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2026-01-04 - 16:24
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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 Sun Jan 04, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205171,23phc2sys0-21swapper/307:09:593
257872199167,21sleep20-21swapper/207:09:242
257212199164,23sleep00-21swapper/007:08:330
257492196163,22sleep10-21swapper/107:08:541
138491620,1ptp4l0-21swapper/312:25:143
2613699593,10cyclictest6403-21cat07:35:003
2613699563,10cyclictest21901-21tune2fs11:20:153
138491560,1ptp4l391rcuc/309:45:223
2613699544,11cyclictest30533-21sed08:20:263
2613699526,17cyclictest3698-21latency_hist08:35:003
2613699512,11cyclictest28666-21date11:35:003
2613699512,11cyclictest28666-21date11:35:003
2613699510,11cyclictest24746-21sed12:30:213
2613699506,5cyclictest0-21swapper/309:20:133
2613699504,9cyclictest1743-21ls07:25:123
2613699500,10cyclictest30087-21phc2sys11:35:253
2613699491,10cyclictest9201-21grep08:45:143
2613699480,17cyclictest11293-21latency_hist09:55:013
141172480,1sleep014119-21cpuspeed_turbos12:10:120
2613699474,6cyclictest0-21swapper/309:05:003
2613699451,10cyclictest568-21cat10:35:273
2613399457,5cyclictest9-21ksoftirqd/009:35:010
2613499440,42cyclictest0-21swapper/107:10:531
138491440,0ptp4l401ktimersoftd/312:11:003
26135994335,5cyclictest33-21ksoftirqd/207:20:012
2613399438,6cyclictest9-21ksoftirqd/008:00:000
138491430,0ptp4l401ktimersoftd/307:55:073
2613699423,5cyclictest0-21swapper/307:35:003
2613699420,15cyclictest1319-21snmpd08:53:343
26135994231,9cyclictest33-21ksoftirqd/210:40:252
26135994229,10cyclictest33-21ksoftirqd/210:45:282
26134994212,28cyclictest0-21swapper/107:19:531
2613399429,4cyclictest9-21ksoftirqd/011:00:150
26133994237,2cyclictest9-21ksoftirqd/008:59:590
138491420,0ptp4l401ktimersoftd/309:19:103
26135994135,3cyclictest33-21ksoftirqd/209:50:002
26135994132,5cyclictest33-21ksoftirqd/207:50:102
26135994129,10cyclictest33-21ksoftirqd/208:40:172
26133994113,4cyclictest9-21ksoftirqd/008:25:270
138491410,0ptp4l401ktimersoftd/312:20:513
138491410,0ptp4l401ktimersoftd/308:44:403
2613399406,6cyclictest9-21ksoftirqd/010:50:010
2613399401,3cyclictest121rcu_preempt08:20:280
138491400,0ptp4l401ktimersoftd/310:26:023
26135993934,3cyclictest33-21ksoftirqd/211:30:002
26134993934,3cyclictest25-21ksoftirqd/108:19:591
2613499390,37cyclictest0-21swapper/107:43:131
2613399394,6cyclictest9-21ksoftirqd/010:30:180
26133993934,3cyclictest9-21ksoftirqd/011:45:260
26133993934,3cyclictest9-21ksoftirqd/011:25:230
26133993933,3cyclictest9-21ksoftirqd/008:35:010
2613399391,6cyclictest9-21ksoftirqd/012:00:250
26135993832,4cyclictest33-21ksoftirqd/208:14:592
26135993832,3cyclictest33-21ksoftirqd/209:50:192
2613399388,6cyclictest9-21ksoftirqd/007:35:160
2613399385,6cyclictest9-21ksoftirqd/010:25:010
2613399384,5cyclictest9-21ksoftirqd/007:20:010
2613399383,8cyclictest9-21ksoftirqd/011:15:000
26133993835,2cyclictest9-21ksoftirqd/009:10:000
26133993834,2cyclictest9-21ksoftirqd/011:25:000
26133993833,3cyclictest9-21ksoftirqd/010:10:130
2613399383,2cyclictest121rcu_preempt08:05:150
26135993733,3cyclictest33-21ksoftirqd/210:40:002
26135993732,3cyclictest33-21ksoftirqd/209:40:002
26135993732,3cyclictest33-21ksoftirqd/209:10:002
26135993732,2cyclictest33-21ksoftirqd/211:35:002
26135993732,2cyclictest33-21ksoftirqd/211:35:002
26135993729,6cyclictest33-21ksoftirqd/208:25:142
26135993729,5cyclictest33-21ksoftirqd/211:50:012
26135993727,9cyclictest33-21ksoftirqd/208:35:272
26134993731,4cyclictest25-21ksoftirqd/111:42:571
26134993731,4cyclictest25-21ksoftirqd/108:22:431
2613399377,3cyclictest9-21ksoftirqd/010:40:280
2613399376,6cyclictest9-21ksoftirqd/010:55:190
2613399374,5cyclictest9-21ksoftirqd/011:40:180
2613399374,5cyclictest9-21ksoftirqd/008:35:200
2613399374,2cyclictest121rcu_preempt12:05:160
26133993733,2cyclictest9-21ksoftirqd/012:00:010
26133993733,2cyclictest9-21ksoftirqd/010:00:000
26133993732,3cyclictest9-21ksoftirqd/008:15:180
26133993731,3cyclictest9-21ksoftirqd/012:25:130
26133993731,3cyclictest9-21ksoftirqd/007:15:000
2613399371,3cyclictest9-21ksoftirqd/010:50:270
26133993710,4cyclictest9-21ksoftirqd/012:30:220
26135993632,3cyclictest33-21ksoftirqd/207:25:012
26135993632,2cyclictest33-21ksoftirqd/208:09:592
26135993631,3cyclictest33-21ksoftirqd/212:25:192
26135993631,3cyclictest33-21ksoftirqd/211:45:012
26135993631,3cyclictest33-21ksoftirqd/209:35:002
26135993631,3cyclictest33-21ksoftirqd/209:20:002
26135993631,3cyclictest33-21ksoftirqd/208:59:592
26135993630,4cyclictest33-21ksoftirqd/212:16:162
26135993630,4cyclictest33-21ksoftirqd/208:33:482
26135993630,3cyclictest33-21ksoftirqd/209:45:002
26134993630,4cyclictest25-21ksoftirqd/111:52:401
26134993630,4cyclictest25-21ksoftirqd/111:15:451
26134993630,4cyclictest25-21ksoftirqd/110:41:231
26134993630,4cyclictest25-21ksoftirqd/109:40:291
26134993630,4cyclictest25-21ksoftirqd/108:35:591
26134993630,4cyclictest25-21ksoftirqd/108:14:161
2613399368,3cyclictest9-21ksoftirqd/011:15:270
2613399364,5cyclictest9-21ksoftirqd/011:30:200
2613399364,5cyclictest9-21ksoftirqd/011:30:200
2613399363,5cyclictest9-21ksoftirqd/012:20:180
26133993632,2cyclictest9-21ksoftirqd/012:40:000
26133993632,2cyclictest9-21ksoftirqd/011:40:000
26133993632,2cyclictest9-21ksoftirqd/007:25:010
26133993631,3cyclictest9-21ksoftirqd/009:20:180
26133993630,4cyclictest9-21ksoftirqd/010:00:460
26133993630,3cyclictest9-21ksoftirqd/010:25:120
26133993630,3cyclictest9-21ksoftirqd/009:15:000
26133993630,3cyclictest9-21ksoftirqd/008:40:170
26133993630,3cyclictest9-21ksoftirqd/008:00:140
26133993630,3cyclictest9-21ksoftirqd/007:30:270
2613399362,6cyclictest9-21ksoftirqd/011:10:000
2613399362,5cyclictest9-21ksoftirqd/009:45:140
2613399362,2cyclictest121rcu_preempt09:35:170
2613399361,2cyclictest121rcu_preempt12:15:270
2613399361,2cyclictest121rcu_preempt09:15:230
26136993529,4cyclictest41-21ksoftirqd/311:14:153
26136993529,4cyclictest41-21ksoftirqd/309:42:003
26135993531,3cyclictest33-21ksoftirqd/210:20:002
26135993531,2cyclictest33-21ksoftirqd/211:20:002
26135993530,3cyclictest33-21ksoftirqd/212:10:002
26135993530,3cyclictest33-21ksoftirqd/211:15:002
26135993530,3cyclictest33-21ksoftirqd/209:55:222
26135993530,3cyclictest33-21ksoftirqd/208:50:192
26135993530,3cyclictest33-21ksoftirqd/207:30:182
26135993530,2cyclictest33-21ksoftirqd/210:50:142
26135993529,4cyclictest33-21ksoftirqd/210:04:572
26135993529,3cyclictest33-21ksoftirqd/211:00:012
26135993528,4cyclictest33-21ksoftirqd/212:23:142
26135993525,9cyclictest33-21ksoftirqd/212:30:302
26135993524,9cyclictest33-21ksoftirqd/208:00:182
26134993530,3cyclictest25-21ksoftirqd/111:11:081
26134993529,4cyclictest25-21ksoftirqd/112:23:091
2613399357,7cyclictest9-21ksoftirqd/007:50:130
2613399356,2cyclictest9-21ksoftirqd/010:05:120
2613399353,6cyclictest9-21ksoftirqd/009:00:140
2613399353,6cyclictest9-21ksoftirqd/007:25:160
26133993531,2cyclictest9-21ksoftirqd/009:45:000
26133993529,4cyclictest9-21ksoftirqd/008:53:350
26133993529,4cyclictest9-21ksoftirqd/008:11:140
26133993529,3cyclictest9-21ksoftirqd/009:50:130
2613399351,7cyclictest9-21ksoftirqd/011:50:150
2613399351,5cyclictest9-21ksoftirqd/009:25:160
2613399351,2cyclictest121rcu_preempt10:15:150
2613399351,2cyclictest121rcu_preempt08:45:290
2613699346,5cyclictest0-21swapper/307:10:273
26136993429,3cyclictest41-21ksoftirqd/308:12:583
26136993428,4cyclictest41-21ksoftirqd/312:39:233
26136993428,4cyclictest41-21ksoftirqd/307:53:453
26136993428,4cyclictest41-21ksoftirqd/307:46:153
26136993428,4cyclictest41-21ksoftirqd/307:46:153
26135993430,3cyclictest33-21ksoftirqd/208:20:142
26135993429,3cyclictest33-21ksoftirqd/210:25:012
26135993428,4cyclictest33-21ksoftirqd/209:26:272
26135993421,10cyclictest33-21ksoftirqd/209:10:242
26135993417,5cyclictest33-21ksoftirqd/212:00:292
26134993428,4cyclictest25-21ksoftirqd/111:59:021
26134993428,4cyclictest25-21ksoftirqd/109:10:571
26134993428,4cyclictest25-21ksoftirqd/109:05:111
2613399344,6cyclictest9-21ksoftirqd/007:40:140
26133993430,2cyclictest9-21ksoftirqd/007:45:140
26133993430,2cyclictest9-21ksoftirqd/007:45:140
2613399341,2cyclictest121rcu_preempt10:35:210
26136993328,3cyclictest41-21ksoftirqd/309:30:403
26136993327,4cyclictest41-21ksoftirqd/311:44:593
26136993327,4cyclictest41-21ksoftirqd/310:50:003
26136993327,4cyclictest41-21ksoftirqd/308:55:353
26135993329,3cyclictest33-21ksoftirqd/207:45:192
26135993329,3cyclictest33-21ksoftirqd/207:45:192
26135993329,2cyclictest33-21ksoftirqd/211:50:192
26135993329,2cyclictest33-21ksoftirqd/211:00:152
26135993328,3cyclictest33-21ksoftirqd/212:36:382
26135993328,3cyclictest33-21ksoftirqd/210:30:152
26135993328,3cyclictest33-21ksoftirqd/209:00:202
26135993327,4cyclictest33-21ksoftirqd/209:20:092
26135993327,4cyclictest33-21ksoftirqd/207:44:242
26135993327,4cyclictest33-21ksoftirqd/207:26:482
26135993327,3cyclictest33-21ksoftirqd/212:15:002
26135993327,3cyclictest33-21ksoftirqd/211:55:332
26135993326,5cyclictest33-21ksoftirqd/208:48:272
2613599331,5cyclictest0-21swapper/210:10:132
26134993329,3cyclictest25-21ksoftirqd/108:45:001
26134993327,4cyclictest25-21ksoftirqd/111:37:351
26134993327,4cyclictest25-21ksoftirqd/109:36:441
26134993327,4cyclictest25-21ksoftirqd/109:22:441
26134993327,4cyclictest25-21ksoftirqd/108:58:101
26134993327,4cyclictest25-21ksoftirqd/107:37:091
26136993227,3cyclictest41-21ksoftirqd/311:03:103
26136993225,5cyclictest41-21ksoftirqd/308:16:513
26136993225,4cyclictest41-21ksoftirqd/310:33:273
26136993225,4cyclictest41-21ksoftirqd/309:27:033
26135993228,3cyclictest33-21ksoftirqd/208:19:592
26135993227,3cyclictest33-21ksoftirqd/210:25:122
26135993227,3cyclictest33-21ksoftirqd/210:05:222
26135993227,3cyclictest33-21ksoftirqd/207:55:122
26135993227,2cyclictest33-21ksoftirqd/211:10:002
26134993227,3cyclictest25-21ksoftirqd/109:26:251
26134993227,2cyclictest27359-21kworker/1:008:25:131
26134993226,4cyclictest25-21ksoftirqd/111:26:511
26134993226,4cyclictest25-21ksoftirqd/111:07:591
26134993226,4cyclictest25-21ksoftirqd/110:53:061
26134993226,4cyclictest25-21ksoftirqd/110:31:401
26134993226,4cyclictest25-21ksoftirqd/110:27:111
26134993226,4cyclictest25-21ksoftirqd/110:00:081
26134993226,4cyclictest25-21ksoftirqd/109:53:011
26134993226,4cyclictest25-21ksoftirqd/108:45:131
26136993126,3cyclictest41-21ksoftirqd/310:59:223
26136993126,3cyclictest41-21ksoftirqd/310:50:163
26136993126,3cyclictest41-21ksoftirqd/308:03:403
26136993125,4cyclictest41-21ksoftirqd/310:19:553
26136993125,4cyclictest41-21ksoftirqd/310:02:313
26136993125,4cyclictest41-21ksoftirqd/309:08:383
26136993125,4cyclictest41-21ksoftirqd/307:20:473
26135993127,3cyclictest33-21ksoftirqd/211:35:162
26135993126,3cyclictest33-21ksoftirqd/207:40:002
2613599311,2cyclictest121rcu_preempt11:20:142
26134993126,3cyclictest25-21ksoftirqd/110:05:121
26134993126,3cyclictest25-21ksoftirqd/108:50:111
26134993126,3cyclictest25-21ksoftirqd/107:55:031
26134993126,3cyclictest25-21ksoftirqd/107:30:001
26134993125,4cyclictest25-21ksoftirqd/112:38:211
26134993125,4cyclictest25-21ksoftirqd/111:45:341
26134993125,4cyclictest25-21ksoftirqd/111:00:291
26134993125,4cyclictest25-21ksoftirqd/110:47:211
26134993125,4cyclictest25-21ksoftirqd/108:01:121
2613499310,1cyclictest0-21swapper/110:58:331
138491310,0ptp4l401ktimersoftd/311:50:323
26136993025,3cyclictest41-21ksoftirqd/311:57:073
26136993025,3cyclictest41-21ksoftirqd/308:38:333
26136993025,3cyclictest41-21ksoftirqd/308:28:143
26135993024,4cyclictest33-21ksoftirqd/207:14:212
26134993025,3cyclictest25-21ksoftirqd/108:33:261
26134993025,3cyclictest25-21ksoftirqd/108:07:221
26134993024,4cyclictest25-21ksoftirqd/112:31:511
26134993024,4cyclictest25-21ksoftirqd/112:03:391
26134993024,4cyclictest25-21ksoftirqd/111:22:031
26134993024,4cyclictest25-21ksoftirqd/110:37:341
26136992924,3cyclictest41-21ksoftirqd/310:12:393
26136992923,4cyclictest41-21ksoftirqd/312:06:413
26136992914,14cyclictest41-21ksoftirqd/307:20:003
26134992924,3cyclictest25-21ksoftirqd/112:29:181
26134992924,3cyclictest25-21ksoftirqd/110:17:001
26134992923,4cyclictest25-21ksoftirqd/109:31:271
26134992923,4cyclictest25-21ksoftirqd/107:52:471
26134992923,4cyclictest25-21ksoftirqd/107:46:131
26134992923,4cyclictest25-21ksoftirqd/107:46:131
26134992922,5cyclictest25-21ksoftirqd/110:23:021
26136992824,3cyclictest41-21ksoftirqd/309:55:243
26136992823,3cyclictest41-21ksoftirqd/310:21:063
26134992823,3cyclictest25-21ksoftirqd/112:05:101
26134992823,3cyclictest25-21ksoftirqd/111:31:001
26134992823,3cyclictest25-21ksoftirqd/111:31:001
26134992823,3cyclictest25-21ksoftirqd/109:04:391
26134992823,3cyclictest25-21ksoftirqd/107:20:391
26136992723,3cyclictest41-21ksoftirqd/312:15:243
26136992722,3cyclictest41-21ksoftirqd/309:11:213
26134992722,3cyclictest25-21ksoftirqd/112:11:491
26134992722,3cyclictest25-21ksoftirqd/109:57:451
26134992722,3cyclictest25-21ksoftirqd/109:19:391
138491270,0ptp4l401ktimersoftd/311:15:113
26136992620,4cyclictest41-21ksoftirqd/311:45:403
26136992619,4cyclictest41-21ksoftirqd/311:25:023
26134992621,3cyclictest25-21ksoftirqd/110:12:551
26136992520,3cyclictest41-21ksoftirqd/309:35:123
26136992519,3cyclictest41-21ksoftirqd/312:00:513
26136992511,5cyclictest41-21ksoftirqd/308:05:433
26134992520,3cyclictest25-21ksoftirqd/109:48:071
138491250,0ptp4l401ktimersoftd/310:05:123
138491250,0ptp4l401ktimersoftd/307:40:203
138491240,0ptp4l401ktimersoftd/311:05:203
138491240,0ptp4l401ktimersoftd/310:40:263
26134992318,3cyclictest25-21ksoftirqd/112:15:571
26134992318,3cyclictest25-21ksoftirqd/107:34:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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