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2026-01-10 - 10:57
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot7.osadl.org (updated Sat Jan 10, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
459499986,40cyclictest15-21ksoftirqd/022:23:540
45242988,61sleep04522-21munin-run19:09:300
45242988,61sleep04522-21munin-run19:09:300
4614999756,13cyclictest181rcu_preempt19:24:512
4614999653,11cyclictest181rcu_preempt21:39:352
4614999458,11cyclictest181rcu_preempt22:16:282
4614999458,11cyclictest181rcu_preempt22:16:282
4614999453,10cyclictest181rcu_preempt20:34:312
4602999357,8cyclictest181rcu_preempt20:30:051
4614999255,9cyclictest181rcu_preempt23:51:032
4614999255,9cyclictest181rcu_preempt23:51:032
4614999255,7cyclictest181rcu_preempt23:14:472
41532926,15sleep20-21swapper/219:05:292
41532926,15sleep20-21swapper/219:05:292
4614999161,10cyclictest181rcu_preempt22:46:162
4614999056,8cyclictest181rcu_preempt21:05:042
36692907,59sleep13674-21ntpq19:05:031
36692907,59sleep13674-21ntpq19:05:031
4614998850,8cyclictest181rcu_preempt00:34:112
4614998845,18cyclictest0-21swapper/223:57:092
4614998845,18cyclictest0-21swapper/223:57:092
4602998859,11cyclictest181rcu_preempt00:11:481
4594998851,26cyclictest0-21swapper/023:24:300
4594998851,26cyclictest0-21swapper/023:24:300
4614998763,17cyclictest4585-21cyclictest21:10:022
4614998753,8cyclictest181rcu_preempt22:59:122
4614998750,11cyclictest181rcu_preempt19:20:032
4614998749,7cyclictest181rcu_preempt20:04:512
4602998760,19cyclictest18226-21sh22:12:201
4602998757,8cyclictest181rcu_preempt23:01:281
4602998757,8cyclictest181rcu_preempt23:01:281
4614998656,8cyclictest181rcu_preempt00:02:192
4614998652,8cyclictest181rcu_preempt20:54:502
4614998652,8cyclictest181rcu_preempt20:54:502
4614998651,8cyclictest181rcu_preempt23:00:142
4614998651,8cyclictest181rcu_preempt23:00:142
4614998650,9cyclictest181rcu_preempt00:15:472
4602998661,17cyclictest277-21dbus-daemon00:19:281
4602998653,10cyclictest181rcu_preempt23:53:471
4602998653,10cyclictest181rcu_preempt23:53:471
4602998648,8cyclictest181rcu_preempt22:28:591
460299862,38cyclictest31-21ksoftirqd/121:09:051
333828627,42sleep30-21swapper/319:04:533
333828627,42sleep30-21swapper/319:04:533
4614998558,8cyclictest181rcu_preempt23:39:542
4614998558,8cyclictest181rcu_preempt23:39:542
4614998551,9cyclictest181rcu_preempt00:26:402
4602998558,11cyclictest181rcu_preempt23:25:251
4602998554,8cyclictest181rcu_preempt21:59:511
4602998540,10cyclictest181rcu_preempt21:55:001
459499854,35cyclictest15-21ksoftirqd/023:26:250
4614998451,9cyclictest181rcu_preempt19:34:432
4614998450,9cyclictest181rcu_preempt21:31:012
4614998450,9cyclictest181rcu_preempt21:31:012
4614998443,7cyclictest181rcu_preempt00:23:092
4614998443,7cyclictest181rcu_preempt00:23:092
4614998443,7cyclictest181rcu_preempt00:23:092
4602998465,8cyclictest181rcu_preempt20:57:081
4602998465,8cyclictest181rcu_preempt20:57:081
4602998456,8cyclictest181rcu_preempt22:16:351
4602998456,8cyclictest181rcu_preempt22:16:351
4602998449,26cyclictest26086-21head20:10:031
4602998415,26cyclictest31-21ksoftirqd/100:37:581
4614998356,8cyclictest181rcu_preempt23:26:082
4614998352,7cyclictest181rcu_preempt20:44:562
4614998351,7cyclictest181rcu_preempt22:06:352
4614998350,9cyclictest181rcu_preempt23:33:272
4614998350,9cyclictest181rcu_preempt23:33:272
4602998362,13cyclictest19851-21ssh21:20:561
4602998362,13cyclictest19851-21ssh21:20:561
4602998358,8cyclictest181rcu_preempt22:39:481
4602998358,8cyclictest181rcu_preempt22:39:481
4602998353,9cyclictest181rcu_preempt22:08:201
4602998350,10cyclictest181rcu_preempt20:24:481
4602998337,11cyclictest181rcu_preempt23:59:111
4602998337,11cyclictest181rcu_preempt23:59:111
4594998362,15cyclictest586-21latency_hist20:34:300
4614998262,8cyclictest181rcu_preempt19:51:192
4614998252,8cyclictest181rcu_preempt21:54:592
4614998251,8cyclictest181rcu_preempt23:35:512
4614998250,8cyclictest181rcu_preempt23:45:562
4614998248,9cyclictest181rcu_preempt22:31:422
4614998248,9cyclictest181rcu_preempt22:31:422
4614998246,8cyclictest181rcu_preempt00:06:092
4614998245,10cyclictest181rcu_preempt23:11:432
4602998263,11cyclictest0-21swapper/121:25:041
4602998257,16cyclictest6918-21systemd-run21:54:281
4602998253,9cyclictest181rcu_preempt21:12:171
4594998236,8cyclictest0-21swapper/022:34:420
4614998155,8cyclictest181rcu_preempt20:49:542
4614998149,8cyclictest181rcu_preempt19:15:012
4614998148,8cyclictest181rcu_preempt00:13:392
4614998146,7cyclictest181rcu_preempt21:48:502
4594998166,8cyclictest0-21swapper/023:34:510
4594998159,11cyclictest0-21swapper/023:14:290
4614998060,14cyclictest18010-21apt-key21:19:302
4614998059,15cyclictest4585-21cyclictest22:40:052
4614998059,15cyclictest4585-21cyclictest22:40:052
4614998055,19cyclictest3769-21latency_hist20:44:302
4614998054,9cyclictest181rcu_preempt19:54:522
4614998053,8cyclictest181rcu_preempt20:14:442
4614998049,10cyclictest181rcu_preempt23:21:322
4614998049,10cyclictest181rcu_preempt23:21:322
4614998047,8cyclictest181rcu_preempt21:20:292
4614998047,8cyclictest181rcu_preempt21:20:292
4614998034,9cyclictest0-21swapper/200:38:412
4602998056,14cyclictest0-21swapper/119:24:311
4602998054,8cyclictest181rcu_preempt20:59:511
4594998039,25cyclictest4585-21cyclictest20:29:310
4614997943,8cyclictest181rcu_preempt22:26:582
4602997965,8cyclictest0-21swapper/100:24:511
4602997958,14cyclictest4585-21cyclictest23:08:141
4594997962,11cyclictest277-21dbus-daemon00:04:280
459499793,36cyclictest15-21ksoftirqd/020:21:230
461899783,63cyclictest27497-21chrt21:34:383
4614997849,9cyclictest181rcu_preempt22:02:272
4614997847,10cyclictest181rcu_preempt23:06:252
4602997863,8cyclictest0-21swapper/120:44:531
4602997858,8cyclictest181rcu_preempt00:33:181
4602997848,8cyclictest181rcu_preempt00:07:111
4602997834,20cyclictest301ktimers/100:24:291
4602997834,20cyclictest301ktimers/100:24:291
4602997834,20cyclictest301ktimers/100:24:291
4602997834,11cyclictest181rcu_preempt23:44:341
459499784,22cyclictest10415-21kworker/u17:1+rpciod21:19:400
459499784,22cyclictest10415-21kworker/u17:1+rpciod21:19:400
4614997752,7cyclictest181rcu_preempt22:22:002
4614997748,20cyclictest31473-21latency_hist20:29:302
4614997745,11cyclictest181rcu_preempt21:24:452
461899763,57cyclictest28940-21taskset22:30:263
461899763,57cyclictest28940-21taskset22:30:263
460299767,27cyclictest31-21ksoftirqd/119:33:561
4602997656,13cyclictest4585-21cyclictest19:54:281
4602997654,10cyclictest181rcu_preempt21:31:231
4602997654,10cyclictest181rcu_preempt21:31:231
4602997640,16cyclictest0-21swapper/121:44:531
4594997658,11cyclictest11795-21diskmemload22:44:450
4594997657,9cyclictest0-21swapper/023:49:300
459499765,24cyclictest15-21ksoftirqd/022:31:160
459499765,24cyclictest15-21ksoftirqd/022:31:160
459499764,38cyclictest15-21ksoftirqd/020:50:000
459499763,35cyclictest15-21ksoftirqd/021:54:390
4614997553,8cyclictest181rcu_preempt20:19:422
4614997549,9cyclictest181rcu_preempt22:54:032
4614997546,9cyclictest181rcu_preempt22:35:422
4614997544,8cyclictest181rcu_preempt19:10:012
4614997544,8cyclictest181rcu_preempt19:10:012
4614997543,7cyclictest181rcu_preempt22:12:312
4614997542,9cyclictest58-21kcompactd021:38:322
460299757,26cyclictest31-21ksoftirqd/120:40:331
4602997562,9cyclictest1794-21kworker/u19:1-events_unbound22:59:041
4602997546,9cyclictest181rcu_preempt19:59:281
4602997529,29cyclictest31912-21cut22:34:521
4594997558,9cyclictest0-21swapper/022:09:520
4594997558,10cyclictest0-21swapper/022:50:010
4594997557,9cyclictest0-21swapper/020:09:590
4594997553,7cyclictest181rcu_preempt00:17:220
4594997552,11cyclictest0-21swapper/019:54:290
4594997541,7cyclictest181rcu_preempt21:15:530
459499752,27cyclictest15-21ksoftirqd/023:16:140
4602997457,10cyclictest0-21swapper/123:10:391
4602997451,16cyclictest29838-21timerandwakeup22:30:511
4602997451,16cyclictest29838-21timerandwakeup22:30:511
4602997444,7cyclictest181rcu_preempt21:39:161
4602997433,10cyclictest181rcu_preempt23:37:541
459499747,35cyclictest15-21ksoftirqd/022:29:150
459499746,29cyclictest15-21ksoftirqd/019:31:070
4594997455,9cyclictest0-21swapper/021:49:440
4594997436,18cyclictest32196-21ssh21:41:320
4594997424,25cyclictest15-21ksoftirqd/022:14:380
4594997424,25cyclictest15-21ksoftirqd/022:14:380
459499742,37cyclictest15-21ksoftirqd/020:59:530
461899734,34cyclictest16860-21chrt23:55:443
461899734,34cyclictest16860-21chrt23:55:443
461899733,56cyclictest16629-21chrt19:44:313
461899733,29cyclictest27562-21taskset23:20:013
461899733,29cyclictest27562-21taskset23:20:013
4614997347,10cyclictest181rcu_preempt19:39:472
4614997346,8cyclictest181rcu_preempt19:59:452
4602997358,8cyclictest0-21swapper/122:44:541
4602997354,9cyclictest0-21swapper/119:35:021
459499736,31cyclictest15-21ksoftirqd/019:34:560
4594997360,6cyclictest0-21swapper/000:19:560
4594997360,6cyclictest0-21swapper/000:19:560
4594997360,6cyclictest0-21swapper/000:19:560
4594997356,8cyclictest0-21swapper/021:25:000
4594997354,12cyclictest297-21systemd-logind22:44:280
4594997354,12cyclictest297-21systemd-logind22:44:280
459499735,36cyclictest15-21ksoftirqd/020:04:550
459499734,28cyclictest15-21ksoftirqd/020:04:310
4594997335,18cyclictest22215-21ssh00:04:570
4594997334,19cyclictest9061-21ssh00:36:510
461899724,53cyclictest0-21swapper/323:39:393
461899724,53cyclictest0-21swapper/323:39:393
461899724,53cyclictest0-21swapper/322:19:373
4614997253,9cyclictest0-21swapper/219:29:442
4614997251,8cyclictest181rcu_preempt20:09:442
4614997250,11cyclictest0-21swapper/221:50:002
4602997257,9cyclictest0-21swapper/123:39:591
4602997257,9cyclictest0-21swapper/123:39:591
4602997254,10cyclictest0-21swapper/123:59:471
4602997253,13cyclictest10974-21sh22:54:181
4602997252,9cyclictest0-21swapper/123:29:501
4602997252,9cyclictest0-21swapper/123:29:501
4602997251,9cyclictest0-21swapper/119:09:481
4602997251,9cyclictest0-21swapper/119:09:481
4602997249,12cyclictest0-21swapper/120:14:451
4602997234,10cyclictest181rcu_preempt19:25:051
4602997232,17cyclictest18145-21apt-config19:49:281
460299722,34cyclictest31-21ksoftirqd/121:16:491
459499726,35cyclictest15-21ksoftirqd/022:03:030
4594997255,8cyclictest0-21swapper/020:15:020
4594997254,9cyclictest0-21swapper/023:30:060
4594997254,9cyclictest0-21swapper/023:30:060
459499724,38cyclictest15-21ksoftirqd/023:40:040
459499724,38cyclictest15-21ksoftirqd/023:40:040
4594997236,17cyclictest8809-21irqstats19:19:500
459499723,36cyclictest15-21ksoftirqd/020:43:300
459499723,35cyclictest15-21ksoftirqd/020:49:180
459499723,35cyclictest15-21ksoftirqd/019:48:460
461899714,55cyclictest15947-21taskset22:09:233
461899713,55cyclictest13384-21taskset19:34:433
461899713,38cyclictest23752-21taskset23:14:413
4614997151,8cyclictest181rcu_preempt19:46:432
461499713,24cyclictest39-21ksoftirqd/220:31:462
4602997150,11cyclictest0-21swapper/119:19:321
4594997152,10cyclictest0-21swapper/023:54:430
4594997152,10cyclictest0-21swapper/023:54:430
459499714,34cyclictest15-21ksoftirqd/000:26:020
4594997135,9cyclictest181rcu_preempt20:39:100
4594997134,17cyclictest8167-21users20:55:030
4594997134,17cyclictest8167-21users20:55:030
4594997134,17cyclictest58-21kcompactd019:26:050
459499713,35cyclictest15-21ksoftirqd/019:41:590
459499713,26cyclictest15-21ksoftirqd/022:04:440
461899703,55cyclictest18593-21chrt19:49:383
461899703,54cyclictest28909-21chrt00:15:303
461899703,53cyclictest21312-21chrt00:04:283
461899703,52cyclictest20466-21chrt23:09:303
461899703,34cyclictest26689-21chrt21:33:083
461899703,34cyclictest26689-21chrt21:33:083
461899702,35cyclictest7810-21chrt21:54:563
4614997050,9cyclictest181rcu_preempt20:59:512
4602997052,9cyclictest0-21swapper/120:09:301
4602997049,12cyclictest0-21swapper/119:40:011
4602997034,8cyclictest181rcu_preempt20:20:001
4602997033,7cyclictest181rcu_preempt20:02:221
460299703,34cyclictest31-21ksoftirqd/122:23:191
460299702,26cyclictest31-21ksoftirqd/120:35:331
4594997055,8cyclictest0-21swapper/023:04:470
4594997054,7cyclictest0-21swapper/021:29:440
4594997054,7cyclictest0-21swapper/021:29:440
4594997050,11cyclictest0-21swapper/022:59:450
4594997050,11cyclictest0-21swapper/022:59:450
4594997044,7cyclictest181rcu_preempt21:39:220
459499704,34cyclictest15-21ksoftirqd/019:13:240
459499704,34cyclictest15-21ksoftirqd/019:13:240
4594997033,9cyclictest181rcu_preempt21:04:460
459499703,36cyclictest15-21ksoftirqd/019:54:590
459499702,35cyclictest15-21ksoftirqd/021:47:130
461899693,54cyclictest20544-21taskset22:15:233
461899693,54cyclictest20544-21taskset22:15:233
461899693,53cyclictest32637-21chrt21:42:443
461899693,52cyclictest14854-21taskset21:14:283
461899693,35cyclictest31312-21taskset00:19:563
461899693,35cyclictest31312-21taskset00:19:563
461899693,35cyclictest31312-21taskset00:19:563
461899693,34cyclictest23156-21chrt21:26:443
461899692,52cyclictest26880-21chrt00:13:153
461899692,35cyclictest1508-21chrt23:30:103
461899692,35cyclictest1508-21chrt23:30:103
4602996950,9cyclictest0-21swapper/123:20:021
4602996950,9cyclictest0-21swapper/123:20:021
459499694,30cyclictest15-21ksoftirqd/000:09:400
459499693,29cyclictest15-21ksoftirqd/023:51:060
459499693,29cyclictest15-21ksoftirqd/023:51:060
4594996929,8cyclictest181rcu_preempt00:30:170
459499692,31cyclictest15-21ksoftirqd/019:14:500
461899685,48cyclictest0-21swapper/322:49:403
461899685,45cyclictest0-21swapper/319:59:413
461899683,50cyclictest23518-21taskset20:04:403
461899683,34cyclictest26047-21chrt20:10:023
461899682,36cyclictest17427-21taskset22:10:083
461899682,32cyclictest21186-21taskset21:24:293
461899682,32cyclictest21186-21taskset21:24:293
461899682,30cyclictest10580-21chrt21:04:443
4602996850,9cyclictest0-21swapper/123:14:451
4602996847,11cyclictest0-21swapper/121:39:431
4594996854,8cyclictest0-21swapper/022:54:440
461899674,35cyclictest0-21swapper/323:09:503
461899674,30cyclictest32150-21chrt22:34:563
461899674,30cyclictest25801-21taskset22:24:513
461899673,50cyclictest10252-21taskset21:59:383
461899673,35cyclictest12209-21taskset23:49:283
461899673,31cyclictest30762-21chrt23:25:033
461899672,53cyclictest3986-21chrt22:41:453
461899672,53cyclictest3986-21chrt22:41:453
461899672,33cyclictest1900-21chrt20:37:233
461899672,30cyclictest3072-21chrt00:27:023
459499672,30cyclictest15-21ksoftirqd/021:09:330
461899665,47cyclictest0-21swapper/319:14:413
461899664,49cyclictest0-21swapper/323:49:403
461899664,49cyclictest0-21swapper/323:49:403
461899663,51cyclictest5905-21taskset19:11:433
461899663,51cyclictest5905-21taskset19:11:433
461899663,30cyclictest10625-21chrt19:25:003
461899662,32cyclictest6738-21chrt20:52:133
461899654,42cyclictest0-21swapper/320:54:393
461899654,42cyclictest0-21swapper/320:54:393
461899653,50cyclictest20318-21taskset19:54:443
461899653,33cyclictest7107-21taskset22:47:003
461899653,30cyclictest9374-21chrt20:59:583
461899653,30cyclictest10026-21chrt00:39:263
461899652,32cyclictest7026-21chrt00:34:283
461899652,32cyclictest23399-21taskset00:06:593
461899652,31cyclictest4129-21chrt20:44:483
4602996545,8cyclictest181rcu_preempt20:51:171
461899643,29cyclictest5707-21chrt21:51:153
461899642,30cyclictest4536-21chrt23:35:093
461899635,45cyclictest113952sleep322:54:433
461899633,29cyclictest2369-21taskset20:39:383
461899633,29cyclictest16687-21chrt21:16:183
461899632,43cyclictest0-21swapper/319:45:123
461899632,29cyclictest3149-21chrt21:47:353
461899622,30cyclictest16788-21chrt23:03:343
461899622,30cyclictest16788-21chrt23:03:343
461899622,29cyclictest9764-21chrt19:24:063
461899615,43cyclictest0-21swapper/320:29:443
461899613,27cyclictest31055-21chrt20:26:223
461899612,28cyclictest26700-21taskset20:14:363
461899612,27cyclictest12913-21chrt19:33:183
461899603,30cyclictest28371-21chrt20:19:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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