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2026-08-29 - 00:49
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Fri Aug 28, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33951952970,1sleep73395197-21cut12:15:127
269666425645,8sleep50-21swapper/507:06:355
269687725419,30sleep70-21swapper/707:09:347
269680824937,8sleep40-21swapper/407:08:354
269686723828,7sleep60-21swapper/607:09:256
2697164993634,2cyclictest3229819-21kworker/u16:6+events_unbound11:10:076
27619492290,1chrt2761950-21kthreadcore07:40:107
2697161992927,2cyclictest3270137-21kworker/u16:0+events_unbound11:35:425
2697161992927,2cyclictest3229818-21kworker/u16:5+flush-8:011:24:525
2697161992624,2cyclictest2971951-21kworker/u16:1+events_unbound09:25:055
2697164992523,2cyclictest3287284-21kworker/u16:1+flush-8:011:50:186
2697164992522,2cyclictest2925255-21kworker/u16:0+events_unbound09:05:076
2697164992422,2cyclictest2971951-21kworker/u16:1+flush-8:009:54:476
2697161992321,2cyclictest2993249-21kworker/u16:4+events_unbound10:03:375
33608822220,1chrt3360883-21kthreadcore12:00:147
2697161992220,2cyclictest2758465-21kworker/u16:1+flush-8:008:52:065
2697161992220,2cyclictest2020738-21kworker/u16:0+events_unbound07:31:115
2697161992119,2cyclictest2993249-21kworker/u16:4+flush-8:009:30:295
2697161992119,2cyclictest2855652-21kworker/u16:6+events_unbound08:41:425
2697161992119,2cyclictest2855652-21kworker/u16:6+events_unbound08:41:425
2697161992119,2cyclictest2855652-21kworker/u16:6+events_unbound08:31:465
2697161992119,2cyclictest2813108-21kworker/u16:0+flush-8:008:22:245
2697161992119,2cyclictest2768671-21kworker/u16:2+events_unbound07:43:295
2697161992117,2cyclictest2993249-21kworker/u16:4+events_unbound10:09:585
31936492200,1chrt3193647-21ssh10:53:547
31936492200,1chrt3193647-21ssh10:53:547
2697164992018,2cyclictest3227343-21kworker/u16:2+flush-8:011:20:226
2697161992018,2cyclictest2993249-21kworker/u16:4+events_unbound09:44:595
2697161992018,2cyclictest2993249-21kworker/u16:4+events_unbound09:34:595
2697161992018,2cyclictest2912133-21kworker/u16:4+events_unbound08:55:505
2697161992018,2cyclictest2768671-21kworker/u16:2+flush-8:007:53:545
2697161992018,2cyclictest2758465-21kworker/u16:1+events_unbound07:38:505
2697161992018,2cyclictest2676617-21kworker/u16:2+events_unbound07:13:225
2697159992018,2cyclictest2925255-21kworker/u16:0+events_unbound09:39:034
2697166991915,3cyclictest1277-21snmpd12:28:147
2697166991915,3cyclictest1277-21snmpd09:31:237
2697161991917,2cyclictest2912133-21kworker/u16:4+flush-8:009:08:175
2697161991917,2cyclictest2855652-21kworker/u16:6+events_unbound08:38:425
2697161991917,2cyclictest2768671-21kworker/u16:2+flush-8:007:56:465
2697161991917,2cyclictest2758465-21kworker/u16:1+events_unbound09:02:175
2697161991917,2cyclictest2758465-21kworker/u16:1+events_unbound08:19:375
2697161991917,2cyclictest2686962-21kworker/u16:3+flush-8:007:19:595
2697159991917,2cyclictest2971951-21kworker/u16:1+events_unbound09:40:234
2697166991811,5cyclictest648-21systemd-journal11:49:527
2697164991816,2cyclictest3064812-21kworker/u16:1+flush-8:010:00:476
2697161991816,2cyclictest2768671-21kworker/u16:2+events_unbound08:48:345
2697161991816,2cyclictest2758465-21kworker/u16:1+events_unbound08:08:425
2697161991816,2cyclictest2686962-21kworker/u16:3+flush-8:008:10:525
2697159991816,2cyclictest3439396-21kworker/u16:2+events_unbound12:39:184
2697159991816,2cyclictest3252516-21kworker/u16:3+events_unbound11:17:474
2697159991816,2cyclictest3092951-21kworker/u16:0+events_unbound10:42:504
2697159991816,2cyclictest2971951-21kworker/u16:1+events_unbound09:48:124
2697159991816,2cyclictest2894673-21kworker/u16:3+events_unbound09:10:104
2697166991713,3cyclictest1277-21snmpd12:06:257
2697166991712,4cyclictest0-21swapper/710:15:147
2697164991715,2cyclictest3021665-21kworker/u16:2+events_unbound10:34:476
2697161991715,2cyclictest2894673-21kworker/u16:3+flush-8:010:49:475
2697161991715,2cyclictest2813108-21kworker/u16:0+flush-8:008:25:285
2697161991715,2cyclictest2779905-21kworker/u16:4+events_unbound08:03:065
2697159991715,2cyclictest3315430-21kworker/u16:2+events_unbound11:41:474
2697159991715,2cyclictest2993249-21kworker/u16:4+events_unbound09:32:584
2697159991715,2cyclictest2894673-21kworker/u16:3+events_unbound09:21:384
2697159991715,2cyclictest2855652-21kworker/u16:6+events_unbound09:16:074
34523752160,1sleep60-21swapper/612:37:236
2697166991615,0cyclictest0-21swapper/709:39:537
2697166991614,1cyclictest0-21swapper/708:10:157
2697166991613,2cyclictest1277-21snmpd10:23:377
2697164991614,2cyclictest2686962-21kworker/u16:3+flush-8:007:10:076
2697161991614,2cyclictest3388630-21kworker/u16:2+events_unbound12:17:315
2697161991614,2cyclictest3270137-21kworker/u16:0+flush-8:011:49:525
2697161991614,2cyclictest2768671-21kworker/u16:2+events_unbound07:46:255
2697161991614,2cyclictest2706466-21kworker/u16:1+flush-8:007:17:215
2697159991614,2cyclictest3317983-21kworker/u16:4+events_unbound12:13:034
2697159991614,2cyclictest3229818-21kworker/u16:5+events_unbound11:29:384
2697159991614,2cyclictest3092951-21kworker/u16:0+events_unbound10:13:074
269716699159,5cyclictest648-21systemd-journal11:00:517
269716699157,7cyclictest6387-21gmain10:49:147
269716699156,8cyclictest5988-21gmain11:57:427
2697166991512,2cyclictest5805-21gsd-housekeepin09:24:587
269716699150,13cyclictest1277-21snmpd10:25:347
2697161991513,2cyclictest3227343-21kworker/u16:2+events_unbound11:08:145
2697161991513,2cyclictest3138359-21kworker/u16:4+flush-8:010:30:525
2697161991513,2cyclictest3092951-21kworker/u16:0+flush-8:010:39:475
2697161991513,2cyclictest2894673-21kworker/u16:3+events_unbound11:02:055
269716199150,1cyclictest0-21swapper/510:05:385
2697159991513,2cyclictest3363975-21kworker/u16:0+events_unbound12:29:384
2697159991513,2cyclictest3315430-21kworker/u16:2+events_unbound11:53:154
2697159991513,2cyclictest3229818-21kworker/u16:5+events_unbound11:32:554
2697159991513,2cyclictest3153644-21kworker/u16:1+events_unbound10:45:464
2697159991513,2cyclictest2706466-21kworker/u16:1+events_unbound07:17:034
2697159991512,2cyclictest6127-21gvfs-udisks2-vo12:05:424
34060032140,1sleep73406006-21cut12:20:097
2697166991412,1cyclictest0-21swapper/712:35:117
2697166991410,3cyclictest1277-21snmpd08:31:287
269716699140,12cyclictest3432869-21kthreadcore12:30:117
269716699140,12cyclictest3290088-21ntpq11:30:227
269716699140,12cyclictest3009369-21cat09:40:037
2697164991413,1cyclictest0-21swapper/612:15:186
2697164991413,1cyclictest0-21swapper/611:30:236
2697164991413,1cyclictest0-21swapper/609:38:276
2697164991413,1cyclictest0-21swapper/609:31:406
2697164991413,1cyclictest0-21swapper/607:15:096
2697164991411,2cyclictest3270137-21kworker/u16:0+flush-8:011:40:056
269716499140,1cyclictest0-21swapper/611:45:026
269716499140,14cyclictest0-21swapper/612:30:456
269716499140,14cyclictest0-21swapper/610:51:076
269716499140,14cyclictest0-21swapper/610:51:076
269716499140,14cyclictest0-21swapper/610:38:496
269716499140,14cyclictest0-21swapper/610:25:446
2697161991413,1cyclictest0-21swapper/512:25:095
2697161991413,1cyclictest0-21swapper/512:12:045
2697161991413,1cyclictest0-21swapper/512:01:215
2697161991413,1cyclictest0-21swapper/511:53:475
2697161991413,1cyclictest0-21swapper/511:26:495
2697161991413,1cyclictest0-21swapper/509:15:115
2697161991412,2cyclictest3315430-21kworker/u16:2+flush-8:011:59:475
2697161991412,2cyclictest3227343-21kworker/u16:2+flush-8:011:14:475
2697161991412,2cyclictest2993249-21kworker/u16:4+flush-8:010:20:125
2697161991412,2cyclictest2912133-21kworker/u16:4+events_unbound09:12:055
2697161991412,2cyclictest2720669-21kworker/u16:4+flush-8:007:26:545
2697161991411,3cyclictest3227343-21kworker/u16:2+events_unbound11:15:145
2697159991413,1cyclictest0-21swapper/410:03:004
2697159991412,2cyclictest3317983-21kworker/u16:4+events_unbound12:33:304
2697159991412,2cyclictest3021665-21kworker/u16:2+events_unbound10:16:194
2697159991412,2cyclictest2894673-21kworker/u16:3+events_unbound10:38:594
269715999140,14cyclictest0-21swapper/410:29:584
269715999140,14cyclictest0-21swapper/409:50:434
269715999140,14cyclictest0-21swapper/409:27:134
269716699139,3cyclictest1277-21snmpd08:08:437
269716699139,3cyclictest0-21swapper/709:55:237
269716699138,4cyclictest3232622-21cat11:10:077
269716699138,4cyclictest2935918-21cat09:10:087
269716699137,5cyclictest1277-21snmpd09:21:597
269716699136,6cyclictest3220184-21tune2fs11:05:077
269716699130,4cyclictest3041362-21kthreadcore09:50:157
269716699130,12cyclictest3391410-21sh12:13:467
269716699130,12cyclictest2888024-21kthreadcore08:45:117
269716699130,11cyclictest5907-21gmain09:45:307
269716699130,11cyclictest3315637-21sh11:40:497
269716699130,11cyclictest3272517-21kthreadcore11:25:107
269716699130,11cyclictest3152648-21kthreadcore10:35:157
269716699130,11cyclictest2907685-21kthreadcore08:55:107
269716699130,11cyclictest2795864-21grep07:55:147
2697164991312,1cyclictest0-21swapper/609:16:326
2697164991312,1cyclictest0-21swapper/607:55:116
2697164991310,2cyclictest3287284-21kworker/u16:1+events_unbound12:00:156
269716499130,13cyclictest0-21swapper/612:10:076
269716499130,13cyclictest0-21swapper/610:15:016
269716499130,13cyclictest0-21swapper/608:35:046
269716499130,13cyclictest0-21swapper/608:23:246
269716499130,0cyclictest0-21swapper/609:25:416
2697161991312,1cyclictest0-21swapper/509:54:085
2697161991311,2cyclictest3414186-21kworker/u16:1+events_unbound12:31:145
2697161991311,2cyclictest3317983-21kworker/u16:4+events_unbound12:35:105
2697161991311,2cyclictest2894673-21kworker/u16:3+events_unbound10:15:595
2697159991312,1cyclictest0-21swapper/412:04:434
2697159991312,1cyclictest0-21swapper/411:13:104
2697159991311,2cyclictest3315430-21kworker/u16:2+events_unbound11:56:194
2697159991311,2cyclictest3229818-21kworker/u16:5+events_unbound11:08:594
2697159991311,2cyclictest3153644-21kworker/u16:1+events_unbound10:58:184
2697159991311,2cyclictest3021665-21kworker/u16:2+events_unbound10:23:484
2697159991311,2cyclictest2993249-21kworker/u16:4+events_unbound09:54:534
2697159991311,2cyclictest2912133-21kworker/u16:4+events_unbound09:07:044
2697159991311,2cyclictest2855652-21kworker/u16:6+events_unbound08:48:034
2697159991311,2cyclictest2768671-21kworker/u16:2+events_unbound08:50:004
2697159991311,2cyclictest2758465-21kworker/u16:1+events_unbound08:29:154
2697159991311,2cyclictest2758465-21kworker/u16:1+events_unbound07:58:364
2697159991311,2cyclictest2676617-21kworker/u16:2+events_unbound07:13:204
269716699129,2cyclictest1277-21snmpd11:22:247
269716699129,2cyclictest1277-21snmpd08:37:497
269716699129,2cyclictest0-21swapper/707:10:027
269716699128,3cyclictest5907-21gmain10:30:547
269716699127,4cyclictest2799371-21cat08:00:077
269716699126,5cyclictest1277-21snmpd11:36:217
2697166991210,1cyclictest0-21swapper/709:15:107
269716699120,7cyclictest3342286-21ssh11:54:137
269716699120,11cyclictest3205087-21sh10:57:187
269716699120,10cyclictest5800-21gsd-color08:25:067
269716699120,10cyclictest3252100-21kthreadcore11:15:177
269716699120,10cyclictest3161362-21tr10:40:137
269716699120,10cyclictest3092191-21rm10:10:177
269716699120,10cyclictest2755884-21kthreadcore07:35:147
2697164991211,1cyclictest0-21swapper/611:03:256
2697164991211,1cyclictest0-21swapper/609:03:556
2697164991211,1cyclictest0-21swapper/608:14:546
2697164991210,2cyclictest3227343-21kworker/u16:2+flush-8:011:15:186
269716499120,12cyclictest0-21swapper/608:02:076
2697161991211,1cyclictest0-21swapper/509:41:505
2697161991210,2cyclictest3330362-21kworker/u16:5+events_unbound12:08:225
2697161991210,2cyclictest3270137-21kworker/u16:0+events_unbound11:39:545
2697161991210,2cyclictest3138359-21kworker/u16:4+events_unbound10:39:545
2697161991210,2cyclictest3092951-21kworker/u16:0+flush-8:010:55:025
2697161991210,2cyclictest3021665-21kworker/u16:2+flush-8:010:26:065
2697161991210,2cyclictest2894673-21kworker/u16:3+events_unbound10:51:145
2697161991210,2cyclictest2894673-21kworker/u16:3+events_unbound10:51:145
2697159991211,1cyclictest3305608-21munin-run11:39:524
2697159991211,1cyclictest2778758-21ls07:49:524
2697159991210,2cyclictest3227343-21kworker/u16:2+events_unbound11:22:484
2697159991210,2cyclictest2768671-21kworker/u16:2+events_unbound07:53:394
2697159991210,2cyclictest2758465-21kworker/u16:1+events_unbound08:57:204
2697159991210,2cyclictest2720669-21kworker/u16:4+events_unbound07:28:154
2697159991210,2cyclictest2020738-21kworker/u16:0+events_unbound07:31:034
269716699117,3cyclictest0-21swapper/707:14:547
269716699116,4cyclictest3059473-21tune2fs10:00:077
269716699116,4cyclictest2828562-21cat08:15:087
269716699116,4cyclictest2740684-21tune2fs07:30:067
269716699113,6cyclictest2785153-21kthreadcore07:50:137
269716699112,7cyclictest2915590-21cpuspeed_turbos09:00:057
269716699110,9cyclictest3072429-21kthreadcore10:05:127
269716699110,9cyclictest2839976-21cut08:20:107
269716699110,6cyclictest2777705-21netstat07:45:177
269716699110,4cyclictest2925986-21/usr/sbin/munin09:05:067
269716499119,2cyclictest3363975-21kworker/u16:0+events_unbound12:25:436
269716499117,3cyclictest3355020-21awk11:59:516
269716499114,6cyclictest0-21swapper/611:07:066
2697164991110,1cyclictest0-21swapper/612:07:446
2697164991110,1cyclictest0-21swapper/608:58:056
2697164991110,1cyclictest0-21swapper/608:28:276
2697164991110,1cyclictest0-21swapper/608:09:516
2697164991110,1cyclictest0-21swapper/607:35:106
2697164991110,1cyclictest0-21swapper/607:34:236
269716499110,1cyclictest0-21swapper/607:23:586
269716499110,11cyclictest0-21swapper/608:43:166
269716499110,11cyclictest0-21swapper/608:43:166
269716499110,11cyclictest0-21swapper/608:33:306
269716199119,2cyclictest3330362-21kworker/u16:5+events_unbound12:20:425
269716199119,2cyclictest3270137-21kworker/u16:0+flush-8:011:30:035
269716199119,2cyclictest2912133-21kworker/u16:4+events_unbound09:21:425
269716199119,2cyclictest2894673-21kworker/u16:3+flush-8:009:59:475
269715999119,2cyclictest3330362-21kworker/u16:5+events_unbound12:17:234
269715999119,2cyclictest3092951-21kworker/u16:0+events_unbound10:27:434
269715999119,2cyclictest2855652-21kworker/u16:6+events_unbound09:01:464
269715999119,2cyclictest2686962-21kworker/u16:3+events_unbound08:11:164
269715999119,2cyclictest2686962-21kworker/u16:3+events_unbound08:03:354
269715999119,1cyclictest2875868-21pool-udisksd08:35:434
269715999118,1cyclictest201rcu_preempt12:24:514
269715999117,3cyclictest3218961-21awk11:04:524
269715999116,3cyclictest0-21swapper/408:20:064
269715999115,3cyclictest0-21swapper/408:16:084
2697159991110,1cyclictest3083373-21cat10:09:524
2697159991110,1cyclictest0-21swapper/408:44:494
2697159991110,1cyclictest0-21swapper/408:44:494
2697159991110,1cyclictest0-21swapper/408:07:554
2697159991110,1cyclictest0-21swapper/407:37:304
269716699107,2cyclictest1277-21snmpd08:41:557
269716699107,2cyclictest1277-21snmpd08:41:557
269716699107,2cyclictest1277-21snmpd07:25:037
269716699103,6cyclictest2896022-21cpu08:50:057
269716699103,5cyclictest2721584-21irqcore07:20:097
269716499109,1cyclictest0-21swapper/608:52:156
269716499109,1cyclictest0-21swapper/607:51:436
269716499108,2cyclictest86-21ksoftirqd/610:40:086
269716499108,2cyclictest2894673-21kworker/u16:3+events_unbound09:45:076
269716499107,2cyclictest86-21ksoftirqd/610:56:086
269716499105,4cyclictest3120146-21latency_hist10:24:526
269715999109,1cyclictest2768982-21latency_hist07:44:524
269715999108,2cyclictest2894673-21kworker/u16:3+events_unbound10:50:194
269715999108,2cyclictest2894673-21kworker/u16:3+events_unbound10:50:194
269715999100,0cyclictest0-21swapper/408:30:004
26971649997,2cyclictest86-21ksoftirqd/612:20:066
26971649997,2cyclictest86-21ksoftirqd/611:35:086
26971649997,2cyclictest86-21ksoftirqd/611:28:106
26971649997,2cyclictest86-21ksoftirqd/609:58:406
26971649997,2cyclictest86-21ksoftirqd/609:20:066
26971649990,8cyclictest3021389-21cat09:44:536
26971649990,8cyclictest2946814-21taskset09:14:406
26971599997,2cyclictest2020738-21kworker/u16:0+events_unbound07:22:434
26971599995,1cyclictest3252516-21kworker/u16:3-events_unbound11:45:084
26971649987,1cyclictest0-21swapper/608:45:386
26971649986,2cyclictest86-21ksoftirqd/610:48:376
26971649986,2cyclictest86-21ksoftirqd/610:13:546
26971649986,1cyclictest0-21swapper/607:29:526
26971649980,7cyclictest0-21swapper/610:09:096
26971649976,1cyclictest0-21swapper/608:14:066
26971649965,1cyclictest0-21swapper/607:48:156
26971649960,1cyclictest0-21swapper/607:40:196
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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