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2026-09-15 - 13:48
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Tue Sep 15, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204788225242,7sleep50-21swapper/507:09:375
2048198994643,2cyclictest2433514-21kworker/u16:4+events_unbound10:19:564
204765924434,7sleep40-21swapper/407:06:324
2048198994240,2cyclictest2350282-21kworker/u16:1+flush-8:009:49:554
2048198994240,2cyclictest2350282-21kworker/u16:1+flush-8:009:49:554
204776524232,7sleep60-21swapper/607:08:026
2048198994138,2cyclictest2704533-21kworker/u16:5+flush-8:012:00:114
2048198994138,2cyclictest2692358-21kworker/u16:0+flush-8:012:15:154
2048198994038,2cyclictest2692358-21kworker/u16:0+events_unbound12:04:594
20476062403,31sleep70-21swapper/707:05:467
2048198993937,2cyclictest2553355-21kworker/u16:2+flush-8:011:19:554
2048198993937,2cyclictest2369316-21kworker/u16:2+flush-8:010:05:004
2048198993735,2cyclictest2630770-21kworker/u16:4+flush-8:012:30:074
2048208993630,5cyclictest645-21systemd-journal10:09:407
2048198993634,2cyclictest2639587-21kworker/u16:6+events_unbound11:32:274
2048198993634,2cyclictest2408767-21kworker/u16:0+events_unbound10:12:054
2048198993533,2cyclictest2531859-21kworker/u16:0+events_unbound10:59:354
2048198993533,2cyclictest2394668-21kworker/u16:3+events_unbound10:40:124
2048198993533,2cyclictest2285317-21kworker/u16:3+events_unbound09:22:514
2048198993432,2cyclictest2729070-21kworker/u16:2+events_unbound12:39:234
2048198993432,2cyclictest2629604-21kworker/u16:3+events_unbound11:54:344
2048198993432,2cyclictest2433514-21kworker/u16:4+events_unbound11:10:004
2048198993432,2cyclictest2433514-21kworker/u16:4+events_unbound11:10:004
2048198993432,2cyclictest2369316-21kworker/u16:2+flush-8:009:40:324
2048198993432,2cyclictest2285317-21kworker/u16:3+flush-8:009:29:404
2048198993432,2cyclictest2081463-21kworker/u16:2+events_unbound09:15:094
2048198993431,2cyclictest2285941-21kworker/u16:4+events_unbound09:09:554
2048198993431,2cyclictest2246647-21kworker/u16:0+events_unbound09:44:444
2048198993331,2cyclictest2630770-21kworker/u16:4+events_unbound12:21:124
2048198993331,2cyclictest2553355-21kworker/u16:2+events_unbound11:03:514
2048198993331,2cyclictest2531859-21kworker/u16:0+events_unbound11:26:314
2048198993331,2cyclictest2369316-21kworker/u16:2+events_unbound10:30:084
2048198993331,2cyclictest2246647-21kworker/u16:0+flush-8:009:30:474
2048198993230,2cyclictest2553355-21kworker/u16:2+events_unbound11:16:004
2048198993230,2cyclictest2531859-21kworker/u16:0+events_unbound11:44:494
2048198993130,1cyclictest2350282-21kworker/u16:1+events_unbound09:37:284
2048198993129,2cyclictest2630770-21kworker/u16:4+events_unbound12:14:124
2048198993129,2cyclictest2433514-21kworker/u16:4+events_unbound10:47:164
2048202993028,2cyclictest2081463-21kworker/u16:2+events_unbound07:29:455
2048198993028,2cyclictest2553355-21kworker/u16:2+events_unbound11:08:284
2048198993028,2cyclictest2531859-21kworker/u16:0+flush-8:011:42:404
2048198993028,2cyclictest2394668-21kworker/u16:3+events_unbound10:19:354
26490522290,1chrt2649054-21cut11:35:037
2048208992921,6cyclictest645-21systemd-journal11:48:457
2048202992927,2cyclictest2692358-21kworker/u16:0+events_unbound12:02:525
2048202992927,2cyclictest2569246-21kworker/u16:1+events_unbound11:26:065
2048198992927,2cyclictest2630770-21kworker/u16:4+events_unbound11:58:284
2048198992927,2cyclictest2629604-21kworker/u16:3+flush-8:011:35:324
2048198992927,2cyclictest2433514-21kworker/u16:4+events_unbound10:53:334
2048198992927,2cyclictest2433514-21kworker/u16:4+events_unbound10:36:434
2048208992824,3cyclictest2071423-21awk07:19:417
2048202992826,2cyclictest2246647-21kworker/u16:0+events_unbound09:04:245
2048202992826,2cyclictest2221566-21kworker/u16:4+events_unbound08:45:565
2048202992826,2cyclictest2030783-21kworker/u16:0+flush-8:007:14:475
2048202992825,2cyclictest2260009-21kworker/u16:1+events_unbound09:09:415
2048198992826,2cyclictest2369316-21kworker/u16:2+events_unbound10:03:244
2048198992826,2cyclictest2369316-21kworker/u16:2+events_unbound09:57:244
2048198992825,2cyclictest2433514-21kworker/u16:4+events_unbound10:24:484
2048202992725,2cyclictest2639587-21kworker/u16:6+flush-8:011:30:275
2048202992725,2cyclictest2531859-21kworker/u16:0+events_unbound11:01:055
2048202992724,2cyclictest2246647-21kworker/u16:0+flush-8:009:39:415
2048198992725,2cyclictest2221566-21kworker/u16:4+flush-8:008:49:364
2048198992725,2cyclictest2081463-21kworker/u16:2+events_unbound09:07:014
2048198992725,2cyclictest2081463-21kworker/u16:2+events_unbound09:07:014
2048202992624,2cyclictest2778599-21kworker/u16:3+events_unbound12:31:145
2048202992624,2cyclictest2630770-21kworker/u16:4+events_unbound12:07:185
2048202992624,2cyclictest2394668-21kworker/u16:3+flush-8:010:05:235
2048202992624,2cyclictest2394668-21kworker/u16:3+events_unbound10:03:065
2048202992624,2cyclictest2110429-21kworker/u16:0+events_unbound07:53:325
2048202992624,2cyclictest2081463-21kworker/u16:2+events_unbound07:29:285
2048202992624,2cyclictest2047934-21kworker/u16:1+events_unbound08:32:165
2048202992523,2cyclictest2433514-21kworker/u16:4+events_unbound11:06:025
2048202992523,2cyclictest2369316-21kworker/u16:2+events_unbound10:30:435
2048202992523,2cyclictest2246647-21kworker/u16:0+events_unbound08:57:325
2048202992523,2cyclictest2246647-21kworker/u16:0+events_unbound08:51:485
2048202992523,2cyclictest2110429-21kworker/u16:0+events_unbound08:22:165
2048202992422,2cyclictest2369316-21kworker/u16:2+events_unbound10:38:215
2048198992422,2cyclictest2692358-21kworker/u16:0+events_unbound12:25:504
2048198992422,2cyclictest2047934-21kworker/u16:1+events_unbound08:14:544
2048208992317,5cyclictest2482615-21latency_hist10:29:407
2048202992321,2cyclictest2081463-21kworker/u16:2+events_unbound09:06:375
2048202992321,2cyclictest2081463-21kworker/u16:2+events_unbound09:06:375
2048198992320,2cyclictest2081463-21kworker/u16:2+events_unbound07:34:484
2048198992320,2cyclictest2081463-21kworker/u16:2+events_unbound07:34:484
2048208992217,4cyclictest2568856-21latency_hist11:04:407
2048202992220,2cyclictest2729070-21kworker/u16:2+flush-8:012:35:285
2048202992220,2cyclictest2630770-21kworker/u16:4+events_unbound12:25:265
2048202992220,2cyclictest2630770-21kworker/u16:4+events_unbound12:15:325
2048202992220,2cyclictest2630770-21kworker/u16:4+events_unbound11:37:355
2048202992220,2cyclictest2531859-21kworker/u16:0+flush-8:011:15:285
2048202992220,2cyclictest2433514-21kworker/u16:4+events_unbound11:09:525
2048202992220,2cyclictest2433514-21kworker/u16:4+events_unbound11:09:525
2048202992219,2cyclictest2667789-21kworker/u16:1+flush-8:011:49:465
2048202992219,2cyclictest2630770-21kworker/u16:4+flush-8:012:19:465
2048198992220,2cyclictest2246647-21kworker/u16:0+events_unbound09:02:514
2048198992220,2cyclictest2047934-21kworker/u16:1+flush-8:008:14:354
204820899210,19cyclictest2618045-21latency_hist11:24:407
2048202992119,2cyclictest2285317-21kworker/u16:3+events_unbound09:20:185
2048202992119,2cyclictest2246647-21kworker/u16:0+flush-8:009:30:145
2048202992119,2cyclictest2009583-21kworker/u16:3+events_unbound07:23:505
2048202992119,2cyclictest2009583-21kworker/u16:3+events_unbound07:12:285
2048198992119,2cyclictest2030783-21kworker/u16:0+flush-8:007:19:414
2048202992018,2cyclictest2394668-21kworker/u16:3+flush-8:010:10:185
2048202992018,2cyclictest2081463-21kworker/u16:2+events_unbound08:40:205
2048198992018,2cyclictest2110429-21kworker/u16:0+events_unbound07:51:134
2048198992018,2cyclictest2081463-21kworker/u16:2+events_unbound08:58:524
2048198992018,2cyclictest2047934-21kworker/u16:1+events_unbound08:28:174
2048198992018,2cyclictest2047934-21kworker/u16:1+events_unbound07:26:404
2048198992017,2cyclictest2047934-21kworker/u16:1+flush-8:008:20:014
2048208991918,0cyclictest0-21swapper/711:40:417
2048202991917,2cyclictest2394668-21kworker/u16:3+events_unbound09:55:505
2048202991917,2cyclictest2285317-21kworker/u16:3+flush-8:009:35:215
2048202991917,2cyclictest2081463-21kworker/u16:2+events_unbound07:55:295
2048198991917,2cyclictest2047934-21kworker/u16:1+flush-8:008:30:044
2048208991813,4cyclictest2359453-21latency_hist09:39:407
2048202991816,2cyclictest2150468-21kworker/u16:3+events_unbound08:02:225
2048202991816,2cyclictest2110429-21kworker/u16:0+flush-8:008:05:145
2048202991816,2cyclictest2047934-21kworker/u16:1+events_unbound08:11:545
2048202991715,2cyclictest2692358-21kworker/u16:0+flush-8:012:10:205
2048202991715,2cyclictest2207715-21kworker/u16:3+flush-8:008:39:365
2048202991715,2cyclictest2081463-21kworker/u16:2+events_unbound09:25:075
2048202991715,2cyclictest2081463-21kworker/u16:2+events_unbound07:39:345
2048202991715,2cyclictest2081463-21kworker/u16:2+events_unbound07:39:345
2048202991715,2cyclictest2047934-21kworker/u16:1+events_unbound08:26:475
2048202991715,2cyclictest2047934-21kworker/u16:1+events_unbound08:18:545
2048202991715,2cyclictest2047934-21kworker/u16:1+events_unbound07:41:035
2048198991715,2cyclictest2246647-21kworker/u16:0+events_unbound08:52:124
2048198991715,2cyclictest2047934-21kworker/u16:1+events_unbound08:03:574
25790262160,0sleep72579027-21sh11:05:547
25182112160,0sleep72518210-21ssh10:42:217
2048208991613,2cyclictest0-21swapper/707:29:437
204820899160,14cyclictest1059-21runrttasks09:15:317
204820399160,15cyclictest2101295-21cat07:34:546
204820399160,15cyclictest2101295-21cat07:34:546
2048202991614,2cyclictest2081463-21kworker/u16:2+events_unbound07:46:265
2048198991614,2cyclictest2207715-21kworker/u16:3+events_unbound08:36:454
2048198991613,2cyclictest2110429-21kworker/u16:0+flush-8:007:39:514
2048208991512,2cyclictest2405557-21rm09:55:107
2048208991511,3cyclictest1274-21snmpd10:21:137
2048208991511,3cyclictest1274-21snmpd08:49:027
204820899150,14cyclictest2753661-21turbostat12:19:407
204820899150,13cyclictest2322504-21ssh09:24:357
2048202991513,2cyclictest2569246-21kworker/u16:1+flush-8:011:20:325
2048202991513,2cyclictest2369316-21kworker/u16:2+flush-8:010:20:165
2048198991513,2cyclictest2047934-21kworker/u16:1+events_unbound07:58:524
204820899148,5cyclictest2217380-21latency_hist08:34:417
204820899147,6cyclictest6050-21gmain12:25:277
2048208991411,2cyclictest2553364-21dnf10:55:117
2048208991410,3cyclictest1274-21snmpd07:36:277
2048208991410,3cyclictest1274-21snmpd07:36:277
204820899140,1cyclictest0-21swapper/708:05:057
204820899140,12cyclictest2689012-21ntp_states11:50:127
204820899140,12cyclictest2274848-21ntp_states09:00:077
2048203991413,1cyclictest0-21swapper/610:25:116
2048202991412,2cyclictest2629604-21kworker/u16:3+events_unbound11:45:365
2048202991412,2cyclictest2433514-21kworker/u16:4+flush-8:010:54:565
2048202991412,2cyclictest2394668-21kworker/u16:3+events_unbound10:40:045
204820299140,1cyclictest0-21swapper/510:44:425
204820299140,14cyclictest0-21swapper/509:51:535
204820299140,14cyclictest0-21swapper/509:51:535
2048198991411,2cyclictest2047934-21kworker/u16:1+events_unbound07:09:454
204820899139,3cyclictest1274-21snmpd10:16:097
204820899139,3cyclictest1274-21snmpd09:05:597
204820899139,3cyclictest1274-21snmpd09:05:597
204820899139,3cyclictest1274-21snmpd08:13:227
204820899138,4cyclictest2360769-21cat09:39:567
204820899132,10cyclictest2782558-21grep12:30:037
2048208991311,1cyclictest0-21swapper/711:15:107
204820899130,3cyclictest2395191-21ssh09:52:337
204820899130,3cyclictest2395191-21ssh09:52:337
204820899130,2cyclictest1274-21snmpd11:56:127
204820899130,12cyclictest2715981-21ssh12:03:217
204820899130,11cyclictest2524486-21cut10:45:017
204820899130,11cyclictest2382754-21ssh09:47:167
204820899130,11cyclictest1274-21snmpd10:02:457
2048203991312,1cyclictest0-21swapper/612:20:166
2048203991312,1cyclictest0-21swapper/611:49:416
2048203991312,1cyclictest0-21swapper/610:44:536
2048203991312,1cyclictest0-21swapper/610:13:506
204820399130,1cyclictest0-21swapper/611:27:096
204820399130,13cyclictest0-21swapper/611:37:426
204820399130,13cyclictest0-21swapper/609:27:006
204820399130,0cyclictest0-21swapper/609:15:116
2048202991312,1cyclictest0-21swapper/511:41:085
2048202991312,1cyclictest0-21swapper/510:26:065
2048202991312,1cyclictest0-21swapper/510:16:385
204819899139,3cyclictest2160210-21cat08:04:564
2048198991311,2cyclictest2047934-21kworker/u16:1+events_unbound07:32:044
2048198991311,2cyclictest2009583-21kworker/u16:3+events_unbound07:23:144
204820899129,2cyclictest1274-21snmpd10:52:407
204820899129,2cyclictest1274-21snmpd08:41:237
204820899129,2cyclictest0-21swapper/712:19:557
204820899129,2cyclictest0-21swapper/711:14:407
204820899129,2cyclictest0-21swapper/711:14:407
204820899129,2cyclictest0-21swapper/709:10:087
204820899128,3cyclictest1274-21snmpd10:32:077
204820899128,3cyclictest1274-21snmpd08:38:287
204820899128,3cyclictest1274-21snmpd08:23:287
204820899128,3cyclictest1274-21snmpd07:46:007
204820899127,4cyclictest2434668-21cat10:09:557
204820899126,5cyclictest2207676-21latency_hist08:29:417
204820899125,6cyclictest6241-21gvfs-afc-volume10:35:097
2048208991210,1cyclictest2149327-21turbostat07:59:417
2048208991210,1cyclictest0-21swapper/711:29:557
204820899120,11cyclictest2740109-21ssh12:12:267
204820899120,11cyclictest2346117-21ssh09:32:517
204820899120,10cyclictest2618518-21ssh11:24:517
204820899120,10cyclictest1274-21snmpd07:20:597
2048203991211,1cyclictest0-21swapper/612:34:096
2048203991211,1cyclictest0-21swapper/612:11:276
2048203991211,1cyclictest0-21swapper/612:04:306
2048203991211,1cyclictest0-21swapper/609:42:276
2048203991211,1cyclictest0-21swapper/609:22:546
204820399120,12cyclictest0-21swapper/611:56:096
204820399120,12cyclictest0-21swapper/611:20:236
204820399120,12cyclictest0-21swapper/610:05:386
204820399120,12cyclictest0-21swapper/610:02:006
2048202991211,1cyclictest0-21swapper/510:51:575
2048202991211,1cyclictest0-21swapper/509:48:445
2048202991210,2cyclictest2246647-21kworker/u16:0+events_unbound09:15:395
204819899120,12cyclictest0-21swapper/407:48:414
204820899118,2cyclictest1274-21snmpd08:15:587
204820899118,2cyclictest1274-21snmpd07:10:447
204820899118,2cyclictest0-21swapper/708:54:557
204820899117,3cyclictest1274-21snmpd08:52:357
204820899115,5cyclictest2323857-21cat09:24:567
204820899114,6cyclictest5836-21gsd-power12:35:097
204820899110,2cyclictest1274-21snmpd07:24:567
204820899110,1cyclictest0-21swapper/707:40:007
204820399119,2cyclictest86-21ksoftirqd/608:10:026
204820399118,2cyclictest2110990-21cpuspeed_turbos07:39:536
2048203991110,1cyclictest0-21swapper/612:29:066
2048203991110,1cyclictest0-21swapper/611:32:116
2048203991110,1cyclictest0-21swapper/611:15:106
2048203991110,1cyclictest0-21swapper/610:39:516
2048203991110,1cyclictest0-21swapper/610:29:456
2048203991110,1cyclictest0-21swapper/610:17:276
2048203991110,1cyclictest0-21swapper/609:54:176
2048203991110,1cyclictest0-21swapper/609:54:176
2048203991110,1cyclictest0-21swapper/609:46:056
2048203991110,1cyclictest0-21swapper/609:06:596
2048203991110,1cyclictest0-21swapper/609:06:596
2048203991110,1cyclictest0-21swapper/608:40:586
2048203991110,1cyclictest0-21swapper/608:05:586
2048203991110,1cyclictest0-21swapper/607:59:306
204820399110,1cyclictest0-21swapper/608:33:436
204820399110,1cyclictest0-21swapper/608:18:166
204820399110,11cyclictest0-21swapper/608:37:206
204820399110,11cyclictest0-21swapper/608:21:536
204820399110,0cyclictest0-21swapper/607:50:126
204819899119,2cyclictest2081463-21kworker/u16:2+events_unbound08:40:484
204820899100,9cyclictest2726916-21ssh12:05:557
204820399109,1cyclictest0-21swapper/611:43:426
204820399109,1cyclictest0-21swapper/609:30:386
204820399109,1cyclictest0-21swapper/609:11:056
204820399109,1cyclictest0-21swapper/608:57:506
204820399109,1cyclictest0-21swapper/608:53:446
204820399100,3cyclictest2088734-21kthreadcore07:25:016
204820399100,2cyclictest0-21swapper/608:24:596
20482089995,3cyclictest1274-21snmpd07:54:157
20482089990,7cyclictest1117-21ntpd08:00:047
20482039998,1cyclictest0-21swapper/610:34:486
20482039998,1cyclictest0-21swapper/610:21:056
20482039998,1cyclictest0-21swapper/609:57:546
20482039994,4cyclictest2158106-21ntp_states08:00:066
20482039992,7cyclictest0-21swapper/607:18:206
20482039990,9cyclictest0-21swapper/610:54:356
20482039990,7cyclictest0-21swapper/609:39:306
20482039990,4cyclictest2801622-21chrt12:37:296
20482039986,2cyclictest86-21ksoftirqd/611:05:216
20482039986,2cyclictest86-21ksoftirqd/611:01:386
20482039986,1cyclictest2075160-21kthreadcore07:20:006
20482039985,2cyclictest2091242-21/usr/sbin/munin07:29:556
20482039984,3cyclictest5987-21gdbus11:48:336
20482039984,3cyclictest2049183-21cat07:09:576
20482039980,7cyclictest2726691-21chrt12:05:316
20482039980,7cyclictest2237284-21/usr/sbin/munin08:45:026
20482029986,2cyclictest2630770-21kworker/u16:4+events_unbound11:55:215
20482039974,2cyclictest2124421-21kthreadcore07:44:576
20482039971,6cyclictest0-21swapper/612:14:506
20482039971,6cyclictest0-21swapper/610:54:496
20482039970,7cyclictest0-21swapper/611:10:116
20482039970,7cyclictest0-21swapper/611:10:116
20482039970,1cyclictest0-21swapper/609:00:076
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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