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2025-11-11 - 17:18
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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 Tue Nov 11, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2900721530,4sleep32335199cyclictest11:06:563
2959421510,2sleep30-21swapper/311:48:153
2959421510,2sleep30-21swapper/311:48:153
1773911030,4ptp4l401ktimersoftd/308:10:493
227982780,5sleep09-21ksoftirqd/008:06:580
252122660,5sleep025215-21timerandwakeup11:02:030
247242570,2sleep10-21swapper/108:11:471
247242570,2sleep10-21swapper/108:11:471
23346995749,5cyclictest33-21ksoftirqd/210:26:422
23346995548,4cyclictest33-21ksoftirqd/209:26:412
177391550,1ptp4l401ktimersoftd/312:52:323
225232545,35sleep20-21swapper/208:06:522
169732540,2sleep30-21swapper/310:11:283
23346995346,3cyclictest33-21ksoftirqd/210:31:442
23346995245,4cyclictest33-21ksoftirqd/212:36:432
23346995144,4cyclictest33-21ksoftirqd/213:16:442
23346995144,4cyclictest33-21ksoftirqd/211:11:432
211002514,35sleep10-21swapper/108:06:271
23346994942,4cyclictest33-21ksoftirqd/208:46:402
177391490,1ptp4l401ktimersoftd/313:29:123
23346994840,4cyclictest33-21ksoftirqd/213:11:442
177391480,1ptp4l401ktimersoftd/312:38:293
23346994639,4cyclictest33-21ksoftirqd/208:56:412
2334199450,41cyclictest27049-21grep08:16:431
23346994436,4cyclictest33-21ksoftirqd/209:11:412
23346994335,4cyclictest33-21ksoftirqd/211:51:442
23346994313,3cyclictest33-21ksoftirqd/210:41:532
23341994321,19cyclictest27244-21grep12:26:481
23346994235,4cyclictest33-21ksoftirqd/213:06:442
2334199421,26cyclictest25259-21apt-config09:21:281
23346994135,3cyclictest33-21ksoftirqd/212:21:452
23346994135,3cyclictest33-21ksoftirqd/209:01:392
23346994033,4cyclictest33-21ksoftirqd/211:01:432
23346994032,5cyclictest33-21ksoftirqd/209:46:442
177391400,1ptp4l401ktimersoftd/313:12:033
177391400,1ptp4l401ktimersoftd/310:36:343
23346993934,3cyclictest33-21ksoftirqd/212:16:312
23346993933,3cyclictest33-21ksoftirqd/213:01:432
23346993913,3cyclictest33-21ksoftirqd/211:21:472
2334199391,33cyclictest15056-21apt-get11:31:431
2334199390,23cyclictest13408-21switchtime10:46:571
177391390,1ptp4l401ktimersoftd/313:06:343
177391390,1ptp4l401ktimersoftd/311:18:013
177391390,1ptp4l401ktimersoftd/310:12:183
23346993833,3cyclictest33-21ksoftirqd/209:21:272
2334199382,29cyclictest29019-21apt-get08:21:391
2334199382,28cyclictest18152-21apt-get09:06:391
2334199382,28cyclictest10398-21apt-get12:46:451
2334199380,22cyclictest12240-21latency_hist10:01:281
177391380,1ptp4l401ktimersoftd/313:25:033
177391380,1ptp4l401ktimersoftd/312:16:323
177391380,1ptp4l401ktimersoftd/311:04:063
177391380,1ptp4l401ktimersoftd/310:31:533
177391380,1ptp4l401ktimersoftd/310:30:513
177391380,1ptp4l401ktimersoftd/310:26:273
177391380,1ptp4l401ktimersoftd/310:18:213
23346993730,4cyclictest33-21ksoftirqd/213:26:452
23346993729,4cyclictest33-21ksoftirqd/209:56:402
23346993710,3cyclictest33-21ksoftirqd/211:56:442
2334199372,28cyclictest7124-21apt-get11:21:431
2334199372,28cyclictest14838-21apt-get10:06:411
2334199371,23cyclictest10055-21switchtime08:46:551
2334199370,2cyclictest0-21swapper/113:16:401
2334199370,24cyclictest22516-21latency_hist13:01:321
177391370,1ptp4l401ktimersoftd/313:40:083
177391370,1ptp4l401ktimersoftd/313:06:183
177391370,1ptp4l401ktimersoftd/312:45:383
177391370,1ptp4l401ktimersoftd/312:33:453
177391370,1ptp4l401ktimersoftd/312:16:173
177391370,1ptp4l401ktimersoftd/311:35:023
177391370,1ptp4l401ktimersoftd/311:24:533
177391370,0ptp4l401ktimersoftd/312:50:343
177391370,0ptp4l401ktimersoftd/312:05:493
23346993631,3cyclictest33-21ksoftirqd/211:41:302
23346993630,3cyclictest33-21ksoftirqd/212:51:322
23346993630,3cyclictest33-21ksoftirqd/211:11:302
23346993628,5cyclictest33-21ksoftirqd/208:31:392
23346993626,4cyclictest33-21ksoftirqd/212:01:442
23346993625,8cyclictest33-21ksoftirqd/209:36:502
23346993612,4cyclictest33-21ksoftirqd/208:41:422
2334199362,28cyclictest14833-21apt-get12:11:431
2334199362,27cyclictest7717-21apt-get09:51:381
2334199362,27cyclictest27572-21apt-get11:06:411
2334199362,26cyclictest6372-21apt-get12:41:461
2334199361,21cyclictest16905-21diskmemload11:17:571
177391360,1ptp4l401ktimersoftd/312:58:583
177391360,1ptp4l401ktimersoftd/312:29:323
177391360,1ptp4l401ktimersoftd/312:21:433
177391360,0ptp4l401ktimersoftd/311:40:563
23346993530,3cyclictest33-21ksoftirqd/212:26:492
23346993530,3cyclictest33-21ksoftirqd/210:26:292
23346993530,3cyclictest33-21ksoftirqd/208:26:552
23346993529,3cyclictest33-21ksoftirqd/213:31:472
23346993529,3cyclictest33-21ksoftirqd/213:31:472
23346993527,4cyclictest33-21ksoftirqd/211:46:112
23346993527,4cyclictest33-21ksoftirqd/211:46:112
2334699352,4cyclictest131rcu_sched10:06:512
23346993523,9cyclictest33-21ksoftirqd/211:31:462
23346993523,3cyclictest33-21ksoftirqd/210:51:472
2334199352,26cyclictest31599-21apt-get08:26:371
23341993515,17cyclictest2121-21sh11:15:071
2334199351,31cyclictest10773-21cron13:26:321
2334199351,28cyclictest21352-21apt-get10:16:441
2334199351,27cyclictest3916-21apt-get08:36:391
2334199351,27cyclictest15543-21apt-get13:31:451
2334199351,27cyclictest15543-21apt-get13:31:451
177391350,2ptp4l30770-21kworker/3:213:31:483
177391350,2ptp4l30770-21kworker/3:213:31:483
2334699349,2cyclictest33-21ksoftirqd/209:56:282
23346993429,3cyclictest33-21ksoftirqd/212:36:322
23346993428,3cyclictest33-21ksoftirqd/212:41:512
23346993428,3cyclictest33-21ksoftirqd/210:46:472
23346993428,3cyclictest33-21ksoftirqd/210:16:502
23346993427,4cyclictest33-21ksoftirqd/209:21:462
2334199342,26cyclictest22903-21apt-get13:01:441
2334199341,30cyclictest16905-21diskmemload11:44:581
2334199341,30cyclictest16905-21diskmemload11:44:581
2334199341,29cyclictest22460-21taskset12:21:051
2334199341,27cyclictest0-21swapper/110:56:421
2334199340,30cyclictest21170-21ls10:16:281
2334199340,2cyclictest0-21swapper/111:01:451
177391340,1ptp4l401ktimersoftd/312:07:463
177391340,1ptp4l401ktimersoftd/311:58:293
2334699337,4cyclictest33-21ksoftirqd/209:31:502
23346993328,3cyclictest33-21ksoftirqd/210:11:572
23346993327,3cyclictest33-21ksoftirqd/212:06:552
23346993326,4cyclictest33-21ksoftirqd/210:41:292
23346993323,6cyclictest33-21ksoftirqd/210:01:402
23346993322,9cyclictest33-21ksoftirqd/213:21:472
2334199332,24cyclictest11030-21apt-get08:51:391
23341993314,17cyclictest15061-21df12:51:461
2334199331,27cyclictest25495-21apt-get09:21:401
2334199331,26cyclictest25156-21apt-get10:21:411
23341993311,19cyclictest943-21if_ens309:36:451
2334199330,4cyclictest23644-21ssh13:40:531
2334199330,2cyclictest0-21swapper/108:36:261
2334199330,29cyclictest31277-21basename11:51:431
217622330,5sleep321766-21ptp4l-jitter09:11:503
177391330,1ptp4l401ktimersoftd/311:46:083
177391330,1ptp4l401ktimersoftd/311:46:083
177391330,1ptp4l401ktimersoftd/311:13:113
23346993227,3cyclictest33-21ksoftirqd/212:51:332
23346993227,3cyclictest33-21ksoftirqd/211:47:202
23346993227,3cyclictest33-21ksoftirqd/211:47:202
23346993227,3cyclictest33-21ksoftirqd/211:01:302
23346993227,3cyclictest33-21ksoftirqd/208:41:262
23346993227,3cyclictest33-21ksoftirqd/208:21:262
23346993226,3cyclictest33-21ksoftirqd/212:56:492
23346993226,3cyclictest33-21ksoftirqd/211:16:462
23346993226,3cyclictest33-21ksoftirqd/208:51:452
2334199322,26cyclictest17078-21snmp_o5powerctl10:51:591
2334199322,25cyclictest12593-21snmp_o5powerctl11:26:581
2334199321,27cyclictest20903-21tune2fs09:11:441
2334199321,25cyclictest6306-21apt-get08:41:421
23341993212,16cyclictest29411-21gltestperf10:26:471
23341993211,17cyclictest15977-21ls09:01:411
2334199320,2cyclictest16905-21diskmemload12:37:561
2334199320,2cyclictest0-21swapper/112:06:471
2334199320,2cyclictest0-21swapper/112:01:471
2334199320,2cyclictest0-21swapper/112:01:311
2334199320,2cyclictest0-21swapper/110:06:161
2334199320,2cyclictest0-21swapper/109:41:551
2334199320,2cyclictest0-21swapper/108:56:501
177391320,1ptp4l401ktimersoftd/311:00:573
177391320,1ptp4l401ktimersoftd/310:53:363
177391320,1ptp4l401ktimersoftd/308:29:383
177391320,0ptp4l401ktimersoftd/308:12:573
177391320,0ptp4l401ktimersoftd/308:12:573
2334699317,4cyclictest33-21ksoftirqd/211:26:472
23346993125,3cyclictest33-21ksoftirqd/209:41:432
23346993114,7cyclictest33-21ksoftirqd/213:41:332
2334699310,3cyclictest121rcu_preempt08:16:252
2334699310,3cyclictest121rcu_preempt08:16:252
2334199315,23cyclictest11442-21/usr/sbin/munin13:26:471
2334199315,23cyclictest1110-21irqrtprio10:31:501
2334199312,24cyclictest0-21swapper/111:36:421
2334199312,22cyclictest27592-21apt-get11:46:431
2334199312,22cyclictest27592-21apt-get11:46:431
2334199311,27cyclictest29270-21cups-browsed10:41:531
2334199311,25cyclictest0-21swapper/112:31:441
23341993111,17cyclictest28243-21cstates09:26:431
2334199310,2cyclictest0-21swapper/113:09:121
2334199310,2cyclictest0-21swapper/110:37:371
2334199310,27cyclictest31719-21ps13:11:511
23337993125,3cyclictest9-21ksoftirqd/012:21:310
23337993125,3cyclictest8353-21cron08:46:260
1853913124,3phc2sys41-21ksoftirqd/308:21:263
177391310,9ptp4l401ktimersoftd/313:18:583
177391310,1ptp4l401ktimersoftd/310:48:453
177391310,1ptp4l401ktimersoftd/309:08:543
177391310,1ptp4l401ktimersoftd/308:44:123
177391310,1ptp4l401ktimersoftd/308:32:193
177391310,0ptp4l401ktimersoftd/310:45:253
177391310,0ptp4l401ktimersoftd/310:04:353
177391310,0ptp4l401ktimersoftd/308:57:033
23351993024,3cyclictest41-21ksoftirqd/309:26:433
23346993025,3cyclictest33-21ksoftirqd/212:16:472
23346993024,3cyclictest33-21ksoftirqd/209:06:412
2334199300,27cyclictest30349-21date09:31:271
2334199300,26cyclictest5450-21cut09:46:471
177391300,0ptp4l401ktimersoftd/311:28:343
177391300,0ptp4l401ktimersoftd/308:46:533
177391300,0ptp4l401ktimersoftd/308:39:113
23346992924,3cyclictest33-21ksoftirqd/208:21:402
2334199291,25cyclictest24367-21fgrep12:21:551
23337992924,3cyclictest9-21ksoftirqd/011:11:500
177391290,0ptp4l401ktimersoftd/311:53:583
177391290,0ptp4l401ktimersoftd/309:34:413
23351992822,3cyclictest41-21ksoftirqd/308:21:403
23351992821,4cyclictest41-21ksoftirqd/309:21:273
2333799288,3cyclictest121rcu_preempt13:11:330
23337992823,3cyclictest9-21ksoftirqd/013:16:510
23337992823,3cyclictest9-21ksoftirqd/009:46:480
23337992822,3cyclictest9-21ksoftirqd/011:56:440
23351992721,3cyclictest41-21ksoftirqd/309:23:403
23337992722,3cyclictest9-21ksoftirqd/012:56:490
23337992722,3cyclictest9-21ksoftirqd/011:47:080
23337992722,3cyclictest9-21ksoftirqd/011:47:080
23337992722,3cyclictest9-21ksoftirqd/010:46:290
23337992721,4cyclictest9-21ksoftirqd/013:36:320
23337992721,4cyclictest9-21ksoftirqd/013:36:320
23337992721,3cyclictest9-21ksoftirqd/010:30:560
23337992721,3cyclictest9-21ksoftirqd/010:13:010
23337992720,4cyclictest9-21ksoftirqd/012:42:440
23337992720,4cyclictest9-21ksoftirqd/012:24:100
177391270,1ptp4l401ktimersoftd/309:56:383
177391270,1ptp4l401ktimersoftd/309:48:323
177391270,1ptp4l401ktimersoftd/309:39:263
2333799263,13cyclictest19912-21ssh13:36:460
23337992620,3cyclictest9-21ksoftirqd/011:26:200
23337992620,3cyclictest9-21ksoftirqd/010:49:150
23337992620,3cyclictest9-21ksoftirqd/009:51:380
23337992620,3cyclictest9-21ksoftirqd/008:59:420
23337992619,4cyclictest9-21ksoftirqd/013:31:100
23337992619,4cyclictest9-21ksoftirqd/008:30:370
177391260,1ptp4l401ktimersoftd/308:54:533
23351992520,3cyclictest41-21ksoftirqd/309:51:283
23337992520,3cyclictest9-21ksoftirqd/011:46:300
23337992520,3cyclictest9-21ksoftirqd/011:46:300
23337992519,3cyclictest9-21ksoftirqd/012:51:320
23337992519,3cyclictest9-21ksoftirqd/011:16:510
23337992518,4cyclictest9-21ksoftirqd/010:24:540
23337992518,4cyclictest9-21ksoftirqd/010:01:290
23337992518,4cyclictest9-21ksoftirqd/009:57:440
23337992518,4cyclictest9-21ksoftirqd/009:27:530
23337992518,3cyclictest9-21ksoftirqd/009:13:000
1898522518,3sleep09-21ksoftirqd/010:55:300
177391250,1ptp4l401ktimersoftd/309:02:333
23337992419,3cyclictest9-21ksoftirqd/012:07:390
23337992418,3cyclictest9-21ksoftirqd/012:36:500
23337992418,3cyclictest9-21ksoftirqd/010:08:360
23337992418,3cyclictest9-21ksoftirqd/008:34:020
23337992417,4cyclictest9-21ksoftirqd/009:40:300
23337992417,4cyclictest9-21ksoftirqd/008:37:230
23337992413,5cyclictest101ktimersoftd/011:36:430
177391240,0ptp4l401ktimersoftd/309:43:313
2333799233,8cyclictest30730-1kworker/u9:212:35:350
23337992318,3cyclictest9-21ksoftirqd/008:19:160
23337992318,3cyclictest9-21ksoftirqd/008:12:020
23337992318,3cyclictest9-21ksoftirqd/008:12:020
23337992317,4cyclictest9-21ksoftirqd/010:57:020
23337992317,3cyclictest9-21ksoftirqd/009:46:120
23337992316,4cyclictest9-21ksoftirqd/009:09:020
23337992314,5cyclictest9-21ksoftirqd/008:21:390
23337992217,3cyclictest9-21ksoftirqd/008:47:510
23337992216,3cyclictest9-21ksoftirqd/013:01:450
23337992216,3cyclictest9-21ksoftirqd/010:21:280
23337992215,4cyclictest9-21ksoftirqd/009:24:360
23337992215,4cyclictest9-21ksoftirqd/008:52:240
23337992116,3cyclictest9-21ksoftirqd/012:51:510
23337992116,3cyclictest9-21ksoftirqd/011:06:430
23337992116,3cyclictest9-21ksoftirqd/010:31:490
23337992115,3cyclictest9-21ksoftirqd/011:51:380
23337992115,3cyclictest9-21ksoftirqd/009:04:400
23337992114,5cyclictest9-21ksoftirqd/013:21:520
23337992114,4cyclictest9-21ksoftirqd/009:35:280
23337992114,4cyclictest9-21ksoftirqd/009:17:130
23337992113,4cyclictest11945-21irqrtprio11:26:500
23337992014,3cyclictest9-21ksoftirqd/012:12:280
23337992013,4cyclictest4847-21sh10:36:470
23337992013,4cyclictest15252-21expr11:31:440
23337991913,3cyclictest7348-21cut12:01:470
23337991913,3cyclictest27203-21expr12:26:460
23337991913,3cyclictest1760-21runrttasks13:06:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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