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2026-04-18 - 15:26
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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 Sat Apr 18, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2528821820,4sleep03046999cyclictest12:00:270
2583621720,4sleep13047499cyclictest10:21:111
2171821650,4sleep33048799cyclictest12:29:253
570921330,3sleep03046999cyclictest09:40:430
106891990,3ptp4l401ktimersoftd/308:18:593
106891710,1ptp4l401ktimersoftd/312:31:253
288032690,2sleep20-21swapper/211:30:382
30712650,4sleep23066-21if_err_enp1s013:15:452
30474996555,4cyclictest25-21ksoftirqd/112:05:371
284752650,4sleep3401ktimersoftd/312:02:553
106891650,1ptp4l401ktimersoftd/311:55:463
33982630,2sleep10-21swapper/109:35:431
106891630,1ptp4l401ktimersoftd/312:37:243
106891630,1ptp4l401ktimersoftd/311:01:043
324472610,2sleep10-21swapper/109:30:331
324472610,2sleep10-21swapper/109:30:331
264502590,2sleep30-21swapper/313:40:113
70812580,3sleep10-21swapper/113:20:261
299422580,5sleep029947-21cpuspeed_turbos09:25:340
106891560,2ptp4l401ktimersoftd/310:05:353
301982554,10sleep20-21swapper/208:18:112
106891550,16ptp4l401ktimersoftd/312:58:143
106891550,16ptp4l401ktimersoftd/312:58:143
16502530,1sleep30-21swapper/311:35:413
106891470,0ptp4l401ktimersoftd/310:56:203
106891450,1ptp4l401ktimersoftd/313:33:233
106891440,1ptp4l401ktimersoftd/312:11:043
30487994335,4cyclictest41-21ksoftirqd/308:50:323
3046999432,33cyclictest30727-21apt-get08:20:300
3046999431,33cyclictest30351-21apt-get12:05:370
30487994236,3cyclictest41-21ksoftirqd/311:45:363
30469994217,22cyclictest11466-21sed08:45:370
3046999410,4cyclictest7948-21/usr/sbin/munin10:35:480
3046999403,31cyclictest28956-21apt-get10:25:340
3046999402,30cyclictest9249-21apt-get09:50:300
30469994013,24cyclictest13231-21latency_hist11:15:220
30469994013,24cyclictest13231-21latency_hist11:15:220
3046999400,4cyclictest12339-21sed10:40:400
106891400,1ptp4l401ktimersoftd/310:38:183
106891400,1ptp4l401ktimersoftd/309:00:383
3046999397,21cyclictest1055-21runrttasks09:03:370
3046999393,31cyclictest27661-21apt-get12:35:360
3046999392,30cyclictest21160-21apt-get10:50:340
3046999391,5cyclictest19830-21apt-get13:00:370
30469993914,22cyclictest20149-21ls11:55:230
3046999390,4cyclictest25146-21cut09:15:350
3046999390,4cyclictest20407-21ssh13:33:160
3046999390,3cyclictest31176-21ls13:10:520
106891390,1ptp4l401ktimersoftd/313:46:353
106891390,1ptp4l401ktimersoftd/313:41:273
106891390,1ptp4l401ktimersoftd/311:25:413
3046999382,30cyclictest16242-21apt-get10:45:340
30469993813,22cyclictest6569-21smartctl08:35:360
30469993813,22cyclictest15181-21sh11:50:230
3046999381,31cyclictest0-21swapper/011:00:370
3046999381,30cyclictest21312-21apt-get10:15:340
30469993810,24cyclictest4444-21cut08:30:370
3046999380,4cyclictest8089-21ptp4l09:45:430
3046999380,4cyclictest3441-21mailstats09:35:430
3046999380,4cyclictest2989-21ssh13:15:440
3046999380,4cyclictest22008-21grep11:55:500
3046999380,4cyclictest20169-21ptp4l10:10:440
106891380,1ptp4l401ktimersoftd/312:21:503
106891380,1ptp4l401ktimersoftd/311:32:393
106891380,1ptp4l401ktimersoftd/311:17:323
106891380,1ptp4l401ktimersoftd/310:42:403
106891380,1ptp4l401ktimersoftd/310:10:403
106891380,0ptp4l401ktimersoftd/310:47:093
3046999372,28cyclictest5071-21apt-get12:45:350
30469993713,21cyclictest16012-21sed12:55:450
30469993713,21cyclictest16012-21sed12:55:450
30469993713,20cyclictest4806-21date12:45:240
3046999370,4cyclictest26218-21snmp_o5powerctl13:05:520
3046999370,3cyclictest8572-21cpuspeed_turbos08:40:340
3046999370,3cyclictest25622-21grep10:20:520
106891370,1ptp4l401ktimersoftd/313:20:313
106891370,1ptp4l401ktimersoftd/313:07:433
106891370,1ptp4l401ktimersoftd/313:05:193
106891370,1ptp4l401ktimersoftd/312:46:013
106891370,1ptp4l401ktimersoftd/312:42:393
106891370,1ptp4l401ktimersoftd/312:16:133
106891370,1ptp4l401ktimersoftd/311:40:253
106891370,1ptp4l401ktimersoftd/311:22:003
106891370,1ptp4l401ktimersoftd/311:13:063
106891370,1ptp4l401ktimersoftd/311:13:063
106891370,1ptp4l401ktimersoftd/311:05:243
106891370,1ptp4l401ktimersoftd/311:05:243
106891370,1ptp4l401ktimersoftd/310:54:473
106891370,1ptp4l401ktimersoftd/310:34:433
106891370,1ptp4l401ktimersoftd/310:28:233
106891370,1ptp4l401ktimersoftd/310:20:463
106891370,1ptp4l401ktimersoftd/309:50:203
106891370,1ptp4l401ktimersoftd/309:21:093
106891370,0ptp4l401ktimersoftd/313:25:523
106891370,0ptp4l401ktimersoftd/313:18:343
3046999362,4cyclictest26197-21apt-get10:55:450
3046999362,30cyclictest0-21swapper/012:29:170
30469993613,20cyclictest32115-21/usr/sbin/munin09:30:420
30469993613,20cyclictest32115-21/usr/sbin/munin09:30:420
30469993613,20cyclictest1256-21/usr/sbin/munin08:25:340
3046999360,5cyclictest6820-21memory11:40:430
3046999360,3cyclictest9080-21/usr/sbin/munin12:15:470
3046999360,3cyclictest3337-21vmstat10:30:520
3046999360,3cyclictest25895-21seq12:33:070
290782360,2sleep20-21swapper/213:10:072
106891360,1ptp4l401ktimersoftd/311:54:373
106891360,1ptp4l401ktimersoftd/309:05:393
3046999358,24cyclictest7238-21cat13:20:360
3046999351,6cyclictest10011-21apt-get12:50:370
3046999351,31cyclictest16067-21cat10:05:210
30469993513,19cyclictest14281-21awk08:50:400
3046999351,30cyclictest13682-21latency_hist10:00:210
3046999351,30cyclictest0-21swapper/011:20:330
30469993511,20cyclictest20610-21cut09:05:340
30469993510,21cyclictest18096-21latency_hist11:20:230
3046999350,3cyclictest32386-21ssh11:34:340
3046999350,3cyclictest23383-21diskmemload11:07:570
3046999350,3cyclictest23383-21diskmemload11:07:570
106891350,1ptp4l401ktimersoftd/312:51:423
106891350,0ptp4l401ktimersoftd/312:07:153
30487993427,4cyclictest41-21ksoftirqd/309:55:333
3046999347,24cyclictest23383-21diskmemload13:36:450
3046999347,23cyclictest29168-21taskset09:21:150
3046999346,24cyclictest27111-21tr13:40:390
3046999341,3cyclictest4349-21grep12:10:510
3046999341,29cyclictest13646-21python13:25:490
30469993412,19cyclictest23383-21diskmemload11:37:390
3046999340,3cyclictest31812-21ssh13:45:330
3046999340,3cyclictest24885-21ssh11:25:500
3046999340,2cyclictest23383-21diskmemload12:24:030
106891340,1ptp4l401ktimersoftd/313:14:563
106891340,0ptp4l401ktimersoftd/308:30:543
30487993327,3cyclictest41-21ksoftirqd/308:50:193
30478993323,8cyclictest33-21ksoftirqd/213:45:522
30478993319,11cyclictest33-21ksoftirqd/212:25:432
3046999339,21cyclictest1055-21runrttasks10:09:300
3046999331,5cyclictest15570-21apt-get08:55:320
3046999331,3cyclictest0-21swapper/008:20:190
3046999320,3cyclictest24032-21snmp_o5powerctl09:10:460
30487993124,4cyclictest41-21ksoftirqd/310:00:323
30487993124,3cyclictest41-21ksoftirqd/309:35:203
30487993124,3cyclictest41-21ksoftirqd/309:35:203
30478993125,3cyclictest33-21ksoftirqd/212:10:422
30478993125,3cyclictest33-21ksoftirqd/211:10:222
30478993125,3cyclictest33-21ksoftirqd/211:10:222
106891310,0ptp4l401ktimersoftd/309:51:263
3047899306,14cyclictest2467-21grep09:35:362
301252306,12sleep10-21swapper/108:17:131
30478992924,3cyclictest33-21ksoftirqd/211:50:232
30478992923,3cyclictest33-21ksoftirqd/209:15:402
30478992918,9cyclictest33-21ksoftirqd/213:30:362
30478992917,10cyclictest33-21ksoftirqd/210:39:562
3047499293,15cyclictest10017-21ssh12:50:361
265272290,2sleep30-21swapper/309:15:493
30478992822,4cyclictest33-21ksoftirqd/211:50:392
30478992822,3cyclictest33-21ksoftirqd/212:40:402
30478992817,9cyclictest33-21ksoftirqd/210:55:572
3047899280,6cyclictest30757-21ssh12:05:412
3047499283,14cyclictest12650-21ssh12:20:351
30474992823,3cyclictest25-21ksoftirqd/113:20:421
30474992823,3cyclictest25-21ksoftirqd/113:10:251
30474992823,3cyclictest25-21ksoftirqd/110:55:451
137192280,3sleep2321ktimersoftd/213:25:532
106891280,1ptp4l401ktimersoftd/308:37:073
106891280,0ptp4l401ktimersoftd/308:42:403
30487992720,4cyclictest41-21ksoftirqd/308:22:383
30487992719,4cyclictest41-21ksoftirqd/308:25:313
30478992723,3cyclictest33-21ksoftirqd/212:15:542
30478992722,3cyclictest33-21ksoftirqd/213:35:412
30478992722,3cyclictest33-21ksoftirqd/212:00:232
30478992722,3cyclictest33-21ksoftirqd/210:20:212
30478992722,3cyclictest33-21ksoftirqd/209:45:402
30478992722,3cyclictest33-21ksoftirqd/209:30:322
30478992722,3cyclictest33-21ksoftirqd/209:30:322
30478992721,3cyclictest33-21ksoftirqd/213:00:412
30478992721,3cyclictest33-21ksoftirqd/209:23:512
30478992720,4cyclictest33-21ksoftirqd/210:05:212
3047499274,12cyclictest18491-21ssh11:20:341
30474992722,3cyclictest25-21ksoftirqd/112:30:231
30474992722,3cyclictest25-21ksoftirqd/110:50:211
30474992722,3cyclictest25-21ksoftirqd/108:30:191
30474992721,4cyclictest25-21ksoftirqd/113:25:391
30474992718,6cyclictest25-21ksoftirqd/110:50:461
30487992620,3cyclictest41-21ksoftirqd/309:25:383
30478992621,3cyclictest33-21ksoftirqd/210:25:412
30478992621,3cyclictest33-21ksoftirqd/209:00:382
30478992621,3cyclictest33-21ksoftirqd/208:40:192
30478992620,3cyclictest33-21ksoftirqd/212:35:372
30478992620,3cyclictest33-21ksoftirqd/211:15:222
30478992620,3cyclictest33-21ksoftirqd/211:15:222
30478992620,3cyclictest33-21ksoftirqd/208:30:372
30478992619,3cyclictest16664-21sed12:55:542
30478992619,3cyclictest16664-21sed12:55:542
30474992621,3cyclictest25-21ksoftirqd/113:45:551
30474992621,3cyclictest25-21ksoftirqd/112:40:491
30474992621,3cyclictest25-21ksoftirqd/111:50:441
30474992621,3cyclictest25-21ksoftirqd/110:25:411
30474992620,3cyclictest25-21ksoftirqd/111:03:351
30474992620,3cyclictest25-21ksoftirqd/109:30:201
30474992619,5cyclictest25-21ksoftirqd/112:15:371
30474992619,4cyclictest25-21ksoftirqd/109:22:341
3047499261,3cyclictest121rcu_preempt13:04:551
30487992520,3cyclictest41-21ksoftirqd/309:40:403
30478992520,3cyclictest33-21ksoftirqd/211:40:392
30478992520,3cyclictest33-21ksoftirqd/211:35:382
30478992519,3cyclictest33-21ksoftirqd/210:11:562
30478992519,3cyclictest33-21ksoftirqd/209:11:392
30478992519,3cyclictest33-21ksoftirqd/208:27:412
30478992518,4cyclictest33-21ksoftirqd/211:22:312
30478992518,4cyclictest33-21ksoftirqd/208:58:262
30474992520,3cyclictest25-21ksoftirqd/112:03:111
30474992520,3cyclictest25-21ksoftirqd/111:30:441
30474992520,3cyclictest25-21ksoftirqd/111:25:431
30474992520,3cyclictest25-21ksoftirqd/110:40:341
30474992520,3cyclictest25-21ksoftirqd/110:35:471
30474992520,3cyclictest25-21ksoftirqd/110:30:351
30474992519,4cyclictest25-21ksoftirqd/110:05:401
30474992519,4cyclictest25-21ksoftirqd/109:46:311
30474992518,4cyclictest25-21ksoftirqd/112:36:131
30474992518,4cyclictest25-21ksoftirqd/110:18:061
30474992518,4cyclictest25-21ksoftirqd/110:00:151
249422518,3sleep125-21ksoftirqd/111:35:521
30478992419,3cyclictest33-21ksoftirqd/212:45:372
30478992419,3cyclictest33-21ksoftirqd/211:15:392
30478992419,3cyclictest33-21ksoftirqd/210:50:402
30478992418,3cyclictest33-21ksoftirqd/213:10:542
30478992418,3cyclictest33-21ksoftirqd/209:55:402
30478992418,3cyclictest33-21ksoftirqd/208:43:102
30478992418,3cyclictest33-21ksoftirqd/208:22:192
30478992417,4cyclictest33-21ksoftirqd/210:44:532
30478992417,4cyclictest33-21ksoftirqd/209:40:322
30474992419,3cyclictest25-21ksoftirqd/113:35:451
30474992419,3cyclictest25-21ksoftirqd/111:44:571
30474992418,3cyclictest25-21ksoftirqd/110:02:251
30474992418,3cyclictest25-21ksoftirqd/108:30:361
30474992417,4cyclictest25-21ksoftirqd/109:01:581
3047499240,22cyclictest27906-21kworker/1:308:35:331
106891240,1ptp4l401ktimersoftd/310:15:363
106891240,1ptp4l401ktimersoftd/309:40:203
106891240,1ptp4l401ktimersoftd/309:10:443
106891240,1ptp4l401ktimersoftd/308:55:343
30478992318,3cyclictest33-21ksoftirqd/211:00:432
30478992318,3cyclictest33-21ksoftirqd/209:25:342
30478992317,3cyclictest33-21ksoftirqd/213:23:202
30478992317,3cyclictest33-21ksoftirqd/212:30:522
30478992317,3cyclictest33-21ksoftirqd/210:07:552
30478992316,5cyclictest33-21ksoftirqd/210:45:442
30474992319,2cyclictest25-21ksoftirqd/111:50:231
30474992318,3cyclictest25-21ksoftirqd/112:45:371
30474992318,3cyclictest25-21ksoftirqd/111:15:391
30474992316,5cyclictest25-21ksoftirqd/111:09:321
30474992316,5cyclictest25-21ksoftirqd/111:09:321
30474992316,4cyclictest12556-21ssh11:14:211
30474992316,4cyclictest12556-21ssh11:14:211
30478992217,3cyclictest33-21ksoftirqd/209:05:342
30478992216,3cyclictest33-21ksoftirqd/210:30:412
30478992216,3cyclictest33-21ksoftirqd/210:20:362
30478992214,5cyclictest10719-21tr12:50:432
3047899221,18cyclictest11148-21cut08:45:342
30474992217,3cyclictest25-21ksoftirqd/113:10:551
30474992216,3cyclictest25-21ksoftirqd/108:59:451
30474992216,3cyclictest25-21ksoftirqd/108:50:381
30474992215,4cyclictest18292-21ssh12:58:301
30474992215,4cyclictest18292-21ssh12:58:301
30478992116,3cyclictest33-21ksoftirqd/212:22:292
30478992114,4cyclictest9495-21df09:50:332
30478992114,4cyclictest26932-21/usr/sbin/munin13:40:422
3047499212,11cyclictest20530-21ssh11:55:351
30474992116,3cyclictest25-21ksoftirqd/113:30:371
30474992116,3cyclictest25-21ksoftirqd/112:12:111
30474992115,4cyclictest25-21ksoftirqd/109:10:581
30474992115,4cyclictest25-21ksoftirqd/108:42:551
30474992115,3cyclictest25-21ksoftirqd/108:49:341
30478992013,4cyclictest33-21ksoftirqd/208:53:362
30474992014,4cyclictest25-21ksoftirqd/109:06:001
30474992014,3cyclictest30649-21/usr/sbin/munin08:20:401
30474992013,4cyclictest26202-21pluginstate09:15:431
30478991913,4cyclictest26211-21sh11:27:282
30478991913,3cyclictest33-21ksoftirqd/212:00:412
30474991914,3cyclictest25-21ksoftirqd/109:51:081
30474991914,3cyclictest22594-21sh12:30:291
30474991913,4cyclictest6636-21latency_hist09:45:201
30474991912,4cyclictest25-21ksoftirqd/113:40:401
30474991812,3cyclictest19600-21irqrtprio10:10:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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