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2026-03-20 - 19:37
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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 all highest latencies:
System rackbslot7.osadl.org (updated Fri Mar 20, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314699910420,39cyclictest8587-21runrttasks11:48:430
314769910058,37cyclictest31458-21cyclictest11:26:081
3146999993,80cyclictest21072-21apt-get08:10:440
3146999973,62cyclictest22998-21apt-get10:25:070
31481999575,11cyclictest0-21swapper/209:09:532
31481999575,11cyclictest0-21swapper/209:09:532
31481999571,16cyclictest28555-21ssh09:40:192
31481999471,13cyclictest0-21swapper/212:00:102
31481999470,11cyclictest0-21swapper/207:30:142
31481999470,11cyclictest0-21swapper/207:30:142
3147699933,82cyclictest0-21swapper/107:45:051
31481999272,13cyclictest0-21swapper/208:24:542
31481999272,11cyclictest0-21swapper/207:15:132
31481999173,8cyclictest0-21swapper/208:45:262
31481999173,8cyclictest0-21swapper/208:45:262
31481999173,8cyclictest0-21swapper/207:41:002
31481999173,10cyclictest0-21swapper/207:45:112
31476999128,36cyclictest352-21runrttasks09:33:031
31481999073,8cyclictest0-21swapper/208:56:342
31481999072,8cyclictest0-21swapper/208:15:252
31481999066,15cyclictest19569-21ssh10:19:542
31481999025,36cyclictest0-21swapper/207:25:512
31481999025,32cyclictest0-21swapper/211:18:402
3147699903,74cyclictest0-21swapper/108:25:041
3146999902,46cyclictest24586-21modprobe08:20:170
31476998967,12cyclictest0-21swapper/112:00:241
31476998944,38cyclictest0-21swapper/110:40:261
31476998944,38cyclictest0-21swapper/110:40:261
3147699893,76cyclictest0-21swapper/110:45:061
3147699893,74cyclictest0-21swapper/111:20:031
3146999893,70cyclictest30537-21apt-get12:25:090
31481998871,8cyclictest0-21swapper/208:35:182
31481998871,8cyclictest0-21swapper/208:35:182
3147699883,79cyclictest0-21swapper/110:00:101
3147699883,79cyclictest0-21swapper/110:00:101
31469998823,46cyclictest31458-21cyclictest09:27:520
31469998823,46cyclictest31458-21cyclictest09:27:520
31481998763,15cyclictest31458-21cyclictest08:11:352
31481998749,30cyclictest7550-21sh10:00:072
31481998749,30cyclictest7550-21sh10:00:072
31481998748,32cyclictest15690-21sh09:19:542
3147699874,74cyclictest0-21swapper/111:30:041
3148599865,40cyclictest26260-21chrt11:24:513
31481998643,36cyclictest18642-21sh09:24:512
31481998628,32cyclictest0-21swapper/208:28:452
31476998670,11cyclictest31458-21cyclictest07:20:291
3147699863,71cyclictest0-21swapper/108:40:021
3147699863,71cyclictest0-21swapper/108:40:021
31469998651,19cyclictest31013-21apt-get08:40:060
31469998651,19cyclictest31013-21apt-get08:40:060
31481998541,37cyclictest0-21swapper/210:05:052
3148199853,73cyclictest29652-21apt-get11:30:042
3148199852,74cyclictest0-21swapper/209:00:042
31476998565,9cyclictest0-21swapper/111:14:541
31476998565,12cyclictest0-21swapper/112:34:541
3147699853,69cyclictest0-21swapper/107:10:051
3147699852,73cyclictest0-21swapper/107:30:041
3147699852,73cyclictest0-21swapper/107:30:041
31481998448,30cyclictest18911-21ntp_offset12:05:202
31481998448,30cyclictest18911-21ntp_offset12:05:202
3148199843,71cyclictest0-21swapper/207:20:062
3148199843,46cyclictest18720-21seq08:01:522
3148199842,48cyclictest17179-21seq07:57:422
3148199842,48cyclictest17179-21seq07:57:422
3147699843,71cyclictest0-21swapper/111:55:081
31481998357,13cyclictest181rcu_preempt08:50:092
31481998357,13cyclictest181rcu_preempt08:50:092
31481998346,30cyclictest301-21mailstats10:40:242
31481998346,30cyclictest301-21mailstats10:40:242
3148199833,70cyclictest0-21swapper/208:05:042
3148199833,70cyclictest0-21swapper/208:05:042
31476998365,11cyclictest0-21swapper/110:10:251
31476998365,11cyclictest0-21swapper/110:10:251
31476998348,27cyclictest0-21swapper/111:00:261
3147699834,69cyclictest0-21swapper/110:35:021
3147699834,69cyclictest0-21swapper/110:20:011
31481998265,8cyclictest0-21swapper/211:20:142
31481998243,33cyclictest30204-21latency_hist12:24:542
31481998243,33cyclictest30204-21latency_hist12:24:542
31481998240,35cyclictest0-21swapper/209:35:032
31481998240,35cyclictest0-21swapper/209:35:032
3148199823,73cyclictest0-21swapper/211:30:032
31476998250,23cyclictest13417-21cron10:09:511
3147699824,66cyclictest0-21swapper/112:20:071
3147699824,66cyclictest0-21swapper/112:20:071
3147699823,69cyclictest0-21swapper/111:45:071
3147699822,46cyclictest6067-21/usr/sbin/munin07:25:161
31469998224,24cyclictest30966-21diskmemload11:30:430
3147699813,70cyclictest9335-21ssh11:50:051
31476998121,29cyclictest0-21swapper/110:58:141
3146999813,37cyclictest23496-21timerandwakeup08:15:260
3148199803,65cyclictest18980-21ssh09:25:062
3148199803,65cyclictest18980-21ssh09:25:062
3147699803,69cyclictest0-21swapper/108:35:061
3147699803,69cyclictest0-21swapper/108:35:061
31476998034,38cyclictest0-21swapper/112:10:261
3148199793,71cyclictest0-21swapper/210:45:042
3148199793,47cyclictest0-21swapper/209:31:052
3147699794,70cyclictest0-21swapper/109:35:081
3147699794,70cyclictest0-21swapper/109:35:081
31476997938,29cyclictest14175-21kworker/u17:3-xprtiod11:35:001
3147699793,71cyclictest0-21swapper/108:30:041
3147699793,68cyclictest31480-21latency_hist07:04:561
3147699793,67cyclictest0-21swapper/109:05:061
3147699793,67cyclictest0-21swapper/109:05:061
3147699792,64cyclictest0-21swapper/108:50:061
3147699792,64cyclictest0-21swapper/108:50:061
31469997936,27cyclictest27775-21apt-get08:30:070
31469997926,43cyclictest26637-21apt-config11:24:550
31469997917,40cyclictest0-21swapper/010:10:520
31469997917,40cyclictest0-21swapper/010:10:520
3080727910,32sleep00-21swapper/007:00:380
3148599784,34cyclictest31515-21chrt07:04:563
31481997840,31cyclictest0-21swapper/211:00:162
31481997838,31cyclictest0-21swapper/210:35:022
3148199783,67cyclictest0-21swapper/209:55:032
3148199783,67cyclictest0-21swapper/209:55:032
3148199783,67cyclictest0-21swapper/209:45:012
3148199783,64cyclictest0-21swapper/211:50:062
3148199782,68cyclictest0-21swapper/210:55:052
3147699784,67cyclictest0-21swapper/110:50:061
3147699783,69cyclictest0-21swapper/108:45:071
3147699783,69cyclictest0-21swapper/108:45:071
31476997831,39cyclictest0-21swapper/109:50:081
31469997849,12cyclictest181rcu_preempt11:35:070
31469997847,21cyclictest20612-21ssh11:15:060
31469997823,20cyclictest19088-21seq10:18:510
3148599774,34cyclictest3558-21chrt11:40:113
3148599773,35cyclictest10913-21chrt10:05:283
31481997742,7cyclictest181rcu_preempt09:54:512
31476997755,11cyclictest0-21swapper/112:05:041
31476997755,11cyclictest0-21swapper/112:05:041
31476997733,36cyclictest0-21swapper/109:59:551
31476997733,36cyclictest0-21swapper/109:59:551
31469997757,10cyclictest26172-21apt-get08:25:040
31469997750,17cyclictest7691-21apt-get07:30:070
31469997750,17cyclictest7691-21apt-get07:30:070
31469997750,12cyclictest15-21ksoftirqd/009:55:280
31469997750,12cyclictest15-21ksoftirqd/009:55:280
31469997747,22cyclictest19769-21apt-get10:20:020
31469997743,22cyclictest6941-21apt-get09:05:060
31469997743,22cyclictest6941-21apt-get09:05:060
3146999773,54cyclictest10752-21apt-get10:05:110
31469997735,32cyclictest27951-21apt-get09:40:020
31469997720,20cyclictest6584-21seq09:04:450
3148599763,33cyclictest6956-21taskset09:05:053
3148599763,33cyclictest6956-21taskset09:05:053
3148199763,68cyclictest0-21swapper/210:20:022
3148199763,59cyclictest14557-21apt-get11:05:022
31476997643,26cyclictest0-21swapper/111:40:261
3147699763,67cyclictest0-21swapper/107:05:031
3147699763,60cyclictest29996-21apt-get12:25:011
31476997631,37cyclictest0-21swapper/110:26:311
31476997618,33cyclictest352-21runrttasks07:58:351
31476997618,33cyclictest352-21runrttasks07:58:351
31469997645,21cyclictest30945-21latency_hist08:39:540
31469997645,21cyclictest30945-21latency_hist08:39:540
31469997642,24cyclictest12368-21ssh11:55:070
31469997620,15cyclictest23534-21seq09:31:500
3148599753,31cyclictest9541-21chrt11:50:123
31481997553,12cyclictest0-21swapper/211:10:252
31481997552,17cyclictest1488-21kernelversion12:30:162
3148199753,62cyclictest3344-21ssh11:40:032
31481997534,34cyclictest0-21swapper/212:15:222
3148199752,62cyclictest0-21swapper/207:35:032
31476997560,8cyclictest0-21swapper/109:15:191
31476997555,11cyclictest0-21swapper/108:11:061
3147699754,62cyclictest0-21swapper/107:15:031
3147699754,61cyclictest0-21swapper/109:10:011
3147699753,68cyclictest0-21swapper/111:05:071
31476997530,35cyclictest0-21swapper/112:15:181
31469997556,13cyclictest15959-21sshd09:20:020
31469997549,17cyclictest7539-21apt-get10:00:090
31469997549,17cyclictest7539-21apt-get10:00:090
31469997539,27cyclictest2382-21ssh10:44:550
31469997539,27cyclictest2382-21ssh10:44:550
31469997528,32cyclictest10682-21sendmail_mailtr09:10:240
3146999752,23cyclictest19720-21ssh11:13:250
31469997518,20cyclictest6618-21diskmemload12:24:320
31469997518,20cyclictest6618-21diskmemload12:24:320
3148599744,32cyclictest21218-21chrt11:15:233
3148599743,31cyclictest30620-21taskset11:30:273
31481997457,8cyclictest0-21swapper/208:30:272
31481997435,33cyclictest0-21swapper/211:47:072
31481997434,33cyclictest0-21swapper/212:10:262
3147699744,56cyclictest5271-21apt-get09:00:041
3147699743,62cyclictest0-21swapper/108:00:041
31476997432,35cyclictest0-21swapper/110:30:251
31469997414,37cyclictest0-21swapper/008:48:540
31469997414,37cyclictest0-21swapper/008:48:540
3147699734,64cyclictest0-21swapper/107:50:031
3147699733,64cyclictest0-21swapper/109:45:011
3147699733,64cyclictest0-21swapper/108:20:511
3147699732,57cyclictest19231-21apt-get08:05:021
3147699732,57cyclictest19231-21apt-get08:05:021
31469997326,21cyclictest26718-21/usr/sbin/munin10:30:240
31469997322,41cyclictest28993-21/usr/sbin/munin10:35:240
31469997321,41cyclictest13726-21ssh09:15:250
31469997321,21cyclictest15550-21seq07:52:520
3148599723,33cyclictest18517-21chrt12:05:123
3148599723,33cyclictest18517-21chrt12:05:123
3148599723,31cyclictest10377-21chrt09:10:163
3148599723,24cyclictest3333-21chrt09:52:313
31481997250,16cyclictest30934-21fschecks_time12:25:322
3148199723,63cyclictest0-21swapper/208:40:022
3148199723,63cyclictest0-21swapper/208:40:022
31481997236,32cyclictest31458-21cyclictest07:10:282
3148199723,60cyclictest0-21swapper/210:50:032
3148199723,43cyclictest0-21swapper/207:05:012
3148199722,63cyclictest23315-21apt-get10:25:532
31481997226,39cyclictest0-21swapper/210:10:212
31481997226,39cyclictest0-21swapper/210:10:212
31476997254,9cyclictest0-21swapper/110:15:081
31476997252,13cyclictest1-21systemd08:54:591
3147699723,64cyclictest0-21swapper/109:25:041
3147699723,64cyclictest0-21swapper/109:25:041
3147699723,63cyclictest0-21swapper/108:15:061
31469997219,22cyclictest5710-21seq07:23:400
3148599713,31cyclictest16405-21taskset09:20:173
31485997129,35cyclictest0-21swapper/311:25:153
3148199713,62cyclictest0-21swapper/211:35:042
31481997129,37cyclictest0-21swapper/211:57:172
3147699714,62cyclictest0-21swapper/109:40:031
3147699713,62cyclictest0-21swapper/111:15:271
3147699713,59cyclictest16275-21fschecks_time09:20:141
3147699712,56cyclictest9322-21apt-get07:35:031
31469997154,9cyclictest2553-21apt-get10:45:060
31469997148,16cyclictest19165-21latency_hist08:04:550
31469997145,19cyclictest26795-21apt-get11:25:550
31469997136,21cyclictest5543-21apt-get10:50:060
31469997131,31cyclictest0-21swapper/011:05:020
31469997127,38cyclictest10662-21apt-get07:40:050
3146999712,24cyclictest2507-21switchtime08:50:260
3146999712,24cyclictest2507-21switchtime08:50:260
31469997122,18cyclictest3670-21seq08:55:100
3148599704,29cyclictest22469-21taskset09:30:193
3148599704,29cyclictest2170-21chrt12:30:283
3148599703,26cyclictest2378-21chrt11:38:053
3148199702,63cyclictest0-21swapper/209:10:062
3148199702,39cyclictest352-21runrttasks10:32:002
3147699702,59cyclictest11164-21apt-get07:40:501
31469997033,28cyclictest0-21swapper/007:39:550
3146999702,38cyclictest15341-21cpu12:00:040
31469997022,38cyclictest26215-21ssh09:35:510
31469997022,38cyclictest26215-21ssh09:35:510
3148599693,28cyclictest13893-21chrt11:56:453
3148599693,23cyclictest3657-21chrt08:55:043
3148599692,26cyclictest30463-21chrt09:44:253
31481996930,32cyclictest0-21swapper/207:50:272
31469996951,10cyclictest12772-21apt-get07:45:050
31469996947,13cyclictest5000-21ssh11:42:030
31469996945,16cyclictest1072-21apt-get12:30:050
31469996936,25cyclictest9310-21apt-get11:50:070
31469996936,24cyclictest1232-21apt-get07:10:100
3146999693,33cyclictest6618-21diskmemload10:55:000
31469996923,21cyclictest26164-21ssh12:17:320
31469996917,17cyclictest7202-21seq07:27:090
3148599684,28cyclictest27859-21chrt10:32:363
3148599684,27cyclictest10798-21chrt10:58:373
3148599683,27cyclictest22090-21chrt10:23:523
3148599682,26cyclictest15997-21taskset07:55:023
3148599682,26cyclictest15997-21taskset07:55:023
31485996821,13cyclictest20582chrt08:50:143
31485996821,13cyclictest20582chrt08:50:143
31469996844,18cyclictest32118-21netstat07:05:180
3131126813,29sleep20-21swapper/207:04:522
3148599673,36cyclictest24623-21taskset08:20:463
3148599673,25cyclictest31305-21taskset12:25:423
31469996737,23cyclictest2871-21apt-get07:15:020
31469996736,21cyclictest21295-21apt-get12:10:010
31469996733,24cyclictest19231-21apt-get08:05:070
31469996733,24cyclictest19231-21apt-get08:05:070
3146999673,22cyclictest6618-21diskmemload12:05:240
3146999673,22cyclictest6618-21diskmemload12:05:240
3148599665,47cyclictest12603-21taskset11:00:283
3148599664,26cyclictest25846-21chrt12:16:383
3148599663,24cyclictest6950-21taskset11:45:223
31485996618,10cyclictest137522chrt10:10:023
31485996618,10cyclictest137522chrt10:10:023
3148599653,28cyclictest30629-21taskset10:36:533
3148599652,26cyclictest17293-21chrt10:15:173
31485996510,15cyclictest0-21swapper/312:04:553
31469996533,20cyclictest16011-21apt-get07:55:070
31469996533,20cyclictest16011-21apt-get07:55:070
3148599644,28cyclictest11179-21taskset07:40:083
31485996411,15cyclictest0-21swapper/308:05:243
31485996411,15cyclictest0-21swapper/308:05:243
31485996410,13cyclictest0-21swapper/309:04:543
31469996448,9cyclictest30941-21apt-get09:45:010
31469996429,24cyclictest11571-21ssh11:00:020
7612630,7sleep30-21swapper/309:48:433
3148599633,27cyclictest10225-21taskset10:04:513
3148599633,27cyclictest10225-21taskset10:04:513
31485996311,16cyclictest0-21swapper/311:10:093
31485996310,16cyclictest0-21swapper/307:25:233
3148599623,24cyclictest29534-21chrt08:35:083
3148599623,24cyclictest29534-21chrt08:35:083
3148599622,24cyclictest28937-21chrt08:32:453
31469996219,19cyclictest1838-21kworker/u17:2+rpciod09:54:530
3148599615,39cyclictest31823-21chrt07:05:133
31485996110,15cyclictest0-21swapper/308:40:243
31485996110,15cyclictest0-21swapper/308:40:243
3148599603,44cyclictest11081-21chrt07:39:553
3148599603,40cyclictest26040-21taskset09:35:293
3148599603,40cyclictest26040-21taskset09:35:293
31485996010,16cyclictest0-21swapper/308:19:563
283132600,10sleep3451rcuc/312:20:273
283132600,10sleep3451rcuc/312:20:273
3148599595,40cyclictest23320-21taskset10:25:553
3148599594,41cyclictest855-21taskset10:40:583
3148599594,41cyclictest855-21taskset10:40:583
31485995914,13cyclictest0-21swapper/310:54:513
3148599589,16cyclictest0-21swapper/307:50:283
31485995711,13cyclictest0-21swapper/307:19:523
3148599553,37cyclictest21336-21chrt12:10:063
3148599553,35cyclictest2962-21chrt10:45:163
3148599553,35cyclictest22609-21taskset08:14:553
31485995513,13cyclictest0-21swapper/307:30:143
31485995513,13cyclictest0-21swapper/307:30:143
3148599544,36cyclictest5849-21chrt07:24:533
3148599542,37cyclictest1132-21chrt08:45:293
3148599542,37cyclictest1132-21chrt08:45:293
3148599533,35cyclictest14138-21chrt09:15:393
3148599523,35cyclictest21700-21chrt09:29:543
3148599523,35cyclictest21700-21chrt09:29:543
3148599522,37cyclictest6710-21taskset09:58:313
3148599522,37cyclictest6710-21taskset09:58:313
3148599514,34cyclictest26513-21taskset08:25:163
3148599514,33cyclictest17846-21chrt08:00:123
3148599503,36cyclictest14744-21chrt11:05:103
3148599503,34cyclictest14130-21taskset07:49:523
3148599423,27cyclictest1292-21taskset07:10:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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