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2026-05-23 - 18:48
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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 rack0slot2.osadl.org (updated Sat May 23, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
408890426050,7sleep50-21swapper/507:06:225
408928299470,45cyclictest6063-21gdbus09:57:087
408928299470,45cyclictest6063-21gdbus09:57:087
408881924534,8sleep40-21swapper/407:05:094
4089282994337,5cyclictest130023-21latency_hist09:07:267
4089279994240,2cyclictest4150487-21kworker/u16:2+flush-8:007:42:526
4089282994140,0cyclictest0-21swapper/712:02:287
40879872402,31sleep70-21swapper/707:02:557
4089282993735,1cyclictest505134-21ssh11:39:357
4089282993735,1cyclictest275043-21ssh10:05:567
4089282993735,1cyclictest130025-21diskmemload10:30:207
4089282993532,2cyclictest124-21kswapd012:15:487
4089282993433,0cyclictest0-21swapper/710:49:567
4089282993432,1cyclictest130025-21diskmemload11:22:527
4089282993431,2cyclictest81052-21ntpq08:37:507
4089282993332,0cyclictest0-21swapper/712:31:367
4089282993332,0cyclictest0-21swapper/711:17:247
4089282993332,0cyclictest0-21swapper/711:17:247
4089282993331,1cyclictest130025-21diskmemload09:22:047
4089282993130,0cyclictest0-21swapper/711:53:357
4089282993130,0cyclictest0-21swapper/711:53:357
4089282993130,0cyclictest0-21swapper/711:20:087
4089282993130,0cyclictest0-21swapper/708:49:377
4089282993129,1cyclictest130025-21diskmemload10:08:487
4089282993129,1cyclictest130025-21diskmemload09:37:207
4089282993129,1cyclictest130025-21diskmemload09:10:167
4089282993129,1cyclictest0-21swapper/709:48:367
4089282993127,2cyclictest298130-21ssh10:13:327
4089279993129,2cyclictest567359-21kworker/u16:4+events_unbound12:29:366
4089279993129,2cyclictest224815-21kworker/u16:4+flush-8:010:12:416
4089282993029,0cyclictest0-21swapper/709:41:277
4089279993028,2cyclictest119466-21kworker/u16:2+events_unbound10:42:566
4089282992928,0cyclictest0-21swapper/711:45:117
4089282992927,1cyclictest130025-21diskmemload10:00:287
4089282992927,1cyclictest0-21swapper/710:58:487
4089279992927,2cyclictest349191-21kworker/u16:0+events_unbound11:42:156
4089282992827,0cyclictest0-21swapper/712:25:277
4089282992827,0cyclictest0-21swapper/710:41:077
4089282992826,1cyclictest0-21swapper/711:28:357
4089279992825,3cyclictest119466-21kworker/u16:2+flush-8:009:07:526
4089279992825,2cyclictest119466-21kworker/u16:2+events_unbound11:17:266
4089279992822,6cyclictest119466-21kworker/u16:2+flush-8:010:05:166
4089282992726,0cyclictest0-21swapper/709:31:527
4089282992725,1cyclictest553667-21ssh11:59:487
4089282992724,2cyclictest153329-21sh09:15:357
4089282992724,2cyclictest153329-21sh09:15:357
4089279992725,2cyclictest81675-21kworker/u16:3+events_unbound08:56:336
4089279992725,2cyclictest53123-21kworker/u16:0+events_unbound08:44:326
4089279992725,2cyclictest4150487-21kworker/u16:2+events_unbound08:21:236
4089279992725,2cyclictest4097802-21kworker/u16:4+events_unbound08:11:406
4089279992725,2cyclictest394215-21kworker/u16:1+events_unbound11:01:286
4089279992725,2cyclictest24319-21kworker/u16:1+events_unbound08:37:246
4089279992725,2cyclictest24319-21kworker/u16:1+events_unbound08:37:246
4089279992725,2cyclictest24319-21kworker/u16:1+events_unbound08:17:076
408885022717,7sleep60-21swapper/607:05:356
4089282992625,0cyclictest0-21swapper/712:17:317
4089282992625,0cyclictest0-21swapper/710:34:327
4089282992625,0cyclictest0-21swapper/710:34:327
4089282992625,0cyclictest0-21swapper/709:47:087
4089282992625,0cyclictest0-21swapper/707:11:377
4089282992624,1cyclictest130025-21diskmemload09:24:437
4089282992624,1cyclictest1234-21snmpd12:36:077
4089282992624,1cyclictest1234-21snmpd12:36:077
4089279992624,2cyclictest91384-21kworker/u16:1+events_unbound08:51:326
4089279992624,2cyclictest4089012-21kworker/u16:3+flush-8:007:07:416
4089279992624,2cyclictest224815-21kworker/u16:4+flush-8:010:28:596
4089279992624,2cyclictest224815-21kworker/u16:4+events_unbound10:49:416
4089279992624,2cyclictest212610-21kworker/u16:0+flush-8:010:19:186
4089282992524,0cyclictest0-21swapper/708:16:377
4089282992523,1cyclictest371642-21ssh10:44:497
4089279992523,2cyclictest516528-21kworker/u16:2+events_unbound12:21:416
4089279992523,2cyclictest4111803-21kworker/u16:1+events_unbound07:34:216
4089279992523,2cyclictest349191-21kworker/u16:0+events_unbound12:27:186
4089279992523,2cyclictest24319-21kworker/u16:1+events_unbound08:31:016
4089279992523,2cyclictest224815-21kworker/u16:4+events_unbound10:38:366
4089282992423,0cyclictest0-21swapper/708:57:227
4089282992423,0cyclictest0-21swapper/708:26:377
4089279992422,2cyclictest555099-21kworker/u16:3+events_unbound12:05:466
4089279992422,2cyclictest4097802-21kworker/u16:4+flush-8:008:06:246
4089279992422,2cyclictest212610-21kworker/u16:0+events_unbound10:27:206
4089279992422,2cyclictest119466-21kworker/u16:2+events_unbound09:18:076
4089279992422,2cyclictest119466-21kworker/u16:2+events_unbound09:04:326
4089282992321,1cyclictest311668-21ssh10:21:077
4089279992321,2cyclictest567359-21kworker/u16:4+events_unbound12:33:096
4089279992321,2cyclictest567359-21kworker/u16:4+events_unbound12:33:096
4089279992321,2cyclictest4097802-21kworker/u16:4+events_unbound07:16:406
4089279992321,2cyclictest24319-21kworker/u16:1+events_unbound08:23:456
4089279992321,2cyclictest119466-21kworker/u16:2+flush-8:011:09:056
4089279992321,2cyclictest119466-21kworker/u16:2+events_unbound09:49:456
4089279992317,6cyclictest409604-21kworker/u16:3+events_unbound11:33:156
4089282992221,0cyclictest0-21swapper/711:34:267
4089282992221,0cyclictest0-21swapper/711:08:527
4089282992221,0cyclictest0-21swapper/708:36:367
4089282992221,0cyclictest0-21swapper/708:36:367
4089282992221,0cyclictest0-21swapper/707:53:367
4089282992220,1cyclictest14793-21perf08:07:267
4089282992216,5cyclictest120388-21latency_hist09:02:277
4089279992220,2cyclictest53123-21kworker/u16:0+events_unbound08:59:046
4089279992220,2cyclictest516528-21kworker/u16:2+events_unbound12:16:056
4089279992220,2cyclictest4150487-21kworker/u16:2+events_unbound08:38:376
4089279992220,2cyclictest4150487-21kworker/u16:2+events_unbound07:47:546
4089279992220,2cyclictest4111803-21kworker/u16:1+events_unbound07:22:356
4089279992220,2cyclictest224815-21kworker/u16:4+events_unbound09:52:416
4089279992220,2cyclictest224815-21kworker/u16:4+events_unbound09:52:416
4089282992120,0cyclictest0-21swapper/711:06:527
408928299210,19cyclictest827-21dbus-daemon08:32:267
4089279992119,2cyclictest4097802-21kworker/u16:4+events_unbound07:27:426
4089279992119,2cyclictest193638-21kworker/u16:1+events_unbound09:41:286
4089279992119,2cyclictest119466-21kworker/u16:2+flush-8:009:15:366
4089279992119,2cyclictest119466-21kworker/u16:2+flush-8:009:15:366
4089270992118,2cyclictest119466-21kworker/u16:2+flush-8:010:37:484
4089282992019,0cyclictest0-21swapper/711:49:197
4089282992019,0cyclictest0-21swapper/707:29:377
4089279992018,2cyclictest4089012-21kworker/u16:3+flush-8:007:17:436
4089279992018,2cyclictest119466-21kworker/u16:2+flush-8:011:29:346
4089279992018,2cyclictest119466-21kworker/u16:2+events_unbound11:04:046
4089275992018,2cyclictest4169663-21kworker/u16:1+flush-8:007:47:425
4089282991918,0cyclictest0-21swapper/710:23:307
408928299190,17cyclictest0-21swapper/707:57:527
4089279991917,2cyclictest433704-21kworker/u16:1+events_unbound11:56:466
4089279991917,2cyclictest433704-21kworker/u16:1+events_unbound11:56:466
4089279991917,2cyclictest4140861-21kworker/u16:0+events_unbound07:41:406
4089279991917,2cyclictest119466-21kworker/u16:2+events_unbound10:33:496
4089279991917,2cyclictest119466-21kworker/u16:2+events_unbound10:33:496
4089282991815,2cyclictest1234-21snmpd07:35:417
4089279991816,2cyclictest349191-21kworker/u16:0+events_unbound11:51:406
4089279991816,2cyclictest193638-21kworker/u16:1+events_unbound09:34:486
4089279991815,2cyclictest166636-21kworker/u16:3+flush-8:009:27:316
4089275991816,2cyclictest119466-21kworker/u16:2+events_unbound09:22:545
408927099180,17cyclictest0-21swapper/408:47:504
4089282991715,1cyclictest577612-21ssh12:09:117
4089282991714,2cyclictest1234-21snmpd07:19:027
4089282991713,3cyclictest1234-21snmpd07:24:237
4089279991715,2cyclictest433704-21kworker/u16:1+events_unbound11:57:576
4089279991715,2cyclictest4097802-21kworker/u16:4+events_unbound08:01:426
4089279991715,2cyclictest4097802-21kworker/u16:4+events_unbound07:53:326
4089279991715,2cyclictest119466-21kworker/u16:2+events_unbound09:58:326
408927099170,1cyclictest0-21swapper/409:09:164
408927099170,13cyclictest0-21swapper/410:03:404
4089282991615,0cyclictest0-21swapper/710:54:277
4089279991614,2cyclictest516528-21kworker/u16:2+events_unbound12:07:376
4089279991614,2cyclictest212610-21kworker/u16:0+flush-8:010:10:136
4089279991614,2cyclictest212610-21kworker/u16:0+flush-8:009:42:396
4089275991614,2cyclictest349191-21kworker/u16:0+flush-8:011:32:415
4089275991612,3cyclictest224815-21kworker/u16:4+flush-8:009:58:355
408927099160,12cyclictest0-21swapper/409:58:484
4089282991514,0cyclictest0-21swapper/707:45:137
4089282991511,3cyclictest1234-21snmpd07:38:267
4089279991513,2cyclictest119466-21kworker/u16:2+flush-8:010:53:036
4089270991513,2cyclictest4150487-21kworker/u16:2+flush-8:008:12:474
4089270991513,2cyclictest119466-21kworker/u16:2+flush-8:010:23:154
408927099150,12cyclictest0-21swapper/411:59:324
4089282991412,1cyclictest0-21swapper/708:07:537
408927999140,14cyclictest0-21swapper/611:45:596
4089275991413,1cyclictest0-21swapper/511:56:355
4089275991413,1cyclictest0-21swapper/511:56:355
4089275991413,1cyclictest0-21swapper/510:34:555
4089275991413,1cyclictest0-21swapper/510:34:555
4089275991412,2cyclictest4150487-21kworker/u16:2+flush-8:008:22:495
408927599140,1cyclictest0-21swapper/512:08:065
408927599140,1cyclictest0-21swapper/511:05:025
408927599140,1cyclictest0-21swapper/510:45:575
408927599140,14cyclictest0-21swapper/512:30:105
408927599140,14cyclictest0-21swapper/512:19:275
408927599140,14cyclictest0-21swapper/510:55:155
408927599140,14cyclictest0-21swapper/510:08:355
408927599140,14cyclictest0-21swapper/509:29:205
4089270991413,1cyclictest0-21swapper/410:16:454
4089270991410,1cyclictest0-21swapper/411:02:474
408927099140,14cyclictest0-21swapper/412:34:424
408927099140,14cyclictest0-21swapper/412:34:424
408928299136,6cyclictest6032-21gmain07:15:117
4089279991313,0cyclictest0-21swapper/611:24:236
4089279991311,2cyclictest119466-21kworker/u16:2+events_unbound09:24:486
408927999130,1cyclictest0-21swapper/611:14:086
408927999130,1cyclictest0-21swapper/611:14:086
4089275991312,1cyclictest0-21swapper/509:49:025
4089275991312,1cyclictest0-21swapper/509:38:575
4089275991312,1cyclictest0-21swapper/508:07:115
4089270991312,1cyclictest0-21swapper/412:22:334
4089270991312,1cyclictest0-21swapper/411:46:464
4089270991312,1cyclictest0-21swapper/410:29:504
4089270991312,1cyclictest0-21swapper/409:41:454
408927099130,13cyclictest0-21swapper/411:23:364
408927099130,13cyclictest0-21swapper/409:20:284
408927599129,3cyclictest4150487-21kworker/u16:2+flush-8:008:12:435
4089275991211,1cyclictest0-21swapper/511:45:235
4089275991211,1cyclictest0-21swapper/511:24:545
4089275991211,1cyclictest0-21swapper/511:14:585
4089275991211,1cyclictest0-21swapper/511:14:585
4089275991211,1cyclictest0-21swapper/510:22:375
4089275991211,1cyclictest0-21swapper/509:18:555
4089275991211,1cyclictest0-21swapper/509:07:535
4089275991211,1cyclictest0-21swapper/508:51:015
4089275991211,1cyclictest0-21swapper/507:22:535
4089275991210,2cyclictest224815-21kworker/u16:4+events_unbound10:02:395
4089270991211,1cyclictest0-21swapper/412:11:224
4089270991211,1cyclictest0-21swapper/411:13:214
4089270991211,1cyclictest0-21swapper/411:13:214
4089270991211,1cyclictest0-21swapper/408:30:104
4089270991210,2cyclictest4069509-21kworker/u16:0+events_unbound07:12:414
408928299118,2cyclictest1234-21snmpd07:49:007
408928299117,3cyclictest864-21NetworkManager08:17:447
408928299115,5cyclictest6895-21gmain08:43:397
4089275991110,1cyclictest0-21swapper/508:33:505
4089275991110,1cyclictest0-21swapper/508:33:505
408927599110,1cyclictest0-21swapper/508:20:175
408927599110,11cyclictest0-21swapper/507:47:105
408927099118,2cyclictest0-21swapper/412:02:414
4089270991110,1cyclictest0-21swapper/411:34:194
4089270991110,1cyclictest0-21swapper/410:52:234
4089270991110,1cyclictest0-21swapper/409:52:374
4089270991110,1cyclictest0-21swapper/409:52:374
4089270991110,1cyclictest0-21swapper/409:30:434
4089270991110,1cyclictest0-21swapper/407:35:564
408927099110,4cyclictest0-21swapper/407:57:424
408927599106,3cyclictest102392-21cat08:52:425
408927599105,4cyclictest4180503-21cat07:52:425
408927099106,3cyclictest4113301-21cat07:17:424
408927099105,4cyclictest300766-21cpu10:17:404
408927099100,5cyclictest0-21swapper/409:32:434
40892759997,2cyclictest4111803-21kworker/u16:1+events_unbound07:27:525
40892759997,1cyclictest0-21swapper/507:17:455
40892759995,3cyclictest73605-21cat08:37:425
40892759995,3cyclictest629260-21cat12:32:415
40892759995,3cyclictest629260-21cat12:32:415
40892759995,3cyclictest580697-21cat12:12:415
40892759995,3cyclictest495870-21cat11:37:415
40892759994,4cyclictest552293-21wc11:57:535
40892759994,4cyclictest450651-21kthreadcore11:17:445
40892759990,9cyclictest0-21swapper/511:48:165
40892709996,2cyclictest0-21swapper/409:42:464
40892709994,4cyclictest479260-21nfs_client11:27:494
40892709994,4cyclictest386544-21smartctl10:52:414
40892709994,4cyclictest15176-21/usr/sbin/munin08:07:424
40892759986,2cyclictest5829-21JS15:59:265
40892759986,2cyclictest5829-21JS15:59:265
40892759985,2cyclictest191320-21grep09:32:395
40892759985,2cyclictest0-21swapper/510:37:375
40892759985,2cyclictest0-21swapper/508:07:455
40892759983,4cyclictest89630-21grep08:42:475
40892759983,4cyclictest558880-21cut12:02:445
40892759983,4cyclictest4190784-21cut07:57:445
40892759983,4cyclictest4151722-21cat07:37:425
40892759983,4cyclictest4144602-21cut07:32:595
40892759983,4cyclictest4102709-21grep07:12:315
40892759983,4cyclictest4096221-21cut07:07:475
40892759983,4cyclictest405692-21grep10:57:465
40892759983,4cyclictest325599-21expr10:27:415
40892759983,4cyclictest290301-21grep10:12:445
40892759983,4cyclictest244722-21cut09:52:465
40892759983,4cyclictest244722-21cut09:52:465
40892759983,4cyclictest120907-21cpuspeed_turbos09:02:385
40892759980,1cyclictest0-21swapper/512:22:425
40892709987,1cyclictest0-21swapper/412:22:244
40892709986,1cyclictest0-21swapper/412:27:444
40892709986,1cyclictest0-21swapper/409:47:554
40892709985,2cyclictest76373-21cut08:37:454
40892709985,2cyclictest1011-21lldpd10:57:314
40892709985,2cyclictest0-21swapper/410:07:444
40892709984,3cyclictest83161-21if_err_p4p108:42:414
40892709984,3cyclictest495209-21cpuspeed_turbos11:37:384
40892709984,3cyclictest4151902-21sed07:37:434
40892709984,3cyclictest369933-21nfs4_client10:42:504
40892709983,4cyclictest579967-21cpuspeed_turbos12:12:384
40892709983,4cyclictest48843-21kthreadcore08:22:464
40892709983,4cyclictest4132596-21irqcore07:27:424
40892709983,4cyclictest4128033-21cut07:22:474
40892709983,4cyclictest338442-21cut10:32:464
40892709983,4cyclictest338442-21cut10:32:464
40892709983,4cyclictest174300-21cut09:22:484
40892709983,4cyclictest144915-21cut09:12:434
40892709983,4cyclictest144915-21cut09:12:434
40892709981,6cyclictest110067-21smartctl08:52:554
40892709980,2cyclictest0-21swapper/411:47:434
40892759974,2cyclictest422520-21cstates11:07:385
40892759973,3cyclictest471706-21sed11:27:425
40892759973,3cyclictest301208-21expr10:17:415
40892759972,4cyclictest53714-21cpuspeed08:27:385
40892759972,4cyclictest374852-21kthreadcore10:47:435
40892759972,4cyclictest215689-21cat09:42:385
40892709975,1cyclictest0-21swapper/411:17:424
40892709975,1cyclictest0-21swapper/409:02:434
40892709975,1cyclictest0-21swapper/408:32:454
40892709975,1cyclictest0-21swapper/408:32:454
40892709975,1cyclictest0-21swapper/408:02:404
40892709975,1cyclictest0-21swapper/407:07:414
40892709973,3cyclictest532110-21smartctl11:52:414
40892709973,3cyclictest532110-21smartctl11:52:414
40892709973,3cyclictest422225-21cpu11:07:384
40892709973,3cyclictest4180318-21grep07:52:414
40892709972,4cyclictest4170592-21cat07:47:394
40892709972,4cyclictest4160977-21expr07:42:394
40892709972,4cyclictest35134-21tune2fs08:17:394
40892759963,2cyclictest111379-21cpuspeed_turbos08:57:385
40892709964,1cyclictest0-21swapper/408:57:384
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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