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2026-08-05 - 16:50
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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 all highest latencies:
System rack0slot2.osadl.org (updated Wed Aug 05, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35637042940,0sleep60-21swapper/611:33:556
36210142930,1sleep40-21swapper/411:58:544
325454126352,7sleep40-21swapper/407:03:404
325487725544,7sleep50-21swapper/507:08:305
325469925419,30sleep70-21swapper/707:06:007
3255168995047,2cyclictest3579378-21kworker/u16:2+events_unbound12:33:464
3255168994643,2cyclictest3329157-21kworker/u16:0+events_unbound10:38:354
3255182994540,3cyclictest3273695-21cut08:48:327
3255168994443,1cyclictest3259966-21kworker/u16:1+events_unbound09:53:464
3255182994339,3cyclictest3619668-21ssh11:58:497
3255173994139,2cyclictest3579378-21kworker/u16:2+events_unbound12:34:075
3255168994139,2cyclictest3398816-21kworker/u16:2+events_unbound10:48:494
3255168994139,2cyclictest3398816-21kworker/u16:2+events_unbound10:48:494
3255168994139,2cyclictest3329157-21kworker/u16:0+events_unbound10:08:594
3255168994139,2cyclictest3329157-21kworker/u16:0+events_unbound10:08:594
3255168994139,1cyclictest3292023-21kworker/u16:4+events_unbound12:14:054
325518299400,38cyclictest3274328-21pluginstate08:53:327
3255173994038,2cyclictest3292023-21kworker/u16:4+flush-8:012:19:035
3255173994037,3cyclictest3292023-21kworker/u16:4+flush-8:012:13:505
3255168994038,2cyclictest3259966-21kworker/u16:1+events_unbound10:19:054
3255182993933,5cyclictest648-21systemd-journal08:23:327
3255168993937,2cyclictest3292023-21kworker/u16:4+events_unbound12:24:074
3255168993937,2cyclictest3292023-21kworker/u16:4+events_unbound12:20:134
3255168993937,2cyclictest3292023-21kworker/u16:4+events_unbound11:03:464
3255173993836,2cyclictest3292023-21kworker/u16:4+events_unbound10:28:475
3255168993836,2cyclictest3579378-21kworker/u16:2+flush-8:012:09:034
3255168993836,2cyclictest3579378-21kworker/u16:2+flush-8:012:09:034
3255168993835,2cyclictest3329157-21kworker/u16:0+flush-8:010:43:584
3255173993735,2cyclictest3579378-21kworker/u16:2+events_unbound11:44:055
3255173993735,2cyclictest3398816-21kworker/u16:2+events_unbound10:49:065
3255173993735,2cyclictest3398816-21kworker/u16:2+events_unbound10:49:065
3255173993735,2cyclictest3269089-21kworker/u16:3+events_unbound09:54:585
3255173993733,4cyclictest3579378-21kworker/u16:2+flush-8:012:33:325
3255168993735,2cyclictest3292023-21kworker/u16:4+events_unbound11:38:454
3255168993734,2cyclictest3292023-21kworker/u16:4+events_unbound11:43:464
3255182993630,5cyclictest3271395-21latency_hist08:33:337
3255173993634,2cyclictest3594511-21kworker/u16:0+events_unbound12:03:555
3255173993634,2cyclictest3579378-21kworker/u16:2+events_unbound11:53:325
3255173993634,2cyclictest3292023-21kworker/u16:4+flush-8:011:04:065
3255168993634,2cyclictest3458321-21kworker/u16:1+events_unbound11:23:544
3255168993634,2cyclictest3276952-21kworker/u16:0+events_unbound09:13:194
3255168993633,2cyclictest3484152-21kworker/u16:3+events_unbound11:09:044
3255168993633,2cyclictest3329157-21kworker/u16:0+events_unbound10:58:574
3255168993633,2cyclictest3292023-21kworker/u16:4+events_unbound09:58:354
3255182993533,1cyclictest3642165-21ssh12:07:037
3255173993533,2cyclictest3458321-21kworker/u16:1+events_unbound11:33:465
3255168993532,2cyclictest3259966-21kworker/u16:1+events_unbound09:38:354
325467923524,7sleep60-21swapper/607:05:436
3255173993432,2cyclictest3329157-21kworker/u16:0+events_unbound10:57:425
3255173993331,2cyclictest3269089-21kworker/u16:3+events_unbound08:18:325
3255173993331,2cyclictest3259966-21kworker/u16:1+events_unbound10:15:595
3255168993331,2cyclictest3276952-21kworker/u16:0+events_unbound09:14:064
3255168993331,2cyclictest3259966-21kworker/u16:1+events_unbound10:07:414
3255168993330,3cyclictest3579378-21kworker/u16:2+events_unbound11:55:234
3255168993229,2cyclictest3329157-21kworker/u16:0+events_unbound10:28:354
3255173993129,2cyclictest3594511-21kworker/u16:0+events_unbound11:55:435
3255173993129,2cyclictest3532939-21kworker/u16:0+events_unbound11:24:055
3255173993129,2cyclictest3292023-21kworker/u16:4+flush-8:010:24:315
3255173993128,2cyclictest3329157-21kworker/u16:0+events_unbound10:11:105
3255173993128,2cyclictest3329157-21kworker/u16:0+events_unbound10:11:105
3255168993129,2cyclictest3579378-21kworker/u16:2+events_unbound12:32:104
3255168993129,2cyclictest3484152-21kworker/u16:3+events_unbound11:20:214
3255177993028,2cyclictest3329157-21kworker/u16:0+flush-8:010:58:326
3255173993028,2cyclictest3292023-21kworker/u16:4+flush-8:011:14:105
3255168993028,2cyclictest3594511-21kworker/u16:0+events_unbound12:07:094
325518299290,27cyclictest3375744-21smartctl10:18:477
3255168992927,2cyclictest3458321-21kworker/u16:1+events_unbound11:34:014
3255168992927,2cyclictest3292023-21kworker/u16:4+events_unbound11:29:184
3255168992927,2cyclictest3292023-21kworker/u16:4+events_unbound11:29:184
3255168992927,2cyclictest3292023-21kworker/u16:4+events_unbound10:17:194
3255168992927,2cyclictest3292023-21kworker/u16:4+events_unbound09:52:184
3255168992927,2cyclictest3269089-21kworker/u16:3+events_unbound09:26:424
3255182992825,2cyclictest3261780-21perf07:28:327
3255182992823,4cyclictest3255721-21latency_hist07:13:327
3255182992822,5cyclictest3655209-21latency_hist12:13:327
3255182992822,5cyclictest3655209-21latency_hist12:13:327
3255173992826,2cyclictest3532939-21kworker/u16:0+events_unbound11:38:495
3255173992826,2cyclictest3292023-21kworker/u16:4+flush-8:010:35:425
3255173992826,2cyclictest3292023-21kworker/u16:4+events_unbound11:59:435
3255173992825,3cyclictest3292023-21kworker/u16:4+flush-8:012:23:545
3255173992825,2cyclictest3458321-21kworker/u16:1+flush-8:011:18:425
3255168992826,2cyclictest3292023-21kworker/u16:4+events_unbound10:33:384
3255168992826,2cyclictest3269089-21kworker/u16:3+flush-8:009:30:104
3255168992826,2cyclictest3269089-21kworker/u16:3+flush-8:009:30:104
3255182992722,4cyclictest3508504-21latency_hist11:13:327
3255173992725,2cyclictest3458321-21kworker/u16:1+events_unbound11:30:345
3255173992725,2cyclictest3458321-21kworker/u16:1+events_unbound11:30:345
3255173992725,2cyclictest3458321-21kworker/u16:1+events_unbound11:02:145
3255173992725,2cyclictest3329157-21kworker/u16:0+events_unbound09:59:185
3255173992724,2cyclictest3594511-21kworker/u16:0+events_unbound12:08:495
3255173992724,2cyclictest3594511-21kworker/u16:0+events_unbound12:08:495
3255173992722,2cyclictest3398816-21kworker/u16:2+flush-8:010:48:315
3255168992725,2cyclictest3292023-21kworker/u16:4+events_unbound11:49:004
3255168992725,2cyclictest3292023-21kworker/u16:4+events_unbound09:48:224
3255173992624,2cyclictest3329157-21kworker/u16:0+events_unbound10:07:195
3255173992624,2cyclictest3276952-21kworker/u16:0+events_unbound09:22:485
3255173992624,2cyclictest3269089-21kworker/u16:3+events_unbound09:49:425
3255173992623,2cyclictest3276952-21kworker/u16:0+events_unbound09:13:505
3255168992624,2cyclictest3269089-21kworker/u16:3+events_unbound09:34:514
3255168992623,2cyclictest3292023-21kworker/u16:4+flush-8:010:23:454
33346492250,1chrt3334651-21ssh09:58:597
3255182992524,0cyclictest0-21swapper/711:56:447
3255173992522,2cyclictest3292023-21kworker/u16:4+events_unbound09:43:425
3255173992522,2cyclictest3269089-21kworker/u16:3+events_unbound09:28:105
36447882240,1chrt0-21swapper/612:08:496
36447882240,1chrt0-21swapper/612:08:496
3255182992419,4cyclictest3569503-21latency_hist11:38:327
3255177992420,3cyclictest3259966-21kworker/u16:1+flush-8:010:13:326
3255177992420,3cyclictest3259966-21kworker/u16:1+flush-8:010:13:326
3255173992422,2cyclictest3329157-21kworker/u16:0+events_unbound10:39:425
3255168992422,2cyclictest3292023-21kworker/u16:4+flush-8:011:15:384
3255168992422,2cyclictest3259966-21kworker/u16:1+events_unbound09:23:194
3255168992421,2cyclictest3254882-21kworker/u16:0+events_unbound07:18:344
3255168992421,2cyclictest3254882-21kworker/u16:0+events_unbound07:18:344
3255173992321,2cyclictest3458321-21kworker/u16:1+events_unbound11:13:305
3255173992321,2cyclictest3269089-21kworker/u16:3+events_unbound09:30:035
3255173992321,2cyclictest3269089-21kworker/u16:3+events_unbound09:30:035
3255173992321,2cyclictest3259966-21kworker/u16:1+events_unbound09:42:055
3255173992321,2cyclictest3259966-21kworker/u16:1+events_unbound09:36:425
3255168992321,2cyclictest3329157-21kworker/u16:0+events_unbound10:56:054
3255182992218,3cyclictest3701371-21grep12:29:067
3255177992218,3cyclictest3292023-21kworker/u16:4+flush-8:010:18:326
3255182992120,0cyclictest0-21swapper/710:53:467
325518299210,19cyclictest3338813-21ls10:03:467
3255173992119,2cyclictest3259966-21kworker/u16:1+events_unbound10:20:505
3255173992118,2cyclictest3259966-21kworker/u16:1+flush-8:007:34:035
3255168992118,2cyclictest3253448-21kworker/u16:2+events_unbound07:13:334
325518299200,18cyclictest3596468-21cut11:48:497
3255177992016,3cyclictest3292023-21kworker/u16:4+flush-8:011:48:326
3255173992018,2cyclictest3259966-21kworker/u16:1+events_unbound09:10:195
3255168992016,3cyclictest3269115-21PK-Backend08:17:384
3255182991913,5cyclictest3496297-21latency_hist11:08:327
3255182991813,4cyclictest3362325-21latency_hist10:13:327
3255182991813,4cyclictest3362325-21latency_hist10:13:327
3255173991815,2cyclictest3269090-21kworker/u16:5+flush-8:008:23:435
3255173991815,2cyclictest3269089-21kworker/u16:3+events_unbound08:48:345
3255168991815,2cyclictest3269090-21kworker/u16:5+flush-8:008:43:424
3255168991815,2cyclictest3254882-21kworker/u16:0+events_unbound07:43:434
3255168991815,2cyclictest3254882-21kworker/u16:0+events_unbound07:23:354
3255182991716,0cyclictest0-21swapper/712:23:467
325518299170,15cyclictest3269197-21latency_hist08:18:327
325518299170,15cyclictest3263970-21latency_hist07:43:337
3255168991715,2cyclictest3259966-21kworker/u16:1+events_unbound07:35:424
3255168991714,2cyclictest3269089-21kworker/u16:3+flush-8:008:58:424
3255168991714,2cyclictest3254882-21kworker/u16:0+events_unbound07:28:344
35430362160,0sleep73543037-21sh11:24:427
3255182991612,3cyclictest1302-21snmpd11:01:227
3255173991613,2cyclictest3259966-21kworker/u16:1+events_unbound07:49:445
3255173991613,2cyclictest3254882-21kworker/u16:0+events_unbound07:56:075
3255182991514,0cyclictest0-21swapper/711:29:477
3255182991514,0cyclictest0-21swapper/711:29:477
3255182991513,1cyclictest3277328-21ssh09:09:197
3255182991512,2cyclictest0-21swapper/711:41:527
3255182991511,3cyclictest0-21swapper/710:48:327
3255182991511,3cyclictest0-21swapper/710:48:327
325518299150,13cyclictest3420466-21sed10:34:067
3255177991513,2cyclictest3259966-21kworker/u16:1+flush-8:009:18:386
3255168991513,2cyclictest3269090-21kworker/u16:5+events_unbound08:22:424
3255168991512,2cyclictest3259966-21kworker/u16:1+events_unbound08:06:074
325518299149,4cyclictest3288899-21latency_hist09:28:327
325518299149,4cyclictest3270649-21cat08:28:277
325518299148,5cyclictest3260309-21latency_hist07:18:327
325518299140,12cyclictest3396661-21ssh10:24:357
3255177991412,2cyclictest3259966-21kworker/u16:1+flush-8:008:17:306
3255177991411,3cyclictest3329157-21kworker/u16:0+flush-8:010:34:096
325517799140,14cyclictest0-21swapper/609:29:146
325517799140,14cyclictest0-21swapper/609:29:146
3255173991411,2cyclictest3254882-21kworker/u16:0+flush-8:007:23:425
3255173991411,2cyclictest3253448-21kworker/u16:2+events_unbound07:28:425
325518299139,3cyclictest3363617-21cat10:13:487
325518299139,3cyclictest1302-21snmpd11:19:327
325518299139,3cyclictest1302-21snmpd10:44:227
325518299139,3cyclictest1302-21snmpd09:23:207
325518299138,4cyclictest3668652-21cat12:18:477
325518299130,11cyclictest3582909-21df_inode11:43:467
325518299130,11cyclictest3509844-21iostat_ios11:13:507
3255177991312,1cyclictest0-21swapper/612:05:296
3255177991312,1cyclictest0-21swapper/610:39:056
3255177991312,1cyclictest0-21swapper/610:18:356
3255177991311,2cyclictest3579378-21kworker/u16:2+events_unbound11:42:046
3255177991311,2cyclictest3259966-21kworker/u16:1+flush-8:009:13:336
325517799130,13cyclictest0-21swapper/611:11:056
325517799130,13cyclictest0-21swapper/610:44:456
325517799130,12cyclictest0-21swapper/608:43:126
325517799130,0cyclictest0-21swapper/612:36:326
325517799130,0cyclictest0-21swapper/609:56:126
3255173991311,2cyclictest3254882-21kworker/u16:0+flush-8:007:59:095
3255168991310,2cyclictest3254882-21kworker/u16:0+events_unbound08:02:424
325516899130,12cyclictest0-21swapper/408:12:354
325518299128,3cyclictest1302-21snmpd10:30:437
325518299128,3cyclictest1302-21snmpd09:45:217
325518299128,3cyclictest1302-21snmpd09:16:387
325518299128,3cyclictest1302-21snmpd07:20:117
325518299128,3cyclictest1302-21snmpd07:20:117
325518299127,4cyclictest1302-21snmpd12:16:457
325518299127,4cyclictest1302-21snmpd08:42:407
3255182991210,1cyclictest0-21swapper/709:48:447
325518299120,11cyclictest1302-21snmpd08:54:047
325518299120,11cyclictest1302-21snmpd07:32:297
325517799128,3cyclictest3254882-21kworker/u16:0+flush-8:007:18:326
3255177991211,1cyclictest0-21swapper/612:30:426
3255177991211,1cyclictest0-21swapper/611:55:426
3255177991211,1cyclictest0-21swapper/607:47:426
3255177991210,2cyclictest3398816-21kworker/u16:2+flush-8:010:49:156
3255177991210,2cyclictest3398816-21kworker/u16:2+flush-8:010:49:156
325517799120,1cyclictest0-21swapper/608:55:586
3255173991210,2cyclictest3269089-21kworker/u16:3+events_unbound08:58:345
325517399120,11cyclictest0-21swapper/507:11:165
3255168991211,1cyclictest0-21swapper/408:24:154
325516899120,11cyclictest0-21swapper/408:30:524
325518299118,2cyclictest1302-21snmpd09:41:057
325518299118,2cyclictest0-21swapper/712:33:467
325518299118,2cyclictest0-21swapper/707:43:337
325518299117,3cyclictest1302-21snmpd09:06:147
325518299115,5cyclictest6233-21gvfs-afc-volume09:33:157
325518299115,5cyclictest6233-21gvfs-afc-volume09:33:157
3255182991111,0cyclictest0-21swapper/707:36:087
325518299110,10cyclictest3293888-21ssh09:36:227
325518299110,10cyclictest1302-21snmpd09:58:277
325518299110,10cyclictest1302-21snmpd08:12:337
325518299110,10cyclictest1302-21snmpd08:02:457
3255177991110,1cyclictest0-21swapper/612:03:266
3255177991110,1cyclictest0-21swapper/611:52:056
3255177991110,1cyclictest0-21swapper/611:32:506
3255177991110,1cyclictest0-21swapper/611:32:506
3255177991110,1cyclictest0-21swapper/610:02:496
3255177991110,1cyclictest0-21swapper/608:49:496
325517799110,1cyclictest0-21swapper/608:32:286
325517799110,11cyclictest0-21swapper/609:07:106
325517799110,11cyclictest0-21swapper/607:52:166
325517399119,2cyclictest3259966-21kworker/u16:1+events_unbound09:03:425
325517399118,3cyclictest3254882-21kworker/u16:0+flush-8:007:48:335
3255173991110,1cyclictest0-21swapper/508:40:315
3255168991110,1cyclictest0-21swapper/408:42:044
3255168991110,1cyclictest0-21swapper/408:35:274
3255168991110,1cyclictest0-21swapper/407:43:064
325516899110,11cyclictest0-21swapper/407:56:214
325518299107,2cyclictest1302-21snmpd09:02:287
325518299107,2cyclictest1302-21snmpd08:05:097
325518299107,2cyclictest1302-21snmpd07:58:277
325518299106,3cyclictest5861-21gmain10:39:177
325518299106,3cyclictest1302-21snmpd07:50:117
325517799109,1cyclictest0-21swapper/612:19:216
325517799109,1cyclictest0-21swapper/612:17:186
325517799109,1cyclictest0-21swapper/611:15:116
325517799109,1cyclictest0-21swapper/610:31:216
325517799109,1cyclictest0-21swapper/610:05:366
325517799109,1cyclictest0-21swapper/609:45:286
325517799109,1cyclictest0-21swapper/608:19:426
325517799109,1cyclictest0-21swapper/607:38:246
325517799104,5cyclictest6059-21gdbus10:26:066
325517799100,0cyclictest0-21swapper/607:32:436
325516899109,1cyclictest0-21swapper/409:06:594
32551829995,3cyclictest1302-21snmpd08:34:407
32551779998,1cyclictest0-21swapper/610:59:446
32551779998,1cyclictest0-21swapper/609:00:326
32551779998,1cyclictest0-21swapper/607:40:276
32551779998,1cyclictest0-21swapper/607:19:476
32551779998,1cyclictest0-21swapper/607:19:476
32551779998,1cyclictest0-21swapper/607:12:046
32551779997,2cyclictest86-21ksoftirqd/612:25:516
32551779997,2cyclictest86-21ksoftirqd/609:35:036
32551779997,2cyclictest86-21ksoftirqd/609:16:526
32551739998,1cyclictest0-21swapper/508:34:225
32551739998,1cyclictest0-21swapper/508:06:185
32551739998,1cyclictest0-21swapper/507:19:005
32551739998,1cyclictest0-21swapper/507:19:005
32551739997,2cyclictest3259966-21kworker/u16:1+events_unbound08:56:425
32551779987,1cyclictest0-21swapper/609:50:036
32551779987,1cyclictest0-21swapper/607:25:286
32551779986,2cyclictest86-21ksoftirqd/611:27:456
32551779986,2cyclictest86-21ksoftirqd/611:20:326
32551779986,2cyclictest86-21ksoftirqd/611:04:536
32551779980,8cyclictest0-21swapper/609:24:386
32551739986,2cyclictest3262497-21kworker/u16:4+events_unbound08:08:385
32551739983,4cyclictest3257383-21grep07:13:365
32551779976,1cyclictest0-21swapper/608:37:036
32551779976,1cyclictest0-21swapper/608:08:316
32551779971,1cyclictest0-21swapper/609:39:036
32551739975,2cyclictest3259966-21kworker/u16:1+events_unbound08:29:425
32551739975,2cyclictest3254882-21kworker/u16:0+events_unbound07:42:285
32551689976,1cyclictest0-21swapper/407:51:464
32551689975,2cyclictest3269089-21kworker/u16:3+flush-8:008:53:274
32551779965,1cyclictest0-21swapper/608:43:406
32551779964,2cyclictest86-21ksoftirqd/608:24:076
32551779960,6cyclictest0-21swapper/608:12:016
32551779960,6cyclictest0-21swapper/607:55:126
32551779960,1cyclictest0-21swapper/607:59:306
32551739964,2cyclictest3269089-21kworker/u16:3+flush-8:008:44:525
32551739950,5cyclictest0-21swapper/508:19:015
32551689950,4cyclictest3274759-21taskset08:54:294
32551689950,4cyclictest3255390-21chrt07:08:534
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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