirqd/007:15:110
139391310,0ptp4l401ktimersoftd/310:51:403
31935993025,3cyclictest41-21ksoftirqd/311:14:233
31935993024,4cyclictest41-21ksoftirqd/312:14:033
31935993024,4cyclictest41-21ksoftirqd/311:21:203
31935993024,4cyclictest41-21ksoftirqd/310:17:373
31935993024,4cyclictest41-21ksoftirqd/308:35:053
31933993025,3cyclictest25-21ksoftirqd/109:15:121
31932993025,3cyclictest9-21ksoftirqd/011:15:000
31932993025,3cyclictest9-21ksoftirqd/009:15:000
31932993025,3cyclictest9-21ksoftirqd/008:40:170
31932993025,3cyclictest9-21ksoftirqd/007:20:310
139391300,0ptp4l401ktimersoftd/309:20:263
139391300,0ptp4l401ktimersoftd/309:04:533
139391300,0ptp4l401ktimersoftd/308:32:523
31935992923,4cyclictest41-21ksoftirqd/308:26:223
31933992926,2cyclictest25-21ksoftirqd/109:30:001
31933992924,3cyclictest25-21ksoftirqd/109:20:191
31933992923,4cyclictest25-21ksoftirqd/110:28:381
31932992924,3cyclictest9-21ksoftirqd/012:30:110
31932992924,3cyclictest9-21ksoftirqd/009:21:300
31932992924,3cyclictest9-21ksoftirqd/008:05:150
31932992923,4cyclictest9-21ksoftirqd/011:01:390
31932992923,3cyclictest9-21ksoftirqd/007:30:100
139391290,0ptp4l401ktimersoftd/310:06:173
31935992823,3cyclictest41-21ksoftirqd/308:57:313
31935992822,4cyclictest41-21ksoftirqd/312:25:123
31933992825,2cyclictest25-21ksoftirqd/110:00:161
31933992823,3cyclictest25-21ksoftirqd/111:25:141
31933992823,3cyclictest25-21ksoftirqd/107:45:131
31932992825,2cyclictest9-21ksoftirqd/009:35:000
31932992824,3cyclictest9-21ksoftirqd/011:20:120
31932992823,3cyclictest9-21ksoftirqd/010:31:330
31932992822,4cyclictest9-21ksoftirqd/007:51:440
139391280,0ptp4l401ktimersoftd/312:05:133
31935992723,3cyclictest41-21ksoftirqd/312:23:203
31935992723,3cyclictest41-21ksoftirqd/312:23:203
31935992722,3cyclictest41-21ksoftirqd/310:57:213
31935992722,3cyclictest41-21ksoftirqd/310:26:573
31933992722,3cyclictest25-21ksoftirqd/111:39:151
31933992721,3cyclictest25-21ksoftirqd/107:55:181
31932992721,4cyclictest9-21ksoftirqd/010:23:210
31932992721,4cyclictest9-21ksoftirqd/010:23:210
31932992623,2cyclictest9-21ksoftirqd/010:40:010
31932992621,3cyclictest9-21ksoftirqd/009:09:020
31935992520,3cyclictest41-21ksoftirqd/311:42:113
31935992520,3cyclictest41-21ksoftirqd/308:23:043
139391250,0ptp4l401ktimersoftd/307:50:113
139391240,0ptp4l401ktimersoftd/308:40:203
139391230,0ptp4l401ktimersoftd/310:10:193
139391220,0ptp4l401ktimersoftd/309:55:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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