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2026-03-13 - 22:06
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot6.osadl.org (updated Fri Mar 13, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2777621560,4sleep12169599cyclictest09:15:511
1068911080,4ptp4l401ktimersoftd/307:59:403
106891700,1ptp4l401ktimersoftd/309:43:583
108442650,3sleep09-21ksoftirqd/010:27:410
21703996349,7cyclictest33-21ksoftirqd/209:20:352
215222634,10sleep00-21swapper/007:59:390
21703995442,5cyclictest33-21ksoftirqd/213:15:432
14872540,1sleep30-21swapper/311:25:173
298462520,2sleep30-21swapper/310:46:433
218592510,2sleep00-21swapper/010:39:450
21690995044,3cyclictest9-21ksoftirqd/010:15:380
21690994842,3cyclictest9-21ksoftirqd/013:20:420
21690994841,4cyclictest9-21ksoftirqd/011:25:390
21690994841,4cyclictest9-21ksoftirqd/008:35:350
22042470,2sleep32205-21rm10:19:373
21690994741,3cyclictest9-21ksoftirqd/011:10:380
21690994740,3cyclictest9-21ksoftirqd/008:40:340
21708994520,5cyclictest11899-21cat13:15:313
21703994532,6cyclictest33-21ksoftirqd/209:30:362
21690994540,3cyclictest9-21ksoftirqd/010:05:380
21690994539,3cyclictest9-21ksoftirqd/011:30:390
21690994539,3cyclictest9-21ksoftirqd/009:10:350
21690994538,4cyclictest9-21ksoftirqd/011:20:410
21703994433,5cyclictest33-21ksoftirqd/209:25:352
106891440,1ptp4l401ktimersoftd/311:32:493
21690994336,4cyclictest9-21ksoftirqd/008:05:340
106891430,1ptp4l401ktimersoftd/308:42:023
21703994234,3cyclictest33-21ksoftirqd/208:00:232
106891420,1ptp4l401ktimersoftd/309:24:243
106891420,1ptp4l401ktimersoftd/308:51:063
21690994135,3cyclictest9-21ksoftirqd/008:45:350
21690994124,5cyclictest9-21ksoftirqd/012:36:010
21690994122,5cyclictest9-21ksoftirqd/013:05:500
106891410,1ptp4l401ktimersoftd/312:12:513
106891410,0ptp4l401ktimersoftd/308:58:403
21690994036,2cyclictest9-21ksoftirqd/010:00:360
21690994033,3cyclictest9-21ksoftirqd/008:15:360
106891400,1ptp4l401ktimersoftd/311:01:463
106891390,1ptp4l401ktimersoftd/312:34:543
106891390,1ptp4l401ktimersoftd/310:57:593
106891390,16ptp4l401ktimersoftd/309:15:513
106891380,1ptp4l401ktimersoftd/311:07:423
106891380,1ptp4l401ktimersoftd/311:07:423
106891380,1ptp4l401ktimersoftd/310:35:293
21708993718,4cyclictest41-21ksoftirqd/308:11:383
2170399374,4cyclictest33-21ksoftirqd/209:40:422
21703993721,4cyclictest33-21ksoftirqd/210:33:472
21690993731,3cyclictest9-21ksoftirqd/009:05:360
21690993731,3cyclictest9-21ksoftirqd/008:30:360
21690993723,11cyclictest9-21ksoftirqd/008:55:520
106891370,1ptp4l401ktimersoftd/313:28:203
106891370,1ptp4l401ktimersoftd/313:17:453
106891370,1ptp4l401ktimersoftd/313:05:363
106891370,1ptp4l401ktimersoftd/313:00:333
106891370,1ptp4l401ktimersoftd/312:46:013
106891370,1ptp4l401ktimersoftd/312:46:013
106891370,1ptp4l401ktimersoftd/312:29:353
106891370,1ptp4l401ktimersoftd/312:23:343
106891370,1ptp4l401ktimersoftd/312:18:173
106891370,1ptp4l401ktimersoftd/312:01:023
106891370,1ptp4l401ktimersoftd/311:56:323
106891370,1ptp4l401ktimersoftd/311:54:063
106891370,1ptp4l401ktimersoftd/311:46:533
106891370,1ptp4l401ktimersoftd/311:26:493
106891370,1ptp4l401ktimersoftd/311:20:183
106891370,1ptp4l401ktimersoftd/311:14:343
106891370,1ptp4l401ktimersoftd/310:05:113
106891370,0ptp4l401ktimersoftd/310:52:053
106891370,0ptp4l401ktimersoftd/310:15:243
21703993624,6cyclictest33-21ksoftirqd/210:10:382
2169099369,3cyclictest9-21ksoftirqd/008:20:590
21690993630,3cyclictest9-21ksoftirqd/012:10:290
21690993629,3cyclictest9-21ksoftirqd/009:35:380
106891360,1ptp4l401ktimersoftd/311:38:253
106891360,1ptp4l401ktimersoftd/310:28:353
106891360,1ptp4l401ktimersoftd/310:06:103
106891360,1ptp4l401ktimersoftd/308:15:513
106891360,0ptp4l401ktimersoftd/312:51:453
106891360,0ptp4l401ktimersoftd/312:51:453
106891360,0ptp4l401ktimersoftd/310:43:263
21703993518,10cyclictest33-21ksoftirqd/212:02:122
21690993530,3cyclictest9-21ksoftirqd/010:15:270
21690993529,3cyclictest9-21ksoftirqd/008:30:240
21690993521,4cyclictest9-21ksoftirqd/012:58:560
106891350,13ptp4l401ktimersoftd/312:40:303
106891350,0ptp4l401ktimersoftd/308:21:453
21708993427,4cyclictest3388-21cron09:35:253
21703993424,8cyclictest33-21ksoftirqd/211:45:392
2170399341,3cyclictest121rcu_preempt10:45:392
21703993412,13cyclictest33-21ksoftirqd/211:50:412
21690993418,3cyclictest9-21ksoftirqd/008:50:500
2169099340,3cyclictest121rcu_preempt11:45:330
215402343,19sleep1233-21systemd-journal07:59:531
21703993327,3cyclictest16790-21irqrtprio10:00:442
21703993323,5cyclictest33-21ksoftirqd/212:45:422
21703993323,5cyclictest33-21ksoftirqd/212:45:422
21703993321,10cyclictest33-21ksoftirqd/211:00:422
2170399330,3cyclictest121rcu_preempt10:50:412
21690993329,2cyclictest9-21ksoftirqd/009:30:250
106891330,1ptp4l401ktimersoftd/309:54:473
21703993226,3cyclictest33-21ksoftirqd/212:25:292
21703993226,3cyclictest33-21ksoftirqd/211:15:452
21703993226,3cyclictest33-21ksoftirqd/210:25:282
21703993226,3cyclictest33-21ksoftirqd/209:15:252
21703993221,4cyclictest33-21ksoftirqd/209:15:372
21703993220,4cyclictest33-21ksoftirqd/208:10:332
21703993220,3cyclictest33-21ksoftirqd/212:25:492
21703993218,4cyclictest33-21ksoftirqd/213:26:122
2170399321,3cyclictest33-21ksoftirqd/212:52:222
2170399321,3cyclictest33-21ksoftirqd/212:52:222
21690993226,3cyclictest9-21ksoftirqd/012:50:470
21690993226,3cyclictest9-21ksoftirqd/012:50:470
21690993223,6cyclictest9-21ksoftirqd/011:55:290
21690993223,3cyclictest9-21ksoftirqd/011:35:410
21690993217,7cyclictest9-21ksoftirqd/012:22:550
106891320,1ptp4l401ktimersoftd/311:41:573
106891320,1ptp4l401ktimersoftd/310:21:533
106891320,1ptp4l401ktimersoftd/309:36:483
2170399313,3cyclictest121rcu_preempt10:00:262
21703993125,3cyclictest33-21ksoftirqd/212:20:292
2170399310,3cyclictest121rcu_preempt09:00:382
2169099317,7cyclictest9-21ksoftirqd/012:10:570
21690993126,3cyclictest9-21ksoftirqd/013:25:440
21690993125,3cyclictest9-21ksoftirqd/011:40:450
21690993125,3cyclictest9-21ksoftirqd/011:00:420
21690993120,9cyclictest9-21ksoftirqd/012:25:590
2169099311,9cyclictest9-21ksoftirqd/011:05:430
2169099311,9cyclictest9-21ksoftirqd/011:05:430
106891310,1ptp4l401ktimersoftd/312:45:013
106891310,1ptp4l401ktimersoftd/310:32:193
106891310,0ptp4l401ktimersoftd/308:39:133
21703993025,3cyclictest33-21ksoftirqd/212:10:292
21703993025,3cyclictest33-21ksoftirqd/211:30:492
21703993025,3cyclictest33-21ksoftirqd/210:10:262
21703993025,3cyclictest33-21ksoftirqd/208:05:282
21703993024,3cyclictest33-21ksoftirqd/212:36:012
21703993024,3cyclictest33-21ksoftirqd/210:40:422
21703993024,3cyclictest33-21ksoftirqd/209:55:262
21703993024,3cyclictest33-21ksoftirqd/208:40:252
21703993024,3cyclictest33-21ksoftirqd/208:30:242
21703993024,3cyclictest23504-21cron09:10:242
21703993017,4cyclictest33-21ksoftirqd/212:55:572
21703993015,5cyclictest33-21ksoftirqd/213:05:562
21695993025,3cyclictest25-21ksoftirqd/112:55:301
21695993025,3cyclictest25-21ksoftirqd/112:55:301
21695993025,3cyclictest25-21ksoftirqd/108:30:251
2169099306,8cyclictest9-21ksoftirqd/008:10:370
2169099303,4cyclictest121rcu_preempt10:55:270
21690993026,2cyclictest9-21ksoftirqd/011:15:480
21690993025,3cyclictest9-21ksoftirqd/010:30:420
21690993025,3cyclictest9-21ksoftirqd/009:50:260
21690993024,3cyclictest9-21ksoftirqd/011:00:280
106891300,1ptp4l401ktimersoftd/309:29:093
286862290,5sleep028660-21needreboot10:45:480
2170899291,2cyclictest121rcu_preempt12:09:493
2170399293,3cyclictest121rcu_preempt12:12:272
2170399293,17cyclictest121rcu_preempt10:15:392
21703992924,3cyclictest33-21ksoftirqd/212:40:592
21703992924,3cyclictest33-21ksoftirqd/211:10:432
21703992923,3cyclictest33-21ksoftirqd/213:20:432
21703992923,3cyclictest33-21ksoftirqd/211:20:412
21703992923,3cyclictest33-21ksoftirqd/209:35:432
21703992923,3cyclictest33-21ksoftirqd/208:55:362
21703992922,4cyclictest33-21ksoftirqd/210:35:482
21703992918,9cyclictest33-21ksoftirqd/210:57:592
21703992918,9cyclictest33-21ksoftirqd/208:15:462
21695992924,3cyclictest25-21ksoftirqd/111:15:401
21695992924,3cyclictest15463-21sh10:00:261
21695992923,3cyclictest25-21ksoftirqd/109:50:261
2169099293,4cyclictest9-21ksoftirqd/012:34:090
21690992924,3cyclictest9-21ksoftirqd/010:20:550
21690992924,3cyclictest9-21ksoftirqd/010:00:270
21690992924,3cyclictest9-21ksoftirqd/009:55:260
21690992924,3cyclictest9-21ksoftirqd/008:05:240
21690992923,3cyclictest9-21ksoftirqd/012:45:450
21690992923,3cyclictest9-21ksoftirqd/012:45:450
21690992923,3cyclictest9-21ksoftirqd/012:00:290
21690992923,3cyclictest9-21ksoftirqd/009:05:250
21690992923,3cyclictest8609-21processes13:10:510
106891290,0ptp4l401ktimersoftd/308:33:403
21703992823,3cyclictest33-21ksoftirqd/211:35:442
21703992823,3cyclictest33-21ksoftirqd/208:05:242
21703992822,3cyclictest33-21ksoftirqd/211:40:432
21703992822,3cyclictest33-21ksoftirqd/211:25:462
21703992822,3cyclictest33-21ksoftirqd/210:25:382
21703992822,3cyclictest33-21ksoftirqd/208:50:252
21703992821,3cyclictest33-21ksoftirqd/211:55:402
21703992819,7cyclictest33-21ksoftirqd/212:30:432
21695992823,3cyclictest25-21ksoftirqd/112:15:301
21695992822,3cyclictest25-21ksoftirqd/111:55:411
21695992822,3cyclictest25-21ksoftirqd/110:50:271
21690992824,2cyclictest9-21ksoftirqd/013:20:310
21690992823,3cyclictest9-21ksoftirqd/012:00:420
21690992822,4cyclictest25022-1kworker/u9:210:45:110
21690992822,3cyclictest9-21ksoftirqd/013:05:310
21690992822,3cyclictest9-21ksoftirqd/009:40:380
21708992721,3cyclictest41-21ksoftirqd/309:59:433
2170399276,3cyclictest121rcu_preempt08:50:472
21703992722,3cyclictest33-21ksoftirqd/213:10:422
21703992722,3cyclictest33-21ksoftirqd/213:00:422
21703992722,3cyclictest33-21ksoftirqd/211:05:372
21703992722,3cyclictest33-21ksoftirqd/211:05:372
21703992721,3cyclictest33-21ksoftirqd/209:45:462
21703992721,3cyclictest33-21ksoftirqd/208:23:362
21695992723,3cyclictest25-21ksoftirqd/110:10:271
21695992722,3cyclictest25-21ksoftirqd/113:15:501
21695992722,3cyclictest25-21ksoftirqd/111:30:461
21695992722,3cyclictest25-21ksoftirqd/110:40:441
21695992722,3cyclictest25-21ksoftirqd/108:50:251
21695992721,3cyclictest25-21ksoftirqd/111:35:581
21695992721,3cyclictest25-21ksoftirqd/110:50:371
21695992721,3cyclictest25-21ksoftirqd/108:05:241
21690992722,3cyclictest9-21ksoftirqd/012:42:570
21690992721,3cyclictest9-21ksoftirqd/009:30:540
21690992721,3cyclictest9-21ksoftirqd/009:20:360
106891270,11ptp4l401ktimersoftd/308:49:453
21708992621,3cyclictest41-21ksoftirqd/308:05:243
21708992620,3cyclictest41-21ksoftirqd/309:46:413
21708992616,7cyclictest17719-21grep13:20:463
21703992621,3cyclictest33-21ksoftirqd/208:45:252
2169599263,3cyclictest25-21ksoftirqd/111:45:331
21695992621,3cyclictest25-21ksoftirqd/112:00:421
21695992621,3cyclictest25-21ksoftirqd/111:10:481
21695992621,3cyclictest25-21ksoftirqd/110:35:421
21695992621,3cyclictest25-21ksoftirqd/110:20:551
21695992621,3cyclictest25-21ksoftirqd/110:15:461
21695992620,3cyclictest25-21ksoftirqd/113:00:311
21695992620,3cyclictest25-21ksoftirqd/111:05:451
21695992620,3cyclictest25-21ksoftirqd/111:05:451
21695992620,3cyclictest25-21ksoftirqd/108:05:411
21695992619,4cyclictest25-21ksoftirqd/109:38:241
21690992621,3cyclictest9-21ksoftirqd/009:15:370
21690992620,3cyclictest9-21ksoftirqd/012:15:560
106891260,1ptp4l401ktimersoftd/309:02:353
21695992520,3cyclictest25-21ksoftirqd/109:05:431
21695992519,3cyclictest25-21ksoftirqd/112:45:301
21695992519,3cyclictest25-21ksoftirqd/112:15:471
21695992519,3cyclictest25-21ksoftirqd/112:05:511
21695992519,3cyclictest25-21ksoftirqd/111:00:451
21695992519,3cyclictest25-21ksoftirqd/109:29:341
21695992518,4cyclictest25-21ksoftirqd/112:33:201
21695992518,4cyclictest25-21ksoftirqd/111:20:571
21695992518,4cyclictest25-21ksoftirqd/109:24:191
21695992518,4cyclictest25-21ksoftirqd/109:00:431
106891250,1ptp4l401ktimersoftd/309:07:093
21708992418,3cyclictest41-21ksoftirqd/308:09:273
21703992419,3cyclictest33-21ksoftirqd/208:30:522
21695992419,3cyclictest25-21ksoftirqd/113:10:411
21695992419,3cyclictest25-21ksoftirqd/113:07:541
21695992419,3cyclictest25-21ksoftirqd/112:20:471
21695992419,3cyclictest25-21ksoftirqd/110:25:431
21695992419,3cyclictest25-21ksoftirqd/110:05:271
21695992419,3cyclictest25-21ksoftirqd/108:15:421
21695992418,3cyclictest25-21ksoftirqd/111:40:451
21695992418,3cyclictest25-21ksoftirqd/109:55:261
21695992418,3cyclictest25-21ksoftirqd/108:15:141
21695992417,4cyclictest25-21ksoftirqd/108:37:131
106891240,1ptp4l401ktimersoftd/312:55:413
106891240,1ptp4l401ktimersoftd/308:25:483
63832230,2sleep10-21swapper/111:30:171
21695992318,3cyclictest25-21ksoftirqd/113:25:491
21695992318,3cyclictest25-21ksoftirqd/112:45:481
21695992318,3cyclictest25-21ksoftirqd/112:45:481
21695992318,3cyclictest25-21ksoftirqd/112:30:291
21695992317,3cyclictest25-21ksoftirqd/113:25:001
21695992317,3cyclictest25-21ksoftirqd/108:42:471
21695992317,3cyclictest25-21ksoftirqd/108:21:111
106891230,1ptp4l401ktimersoftd/309:10:383
21695992217,3cyclictest25-21ksoftirqd/110:55:451
21695992217,3cyclictest25-21ksoftirqd/109:45:261
21695992217,3cyclictest25-21ksoftirqd/109:35:261
21695992217,3cyclictest25-21ksoftirqd/109:10:451
21695992217,3cyclictest25-21ksoftirqd/108:55:371
21695992216,3cyclictest25-21ksoftirqd/108:30:321
2169599219,5cyclictest0-21swapper/108:50:501
2169599212,12cyclictest15452-21diskmemload10:30:381
21695992115,4cyclictest25-21ksoftirqd/112:35:371
2169599210,19cyclictest27131-21ssh12:56:131
21695992014,3cyclictest26787-21grep11:50:421
21695991912,4cyclictest25-21ksoftirqd/110:10:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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