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2026-09-12 - 16:14
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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 Sat Sep 12, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29165972950,1sleep50-21swapper/511:30:075
30020022940,1sleep40-21swapper/412:04:444
233192524737,7sleep50-21swapper/507:08:045
2332353994641,4cyclictest2680812-21latency_hist09:54:527
2332343994644,2cyclictest2618296-21kworker/u16:3+flush-8:009:30:114
2332343994139,2cyclictest2841492-21kworker/u16:5+events_unbound11:50:234
2332343994139,2cyclictest2594159-21kworker/u16:1+events_unbound09:44:554
2332343994138,2cyclictest2719192-21kworker/u16:2+events_unbound10:44:554
2332343994038,2cyclictest2754983-21kworker/u16:3+events_unbound11:26:524
2332343994038,2cyclictest2754983-21kworker/u16:3+events_unbound11:26:524
2332343994037,2cyclictest2594159-21kworker/u16:1+events_unbound10:41:554
233202224030,7sleep40-21swapper/407:09:234
23227722404,31sleep70-21swapper/707:05:017
2332353993933,5cyclictest2481913-21latency_hist08:24:527
2332343993937,2cyclictest2754983-21kworker/u16:3+events_unbound11:02:074
2332343993936,2cyclictest3051380-21kworker/u16:3+events_unbound12:30:074
2332343993936,2cyclictest2462170-21kworker/u16:2+events_unbound09:53:004
2332343993836,2cyclictest2841492-21kworker/u16:5+events_unbound11:47:554
2332343993836,2cyclictest2841492-21kworker/u16:5+events_unbound11:13:564
2332343993836,2cyclictest2754983-21kworker/u16:3+events_unbound10:53:114
2332343993836,2cyclictest2719192-21kworker/u16:2+events_unbound10:34:514
2332343993836,2cyclictest2462170-21kworker/u16:2+events_unbound09:39:154
2332343993735,2cyclictest2472460-21kworker/u16:3+events_unbound09:14:364
2332343993634,2cyclictest2841492-21kworker/u16:5+events_unbound11:17:474
2332343993634,2cyclictest2689731-21kworker/u16:3+events_unbound09:56:314
2332343993634,2cyclictest2462170-21kworker/u16:2+events_unbound09:43:394
2332343993634,2cyclictest2312779-21kworker/u16:1+flush-8:008:10:234
2332343993533,2cyclictest3073679-21kworker/u16:2+events_unbound12:37:194
2332343993533,2cyclictest2977409-21kworker/u16:3+events_unbound12:06:324
2332343993533,2cyclictest2977409-21kworker/u16:3+events_unbound12:06:324
2332343993533,2cyclictest2870788-21kworker/u16:0+events_unbound11:36:404
2332343993533,2cyclictest2816004-21kworker/u16:0+events_unbound10:56:354
2332343993533,2cyclictest2719192-21kworker/u16:2+events_unbound10:39:114
2332343993533,2cyclictest2618296-21kworker/u16:3+events_unbound09:29:354
2332343993533,2cyclictest2594159-21kworker/u16:1+events_unbound10:29:154
2332343993533,2cyclictest2462170-21kworker/u16:2+flush-8:009:20:074
2332343993533,2cyclictest2462170-21kworker/u16:2+flush-8:009:20:074
2332343993533,2cyclictest2283551-21kworker/u16:0+events_unbound07:14:564
2332343993432,2cyclictest3014471-21kworker/u16:1+events_unbound12:21:434
2332343993432,2cyclictest2916661-21kworker/u16:4+events_unbound11:43:394
2332343993432,2cyclictest2870788-21kworker/u16:0+events_unbound12:28:004
2332343993432,2cyclictest2641215-21kworker/u16:0+events_unbound10:04:004
2332343993432,2cyclictest2641215-21kworker/u16:0+events_unbound10:04:004
2332343993432,2cyclictest2594159-21kworker/u16:1+events_unbound10:09:114
2332343993432,2cyclictest2594159-21kworker/u16:1+events_unbound10:09:114
27656182330,1chrt2765617-21ssh10:26:547
2332343993331,2cyclictest3014471-21kworker/u16:1+flush-8:012:15:264
2332343993331,2cyclictest2870788-21kworker/u16:0+events_unbound11:58:004
2332343993331,2cyclictest2870788-21kworker/u16:0+events_unbound11:20:514
2332343993331,2cyclictest2641215-21kworker/u16:0+events_unbound10:16:114
2332343993330,3cyclictest2472460-21kworker/u16:3+events_unbound09:16:564
2332343993230,2cyclictest2916661-21kworker/u16:4+events_unbound11:31:264
2332343993129,2cyclictest3014471-21kworker/u16:1+events_unbound12:14:394
2332343993129,2cyclictest2841492-21kworker/u16:5+flush-8:011:05:274
2332343993129,2cyclictest2641215-21kworker/u16:0+events_unbound10:10:214
2332343993129,2cyclictest2472460-21kworker/u16:3+flush-8:008:45:184
2332352993028,2cyclictest2924766-21kworker/u16:6+flush-8:011:35:076
2332343993028,2cyclictest2641215-21kworker/u16:0+events_unbound10:22:484
2332343993028,2cyclictest2312779-21kworker/u16:1+events_unbound07:56:044
2332343992927,2cyclictest2415095-21kworker/u16:3+events_unbound08:02:044
2332343992927,2cyclictest2312779-21kworker/u16:1+events_unbound07:28:274
2332343992826,2cyclictest2283551-21kworker/u16:0+events_unbound07:43:044
2332343992825,2cyclictest2472460-21kworker/u16:3+events_unbound08:54:554
23889592270,1chrt2386386-21kthreadcore07:35:147
2332353992726,0cyclictest0-21swapper/709:05:077
2332352992724,2cyclictest2365395-21kworker/u16:2+flush-8:007:29:536
2332343992725,2cyclictest2462170-21kworker/u16:2+flush-8:008:40:184
2332343992725,2cyclictest2462170-21kworker/u16:2+events_unbound08:21:034
2332343992725,2cyclictest2365395-21kworker/u16:2+flush-8:007:35:084
2332343992725,2cyclictest2283551-21kworker/u16:0+flush-8:007:20:134
2332353992625,0cyclictest0-21swapper/709:25:077
2332353992625,0cyclictest0-21swapper/708:50:187
2332348992622,3cyclictest3014471-21kworker/u16:1+flush-8:012:24:525
2332343992624,2cyclictest2283551-21kworker/u16:0+events_unbound08:33:594
2332343992624,2cyclictest2283551-21kworker/u16:0+events_unbound07:45:054
23318422263,8sleep60-21swapper/607:06:536
233235399252,21cyclictest2332337-21cyclictest09:30:127
2332348992523,2cyclictest2977409-21kworker/u16:3+flush-8:012:00:295
2332343992523,2cyclictest2559789-21kworker/u16:4+events_unbound09:05:154
2332353992420,2cyclictest2355941-21/usr/sbin/munin07:20:237
2332352992422,2cyclictest2283551-21kworker/u16:0+events_unbound09:30:226
2332343992422,2cyclictest890367-21kworker/u16:5+events_unbound07:11:034
2332343992422,2cyclictest2472460-21kworker/u16:3+flush-8:008:35:134
2332343992422,2cyclictest2283551-21kworker/u16:0+flush-8:008:50:184
2332343992321,2cyclictest2283551-21kworker/u16:0+events_unbound07:31:034
2332353992217,4cyclictest645-21systemd-journal08:49:477
233235399220,20cyclictest645-21systemd-journal10:19:537
2332348992220,2cyclictest3014471-21kworker/u16:1+flush-8:012:35:365
2332343992220,2cyclictest2472460-21kworker/u16:3+events_unbound09:02:034
2332343992220,2cyclictest2462170-21kworker/u16:2+events_unbound08:25:154
2332353992118,2cyclictest2578775-21smartctl09:10:247
2332348992119,2cyclictest2415095-21kworker/u16:3+flush-8:008:05:195
2332343992119,2cyclictest2419132-21kworker/u16:4+events_unbound07:53:594
2332343992119,2cyclictest2419132-21kworker/u16:4+events_unbound07:53:594
2332353991918,0cyclictest0-21swapper/711:05:237
2332353991914,4cyclictest3014432-21latency_hist12:09:527
2332353991914,4cyclictest3014432-21latency_hist12:09:527
2332348991917,2cyclictest2754983-21kworker/u16:3+flush-8:011:29:525
2332348991917,2cyclictest2754983-21kworker/u16:3+flush-8:011:29:525
2332353991815,2cyclictest2433493-21sed07:59:537
2332353991815,1cyclictest2717874-21munin-run10:09:527
2332353991815,1cyclictest2717874-21munin-run10:09:527
2332353991812,4cyclictest2549181-21/usr/sbin/munin08:55:227
233235399180,16cyclictest3029619-21kthreadcore12:15:107
2332353991714,2cyclictest2423690-21munin-run07:54:527
2332353991714,2cyclictest2423690-21munin-run07:54:527
2332353991712,4cyclictest3026723-21latency_hist12:14:527
2332348991715,2cyclictest1634630-21kworker/u16:4+flush-8:007:20:195
2332343991614,2cyclictest2312779-21kworker/u16:1+events_unbound08:17:364
2332353991513,1cyclictest2814363-21ssh10:45:447
2332353991513,1cyclictest0-21swapper/710:37:047
2332353991510,4cyclictest2804406-21latency_hist10:44:527
233234899150,1cyclictest0-21swapper/510:39:125
233234899150,15cyclictest0-21swapper/510:21:135
2332343991513,2cyclictest2312779-21kworker/u16:1+flush-8:008:05:174
2332353991413,0cyclictest0-21swapper/709:48:307
2332353991411,2cyclictest0-21swapper/710:00:117
2332353991411,2cyclictest0-21swapper/710:00:117
233235399140,13cyclictest905-21dbus-daemon08:39:527
2332352991413,1cyclictest0-21swapper/612:31:516
2332352991413,1cyclictest0-21swapper/612:10:256
2332352991413,1cyclictest0-21swapper/611:56:236
2332352991413,1cyclictest0-21swapper/610:53:106
2332352991413,1cyclictest0-21swapper/610:08:536
2332352991413,1cyclictest0-21swapper/610:08:536
233235299140,1cyclictest0-21swapper/611:03:246
233235299140,1cyclictest0-21swapper/609:10:506
233235299140,14cyclictest0-21swapper/609:42:326
2332348991413,1cyclictest0-21swapper/511:36:075
2332348991413,1cyclictest0-21swapper/510:58:075
2332348991413,1cyclictest0-21swapper/510:33:125
2332348991413,1cyclictest0-21swapper/509:42:075
233234899140,1cyclictest0-21swapper/510:07:595
233234899140,1cyclictest0-21swapper/510:07:595
233234899140,1cyclictest0-21swapper/510:00:155
233234899140,1cyclictest0-21swapper/510:00:155
233234899140,1cyclictest0-21swapper/509:56:385
233234899140,1cyclictest0-21swapper/509:05:045
233234899140,14cyclictest0-21swapper/510:15:145
233234899140,14cyclictest0-21swapper/509:31:435
233235399139,3cyclictest1274-21snmpd11:56:167
233235399139,3cyclictest1274-21snmpd09:54:587
233235399139,3cyclictest1274-21snmpd09:42:287
233235399139,3cyclictest1274-21snmpd08:18:057
233235399137,5cyclictest2720697-21kthreadcore10:10:107
233235399137,5cyclictest1124-21lldpd10:58:307
233235399135,7cyclictest6050-21gmain11:20:107
2332353991312,0cyclictest0-21swapper/711:25:477
2332353991312,0cyclictest0-21swapper/711:25:477
2332353991311,1cyclictest3050460-21ssh12:23:207
233235399130,3cyclictest2938056-21sh11:36:047
233235399130,3cyclictest2777308-21sh10:30:447
233235399130,11cyclictest2953970-21cat11:45:087
233235399130,11cyclictest2395680-21cat07:40:087
2332352991312,1cyclictest0-21swapper/611:11:176
2332352991312,1cyclictest0-21swapper/607:45:136
233235299130,13cyclictest0-21swapper/611:20:076
233235299130,13cyclictest0-21swapper/610:19:546
233235299130,13cyclictest0-21swapper/610:02:056
233235299130,13cyclictest0-21swapper/610:02:056
233235299130,13cyclictest0-21swapper/609:54:216
233235299130,0cyclictest0-21swapper/611:29:256
233235299130,0cyclictest0-21swapper/611:29:256
2332348991312,1cyclictest0-21swapper/512:05:265
2332348991312,1cyclictest0-21swapper/512:05:265
2332348991312,1cyclictest0-21swapper/511:44:005
2332348991312,1cyclictest0-21swapper/511:22:145
2332348991312,1cyclictest0-21swapper/508:30:045
2332348991312,1cyclictest0-21swapper/508:10:035
2332348991312,1cyclictest0-21swapper/507:54:075
2332348991312,1cyclictest0-21swapper/507:54:075
2332348991312,1cyclictest0-21swapper/507:35:225
233234899130,1cyclictest0-21swapper/509:45:455
233235399129,2cyclictest0-21swapper/707:15:067
233235399128,3cyclictest6398-21gmain11:33:187
233235399128,3cyclictest1274-21snmpd12:01:227
233235399128,3cyclictest1274-21snmpd09:21:287
233235399128,3cyclictest1274-21snmpd09:21:287
233235399127,4cyclictest3077384-21cat12:35:097
233235399127,4cyclictest2444316-21cat08:05:087
2332353991210,1cyclictest0-21swapper/711:00:267
233235399120,2cyclictest2741109-21ssh10:17:197
233235399120,2cyclictest2408865-21kthreadcore07:45:147
233235399120,11cyclictest2941543-21cat11:40:097
233235399120,11cyclictest1274-21snmpd07:31:197
2332352991211,1cyclictest0-21swapper/610:11:326
2332352991211,1cyclictest0-21swapper/609:57:596
233235299120,1cyclictest0-21swapper/612:28:186
233234899129,2cyclictest2594159-21kworker/u16:1+flush-8:010:49:575
2332348991211,1cyclictest2283551-21kworker/u16:0+events_unbound08:55:155
2332348991211,1cyclictest0-21swapper/510:44:435
2332348991211,1cyclictest0-21swapper/509:21:475
2332348991211,1cyclictest0-21swapper/509:21:475
233235399119,1cyclictest0-21swapper/708:40:247
233235399119,1cyclictest0-21swapper/708:10:087
233235399118,2cyclictest1274-21snmpd07:28:227
233235399118,2cyclictest0-21swapper/712:30:207
233235399117,3cyclictest5997-21gmain09:00:067
233235399117,3cyclictest1274-21snmpd11:52:137
233235399117,3cyclictest1274-21snmpd09:38:077
233235399117,3cyclictest1274-21snmpd08:31:297
233235399117,3cyclictest1274-21snmpd08:26:207
233235399110,2cyclictest3052225-21cstates12:25:057
233235399110,2cyclictest2867812-21cut11:10:097
233235399110,1cyclictest0-21swapper/710:52:317
233235299111,8cyclictest0-21swapper/610:55:236
2332352991110,1cyclictest0-21swapper/612:23:026
2332352991110,1cyclictest0-21swapper/610:45:176
2332352991110,1cyclictest0-21swapper/610:39:456
2332352991110,1cyclictest0-21swapper/609:24:246
2332352991110,1cyclictest0-21swapper/609:24:246
2332352991110,1cyclictest0-21swapper/608:57:356
2332352991110,1cyclictest0-21swapper/608:53:306
2332352991110,1cyclictest0-21swapper/608:12:586
2332352991110,1cyclictest0-21swapper/607:19:226
233234899119,2cyclictest2977409-21kworker/u16:3+flush-8:011:55:335
233234899119,2cyclictest2870788-21kworker/u16:0+flush-8:011:15:035
2332348991110,1cyclictest991rcuop/707:40:125
2332348991110,1cyclictest0-21swapper/512:27:505
2332348991110,1cyclictest0-21swapper/511:54:435
2332348991110,1cyclictest0-21swapper/511:06:005
2332348991110,1cyclictest0-21swapper/508:49:375
2332348991110,1cyclictest0-21swapper/508:42:135
233235399106,3cyclictest1274-21snmpd09:16:277
233235399104,5cyclictest6241-21gvfs-afc-volume07:10:147
233235399104,4cyclictest2879044-21cpu11:15:057
233235399104,4cyclictest2435572-21grep08:00:117
233235299109,1cyclictest0-21swapper/611:44:436
233235299109,1cyclictest0-21swapper/610:26:216
233235299109,1cyclictest0-21swapper/609:27:336
233235299109,1cyclictest0-21swapper/609:17:086
233235299109,1cyclictest0-21swapper/609:06:166
233235299109,1cyclictest0-21swapper/608:49:246
233235299107,2cyclictest2365395-21kworker/u16:2+flush-8:007:30:116
233235299101,9cyclictest0-21swapper/609:48:186
233235299100,10cyclictest0-21swapper/611:46:256
233234899109,1cyclictest0-21swapper/512:19:285
233234899109,1cyclictest0-21swapper/511:14:215
233234899109,1cyclictest0-21swapper/510:26:445
233234899109,1cyclictest0-21swapper/510:11:085
233234899109,1cyclictest0-21swapper/509:38:305
233234899109,1cyclictest0-21swapper/509:18:385
233234899109,1cyclictest0-21swapper/507:34:535
23323529998,1cyclictest0-21swapper/610:32:496
23323529998,1cyclictest0-21swapper/609:38:266
23323529998,1cyclictest0-21swapper/609:01:416
23323529997,2cyclictest86-21ksoftirqd/612:05:206
23323529997,2cyclictest86-21ksoftirqd/612:05:206
23323529997,2cyclictest86-21ksoftirqd/612:03:066
23323529997,2cyclictest86-21ksoftirqd/611:16:536
23323529994,4cyclictest2333361-21cat07:10:116
23323529990,3cyclictest2977435-21chrt11:54:536
23323489998,1cyclictest0-21swapper/509:12:195
23323489997,2cyclictest1634630-21kworker/u16:4+events_unbound07:10:125
23323529987,1cyclictest0-21swapper/608:39:096
23323529986,2cyclictest86-21ksoftirqd/612:39:296
23323529986,2cyclictest86-21ksoftirqd/611:31:556
23323529986,2cyclictest86-21ksoftirqd/610:16:206
23323529984,1cyclictest0-21swapper/612:15:076
23323529980,7cyclictest2793193-21chrt10:40:076
23323489987,1cyclictest0-21swapper/509:00:305
23323489986,1cyclictest0-21swapper/508:24:525
23323529975,2cyclictest86-21ksoftirqd/611:05:356
23323529974,1cyclictest681rcuog/407:20:066
23323529972,1cyclictest0-21swapper/607:58:456
23323529971,3cyclictest0-21swapper/608:30:116
23323529970,7cyclictest0-21swapper/608:05:236
23323529970,1cyclictest0-21swapper/608:00:196
23323489976,1cyclictest0-21swapper/510:49:465
23323489976,1cyclictest0-21swapper/509:52:325
23323489976,1cyclictest0-21swapper/507:19:265
23323489970,6cyclictest0-21swapper/509:29:525
23323489970,1cyclictest0-21swapper/508:26:035
2485022260,1sleep60-21swapper/608:25:136
23323529964,2cyclictest86-21ksoftirqd/608:20:106
23323529960,3cyclictest0-21swapper/608:40:076
23323529960,3cyclictest0-21swapper/607:50:156
23323529960,3cyclictest0-21swapper/607:50:156
23323529960,1cyclictest0-21swapper/608:15:106
23323529960,1cyclictest0-21swapper/607:40:106
23323529960,1cyclictest0-21swapper/607:35:156
23323489965,1cyclictest14350irq/27-ahci[0000:00:1f.2]12:30:115
23323489962,2cyclictest0-21swapper/507:56:235
23323489961,3cyclictest0-21swapper/511:45:155
23323489961,1cyclictest681rcuog/412:13:145
23323489960,5cyclictest0-21swapper/507:45:015
23323489960,3cyclictest0-21swapper/511:02:175
23323489960,2cyclictest0-21swapper/508:03:135
23323489960,1cyclictest0-21swapper/507:25:235
23323489952,1cyclictest0-21swapper/508:15:025
23323489951,1cyclictest991rcuop/708:35:145
23323489950,4cyclictest2530894-21taskset08:50:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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