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2026-05-18 - 00:17
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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 Sun May 17, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269082218162,44sleep10-21swapper/107:08:061
269082218162,44sleep10-21swapper/107:08:051
139491205171,22phc2sys0-21swapper/307:09:223
139491205171,22phc2sys0-21swapper/307:09:213
267602202169,22sleep20-21swapper/207:06:102
267602202169,22sleep20-21swapper/207:06:102
267582202169,22sleep00-21swapper/007:06:080
267582202169,22sleep00-21swapper/007:06:080
2874921520,3sleep10-21swapper/111:40:231
139391670,1ptp4l401ktimersoftd/308:44:423
27356996124,7cyclictest25-21ksoftirqd/112:20:221
18592610,2sleep00-21swapper/009:39:590
27356995723,3cyclictest25-21ksoftirqd/109:20:451
27356995722,6cyclictest25-21ksoftirqd/107:40:201
27356995624,6cyclictest25-21ksoftirqd/109:40:001
139391560,1ptp4l401ktimersoftd/307:12:163
27356995423,7cyclictest25-21ksoftirqd/112:19:251
139391540,1ptp4l391rcuc/310:31:413
139391540,1ptp4l391rcuc/310:31:403
27356995324,8cyclictest25-21ksoftirqd/111:25:001
27356995321,7cyclictest25-21ksoftirqd/109:15:261
27356995320,7cyclictest25-21ksoftirqd/107:20:131
2735699527,8cyclictest25-21ksoftirqd/110:40:011
2735699526,4cyclictest25-21ksoftirqd/109:00:221
27356995221,7cyclictest25-21ksoftirqd/107:10:261
27356995221,3cyclictest25-21ksoftirqd/110:17:571
2735699516,4cyclictest25-21ksoftirqd/110:50:131
2735699515,5cyclictest25-21ksoftirqd/112:00:171
2735699515,4cyclictest25-21ksoftirqd/110:45:261
2735699515,4cyclictest25-21ksoftirqd/108:00:201
27356995121,9cyclictest25-21ksoftirqd/109:46:241
27356995118,7cyclictest25-21ksoftirqd/108:40:151
27356995114,10cyclictest25-21ksoftirqd/110:40:021
139391510,1ptp4l401ktimersoftd/311:18:343
2735699505,4cyclictest25-21ksoftirqd/111:45:141
2735699505,4cyclictest25-21ksoftirqd/110:20:141
2735699505,4cyclictest25-21ksoftirqd/107:30:261
27356995021,7cyclictest25-21ksoftirqd/111:55:211
27356995017,8cyclictest25-21ksoftirqd/109:10:211
2735699496,7cyclictest25-21ksoftirqd/107:15:221
2735699495,4cyclictest25-21ksoftirqd/111:05:221
2735699495,4cyclictest25-21ksoftirqd/108:55:251
2735699495,10cyclictest25-21ksoftirqd/107:45:261
2735699494,7cyclictest25-21ksoftirqd/111:15:261
27356994920,8cyclictest25-21ksoftirqd/109:27:271
2735699486,7cyclictest25-21ksoftirqd/111:35:161
2735699485,8cyclictest25-21ksoftirqd/109:55:261
2735699475,9cyclictest25-21ksoftirqd/109:05:221
2735699475,7cyclictest25-21ksoftirqd/110:30:261
2735699475,7cyclictest25-21ksoftirqd/110:30:251
2735699475,10cyclictest25-21ksoftirqd/110:00:151
2735699474,8cyclictest25-21ksoftirqd/108:10:271
2735699473,41cyclictest4213-21cron09:44:591
2735699472,5cyclictest25-21ksoftirqd/110:25:211
2735699471,6cyclictest25-21ksoftirqd/108:50:121
27357994617,27cyclictest0-21swapper/209:25:232
2735699466,4cyclictest25-21ksoftirqd/108:35:251
2735699465,7cyclictest25-21ksoftirqd/109:35:011
2735699465,7cyclictest25-21ksoftirqd/108:30:171
2735699465,7cyclictest25-21ksoftirqd/107:25:191
2735699464,8cyclictest25-21ksoftirqd/111:10:291
2735699464,8cyclictest25-21ksoftirqd/107:55:221
2735699464,7cyclictest25-21ksoftirqd/112:30:181
2735699463,4cyclictest25-21ksoftirqd/112:10:151
2735699463,10cyclictest25-21ksoftirqd/108:20:241
2735699461,6cyclictest25-21ksoftirqd/108:45:271
2735699455,7cyclictest25-21ksoftirqd/108:25:141
2735699454,7cyclictest25-21ksoftirqd/112:05:171
2735699452,3cyclictest25-21ksoftirqd/110:55:161
2735699451,6cyclictest25-21ksoftirqd/110:10:291
2735699445,8cyclictest25-21ksoftirqd/111:50:261
2735699445,7cyclictest25-21ksoftirqd/110:10:001
2735699444,8cyclictest25-21ksoftirqd/112:25:271
2735699444,7cyclictest25-21ksoftirqd/111:00:201
2735699444,3cyclictest25-21ksoftirqd/107:35:241
139391440,1ptp4l401ktimersoftd/309:10:173
2735699435,6cyclictest25-21ksoftirqd/111:25:251
27356994316,7cyclictest25-21ksoftirqd/112:35:131
2735699424,7cyclictest25-21ksoftirqd/109:55:001
2735699424,7cyclictest25-21ksoftirqd/109:55:001
27356994218,4cyclictest25-21ksoftirqd/111:34:101
139391420,0ptp4l401ktimersoftd/307:46:263
27357994115,24cyclictest14673-21kworker/2:211:55:342
27357994114,26cyclictest8964-21kworker/2:107:45:232
27357994114,26cyclictest0-21swapper/207:10:232
2735699413,7cyclictest25-21ksoftirqd/108:15:241
2735699412,8cyclictest25-21ksoftirqd/107:50:181
27357993934,3cyclictest19882-21sh09:10:002
2735699392,6cyclictest25-21ksoftirqd/108:05:151
27358993832,4cyclictest41-21ksoftirqd/308:32:313
27355993831,5cyclictest9-21ksoftirqd/012:10:070
139391380,0ptp4l401ktimersoftd/310:05:393
27355993730,4cyclictest9-21ksoftirqd/010:41:580
27355993729,5cyclictest9-21ksoftirqd/012:27:580
27355993729,5cyclictest9-21ksoftirqd/011:01:400
27358993630,4cyclictest41-21ksoftirqd/309:46:323
27357993630,4cyclictest33-21ksoftirqd/209:43:032
27357993629,4cyclictest33-21ksoftirqd/211:35:472
27357993629,4cyclictest33-21ksoftirqd/208:45:092
27355993629,4cyclictest9-21ksoftirqd/011:50:490
27358993530,3cyclictest41-21ksoftirqd/307:40:143
27358993529,4cyclictest41-21ksoftirqd/311:32:513
27358993529,4cyclictest41-21ksoftirqd/308:47:323
27358993529,4cyclictest41-21ksoftirqd/308:26:053
27358993529,4cyclictest41-21ksoftirqd/307:58:563
27358993528,5cyclictest41-21ksoftirqd/308:17:553
27358993528,4cyclictest41-21ksoftirqd/312:12:483
2735899351,2cyclictest121rcu_preempt10:44:253
27357993530,3cyclictest20899-21cron08:04:592
27357993529,4cyclictest33-21ksoftirqd/212:12:582
27357993529,4cyclictest33-21ksoftirqd/210:30:442
27357993529,4cyclictest33-21ksoftirqd/210:30:442
27357993529,4cyclictest33-21ksoftirqd/210:10:032
27357993528,4cyclictest33-21ksoftirqd/212:00:382
27355993530,3cyclictest9-21ksoftirqd/010:07:540
27355993529,4cyclictest9-21ksoftirqd/010:03:420
27355993529,4cyclictest9-21ksoftirqd/009:23:070
27355993528,4cyclictest9-21ksoftirqd/011:38:420
27355993528,4cyclictest9-21ksoftirqd/008:37:380
27355993528,4cyclictest9-21ksoftirqd/008:02:360
139391350,0ptp4l401ktimersoftd/311:25:163
139391350,0ptp4l401ktimersoftd/310:25:233
57898340,3rtkit-daemon41-21ksoftirqd/307:24:333
57898340,1rtkit-daemon0-21swapper/208:58:362
27358993429,3cyclictest41-21ksoftirqd/308:39:593
27358993428,4cyclictest41-21ksoftirqd/310:16:573
27358993427,4cyclictest41-21ksoftirqd/311:23:243
27357993428,4cyclictest33-21ksoftirqd/212:27:422
27357993428,4cyclictest33-21ksoftirqd/211:24:532
27357993428,4cyclictest33-21ksoftirqd/211:00:372
27357993428,4cyclictest33-21ksoftirqd/210:56:452
27357993428,4cyclictest33-21ksoftirqd/207:29:432
27357993427,4cyclictest33-21ksoftirqd/210:47:012
27357993427,4cyclictest33-21ksoftirqd/207:33:202
27355993428,4cyclictest9-21ksoftirqd/012:22:020
27355993428,4cyclictest9-21ksoftirqd/011:10:580
27355993428,4cyclictest9-21ksoftirqd/010:13:060
27355993428,4cyclictest9-21ksoftirqd/007:51:570
27355993427,4cyclictest9-21ksoftirqd/011:58:080
27358993327,4cyclictest41-21ksoftirqd/312:28:553
27358993327,4cyclictest41-21ksoftirqd/312:02:243
27358993327,4cyclictest41-21ksoftirqd/311:09:363
27358993327,4cyclictest41-21ksoftirqd/310:47:583
27358993326,4cyclictest9021-21cron07:40:013
27358993326,4cyclictest41-21ksoftirqd/307:28:413
27357993328,3cyclictest33-21ksoftirqd/210:39:312
27357993328,3cyclictest33-21ksoftirqd/208:19:552
27357993327,4cyclictest33-21ksoftirqd/210:41:392
27357993327,4cyclictest33-21ksoftirqd/208:24:202
27357993327,4cyclictest33-21ksoftirqd/207:56:562
27357993327,4cyclictest33-21ksoftirqd/207:35:452
27357993327,3cyclictest33-21ksoftirqd/212:20:002
27357993327,3cyclictest33-21ksoftirqd/209:55:012
27357993327,3cyclictest33-21ksoftirqd/209:55:002
27357993327,3cyclictest33-21ksoftirqd/209:17:382
27355993328,3cyclictest9-21ksoftirqd/012:00:110
27355993327,4cyclictest9-21ksoftirqd/011:43:430
27355993327,4cyclictest9-21ksoftirqd/009:48:510
27355993327,4cyclictest9-21ksoftirqd/009:43:210
27355993327,4cyclictest9-21ksoftirqd/007:39:560
27355993327,4cyclictest9-21ksoftirqd/007:15:420
27355993326,4cyclictest9-21ksoftirqd/008:59:150
27358993226,4cyclictest41-21ksoftirqd/308:57:113
27358993226,4cyclictest41-21ksoftirqd/307:19:293
27357993228,3cyclictest33-21ksoftirqd/211:48:472
27357993227,3cyclictest33-21ksoftirqd/208:35:002
27357993226,4cyclictest33-21ksoftirqd/211:13:452
27357993226,4cyclictest33-21ksoftirqd/209:36:042
27357993215,3cyclictest22923-21sh11:30:142
27355993226,4cyclictest9-21ksoftirqd/012:09:310
27355993226,4cyclictest9-21ksoftirqd/009:04:410
27355993226,3cyclictest9-21ksoftirqd/012:34:250
27355993226,3cyclictest9-21ksoftirqd/010:50:280
27355993225,4cyclictest9-21ksoftirqd/011:15:130
27355993225,4cyclictest9-21ksoftirqd/010:35:310
27355993225,4cyclictest9-21ksoftirqd/010:24:130
27355993225,4cyclictest9-21ksoftirqd/007:21:480
139391320,0ptp4l401ktimersoftd/312:35:263
27358993126,3cyclictest41-21ksoftirqd/312:30:103
27358993126,3cyclictest41-21ksoftirqd/308:05:523
27358993126,3cyclictest41-21ksoftirqd/307:51:203
27358993125,4cyclictest41-21ksoftirqd/309:55:363
27358993125,4cyclictest41-21ksoftirqd/308:51:253
27357993126,3cyclictest33-21ksoftirqd/211:27:332
27357993126,3cyclictest33-21ksoftirqd/209:57:282
27357993126,3cyclictest33-21ksoftirqd/209:32:312
27357993126,3cyclictest33-21ksoftirqd/208:42:382
27357993126,3cyclictest33-21ksoftirqd/207:20:062
27357993126,3cyclictest33-21ksoftirqd/207:15:302
27357993125,4cyclictest33-21ksoftirqd/211:50:352
27357993125,3cyclictest33-21ksoftirqd/208:25:072
27357993113,4cyclictest4399-21open_files10:50:202
27355993126,3cyclictest9-21ksoftirqd/008:25:290
27355993126,3cyclictest9-21ksoftirqd/007:12:450
27355993125,4cyclictest9-21ksoftirqd/012:17:170
27355993125,4cyclictest9-21ksoftirqd/009:55:010
27355993125,4cyclictest9-21ksoftirqd/009:55:000
27355993125,4cyclictest9-21ksoftirqd/008:22:460
27355993125,4cyclictest9-21ksoftirqd/007:30:580
27355993125,3cyclictest9-21ksoftirqd/010:57:390
27355993124,5cyclictest9-21ksoftirqd/010:31:300
27355993124,5cyclictest9-21ksoftirqd/010:31:300
139391310,0ptp4l401ktimersoftd/312:20:273
139391310,0ptp4l401ktimersoftd/312:09:323
139391310,0ptp4l401ktimersoftd/311:46:393
139391310,0ptp4l401ktimersoftd/311:35:163
139391310,0ptp4l401ktimersoftd/310:04:173
139391310,0ptp4l401ktimersoftd/309:22:273
139391310,0ptp4l401ktimersoftd/309:05:123
139391310,0ptp4l401ktimersoftd/309:03:453
139391310,0ptp4l401ktimersoftd/308:13:273
139391310,0ptp4l401ktimersoftd/308:01:293
27358993025,3cyclictest41-21ksoftirqd/311:03:043
27358993024,4cyclictest41-21ksoftirqd/310:36:123
27357993025,3cyclictest33-21ksoftirqd/207:53:112
27357993025,3cyclictest33-21ksoftirqd/207:42:102
27357993024,4cyclictest33-21ksoftirqd/212:06:482
27357993024,4cyclictest33-21ksoftirqd/208:06:222
27357993024,3cyclictest33-21ksoftirqd/208:53:322
27357993023,4cyclictest33-21ksoftirqd/212:22:082
27355993025,3cyclictest9-21ksoftirqd/010:49:230
27355993025,3cyclictest9-21ksoftirqd/010:18:340
27355993024,4cyclictest9-21ksoftirqd/011:30:360
27355993024,4cyclictest9-21ksoftirqd/011:05:480
27355993024,3cyclictest9-21ksoftirqd/008:14:280
27355993023,4cyclictest9-21ksoftirqd/010:25:120
27355993023,4cyclictest9-21ksoftirqd/008:40:310
27355993023,4cyclictest9-21ksoftirqd/008:19:400
139391300,23ptp4l35892irq/126-enp1s0-08:23:013
139391300,0ptp4l401ktimersoftd/311:53:593
139391300,0ptp4l401ktimersoftd/311:40:243
139391300,0ptp4l401ktimersoftd/311:10:173
139391300,0ptp4l401ktimersoftd/310:54:383
139391300,0ptp4l401ktimersoftd/310:20:153
139391300,0ptp4l401ktimersoftd/309:40:163
139391300,0ptp4l401ktimersoftd/309:38:463
139391300,0ptp4l401ktimersoftd/309:34:423
139391300,0ptp4l401ktimersoftd/309:25:473
27358992922,4cyclictest41-21ksoftirqd/307:31:063
27357992924,3cyclictest33-21ksoftirqd/209:46:112
27357992924,3cyclictest33-21ksoftirqd/209:13:122
27357992924,3cyclictest33-21ksoftirqd/208:36:462
27357992923,4cyclictest33-21ksoftirqd/209:04:552
2735799292,25cyclictest14673-21kworker/2:211:18:382
2735799292,17cyclictest17347-21kworker/2:110:18:412
2735799291,27cyclictest20818-21kworker/2:208:11:132
27355992923,4cyclictest9-21ksoftirqd/012:35:580
27355992923,4cyclictest9-21ksoftirqd/008:33:130
27355992923,3cyclictest9-21ksoftirqd/009:27:360
27355992923,3cyclictest9-21ksoftirqd/009:10:100
139391290,0ptp4l401ktimersoftd/311:59:553
139391290,0ptp4l401ktimersoftd/310:13:263
27358992823,3cyclictest41-21ksoftirqd/312:17:083
27358992821,4cyclictest41-21ksoftirqd/310:58:213
2735799282,25cyclictest14673-21kworker/2:211:43:012
27357992822,3cyclictest33-21ksoftirqd/212:30:362
2735799282,16cyclictest17347-21kworker/2:110:22:412
27355992823,3cyclictest9-21ksoftirqd/009:59:090
27355992823,3cyclictest9-21ksoftirqd/007:27:020
27355992822,4cyclictest9-21ksoftirqd/011:49:050
27355992822,4cyclictest9-21ksoftirqd/009:19:260
27355992822,4cyclictest9-21ksoftirqd/008:46:120
27355992821,4cyclictest9-21ksoftirqd/007:45:030
139391280,8ptp4l0-21swapper/309:16:543
139391280,0ptp4l401ktimersoftd/309:53:333
139391280,0ptp4l401ktimersoftd/309:53:323
2735799277,18cyclictest16169-21kworker/2:212:35:012
27357992722,3cyclictest33-21ksoftirqd/210:08:492
27357992721,3cyclictest33-21ksoftirqd/210:27:142
2735799271,25cyclictest17347-21kworker/2:111:09:452
2735799271,24cyclictest19600-21kworker/2:109:20:282
27355992722,3cyclictest9-21ksoftirqd/011:27:490
27355992722,3cyclictest9-21ksoftirqd/008:53:060
27355992721,4cyclictest9-21ksoftirqd/011:24:020
27355992721,4cyclictest9-21ksoftirqd/009:30:530
2735799250,16cyclictest28329-21kworker/2:010:04:482
27355992515,8cyclictest57798rtkit-daemon07:40:150
27355992419,3cyclictest9-21ksoftirqd/008:09:310
27355992419,3cyclictest9-21ksoftirqd/007:56:440
27355992116,3cyclictest9-21ksoftirqd/009:07:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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