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2026-05-15 - 19:20
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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 Fri May 15, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13484991112,76cyclictest16576-21apt-get11:36:240
1308121046,15sleep10-21swapper/106:57:381
134849910370,22cyclictest26958-21latency_hist07:41:110
134849910263,31cyclictest2374-21systemd-journal11:16:290
134969910077,16cyclictest13475-21cyclictest11:21:411
13504999980,13cyclictest13175-21processes08:36:402
1349699982,56cyclictest15637-21cut10:41:101
13496999759,31cyclictest13942-21idleruntime-cro08:41:071
1348499963,66cyclictest24994-21ssh10:56:240
13504999577,11cyclictest5907-21cron09:31:072
125752958,62sleep012582-21awk06:56:470
1348499946,49cyclictest15-21ksoftirqd/008:33:400
13484999416,43cyclictest15-21ksoftirqd/009:39:280
13496999355,32cyclictest297-21systemd-logind08:21:081
13496999269,15cyclictest14185-21/usr/sbin/munin08:41:281
1349699923,53cyclictest21270-21seq11:43:281
1349699923,53cyclictest21270-21seq11:43:281
1349699923,49cyclictest15158-21seq11:33:401
1349699913,51cyclictest32348-21ssh11:07:421
13496999117,39cyclictest20419-21diskmemload11:29:391
13496999117,39cyclictest20419-21diskmemload11:29:391
1349699903,52cyclictest25102-21seq09:07:301
1349699902,48cyclictest5992-21ssh10:24:381
1349699902,48cyclictest5992-21ssh10:24:381
1349699894,74cyclictest0-21swapper/112:11:221
1349699894,74cyclictest0-21swapper/112:11:221
1349699893,51cyclictest16834-21seq08:47:091
1349699893,51cyclictest16834-21seq08:47:091
1349699893,49cyclictest25057-21seq07:35:081
1349699892,50cyclictest960-21seq12:04:111
1349699892,50cyclictest21862-21seq07:25:401
1349699892,46cyclictest0-21swapper/109:29:311
1348499896,71cyclictest29806-21apt-get10:11:220
13504998864,18cyclictest21874-21cstates10:51:242
1349699882,50cyclictest8911-21seq08:24:091
1349699882,46cyclictest522-21seq07:58:171
13484998834,27cyclictest15-21ksoftirqd/007:12:040
1349699873,54cyclictest24301-21seq11:48:391
1349699872,51cyclictest12037-21seq08:32:351
1349699872,48cyclictest28640-21seq10:07:521
1349699872,48cyclictest28640-21seq10:07:521
1349699872,48cyclictest23456-21seq07:30:301
1349699872,47cyclictest26466-21runrttasks10:57:531
1349699872,46cyclictest32370-21seq09:21:041
1349699872,46cyclictest32370-21seq09:21:041
13484998711,44cyclictest15-21ksoftirqd/010:41:100
13496998666,11cyclictest0-21swapper/107:41:281
1349699862,49cyclictest2163-21seq08:03:351
1349699862,47cyclictest20127-21seq08:57:421
1349699862,47cyclictest20127-21seq08:57:421
1349699862,46cyclictest29412-21seq11:02:481
1349699862,46cyclictest29412-21seq11:02:481
1349699858,46cyclictest26183-21seq10:04:201
13496998546,32cyclictest0-21swapper/112:21:061
1349699853,51cyclictest16721-21seq07:06:531
1349699852,47cyclictest19864-21seq09:53:181
13484998559,16cyclictest20468-21latency_hist07:21:100
13484998552,12cyclictest181rcu_preempt08:41:280
1348499853,73cyclictest4519-21apt-get08:11:500
13504998466,11cyclictest2374-21systemd-journal11:44:272
13504998466,11cyclictest2374-21systemd-journal11:44:272
13496998462,12cyclictest0-21swapper/110:31:301
13496998462,12cyclictest0-21swapper/110:31:301
13496998437,23cyclictest26943-21kworker/u17:1-nfsiod11:15:181
13496998437,23cyclictest26943-21kworker/u17:1-nfsiod11:15:181
1349699842,43cyclictest23922-21runrttasks10:54:451
13496998341,35cyclictest0-21swapper/108:11:071
1349699832,46cyclictest352-21runrttasks12:06:551
1348499833,43cyclictest15-21ksoftirqd/008:37:050
13496998267,8cyclictest0-21swapper/107:51:421
13496998267,8cyclictest0-21swapper/107:51:421
13496998259,14cyclictest2374-21systemd-journal12:22:261
13496998214,36cyclictest352-21runrttasks11:54:311
13496998141,33cyclictest0-21swapper/111:37:211
13496998112,45cyclictest18629-21seq08:54:101
13484998159,14cyclictest2374-21systemd-journal09:48:270
1348499814,52cyclictest15-21ksoftirqd/007:46:420
1348499812,43cyclictest15-21ksoftirqd/008:47:330
1348499812,43cyclictest15-21ksoftirqd/008:47:330
13504998063,12cyclictest11891-21latency_hist09:41:092
13504998059,10cyclictest0-21swapper/207:46:292
13484998010,44cyclictest15-21ksoftirqd/008:07:080
13504997963,9cyclictest0-21swapper/212:06:292
13504997962,11cyclictest25240-21/usr/sbin/munin11:51:072
13504997953,20cyclictest16032-21latency_hist11:36:102
13496997960,10cyclictest0-21swapper/112:26:401
13496997960,10cyclictest0-21swapper/112:26:401
1349699793,63cyclictest15202-21ssh09:46:191
1349699792,44cyclictest29945-21runrttasks07:51:001
13484997915,35cyclictest15-21ksoftirqd/007:24:510
1351099784,35cyclictest0-21swapper/310:11:293
13504997862,8cyclictest0-21swapper/207:01:322
13504997860,9cyclictest0-21swapper/208:16:292
1349699783,61cyclictest25417-21apt-get07:36:181
1349699783,46cyclictest352-21runrttasks09:02:031
13484997858,15cyclictest790-21kworker/u19:0+events_unbound10:01:060
13484997853,18cyclictest13475-21cyclictest12:21:280
13484997813,39cyclictest15-21ksoftirqd/010:07:560
13484997813,39cyclictest15-21ksoftirqd/010:07:560
13504997762,8cyclictest0-21swapper/211:37:242
13504997762,8cyclictest0-21swapper/209:46:232
13504997761,11cyclictest16287-21kworker/u18:2-writeback07:41:352
13504997757,11cyclictest0-21swapper/207:51:292
13504997757,11cyclictest0-21swapper/207:51:292
13496997733,36cyclictest0-21swapper/109:14:271
1349699772,45cyclictest352-21runrttasks07:13:011
13484997756,12cyclictest7960-21rm12:16:210
13484997755,16cyclictest9668-21latency_hist10:31:100
13484997751,18cyclictest17176-21latency_hist07:11:090
1340227713,40sleep213416-21munin-run07:01:092
13504997659,7cyclictest0-21swapper/207:56:412
13504997657,14cyclictest11359-21latency12:21:312
1349699764,64cyclictest19720-21/usr/sbin/munin10:46:431
1349699762,45cyclictest352-21runrttasks09:35:391
1348499766,34cyclictest15-21ksoftirqd/009:30:110
13484997654,15cyclictest20419-21diskmemload11:11:080
1348499763,32cyclictest4969-21acpi12:11:180
1348499763,32cyclictest4969-21acpi12:11:180
1348499762,39cyclictest15-21ksoftirqd/011:48:270
1348499762,37cyclictest15-21ksoftirqd/007:05:190
13504997563,9cyclictest13475-21cyclictest10:56:332
13504997561,7cyclictest0-21swapper/208:41:322
13504997559,7cyclictest0-21swapper/207:36:292
1349699753,66cyclictest0-21swapper/111:16:231
13496997535,34cyclictest0-21swapper/109:21:291
1349699753,43cyclictest352-21runrttasks07:05:401
13496997532,36cyclictest0-21swapper/110:11:201
1349699752,43cyclictest352-21runrttasks08:30:201
13484997550,16cyclictest20621-21latency_hist09:01:110
13484997550,16cyclictest20621-21latency_hist09:01:110
13484997550,16cyclictest1631-21cron12:06:060
1348499753,38cyclictest15-21ksoftirqd/009:01:590
1348499752,46cyclictest15-21ksoftirqd/009:52:170
1348499752,34cyclictest15-21ksoftirqd/008:28:010
13496997458,10cyclictest20419-21diskmemload09:40:581
13496997436,32cyclictest277-21dbus-daemon12:01:071
1349699743,61cyclictest0-21swapper/107:16:181
1349699742,44cyclictest3512-21seq10:21:021
13496997423,41cyclictest16276-21sed10:41:311
13496997423,41cyclictest16276-21sed10:41:311
1348499749,40cyclictest15-21ksoftirqd/011:22:460
1351099737,33cyclictest0-21swapper/311:36:233
13504997358,8cyclictest0-21swapper/208:06:072
13504997354,13cyclictest2374-21systemd-journal10:21:072
13504997354,13cyclictest15180-21sshd10:43:262
13504997354,13cyclictest15180-21sshd10:43:262
13504997353,14cyclictest25775-21fschecks_count11:51:282
13504997351,15cyclictest26630-21latency_hist09:11:112
13504997346,21cyclictest20419-21diskmemload10:29:372
13504997342,23cyclictest10562-21modprobe12:21:062
13504997321,22cyclictest31825-21cat12:01:312
13504997318,18cyclictest181rcu_preempt09:33:502
1348499735,41cyclictest15-21ksoftirqd/008:21:500
13484997351,15cyclictest24444-21apt-key10:56:080
1348499733,41cyclictest15-21ksoftirqd/007:45:530
1348499733,35cyclictest23708-21/usr/sbin/munin09:06:400
1348499733,35cyclictest15-21ksoftirqd/011:35:590
1348499732,36cyclictest15-21ksoftirqd/012:28:140
1348499732,36cyclictest15-21ksoftirqd/012:28:140
13484997315,30cyclictest15-21ksoftirqd/008:01:450
13504997258,8cyclictest0-21swapper/208:21:322
13504997253,9cyclictest0-21swapper/209:51:432
13504997253,13cyclictest21318-21cstates09:56:242
1350499724,57cyclictest300-21rs:main2
1350499724,34cyclictest0-21swapper/207:12:492
13496997254,12cyclictest20419-21diskmemload10:26:411
1349699723,58cyclictest4519-21apt-get08:11:181
13484997253,13cyclictest20419-21diskmemload09:21:390
13484997237,10cyclictest181rcu_preempt11:53:080
1348499723,47cyclictest15-21ksoftirqd/008:18:500
1348499723,29cyclictest10304-21sort10:31:340
1348499723,29cyclictest10304-21sort10:31:340
1348499722,41cyclictest15-21ksoftirqd/007:52:420
1348499722,41cyclictest15-21ksoftirqd/007:52:420
1348499722,41cyclictest15-21ksoftirqd/007:27:060
13484997218,6cyclictest0-21swapper/009:16:240
13484997218,6cyclictest0-21swapper/009:16:240
1351099718,37cyclictest0-21swapper/310:56:233
13504997158,9cyclictest13475-21cyclictest10:21:352
13504997158,9cyclictest13475-21cyclictest10:21:352
1349699713,39cyclictest352-21runrttasks09:44:301
13484997116,24cyclictest15-21ksoftirqd/010:44:520
13484997116,24cyclictest15-21ksoftirqd/010:44:520
13504997059,7cyclictest0-21swapper/207:21:252
13504997053,11cyclictest277-21dbus-daemon09:26:082
13504997051,9cyclictest0-21swapper/209:11:442
13504997051,13cyclictest19230-21latency10:46:322
13504997050,9cyclictest0-21swapper/208:11:112
13504997049,14cyclictest13475-21cyclictest07:35:582
13504997043,19cyclictest0-21swapper/212:01:092
13484997049,16cyclictest20231-21processes11:41:390
13484997049,16cyclictest20231-21processes11:41:390
13484997047,15cyclictest30745-21latency_hist11:06:100
13484997047,15cyclictest30745-21latency_hist11:06:100
1348499703,48cyclictest2469-21grep11:11:430
1348499703,48cyclictest2469-21grep11:11:430
1348499703,37cyclictest24975-21ssh10:01:420
1348499703,34cyclictest19323-21ntpq10:46:350
13484997016,11cyclictest0-21swapper/009:14:440
13484997011,28cyclictest15-21ksoftirqd/008:53:210
13504996955,10cyclictest13475-21cyclictest10:08:022
13504996955,10cyclictest13475-21cyclictest10:08:022
13504996941,21cyclictest12942-21mailstats09:41:402
1348499696,37cyclictest15-21ksoftirqd/010:25:590
1348499696,37cyclictest15-21ksoftirqd/010:25:590
13484996943,12cyclictest181rcu_preempt07:56:390
13484996912,36cyclictest15-21ksoftirqd/009:44:290
13504996854,7cyclictest0-21swapper/208:56:342
13504996854,7cyclictest0-21swapper/208:56:342
13504996851,8cyclictest0-21swapper/210:36:302
13504996851,8cyclictest0-21swapper/209:16:282
13504996851,8cyclictest0-21swapper/209:16:282
13504996849,9cyclictest0-21swapper/211:01:432
13504996849,9cyclictest0-21swapper/211:01:432
13504996841,7cyclictest181rcu_preempt11:23:072
1348499683,34cyclictest15-21ksoftirqd/009:34:130
1348499682,53cyclictest352-21runrttasks10:20:470
13504996747,10cyclictest0-21swapper/210:06:082
13504996737,21cyclictest10676-21modprobe08:31:072
1350499672,26cyclictest5184-21grep11:16:422
1349699672,60cyclictest0-21swapper/109:56:221
13484996720,25cyclictest15-21ksoftirqd/011:26:590
13484996720,25cyclictest15-21ksoftirqd/011:26:590
126612677,36sleep30-21swapper/306:56:503
13504996652,8cyclictest0-21swapper/207:06:442
13504996646,14cyclictest7597-21sh12:16:072
13504996646,14cyclictest7597-21sh12:16:072
13504996640,19cyclictest0-21swapper/211:06:302
13504996639,20cyclictest0-21swapper/211:26:442
13504996639,20cyclictest0-21swapper/211:26:442
1348499663,31cyclictest2272-21tune2fs12:06:300
13484996611,20cyclictest161ktimers/011:56:200
13504996548,8cyclictest0-21swapper/208:51:402
13504996547,12cyclictest14446-21ntp_kernel_pll_12:26:332
13504996547,12cyclictest14446-21ntp_kernel_pll_12:26:332
1350499653,28cyclictest0-21swapper/210:14:412
13504996447,8cyclictest0-21swapper/209:01:422
13504996446,9cyclictest0-21swapper/208:46:382
13504996446,9cyclictest0-21swapper/208:46:382
13504996430,25cyclictest9964-21cstates10:31:252
13504996430,25cyclictest9964-21cstates10:31:252
1350499642,28cyclictest352-21runrttasks08:11:292
1348499642,31cyclictest15-21ksoftirqd/007:33:020
13504996346,8cyclictest0-21swapper/207:16:412
1351099626,41cyclictest0-21swapper/308:12:243
13504996043,12cyclictest0-21swapper/207:26:412
13504995945,8cyclictest0-21swapper/211:11:302
13504995945,8cyclictest0-21swapper/211:11:302
1351099584,38cyclictest7966-21chrt08:21:283
1351099573,40cyclictest15023-21chrt07:06:073
1351099553,36cyclictest3291-21chrt12:07:223
1351099543,35cyclictest5622-21chrt12:11:403
1351099543,35cyclictest5622-21chrt12:11:403
1351099543,35cyclictest23827-21chrt07:31:223
1351099542,36cyclictest26941-21chrt07:41:103
1351099534,35cyclictest17615-21chrt07:11:303
1351099533,38cyclictest16012-21taskset10:41:273
1351099533,38cyclictest16012-21taskset10:41:273
1351099533,35cyclictest20811-21taskset07:21:303
1351099532,37cyclictest19062-21chrt07:16:243
1351099523,37cyclictest31480-21chrt12:01:223
1351099523,34cyclictest17891-21chrt08:51:333
13510995228,17cyclictest96672sleep310:31:113
1351099522,38cyclictest897-21taskset11:10:333
1351099522,33cyclictest18065-21chrt09:51:103
1351099514,36cyclictest28932-21chrt10:08:403
1351099514,36cyclictest28932-21chrt10:08:403
1351099514,34cyclictest23205-21chrt11:46:403
1351099513,37cyclictest9623-21chrt09:36:313
1351099513,37cyclictest10072-21chrt12:19:423
1351099513,36cyclictest6536-21chrt10:26:073
1351099513,36cyclictest6536-21chrt10:26:073
1351099513,36cyclictest32623-21chrt07:56:423
1351099513,35cyclictest15462-21chrt11:34:323
1351099513,32cyclictest20730-21taskset09:01:173
1351099512,41cyclictest29117-21taskset09:15:203
1351099512,40cyclictest8054-21chrt09:33:433
1351099512,34cyclictest30188-21chrt07:51:113
1351099503,36cyclictest1176-21taskset08:01:233
1351099503,34cyclictest7786-21chrt11:21:313
1351099503,34cyclictest1101-21chrt10:16:273
1351099503,32cyclictest1641-21chrt11:11:263
1351099503,32cyclictest1641-21chrt11:11:263
1351099502,36cyclictest28108-21chrt11:01:253
1351099502,36cyclictest28108-21chrt11:01:253
1351099502,36cyclictest16225-21chrt08:46:313
1351099502,36cyclictest16225-21chrt08:46:313
1351099502,33cyclictest4477-21chrt08:11:123
1351099496,35cyclictest20827-21chrt09:56:003
1351099494,33cyclictest10125-21chrt10:31:303
1351099494,33cyclictest10125-21chrt10:31:303
1351099493,34cyclictest25417-21chrt10:02:083
1351099492,38cyclictest24643-21chrt10:56:103
1351099492,35cyclictest21213-21chrt11:43:193
1351099492,35cyclictest21213-21chrt11:43:193
1351099492,33cyclictest11404-21chrt08:31:333
1351099483,36cyclictest10205-21chrt08:26:433
1351099483,32cyclictest28201-21chrt11:56:083
1351099483,32cyclictest19606-21chrt08:56:403
1351099483,32cyclictest19606-21chrt08:56:403
1351099482,34cyclictest27545-21chrt07:41:353
1351099482,33cyclictest30323-21chrt07:51:233
1351099482,33cyclictest30323-21chrt07:51:233
1351099482,33cyclictest13570-21chrt12:26:063
1351099482,32cyclictest14623-21taskset09:45:263
1351099473,36cyclictest5129-21taskset09:28:573
1351099472,37cyclictest6543-21chrt11:19:363
1351099472,32cyclictest22664-21chrt09:57:463
1351099472,29cyclictest2709-21chrt09:25:333
1351099463,31cyclictest15814-21chrt12:29:063
1351099463,31cyclictest15814-21chrt12:29:063
1351099462,34cyclictest15436-21chrt10:41:023
1351099453,33cyclictest31136-21chrt12:01:063
1351099453,32cyclictest32174-21chrt09:20:303
1351099453,32cyclictest32174-21chrt09:20:303
1351099452,32cyclictest23807-21chrt09:06:243
1351099444,28cyclictest11228-21taskset11:26:423
1351099444,28cyclictest11228-21taskset11:26:423
1351099442,30cyclictest13434-21taskset08:36:433
1351099433,29cyclictest23699-21chrt07:31:103
13510994324,11cyclictest0-21swapper/307:06:453
1351099423,30cyclictest19107-21chrt10:46:293
1351099423,30cyclictest14462-21chrt08:41:293
1351099372,26cyclictest6579-21taskset08:16:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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