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2026-01-08 - 18:25
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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 Thu Jan 08, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299016026252,7sleep50-21swapper/507:07:495
299012526038,7sleep60-21swapper/607:07:186
298991725520,30sleep70-21swapper/707:04:227
299017725242,7sleep40-21swapper/407:08:044
2990496994640,5cyclictest3227773-21latency_hist09:13:137
2990486994542,2cyclictest3013947-21kworker/u16:0+flush-8:007:53:124
2990492994341,2cyclictest3326659-21kworker/u16:3+flush-8:010:23:126
2990486994340,2cyclictest3492173-21kworker/u16:0+flush-8:012:03:124
2990486994139,2cyclictest3492173-21kworker/u16:0+flush-8:011:38:124
2990492994037,2cyclictest3295337-21kworker/u16:1+flush-8:010:28:126
2990488994038,2cyclictest3198859-21kworker/u16:3+events_unbound09:13:275
2990486993834,3cyclictest2970988-21kworker/u16:1+flush-8:007:13:134
2990486993834,3cyclictest2970988-21kworker/u16:1+flush-8:007:13:134
2990488993735,2cyclictest3151575-21kworker/u16:2+events_unbound09:03:355
2990492993533,2cyclictest3295337-21kworker/u16:1+events_unbound11:08:126
2990488993534,1cyclictest3453124-21kworker/u16:2+events_unbound11:27:415
2990488993533,2cyclictest3256621-21kworker/u16:0+events_unbound10:13:255
2990488993432,2cyclictest3453124-21kworker/u16:2+flush-8:011:33:265
2990486993432,2cyclictest3295337-21kworker/u16:1+flush-8:011:11:584
2990486993432,2cyclictest3295337-21kworker/u16:1+flush-8:011:11:584
2990496993128,2cyclictest3052287-21latency_hist07:38:137
2990496993026,3cyclictest3121002-21sed08:18:137
2990492993028,2cyclictest3520155-21kworker/u16:3+events_unbound12:03:076
2990496992924,4cyclictest650-21systemd-journal08:53:127
2990496992924,4cyclictest650-21systemd-journal08:53:127
2990492992927,2cyclictest3198859-21kworker/u16:3+flush-8:009:18:386
2990488992927,2cyclictest3568935-21kworker/u16:4+flush-8:012:18:245
2990488992927,2cyclictest3413031-21kworker/u16:4+events_unbound11:18:265
2990496992822,5cyclictest3295666-21latency_hist09:48:127
2990496992725,1cyclictest0-21swapper/709:38:397
2990496992625,0cyclictest0-21swapper/707:13:287
2990496992625,0cyclictest0-21swapper/707:13:287
2990488992624,2cyclictest2942559-21kworker/u16:4+events_unbound08:18:275
2990488992621,4cyclictest3198419-21packagekitd08:58:085
2990486992624,2cyclictest2970988-21kworker/u16:1+events_unbound07:33:084
2990496992520,4cyclictest3169331-21latency_hist08:43:127
2990492992523,2cyclictest3101722-21kworker/u16:1+flush-8:008:08:276
2990492992422,2cyclictest3013947-21kworker/u16:0+flush-8:007:48:356
2990492992420,3cyclictest3151575-21kworker/u16:2+flush-8:008:58:306
2990488992422,2cyclictest3492173-21kworker/u16:0+flush-8:012:03:385
2990486992422,2cyclictest3492173-21kworker/u16:0+flush-8:011:43:304
299049699230,21cyclictest3442459-21dnf11:11:307
299049699230,21cyclictest3442459-21dnf11:11:307
2990492992321,2cyclictest3492173-21kworker/u16:0+events_unbound11:43:276
2990492992321,2cyclictest3295337-21kworker/u16:1+events_unbound11:11:266
2990492992321,2cyclictest3295337-21kworker/u16:1+events_unbound11:11:266
2990492992321,2cyclictest3102648-21kworker/u16:3+flush-8:008:23:136
2990488992321,2cyclictest3453124-21kworker/u16:2+events_unbound11:43:355
2990488992321,2cyclictest3256621-21kworker/u16:0+flush-8:011:13:225
2990488992321,2cyclictest3169513-21kworker/u16:4+flush-8:008:49:105
2990488992321,2cyclictest3169513-21kworker/u16:4+flush-8:008:49:105
2990486992321,2cyclictest3151575-21kworker/u16:2+flush-8:008:58:314
2990486992320,2cyclictest3364269-21kworker/u16:2+events_unbound10:33:394
2990492992221,1cyclictest3217186-21kworker/u16:6+events_unbound09:41:246
299049299220,15cyclictest0-21swapper/609:08:276
2990488992220,2cyclictest3256621-21kworker/u16:0+flush-8:009:58:075
2990488992220,2cyclictest3198859-21kworker/u16:3+flush-8:009:03:085
2990488992220,2cyclictest2970988-21kworker/u16:1+events_unbound07:38:275
2990488992220,2cyclictest2942559-21kworker/u16:4+events_unbound07:58:355
2990486992220,2cyclictest3364270-21kworker/u16:4+events_unbound10:28:324
2990486992220,2cyclictest3256621-21kworker/u16:0+events_unbound09:58:224
2990486992220,2cyclictest2970988-21kworker/u16:1+flush-8:007:13:124
2990486992219,3cyclictest3453124-21kworker/u16:2+flush-8:011:27:434
2990492992119,2cyclictest3295337-21kworker/u16:1+events_unbound10:58:266
2990492992119,2cyclictest2942559-21kworker/u16:4+flush-8:008:28:086
2990492992118,2cyclictest3463225-21kworker/u16:1+flush-8:011:28:226
2990492992118,2cyclictest3151575-21kworker/u16:2+events_unbound08:53:266
2990488992119,2cyclictest3413031-21kworker/u16:4+events_unbound11:08:345
2990488992119,2cyclictest3413031-21kworker/u16:4+events_unbound11:08:345
2990488992119,2cyclictest3150336-21kworker/u16:1+events_unbound08:33:315
2990488992119,2cyclictest3013947-21kworker/u16:0+flush-8:008:43:075
2990492992019,1cyclictest3492173-21kworker/u16:0+events_unbound12:25:226
2990488992018,2cyclictest3295337-21kworker/u16:1+flush-8:010:23:415
2990488992018,2cyclictest3256621-21kworker/u16:0+events_unbound10:18:385
2990488992018,2cyclictest3169513-21kworker/u16:4+flush-8:009:13:085
2990488992018,2cyclictest2942559-21kworker/u16:4+flush-8:007:18:335
2990488992018,2cyclictest2942559-21kworker/u16:4+events_unbound07:13:365
2990488992018,2cyclictest2942559-21kworker/u16:4+events_unbound07:13:365
2990486992018,2cyclictest3511248-21kworker/u16:1+flush-8:012:28:074
2990486992018,2cyclictest3151575-21kworker/u16:2+flush-8:009:03:334
2990486992018,2cyclictest2942559-21kworker/u16:4+events_unbound07:58:314
2990486992017,2cyclictest3492173-21kworker/u16:0+flush-8:012:33:264
2990496991918,0cyclictest0-21swapper/711:58:307
2990492991917,2cyclictest3453124-21kworker/u16:2+flush-8:011:33:366
2990488991917,2cyclictest3267002-21kworker/u16:1+events_unbound09:33:375
2990488991917,2cyclictest3267002-21kworker/u16:1+events_unbound09:33:375
2990488991917,2cyclictest3013947-21kworker/u16:0+flush-8:007:23:355
2990488991917,2cyclictest2970988-21kworker/u16:1+events_unbound07:53:245
2990486991917,2cyclictest3463225-21kworker/u16:1+events_unbound11:28:244
2990486991916,2cyclictest3151575-21kworker/u16:2+events_unbound08:43:244
2990486991915,3cyclictest3492173-21kworker/u16:0+flush-8:012:03:224
2990496991814,3cyclictest1267-21snmpd11:32:387
2990492991816,2cyclictest3038968-21kworker/u16:2+events_unbound07:33:416
2990492991815,2cyclictest2942559-21kworker/u16:4+flush-8:007:18:126
2990492991815,2cyclictest2942559-21kworker/u16:4+flush-8:007:18:126
2990488991816,2cyclictest3511248-21kworker/u16:1+events_unbound11:53:315
2990488991816,2cyclictest3511248-21kworker/u16:1+events_unbound11:53:075
2990488991816,2cyclictest3492173-21kworker/u16:0+flush-8:012:28:335
2990488991816,2cyclictest3326659-21kworker/u16:3+flush-8:010:08:415
2990488991816,2cyclictest3295337-21kworker/u16:1+flush-8:010:58:335
2990488991816,2cyclictest3217186-21kworker/u16:6+events_unbound09:43:395
2990488991816,2cyclictest3198859-21kworker/u16:3+events_unbound09:18:265
2990496991716,0cyclictest0-21swapper/709:23:267
2990496991715,1cyclictest0-21swapper/710:33:357
2990492991715,2cyclictest3568935-21kworker/u16:4+flush-8:012:33:416
2990492991715,2cyclictest3511248-21kworker/u16:1+events_unbound11:53:396
2990492991715,2cyclictest3413031-21kworker/u16:4+flush-8:011:38:426
2990492991715,2cyclictest3295337-21kworker/u16:1+events_unbound10:48:076
2990488991715,2cyclictest3492173-21kworker/u16:0+events_unbound12:33:275
2990488991715,2cyclictest3453124-21kworker/u16:2+flush-8:011:28:355
2990488991715,2cyclictest3256621-21kworker/u16:0+flush-8:010:38:335
2990486991715,2cyclictest3568935-21kworker/u16:4+flush-8:012:18:324
2990486991715,2cyclictest3169513-21kworker/u16:4+events_unbound08:48:304
2990486991715,2cyclictest3169513-21kworker/u16:4+events_unbound08:48:304
2990486991715,2cyclictest3038968-21kworker/u16:2+flush-8:007:43:354
2990486991713,3cyclictest3326659-21kworker/u16:3+events_unbound10:08:324
2990496991614,1cyclictest0-21swapper/712:03:377
2990496991611,4cyclictest3364171-21latency_hist10:28:127
2990492991614,2cyclictest3169513-21kworker/u16:4+events_unbound08:48:366
2990492991614,2cyclictest3169513-21kworker/u16:4+events_unbound08:48:366
2990492991613,2cyclictest3453124-21kworker/u16:2+flush-8:011:23:316
2990492991613,2cyclictest3267002-21kworker/u16:1+flush-8:009:33:306
2990492991613,2cyclictest3267002-21kworker/u16:1+flush-8:009:33:306
2990488991614,2cyclictest2942559-21kworker/u16:4+flush-8:008:08:375
2990488991614,2cyclictest2942559-21kworker/u16:4+events_unbound07:43:205
2990486991614,2cyclictest3413031-21kworker/u16:4+flush-8:011:38:354
2990486991614,2cyclictest3217186-21kworker/u16:6+events_unbound09:18:364
2990486991613,2cyclictest0-21swapper/412:08:274
2990496991511,3cyclictest0-21swapper/710:18:127
299049699150,13cyclictest901-21avahi-daemon08:58:137
299049699150,13cyclictest0-21swapper/709:48:367
2990492991513,2cyclictest3295337-21kworker/u16:1+events_unbound10:28:246
299049299150,15cyclictest0-21swapper/609:28:036
2990488991513,2cyclictest3453124-21kworker/u16:2+events_unbound11:38:285
2990488991513,2cyclictest3295337-21kworker/u16:1+flush-8:010:32:235
2990488991513,2cyclictest3295337-21kworker/u16:1+events_unbound10:55:245
2990488991513,2cyclictest3217186-21kworker/u16:6+events_unbound09:23:255
2990488991513,2cyclictest3101722-21kworker/u16:1+events_unbound08:13:285
2990488991513,2cyclictest2970988-21kworker/u16:1+flush-8:007:33:335
2990486991513,2cyclictest3013947-21kworker/u16:0+events_unbound08:53:414
2990486991511,3cyclictest3150861-21diskstats08:33:244
299049699148,5cyclictest3402953-21latency_hist10:48:127
2990496991412,1cyclictest0-21swapper/712:28:357
2990496991412,1cyclictest0-21swapper/712:08:347
2990496991411,2cyclictest1267-21snmpd10:08:037
299049699140,1cyclictest0-21swapper/711:33:357
2990492991412,2cyclictest3217186-21kworker/u16:6+flush-8:009:13:386
2990488991412,2cyclictest3295337-21kworker/u16:1+flush-8:010:44:095
2990488991412,2cyclictest3295337-21kworker/u16:1+events_unbound10:33:335
2990488991412,2cyclictest3256621-21kworker/u16:0+events_unbound09:38:305
2990488991412,2cyclictest2942559-21kworker/u16:4+events_unbound08:23:435
2990486991413,1cyclictest0-21swapper/411:03:394
2990486991412,2cyclictest3568935-21kworker/u16:4+events_unbound12:28:394
2990486991412,2cyclictest3217186-21kworker/u16:6+flush-8:009:43:324
2990486991412,2cyclictest3169513-21kworker/u16:4+flush-8:009:28:274
2990486991412,2cyclictest3004207-21kworker/u16:3+events_unbound07:23:364
299049699139,3cyclictest902-21dbus-daemon08:58:127
299049699139,3cyclictest1267-21snmpd12:35:017
299049699139,3cyclictest1267-21snmpd12:19:047
299049699139,3cyclictest1267-21snmpd11:23:087
299049699139,3cyclictest1267-21snmpd11:02:017
299049699139,3cyclictest1267-21snmpd10:42:287
299049699139,3cyclictest1267-21snmpd09:30:327
299049699139,3cyclictest1267-21snmpd07:58:387
299049699137,5cyclictest3589073-21latency_hist12:28:127
299049699136,6cyclictest6184-21gvfs-afc-volume09:33:357
299049699136,6cyclictest6184-21gvfs-afc-volume09:33:357
299049699134,8cyclictest0-21swapper/707:08:317
2990496991310,2cyclictest0-21swapper/708:28:137
2990492991312,1cyclictest0-21swapper/612:14:416
2990492991312,1cyclictest0-21swapper/610:08:436
2990492991312,1cyclictest0-21swapper/609:58:296
2990492991312,1cyclictest0-21swapper/607:45:256
2990492991312,1cyclictest0-21swapper/607:20:216
2990492991311,2cyclictest3296878-21kworker/u16:2+events_unbound10:03:316
2990492991311,2cyclictest3102648-21kworker/u16:3+events_unbound08:28:426
299049299130,0cyclictest0-21swapper/609:43:206
299048899138,4cyclictest3316943-21cat10:03:275
299048899138,4cyclictest3307283-21cat09:58:235
2990488991311,2cyclictest3568935-21kworker/u16:4+flush-8:012:23:375
2990488991311,2cyclictest3511248-21kworker/u16:1+events_unbound12:13:355
2990488991311,2cyclictest2942559-21kworker/u16:4+flush-8:008:28:395
2990488991311,2cyclictest2942559-21kworker/u16:4+flush-8:007:28:235
299048699138,4cyclictest3277224-21tune2fs09:38:264
2990486991311,2cyclictest3511248-21kworker/u16:1+flush-8:012:13:354
2990486991311,2cyclictest3413031-21kworker/u16:4+flush-8:010:58:234
2990486991311,2cyclictest3267002-21kworker/u16:1+flush-8:009:33:354
2990486991311,2cyclictest3267002-21kworker/u16:1+flush-8:009:33:354
2990486991311,2cyclictest2970988-21kworker/u16:1+events_unbound07:53:394
299049699129,2cyclictest1267-21snmpd11:13:207
299049699128,3cyclictest3423500-21/usr/sbin/munin11:03:387
299049699128,3cyclictest1267-21snmpd11:24:477
299049699128,3cyclictest1267-21snmpd10:55:347
299049699128,3cyclictest1267-21snmpd10:10:067
299049699128,3cyclictest1267-21snmpd10:00:487
299049699128,3cyclictest1267-21snmpd09:15:477
299049699128,3cyclictest1267-21snmpd08:08:487
299049699127,4cyclictest1267-21snmpd07:30:597
299049699126,5cyclictest3511574-21latency_hist11:48:127
299049699121,9cyclictest0-21swapper/710:48:257
299049699120,11cyclictest96-21ksoftirqd/709:03:277
299049699120,11cyclictest1267-21snmpd08:04:427
299049699120,11cyclictest1267-21snmpd07:50:177
299049699120,11cyclictest0-21swapper/707:38:367
299049699120,10cyclictest1267-21snmpd08:48:017
2990492991211,1cyclictest0-21swapper/608:34:466
2990492991211,1cyclictest0-21swapper/608:15:226
2990492991210,2cyclictest3256621-21kworker/u16:0+events_unbound10:38:266
2990492991210,2cyclictest3198859-21kworker/u16:3+flush-8:009:03:176
2990492991210,2cyclictest2970988-21kworker/u16:1+flush-8:007:08:356
299049299120,0cyclictest0-21swapper/611:50:256
299048899129,2cyclictest3492173-21kworker/u16:0+events_unbound12:08:145
2990488991211,1cyclictest0-21swapper/508:03:355
2990488991210,2cyclictest3295337-21kworker/u16:1+events_unbound10:51:325
2990488991210,2cyclictest3277435-21kworker/u16:3+flush-8:009:49:225
2990488991210,2cyclictest3217186-21kworker/u16:6+events_unbound09:31:245
299048899120,1cyclictest0-21swapper/507:09:495
299048699128,3cyclictest3512741-21cat11:48:254
2990486991210,2cyclictest3277435-21kworker/u16:3+flush-8:009:53:124
2990486991210,2cyclictest3256621-21kworker/u16:0+flush-8:010:03:384
2990486991210,2cyclictest3102648-21kworker/u16:3+flush-8:008:23:324
299049699118,2cyclictest1267-21snmpd10:20:367
299049699118,2cyclictest1267-21snmpd09:21:417
299049699118,2cyclictest1267-21snmpd07:43:177
299049699117,3cyclictest1267-21snmpd10:28:487
299049699117,3cyclictest1267-21snmpd09:56:097
299049699117,3cyclictest1267-21snmpd08:21:187
299049699117,3cyclictest1267-21snmpd07:23:137
299049699117,3cyclictest1267-21snmpd07:18:227
299049699115,5cyclictest6184-21gvfs-afc-volume12:13:297
299049699115,5cyclictest3501907-21latency_hist11:43:117
299049699111,8cyclictest0-21swapper/708:33:287
299049699110,9cyclictest0-21swapper/708:23:327
299049699110,10cyclictest1267-21snmpd11:55:397
299049299119,2cyclictest3169513-21kworker/u16:4+flush-8:009:28:316
2990492991110,1cyclictest0-21swapper/612:28:436
2990492991110,1cyclictest0-21swapper/610:51:176
2990492991110,1cyclictest0-21swapper/609:55:576
2990492991110,1cyclictest0-21swapper/607:32:486
299049299110,11cyclictest0-21swapper/612:09:486
299049299110,0cyclictest0-21swapper/612:07:266
299049299110,0cyclictest0-21swapper/611:14:286
299048899119,2cyclictest3256621-21kworker/u16:0+events_unbound11:05:055
299048899110,11cyclictest0-21swapper/512:02:545
299048699119,2cyclictest3101722-21kworker/u16:1+flush-8:008:08:324
299048699118,2cyclictest3349386-21kthreadcore10:18:314
2990486991110,1cyclictest0-21swapper/410:14:374
2990486991110,1cyclictest0-21swapper/409:14:054
2990486991110,1cyclictest0-21swapper/408:14:584
299048699110,11cyclictest0-21swapper/409:08:534
299048699110,11cyclictest0-21swapper/407:34:084
299048699110,0cyclictest0-21swapper/408:29:284
299049699106,3cyclictest1267-21snmpd07:53:207
299049699100,8cyclictest1267-21snmpd11:48:157
299049299109,1cyclictest0-21swapper/610:33:386
299049299109,1cyclictest0-21swapper/609:48:146
299049299108,2cyclictest2970988-21kworker/u16:1+events_unbound07:38:256
299048899108,2cyclictest3013947-21kworker/u16:0+flush-8:007:48:435
299048899107,2cyclictest3178700-21users08:43:405
299048699109,1cyclictest0-21swapper/410:45:224
299048699109,1cyclictest0-21swapper/410:42:514
299048699109,1cyclictest0-21swapper/409:24:394
29904929998,1cyclictest0-21swapper/608:00:436
29904929997,1cyclictest0-21swapper/607:23:336
29904869998,1cyclictest0-21swapper/411:19:444
29904869998,1cyclictest0-21swapper/410:27:244
29904869998,1cyclictest0-21swapper/409:53:304
29904869998,1cyclictest0-21swapper/408:40:494
29904869995,3cyclictest3404135-21cat10:48:264
29904869994,4cyclictest3128045-21cut08:18:324
29904929986,2cyclictest3295337-21kworker/u16:1+flush-8:010:13:226
29904929986,1cyclictest0-21swapper/612:18:246
29904929986,1cyclictest0-21swapper/607:53:306
29904929985,2cyclictest0-21swapper/611:18:346
29904929984,3cyclictest3169924-21tr08:43:236
29904869983,4cyclictest3527307-21grep11:53:304
29904869983,4cyclictest3060586-21grep07:38:324
29904869983,4cyclictest3015217-21cat07:18:304
29904929976,1cyclictest0-21swapper/610:56:206
29904929976,1cyclictest0-21swapper/608:03:426
29904929973,3cyclictest3160057-21grep08:38:236
29904869972,4cyclictest3446663-21kthreadcore11:13:284
29904869965,1cyclictest0-21swapper/408:06:084
29904869950,4cyclictest3413043-21taskset10:53:344
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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