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2026-08-21 - 01:07
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Thu Aug 20, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591210143,23phc2sys0-21swapper/307:07:493
237022208169,28sleep10-21swapper/107:09:501
233732206172,22sleep20-21swapper/207:05:362
235992205172,21sleep00-21swapper/007:08:320
346621470,2sleep20-21swapper/207:35:002
2371728363,10sleep00-21swapper/007:10:010
139291560,1ptp4l401ktimersoftd/311:49:123
139291520,1ptp4l401ktimersoftd/309:58:343
41298480,9rtkit-daemon0-21swapper/012:33:590
24014994640,3cyclictest17969-21latency_hist10:19:593
139291460,1ptp4l401ktimersoftd/311:16:593
24014994538,5cyclictest22704-21cron10:30:003
139291430,1ptp4l401ktimersoftd/312:01:183
139291430,0ptp4l401ktimersoftd/309:52:433
139291430,0ptp4l401ktimersoftd/309:31:433
139291420,0ptp4l401ktimersoftd/309:35:383
139291420,0ptp4l401ktimersoftd/308:15:433
139291420,0ptp4l401ktimersoftd/307:30:303
24012994134,3cyclictest18961-21cron09:15:011
139291410,0ptp4l401ktimersoftd/308:14:543
139291410,0ptp4l401ktimersoftd/307:26:293
139291400,0ptp4l401ktimersoftd/308:20:443
24014993934,3cyclictest41-21ksoftirqd/311:38:323
24014993930,7cyclictest41-21ksoftirqd/310:35:003
24013993933,4cyclictest33-21ksoftirqd/208:45:102
24012993933,4cyclictest26243-21cron11:45:001
139291390,0ptp4l401ktimersoftd/312:20:553
24014993831,4cyclictest41-21ksoftirqd/308:05:153
24011993831,4cyclictest9-21ksoftirqd/011:06:360
24011993831,4cyclictest9-21ksoftirqd/008:25:420
41298370,2rtkit-daemon0-21swapper/110:00:161
41298370,10rtkit-daemon0-21swapper/310:47:173
24014993731,4cyclictest41-21ksoftirqd/312:05:403
24014993731,4cyclictest41-21ksoftirqd/311:02:383
24014993731,4cyclictest41-21ksoftirqd/310:35:273
24014993731,4cyclictest41-21ksoftirqd/310:06:143
24014993731,4cyclictest41-21ksoftirqd/310:04:133
24014993731,4cyclictest41-21ksoftirqd/309:01:313
24014993731,4cyclictest41-21ksoftirqd/308:25:453
24014993730,4cyclictest41-21ksoftirqd/312:37:253
24013993731,4cyclictest33-21ksoftirqd/211:10:032
24013993731,4cyclictest33-21ksoftirqd/209:24:252
24013993714,4cyclictest27784-21ls08:25:122
24012993731,4cyclictest25-21ksoftirqd/112:21:071
24011993730,4cyclictest9-21ksoftirqd/011:58:590
24011993730,4cyclictest9-21ksoftirqd/007:43:500
139291370,0ptp4l401ktimersoftd/311:35:003
24014993631,3cyclictest41-21ksoftirqd/311:52:483
24014993630,4cyclictest41-21ksoftirqd/309:20:483
24014993630,4cyclictest41-21ksoftirqd/309:09:183
24014993630,4cyclictest41-21ksoftirqd/308:39:173
24013993632,3cyclictest33-21ksoftirqd/207:26:432
24013993631,3cyclictest33-21ksoftirqd/212:23:432
24013993631,3cyclictest33-21ksoftirqd/209:28:382
24013993631,3cyclictest33-21ksoftirqd/208:54:042
24013993631,3cyclictest33-21ksoftirqd/208:08:432
24013993630,4cyclictest33-21ksoftirqd/212:19:392
24013993630,4cyclictest33-21ksoftirqd/212:09:412
24013993630,4cyclictest33-21ksoftirqd/211:04:012
24013993630,4cyclictest33-21ksoftirqd/210:15:112
24013993630,4cyclictest33-21ksoftirqd/210:01:002
24013993629,4cyclictest33-21ksoftirqd/209:04:342
24012993631,3cyclictest25-21ksoftirqd/111:25:591
24012993631,3cyclictest25-21ksoftirqd/108:45:011
24012993631,3cyclictest25-21ksoftirqd/108:37:341
24012993630,4cyclictest25-21ksoftirqd/110:33:551
24012993630,4cyclictest25-21ksoftirqd/108:12:261
24012993629,4cyclictest25-21ksoftirqd/107:10:361
24011993630,4cyclictest9-21ksoftirqd/012:26:310
24011993630,4cyclictest9-21ksoftirqd/012:21:580
24011993630,4cyclictest9-21ksoftirqd/007:24:200
24011993629,4cyclictest9-21ksoftirqd/012:09:100
24011993629,4cyclictest9-21ksoftirqd/009:29:200
24011993629,4cyclictest9-21ksoftirqd/008:43:580
24014993530,3cyclictest41-21ksoftirqd/307:50:093
24014993530,3cyclictest41-21ksoftirqd/307:19:253
24014993529,4cyclictest41-21ksoftirqd/311:22:363
24014993529,4cyclictest41-21ksoftirqd/309:18:553
24014993529,4cyclictest41-21ksoftirqd/308:46:143
24013993530,3cyclictest33-21ksoftirqd/211:47:302
24013993530,3cyclictest33-21ksoftirqd/211:20:092
24013993529,4cyclictest33-21ksoftirqd/212:26:372
24013993529,4cyclictest33-21ksoftirqd/210:55:402
24013993529,4cyclictest33-21ksoftirqd/207:45:482
24012993530,3cyclictest25-21ksoftirqd/111:32:091
24012993530,3cyclictest25-21ksoftirqd/110:41:381
24012993530,3cyclictest25-21ksoftirqd/109:09:521
24012993529,4cyclictest25-21ksoftirqd/112:32:111
24012993529,4cyclictest25-21ksoftirqd/111:13:441
24012993529,4cyclictest25-21ksoftirqd/110:11:501
24012993529,4cyclictest25-21ksoftirqd/109:55:361
24012993529,4cyclictest25-21ksoftirqd/109:41:371
24012993528,4cyclictest25-21ksoftirqd/111:20:141
24012993528,4cyclictest25-21ksoftirqd/109:52:111
24012993528,4cyclictest25-21ksoftirqd/108:04:531
24012993528,4cyclictest25-21ksoftirqd/107:40:581
24011993529,4cyclictest9-21ksoftirqd/010:06:580
24011993529,4cyclictest9-21ksoftirqd/009:52:030
24011993529,4cyclictest9-21ksoftirqd/009:02:150
24011993529,3cyclictest9-21ksoftirqd/012:11:120
24011993528,4cyclictest9-21ksoftirqd/009:17:450
24011993528,4cyclictest9-21ksoftirqd/009:10:020
139291350,14ptp4l401ktimersoftd/309:25:283
139291350,0ptp4l401ktimersoftd/312:34:223
139291350,0ptp4l401ktimersoftd/308:43:333
24014993429,3cyclictest41-21ksoftirqd/312:16:233
24014993428,4cyclictest41-21ksoftirqd/311:59:113
24014993428,4cyclictest41-21ksoftirqd/310:58:453
24014993428,4cyclictest41-21ksoftirqd/307:58:493
24014993428,4cyclictest41-21ksoftirqd/307:44:443
24014993428,4cyclictest41-21ksoftirqd/307:23:143
24013993429,3cyclictest33-21ksoftirqd/210:23:202
24013993429,3cyclictest33-21ksoftirqd/210:13:422
24013993428,4cyclictest33-21ksoftirqd/211:40:402
24013993428,4cyclictest33-21ksoftirqd/211:39:522
24013993428,4cyclictest33-21ksoftirqd/209:51:372
24013993428,4cyclictest33-21ksoftirqd/209:37:242
24013993428,4cyclictest33-21ksoftirqd/208:22:552
24013993428,4cyclictest33-21ksoftirqd/208:12:002
24013993428,4cyclictest33-21ksoftirqd/208:01:122
24013993428,4cyclictest33-21ksoftirqd/207:51:582
24013993428,4cyclictest33-21ksoftirqd/207:43:272
2401399342,16cyclictest25089-21latency_hist10:35:002
24012993428,4cyclictest25-21ksoftirqd/110:07:001
24012993428,4cyclictest25-21ksoftirqd/109:48:511
24012993428,4cyclictest25-21ksoftirqd/109:16:371
24012993428,4cyclictest25-21ksoftirqd/107:22:041
24012993428,3cyclictest25-21ksoftirqd/107:57:531
24012993428,3cyclictest25-21ksoftirqd/107:15:111
24012993427,4cyclictest25-21ksoftirqd/112:37:071
24012993427,4cyclictest25-21ksoftirqd/109:36:111
24011993429,3cyclictest9-21ksoftirqd/009:40:310
24011993428,4cyclictest9-21ksoftirqd/011:28:180
24011993428,4cyclictest9-21ksoftirqd/011:11:090
24011993428,4cyclictest9-21ksoftirqd/010:37:110
24011993428,4cyclictest9-21ksoftirqd/010:13:400
24011993428,4cyclictest9-21ksoftirqd/009:39:060
24011993428,4cyclictest9-21ksoftirqd/009:31:080
24011993428,4cyclictest9-21ksoftirqd/009:22:420
24011993428,4cyclictest9-21ksoftirqd/008:14:510
24011993428,4cyclictest9-21ksoftirqd/007:58:530
24011993428,3cyclictest9-21ksoftirqd/010:02:080
24011993427,5cyclictest9-21ksoftirqd/007:51:000
24011993427,4cyclictest9-21ksoftirqd/011:54:100
24011993427,4cyclictest9-21ksoftirqd/007:45:540
24014993328,3cyclictest41-21ksoftirqd/310:23:263
24014993327,4cyclictest41-21ksoftirqd/311:12:423
24013993328,3cyclictest33-21ksoftirqd/211:34:242
24013993328,3cyclictest33-21ksoftirqd/211:18:432
24013993328,3cyclictest33-21ksoftirqd/207:21:542
24013993327,4cyclictest33-21ksoftirqd/212:38:572
24013993327,4cyclictest33-21ksoftirqd/212:31:592
24013993327,4cyclictest33-21ksoftirqd/208:32:332
2401399332,30cyclictest19874-21kworker/2:208:17:302
24013993312,4cyclictest24685-21sh07:10:172
24012993328,3cyclictest25-21ksoftirqd/110:21:121
24012993328,3cyclictest25-21ksoftirqd/108:25:351
24012993328,3cyclictest25-21ksoftirqd/108:15:421
24012993327,4cyclictest25-21ksoftirqd/111:46:421
24012993327,3cyclictest25-21ksoftirqd/110:35:141
24012993327,3cyclictest25-21ksoftirqd/108:34:121
24012993326,4cyclictest25-21ksoftirqd/108:52:461
24012993326,4cyclictest25-21ksoftirqd/107:49:111
24011993328,3cyclictest9-21ksoftirqd/011:36:130
24011993327,4cyclictest9-21ksoftirqd/011:47:240
24011993327,4cyclictest9-21ksoftirqd/010:59:390
24011993327,4cyclictest9-21ksoftirqd/008:46:320
24011993326,4cyclictest9-21ksoftirqd/012:38:470
24011993326,4cyclictest9-21ksoftirqd/009:08:130
24013993227,3cyclictest33-21ksoftirqd/210:45:132
24013993227,3cyclictest33-21ksoftirqd/209:40:112
24013993227,3cyclictest33-21ksoftirqd/209:30:522
24013993226,4cyclictest33-21ksoftirqd/209:47:592
24013993226,4cyclictest33-21ksoftirqd/209:19:112
24013993226,3cyclictest33-21ksoftirqd/211:25:122
24013993225,5cyclictest33-21ksoftirqd/207:15:412
24012993227,3cyclictest25-21ksoftirqd/111:16:491
24012993226,4cyclictest25-21ksoftirqd/110:53:331
24012993226,4cyclictest25-21ksoftirqd/109:29:121
24012993226,4cyclictest25-21ksoftirqd/109:21:421
24012993226,4cyclictest25-21ksoftirqd/108:21:571
24012993226,4cyclictest25-21ksoftirqd/107:34:441
24012993226,3cyclictest25-21ksoftirqd/109:31:411
24011993227,3cyclictest9-21ksoftirqd/008:19:040
24011993226,4cyclictest9-21ksoftirqd/012:00:560
24011993226,4cyclictest9-21ksoftirqd/011:24:130
24011993226,4cyclictest9-21ksoftirqd/008:03:420
24011993226,4cyclictest9-21ksoftirqd/007:27:330
24011993226,3cyclictest9-21ksoftirqd/009:48:010
24011993226,3cyclictest9-21ksoftirqd/008:37:360
24011993225,4cyclictest9-21ksoftirqd/011:01:350
24011993225,4cyclictest9-21ksoftirqd/010:47:140
24011993225,4cyclictest9-21ksoftirqd/009:59:050
24011993225,4cyclictest9-21ksoftirqd/007:31:170
139291320,0ptp4l401ktimersoftd/312:11:583
139291320,0ptp4l401ktimersoftd/308:33:563
24014993126,3cyclictest41-21ksoftirqd/310:40:133
24014993126,3cyclictest41-21ksoftirqd/309:49:013
24014993125,4cyclictest41-21ksoftirqd/310:12:483
24014993125,4cyclictest41-21ksoftirqd/308:58:263
24014993125,4cyclictest41-21ksoftirqd/308:51:073
24013993126,3cyclictest33-21ksoftirqd/212:11:422
24013993126,3cyclictest33-21ksoftirqd/211:58:052
24013993126,3cyclictest33-21ksoftirqd/207:55:122
24013993126,3cyclictest33-21ksoftirqd/207:36:172
24013993125,4cyclictest33-21ksoftirqd/210:36:492
24013993125,3cyclictest33-21ksoftirqd/211:05:112
2401399311,29cyclictest12651-21kworker/2:010:07:252
24012993126,3cyclictest25-21ksoftirqd/108:05:371
24012993125,4cyclictest25-21ksoftirqd/111:01:151
24012993125,3cyclictest25-21ksoftirqd/110:25:151
24012993125,3cyclictest25-21ksoftirqd/108:55:181
139291310,0ptp4l401ktimersoftd/312:28:583
139291310,0ptp4l401ktimersoftd/311:25:573
24014993025,3cyclictest41-21ksoftirqd/311:08:583
24014993025,3cyclictest41-21ksoftirqd/307:45:113
24014993025,3cyclictest41-21ksoftirqd/307:38:293
24014993024,4cyclictest41-21ksoftirqd/311:42:593
2401399307,22cyclictest19874-21kworker/2:208:55:382
24013993025,3cyclictest33-21ksoftirqd/209:06:332
2401399302,26cyclictest12651-21kworker/2:010:40:092
24012993025,3cyclictest25-21ksoftirqd/112:11:431
24012993024,4cyclictest25-21ksoftirqd/111:50:581
24012993024,4cyclictest25-21ksoftirqd/110:47:161
24012993024,4cyclictest25-21ksoftirqd/109:02:221
24011993024,4cyclictest9-21ksoftirqd/010:19:340
24014992924,3cyclictest41-21ksoftirqd/309:43:443
24014992923,4cyclictest41-21ksoftirqd/309:10:453
24013992924,3cyclictest33-21ksoftirqd/210:50:372
24013992924,3cyclictest33-21ksoftirqd/209:56:392
2401399292,26cyclictest19874-21kworker/2:208:42:302
2401399292,26cyclictest12651-21kworker/2:012:00:412
24012992923,4cyclictest25-21ksoftirqd/111:59:481
24012992923,4cyclictest25-21ksoftirqd/111:39:591
24011992924,3cyclictest9-21ksoftirqd/010:43:410
24011992923,4cyclictest9-21ksoftirqd/011:15:430
24011992923,4cyclictest9-21ksoftirqd/008:59:460
24011992923,4cyclictest9-21ksoftirqd/008:23:130
24014992823,3cyclictest41-21ksoftirqd/310:54:113
24014992823,3cyclictest41-21ksoftirqd/308:02:113
24013992823,3cyclictest33-21ksoftirqd/211:50:282
2401399282,25cyclictest19874-21kworker/2:208:36:212
2401399282,25cyclictest12651-21kworker/2:009:10:382
2401399281,26cyclictest12651-21kworker/2:010:26:102
24012992823,3cyclictest25-21ksoftirqd/112:15:131
24012992822,4cyclictest25-21ksoftirqd/112:09:031
24012992822,4cyclictest25-21ksoftirqd/110:58:181
24012992822,4cyclictest25-21ksoftirqd/107:28:381
24011992823,3cyclictest9-21ksoftirqd/007:15:330
24011992822,4cyclictest9-21ksoftirqd/010:51:350
139291280,0ptp4l401ktimersoftd/307:10:083
24012992722,3cyclictest25-21ksoftirqd/107:37:021
24011992722,3cyclictest9-21ksoftirqd/011:41:340
24011992722,3cyclictest9-21ksoftirqd/008:05:140
24011992721,3cyclictest9-21ksoftirqd/007:37:320
24012992520,3cyclictest25-21ksoftirqd/112:03:501
24012992520,3cyclictest25-21ksoftirqd/110:17:361
24012992519,4cyclictest25-21ksoftirqd/107:54:581
24011992519,4cyclictest9-21ksoftirqd/012:17:340
24011992419,3cyclictest9-21ksoftirqd/008:34:420
24012992317,3cyclictest25-21ksoftirqd/108:45:031
24011992317,4cyclictest9-21ksoftirqd/010:23:320
24012992217,3cyclictest25-21ksoftirqd/112:29:061
24012992217,3cyclictest25-21ksoftirqd/111:07:481
24011992217,3cyclictest9-21ksoftirqd/008:51:090
24011992116,3cyclictest9-21ksoftirqd/011:34:500
24011992014,3cyclictest22948-21acpi10:30:130
24011991712,3cyclictest22409-21seq10:26:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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