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2025-12-17 - 22:26
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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 Wed Dec 17, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315661921720,0sleep40-21swapper/410:49:594
271825426352,8sleep60-21swapper/607:08:166
271833825520,31sleep70-21swapper/707:09:297
2718646994441,2cyclictest2945023-21kworker/u16:0+flush-8:009:14:406
626589400,33rtkit-daemon0-21swapper/407:08:164
2718646993936,2cyclictest2819242-21kworker/u16:0+flush-8:008:04:396
271832723827,8sleep50-21swapper/507:09:195
2718634993431,2cyclictest2887362-21kworker/u16:3+events_unbound09:34:414
2718634993431,2cyclictest2680668-21kworker/u16:1+events_unbound07:09:414
2718650993231,0cyclictest0-21swapper/709:09:547
2718638993229,2cyclictest3208465-21kworker/u16:2+events_unbound11:40:055
2718650992926,2cyclictest2955134-21cat09:09:407
2718646992926,3cyclictest2751573-21kworker/u16:2+events_unbound07:50:026
2718634992927,2cyclictest2808630-21kworker/u16:1+events_unbound08:02:504
32170502280,1chrt3217049-21cat11:24:397
2718646992824,3cyclictest3099372-21kworker/u16:2+events_unbound10:39:566
2718634992826,2cyclictest3050932-21kworker/u16:1+events_unbound10:08:014
271865099270,25cyclictest3207269-21latency_hist11:19:397
2718638992725,2cyclictest3021718-21kworker/u16:0+events_unbound10:27:455
2718638992725,2cyclictest2973183-21kworker/u16:4+events_unbound10:50:095
2718638992724,2cyclictest3099372-21kworker/u16:2+flush-8:010:44:405
2718634992725,2cyclictest2819242-21kworker/u16:0+events_unbound08:08:504
2718650992622,3cyclictest3247155-21sed11:39:527
2718638992624,2cyclictest3226315-21kworker/u16:1+events_unbound12:11:375
2718634992624,2cyclictest3031502-21kworker/u16:1+events_unbound09:46:464
2718634992624,2cyclictest2973183-21kworker/u16:4+events_unbound09:24:394
2718634992624,2cyclictest2751573-21kworker/u16:2+events_unbound07:49:414
2718634992624,2cyclictest2734166-21kworker/u16:0+events_unbound07:45:094
2718634992623,2cyclictest2859392-21kworker/u16:2+events_unbound09:04:414
2718638992523,2cyclictest3264081-21kworker/u16:4+flush-8:011:50:045
2718638992523,2cyclictest2751573-21kworker/u16:2+events_unbound07:48:465
2718634992523,2cyclictest3208465-21kworker/u16:2+events_unbound11:20:504
2718634992523,2cyclictest3021718-21kworker/u16:0+events_unbound11:41:494
2718634992522,2cyclictest3099372-21kworker/u16:2+events_unbound10:34:494
2718634992522,2cyclictest3021718-21kworker/u16:0+flush-8:010:09:514
2718634992522,2cyclictest2887362-21kworker/u16:3+events_unbound08:56:374
2718634992522,2cyclictest2808630-21kworker/u16:1+events_unbound08:39:414
2718646992422,2cyclictest3208465-21kworker/u16:2+flush-8:011:19:566
2718646992422,2cyclictest3159160-21kworker/u16:1+events_unbound11:04:576
2718646992422,2cyclictest2887362-21kworker/u16:3+flush-8:009:00:026
2718638992422,2cyclictest2819242-21kworker/u16:0+flush-8:008:00:075
2718638992422,2cyclictest2751573-21kworker/u16:2+events_unbound07:39:335
2718634992422,2cyclictest3050932-21kworker/u16:1+events_unbound10:19:564
2718634992422,2cyclictest3050932-21kworker/u16:1+events_unbound10:19:564
2718634992422,2cyclictest2859392-21kworker/u16:2+events_unbound08:29:334
2718634992422,2cyclictest2819242-21kworker/u16:0+events_unbound08:47:454
2718634992422,2cyclictest2819242-21kworker/u16:0+events_unbound08:47:454
2718634992421,2cyclictest2751573-21kworker/u16:2+flush-8:007:39:404
2718634992420,3cyclictest2973183-21kworker/u16:4+flush-8:010:55:054
2718638992321,2cyclictest3264081-21kworker/u16:4+events_unbound12:34:375
2718638992321,2cyclictest3264081-21kworker/u16:4+events_unbound11:56:505
2718638992321,2cyclictest3208465-21kworker/u16:2+events_unbound12:25:575
2718638992321,2cyclictest3021718-21kworker/u16:0+events_unbound11:11:375
2718638992321,2cyclictest3021718-21kworker/u16:0+events_unbound11:11:375
2718638992321,2cyclictest3021718-21kworker/u16:0+events_unbound10:21:535
2718638992321,2cyclictest3021718-21kworker/u16:0+events_unbound10:21:535
2718638992321,2cyclictest2973183-21kworker/u16:4+events_unbound10:38:105
2718638992321,2cyclictest2792186-21kworker/u16:3+events_unbound08:10:535
2718638992321,2cyclictest2680668-21kworker/u16:1+events_unbound07:41:265
2718634992321,2cyclictest3167572-21kworker/u16:3+events_unbound11:03:464
2718634992321,2cyclictest3032766-21kworker/u16:3+flush-8:009:59:534
2718650992221,0cyclictest0-21swapper/710:15:097
2718650992221,0cyclictest0-21swapper/707:14:457
2718650992216,5cyclictest3197590-21latency_hist11:14:397
2718650992216,5cyclictest3197590-21latency_hist11:14:397
2718638992220,2cyclictest3264081-21kworker/u16:4+events_unbound11:45:415
2718638992220,2cyclictest2973183-21kworker/u16:4+events_unbound10:31:375
2718638992220,2cyclictest2973183-21kworker/u16:4+events_unbound09:41:455
2718638992220,2cyclictest2751573-21kworker/u16:2+events_unbound07:27:535
2718638992219,2cyclictest2792186-21kworker/u16:3+events_unbound07:54:405
2718638992219,2cyclictest2792186-21kworker/u16:3+events_unbound07:54:405
2718634992220,2cyclictest3208465-21kworker/u16:2+events_unbound11:45:364
2718634992220,2cyclictest2808630-21kworker/u16:1+events_unbound07:58:464
2718634992220,2cyclictest2808630-21kworker/u16:1+events_unbound07:58:464
2718634992220,2cyclictest2751573-21kworker/u16:2+events_unbound07:37:514
2718634992219,2cyclictest3021718-21kworker/u16:0+events_unbound11:14:514
2718646992119,2cyclictest2751573-21kworker/u16:2+flush-8:007:40:056
2718638992119,2cyclictest3226315-21kworker/u16:1+events_unbound12:19:385
2718638992119,2cyclictest3021718-21kworker/u16:0+events_unbound11:03:215
2718638992119,2cyclictest2887362-21kworker/u16:3+flush-8:009:00:035
2718638992119,2cyclictest2887362-21kworker/u16:3+events_unbound09:23:255
2718638992119,2cyclictest2808630-21kworker/u16:1+events_unbound08:25:545
2718638992119,2cyclictest2808630-21kworker/u16:1+events_unbound07:52:545
2718638992118,2cyclictest2718399-21kworker/u16:4+events_unbound07:09:535
2718634992119,2cyclictest3159160-21kworker/u16:1+events_unbound11:07:374
2718634992119,2cyclictest2792186-21kworker/u16:3+events_unbound08:11:304
2718650992019,0cyclictest0-21swapper/710:00:067
2718638992018,2cyclictest3264081-21kworker/u16:4+events_unbound12:21:455
2718638992018,2cyclictest3021718-21kworker/u16:0+events_unbound11:15:575
2718638992018,2cyclictest2887362-21kworker/u16:3+events_unbound09:36:545
2718638992018,2cyclictest2887362-21kworker/u16:3+events_unbound09:28:505
2718638992018,2cyclictest2859392-21kworker/u16:2+events_unbound08:34:595
2718638992018,2cyclictest2718399-21kworker/u16:4+events_unbound07:17:015
2718634992018,2cyclictest3208465-21kworker/u16:2+events_unbound11:53:214
2718634992018,2cyclictest2859392-21kworker/u16:2+flush-8:009:39:594
2718650991918,0cyclictest0-21swapper/711:54:517
2718650991918,0cyclictest0-21swapper/710:10:297
2718650991918,0cyclictest0-21swapper/709:52:447
2718650991918,0cyclictest0-21swapper/709:23:137
2718650991918,0cyclictest0-21swapper/708:36:297
2718650991918,0cyclictest0-21swapper/707:36:217
2718650991913,5cyclictest650-21systemd-journal10:05:027
2718646991917,2cyclictest3208465-21kworker/u16:2+flush-8:012:09:396
2718646991916,2cyclictest2859392-21kworker/u16:2+flush-8:008:24:546
2718638991917,2cyclictest3264081-21kworker/u16:4+events_unbound12:03:405
2718638991917,2cyclictest3226315-21kworker/u16:1+events_unbound11:30:415
2718638991917,2cyclictest3208465-21kworker/u16:2+events_unbound12:08:495
2718638991917,2cyclictest2973183-21kworker/u16:4+events_unbound09:16:415
2718638991917,2cyclictest2887362-21kworker/u16:3+events_unbound08:49:545
2718638991917,2cyclictest2859392-21kworker/u16:2+events_unbound08:41:515
2718638991917,2cyclictest2808630-21kworker/u16:1+events_unbound08:30:105
2718638991916,2cyclictest2973183-21kworker/u16:4+events_unbound10:39:425
2718634991917,2cyclictest3264081-21kworker/u16:4+events_unbound11:59:384
2718634991917,2cyclictest2973183-21kworker/u16:4+flush-8:010:33:454
2718634991917,2cyclictest2945023-21kworker/u16:0+events_unbound09:01:514
2718634991917,2cyclictest2819242-21kworker/u16:0+events_unbound08:15:094
2718634991917,2cyclictest2808630-21kworker/u16:1+events_unbound08:30:514
2718650991814,3cyclictest1267-21snmpd10:19:417
2718650991814,3cyclictest1267-21snmpd10:19:417
2718638991816,2cyclictest3264081-21kworker/u16:4+events_unbound12:38:085
2718638991816,2cyclictest3208465-21kworker/u16:2+events_unbound11:20:545
2718638991816,2cyclictest3159160-21kworker/u16:1+events_unbound11:04:535
2718638991816,2cyclictest3159160-21kworker/u16:1+events_unbound10:57:535
2718638991816,2cyclictest3050932-21kworker/u16:1+events_unbound10:11:535
2718638991816,2cyclictest2915322-21kworker/u16:5+events_unbound08:55:425
2718638991816,2cyclictest2887362-21kworker/u16:3+events_unbound09:33:545
2718638991815,2cyclictest2973183-21kworker/u16:4+events_unbound09:44:415
2718634991816,2cyclictest2751573-21kworker/u16:2+events_unbound07:32:334
2718650991716,0cyclictest0-21swapper/712:13:327
2718650991716,0cyclictest0-21swapper/711:31:597
2718650991716,0cyclictest0-21swapper/709:41:367
2718650991716,0cyclictest0-21swapper/709:25:507
2718650991716,0cyclictest0-21swapper/708:32:447
2718650991716,0cyclictest0-21swapper/707:58:577
2718650991716,0cyclictest0-21swapper/707:58:577
2718650991711,5cyclictest2751352-21latency_hist07:24:407
271865099171,14cyclictest902-21dbus-daemon12:04:397
2718646991715,2cyclictest3099372-21kworker/u16:2+events_unbound10:44:536
2718638991715,2cyclictest3208465-21kworker/u16:2+events_unbound11:36:265
2718638991715,2cyclictest2973183-21kworker/u16:4+events_unbound10:02:265
2718638991715,2cyclictest2819242-21kworker/u16:0+events_unbound08:45:055
2718638991715,2cyclictest2819242-21kworker/u16:0+events_unbound08:45:055
2718638991715,2cyclictest2808630-21kworker/u16:1+events_unbound08:20:535
2718634991715,2cyclictest3208465-21kworker/u16:2+flush-8:012:30:004
2718634991715,2cyclictest2973183-21kworker/u16:4+flush-8:010:15:044
2718650991615,0cyclictest0-21swapper/711:52:207
2718646991612,3cyclictest3341285-21kworker/u16:0+flush-8:012:25:036
271864699160,15cyclictest3256821-21hddtemp_smartct11:44:536
2718638991614,2cyclictest2955445-21kworker/u16:1+events_unbound09:12:255
2718638991614,2cyclictest2819242-21kworker/u16:0+flush-8:008:15:105
2718638991613,2cyclictest3021718-21kworker/u16:0+flush-8:009:54:405
2718634991614,2cyclictest3264081-21kworker/u16:4+events_unbound12:35:454
2718634991614,2cyclictest3208465-21kworker/u16:2+events_unbound11:59:594
2718634991614,2cyclictest3099372-21kworker/u16:2+events_unbound10:40:274
2718634991614,2cyclictest3021718-21kworker/u16:0+events_unbound11:33:424
2718634991614,2cyclictest2945023-21kworker/u16:0+events_unbound09:09:584
2718634991614,2cyclictest2887362-21kworker/u16:3+flush-8:009:24:554
2718634991614,2cyclictest2887362-21kworker/u16:3+events_unbound09:31:534
2718634991614,2cyclictest2859392-21kworker/u16:2+events_unbound08:36:334
2718634991614,2cyclictest2808630-21kworker/u16:1+events_unbound08:23:334
2718634991614,2cyclictest2751573-21kworker/u16:2+events_unbound07:29:334
271865099157,7cyclictest6450-21gmain07:45:047
271865099157,7cyclictest6344-21gmain11:44:527
2718650991515,0cyclictest0-21swapper/709:30:147
2718650991514,0cyclictest0-21swapper/710:50:527
2718650991514,0cyclictest0-21swapper/710:37:127
2718650991514,0cyclictest0-21swapper/708:58:207
2718646991513,2cyclictest3099372-21kworker/u16:2+events_unbound10:24:396
2718646991513,2cyclictest3099372-21kworker/u16:2+events_unbound10:24:396
2718646991513,2cyclictest2973183-21kworker/u16:4+flush-8:010:54:566
2718646991513,2cyclictest2859392-21kworker/u16:2+flush-8:009:54:396
2718646991513,2cyclictest2751573-21kworker/u16:2+flush-8:007:24:566
2718646991512,2cyclictest2765502-21grep07:29:576
2718638991513,2cyclictest2973183-21kworker/u16:4+events_unbound10:17:455
2718638991513,2cyclictest2751573-21kworker/u16:2+events_unbound07:31:225
2718638991513,2cyclictest2680668-21kworker/u16:1+events_unbound07:20:515
2718634991513,2cyclictest3050932-21kworker/u16:1+events_unbound10:25:504
2718634991513,2cyclictest2915322-21kworker/u16:5+flush-8:008:50:094
2718634991513,2cyclictest2859392-21kworker/u16:2+events_unbound09:15:504
271865099149,3cyclictest1267-21snmpd08:46:477
271865099149,3cyclictest1267-21snmpd08:46:477
2718650991413,0cyclictest0-21swapper/712:32:597
2718650991413,0cyclictest0-21swapper/711:01:187
2718650991413,0cyclictest0-21swapper/710:42:177
2718650991413,0cyclictest0-21swapper/709:38:207
2718650991410,3cyclictest3167512-21ntpq10:55:037
2718650991410,3cyclictest3114486-21cut10:29:577
2718646991412,2cyclictest3226315-21kworker/u16:1+flush-8:012:24:396
2718646991411,2cyclictest3264081-21kworker/u16:4+flush-8:011:49:566
271864699140,14cyclictest0-21swapper/608:09:506
2718638991412,2cyclictest3167572-21kworker/u16:3+events_unbound11:26:215
2718638991412,2cyclictest3021718-21kworker/u16:0+events_unbound09:51:105
2718638991412,2cyclictest2887362-21kworker/u16:3+events_unbound09:06:585
2718638991411,2cyclictest3050932-21kworker/u16:1+events_unbound10:04:455
2718634991413,1cyclictest0-21swapper/409:52:504
2718634991412,2cyclictest3264081-21kworker/u16:4+flush-8:012:19:344
271865099139,3cyclictest1267-21snmpd12:37:417
271865099139,3cyclictest1267-21snmpd09:56:227
271865099132,9cyclictest0-21swapper/710:45:017
2718650991312,0cyclictest0-21swapper/709:01:327
2718650991312,0cyclictest0-21swapper/708:09:487
2718650991312,0cyclictest0-21swapper/708:04:427
2718650991312,0cyclictest0-21swapper/708:01:217
2718650991312,0cyclictest0-21swapper/707:25:317
271865099130,11cyclictest2967723-21kthreadcore09:14:567
2718646991312,1cyclictest0-21swapper/610:59:576
2718646991312,1cyclictest0-21swapper/610:10:086
2718646991312,1cyclictest0-21swapper/608:50:026
2718646991311,2cyclictest3099372-21kworker/u16:2+flush-8:010:34:566
2718646991311,2cyclictest2887362-21kworker/u16:3+events_unbound09:34:536
2718646991311,2cyclictest2718399-21kworker/u16:4+flush-8:007:10:016
271864699130,1cyclictest0-21swapper/611:09:536
271864699130,1cyclictest0-21swapper/611:09:536
2718638991311,2cyclictest2808630-21kworker/u16:1+events_unbound08:08:545
271863499139,3cyclictest3226315-21kworker/u16:1+events_unbound12:11:414
2718634991311,2cyclictest3208465-21kworker/u16:2+events_unbound11:36:504
2718634991311,2cyclictest3159160-21kworker/u16:1+events_unbound11:14:374
2718634991311,2cyclictest3159160-21kworker/u16:1+events_unbound11:14:374
2718634991311,2cyclictest3032766-21kworker/u16:3+events_unbound09:55:264
2718634991311,2cyclictest2680668-21kworker/u16:1+events_unbound07:19:374
271863499130,13cyclictest0-21swapper/410:45:014
271865099129,2cyclictest2897214-21/usr/sbin/munin08:40:027
271865099129,2cyclictest1267-21snmpd08:17:597
271865099129,2cyclictest0-21swapper/707:09:407
271865099128,3cyclictest2858492-21/usr/sbin/munin08:20:087
271865099127,4cyclictest3343348-21date12:29:397
2718650991211,0cyclictest0-21swapper/712:20:587
2718650991211,0cyclictest0-21swapper/711:35:167
271865099120,1cyclictest0-21swapper/710:25:027
271865099120,11cyclictest96-21ksoftirqd/708:49:527
271865099120,10cyclictest2781715-21sed07:39:567
2718646991211,1cyclictest0-21swapper/612:29:586
2718646991210,2cyclictest2973183-21kworker/u16:4+events_unbound09:44:536
271864699120,1cyclictest0-21swapper/610:16:456
271864699120,12cyclictest0-21swapper/612:13:256
271864699120,12cyclictest0-21swapper/611:42:506
2718634991210,2cyclictest3208465-21kworker/u16:2+events_unbound12:26:524
271863499120,12cyclictest0-21swapper/412:22:084
271865099118,2cyclictest1267-21snmpd09:44:497
271865099118,2cyclictest1267-21snmpd07:52:587
271865099117,3cyclictest1267-21snmpd11:04:577
271865099117,3cyclictest1267-21snmpd07:31:067
271865099110,9cyclictest0-21swapper/712:15:007
271865099110,9cyclictest0-21swapper/712:04:547
271864699119,2cyclictest3050932-21kworker/u16:1+events_unbound10:04:536
2718646991110,1cyclictest0-21swapper/612:18:466
2718646991110,1cyclictest0-21swapper/612:02:236
2718646991110,1cyclictest0-21swapper/611:15:526
2718646991110,1cyclictest0-21swapper/608:18:596
271864699110,1cyclictest0-21swapper/607:23:486
271864699110,11cyclictest0-21swapper/611:28:196
271864699110,11cyclictest0-21swapper/610:30:566
271864699110,11cyclictest0-21swapper/609:08:486
271863499119,2cyclictest3208465-21kworker/u16:2+events_unbound12:08:414
271863499110,11cyclictest0-21swapper/411:28:034
2718650991010,0cyclictest0-21swapper/708:26:117
271865099100,9cyclictest3217621-21runrttasks11:24:507
271864699109,1cyclictest0-21swapper/610:54:076
271864699109,1cyclictest0-21swapper/609:32:366
271864699109,1cyclictest0-21swapper/608:05:166
271864699108,1cyclictest0-21swapper/608:34:546
271864699107,3cyclictest3032766-21kworker/u16:3+events_unbound09:59:546
271864699105,4cyclictest2771705-21tune2fs07:34:546
271864699100,0cyclictest0-21swapper/609:41:556
271863499108,2cyclictest2680668-21kworker/u16:1+events_unbound07:19:534
27186469998,1cyclictest0-21swapper/612:36:546
27186469998,1cyclictest0-21swapper/611:36:316
27186469998,1cyclictest0-21swapper/609:20:386
27186469997,2cyclictest3050932-21kworker/u16:1+events_unbound10:24:496
27186469987,1cyclictest0-21swapper/609:18:166
27186469987,1cyclictest0-21swapper/608:40:446
27186469987,1cyclictest0-21swapper/608:21:216
27186469986,1cyclictest0-21swapper/608:54:536
27186469986,1cyclictest0-21swapper/607:54:576
27186469986,1cyclictest0-21swapper/607:54:576
27186469985,2cyclictest2790560-21/usr/sbin/munin07:44:506
27186469985,2cyclictest0-21swapper/609:55:006
27186469983,4cyclictest3276409-21sed11:54:546
27186469983,4cyclictest3231784-21kthreadcore11:29:586
27186469983,4cyclictest2992809-21wc09:25:016
27186469983,4cyclictest2886153-21head08:30:026
27186469983,4cyclictest2736178-21cut07:14:576
27186469975,1cyclictest0-21swapper/608:44:576
27186469975,1cyclictest0-21swapper/608:44:576
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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