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2026-01-12 - 08:26
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Mon Jan 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27492952760,1sleep10-21swapper/119:48:041
31144382300,1sleep10-21swapper/123:38:041
270035899290,3cyclictest3156056-21munin-run00:00:000
2700359992819,2cyclictest134050irq/121-eno123:45:011
2700358992315,7cyclictest0-21swapper/023:40:010
2700358992314,5cyclictest2874066-21threads21:23:110
32181942220,2sleep20-21swapper/200:33:322
2700358992214,4cyclictest3006866-21kthreadcore22:38:070
2700358992211,6cyclictest0-21swapper/023:20:010
2700359992118,2cyclictest2875588-21perf21:25:001
2700358992118,2cyclictest3138062-21sh23:50:020
2700358992110,7cyclictest2905980-21awk21:43:030
2700359992017,2cyclictest3219257-21latency_hist00:35:011
2700359992017,2cyclictest257-21systemd-journal00:20:021
2700359992017,2cyclictest0-21swapper/120:45:011
2700358992017,2cyclictest1326-21systemd-logind23:55:010
2700358992017,2cyclictest0-21swapper/022:00:000
2700358992011,5cyclictest3000236-21unixbench_multi22:33:120
2649091200,2phc2sys0-21swapper/322:48:143
2902298190,3rtkit-daemon4114978-21snmpd23:19:261
2700359991916,2cyclictest3019507-21apt-key22:45:001
2700359991916,2cyclictest3010517-21sh22:40:001
2700359991916,2cyclictest2700356-21cyclictest23:00:001
2700359991916,2cyclictest1326-21systemd-logind19:20:011
270035899199,6cyclictest2758880-21kthreadcore19:58:040
270035899199,5cyclictest2879531-21kthreadcore21:28:030
270035899199,4cyclictest0-21swapper/023:15:020
270035899197,7cyclictest2972999-21tr22:18:100
2700358991916,2cyclictest3165019-21cron00:05:000
2700358991916,2cyclictest3165019-21cron00:05:000
2700358991916,2cyclictest2706647-21pmu-power19:15:010
2700358991915,2cyclictest2799575-21perf20:30:000
2700358991913,2cyclictest134050irq/121-eno100:28:060
2700358991912,6cyclictest3198400-21kthreadcore00:23:050
2649191190,1ptp4l0-21swapper/300:13:013
2700360991815,1cyclictest0-21swapper/220:30:002
270035999183,1cyclictest17350irq/127-ahci[0000:00:17.0]00:00:001
2700359991815,2cyclictest2938732-21ssh22:00:001
2700359991815,2cyclictest2848666-21gpgconf21:10:001
2700359991815,2cyclictest2700356-21cyclictest21:03:001
2700359991815,2cyclictest1326-21systemd-logind23:50:011
2700359991814,3cyclictest2790530-21kthreadcore20:23:041
2700359991814,3cyclictest1327-21in:imuxsock20:31:591
270035899189,8cyclictest0-21swapper/000:20:010
270035899189,5cyclictest3055956-21munin-run23:05:010
270035899188,5cyclictest0-21swapper/023:23:000
270035899188,4cyclictest191rcu_preempt21:49:140
270035899187,4cyclictest501rcuop/221:03:000
270035899182,11cyclictest2859908-21aten2.4-expect21:17:580
2700358991815,2cyclictest3128397-21grep23:45:000
2700358991814,3cyclictest0-21swapper/000:15:000
2700358991812,4cyclictest0-21swapper/020:25:000
2700358991812,2cyclictest134050irq/121-eno100:35:020
2700358991811,3cyclictest2720894-21kworker/u16:2+nfsiod21:11:070
2700360991714,1cyclictest0-21swapper/220:45:002
2700359991714,2cyclictest2775179-21latency_hist20:10:001
2700359991714,2cyclictest2765407-21kthreadcore20:03:051
2700359991713,3cyclictest1296-21polkitd21:55:011
2700359991713,3cyclictest1290-21dbus-daemon19:15:011
2700359991712,3cyclictest2882603-21kthreadcore21:28:051
270035899175,7cyclictest2893901-21munin-run21:35:010
270035899173,12cyclictest2897637-21cat21:38:040
2700358991714,2cyclictest2817687-21cron20:45:000
2700358991714,2cyclictest2769195-21latency_hist20:05:010
2700358991714,2cyclictest0-21swapper/021:10:000
2700358991713,2cyclictest0-21swapper/022:45:010
2700358991712,4cyclictest2831275-21gltestperf20:58:020
2700358991712,1cyclictest0-21swapper/000:37:530
270035899171,10cyclictest3041166-21irqcore22:58:010
2700358991710,6cyclictest0-21swapper/022:03:040
2700358991710,3cyclictest2925791-21kthreadcore21:53:030
270035899170,8cyclictest2978733-21cut22:23:040
2649091170,3phc2sys0-21swapper/300:34:113
2649091170,2phc2sys0-21swapper/323:01:043
2649091170,2phc2sys0-21swapper/322:27:213
2649091170,2phc2sys0-21swapper/322:24:393
2649091170,2phc2sys0-21swapper/322:14:523
2649091170,2phc2sys0-21swapper/321:36:453
2649091170,2phc2sys0-21swapper/300:26:063
2700360991614,1cyclictest0-21swapper/220:05:012
2700360991613,1cyclictest0-21swapper/222:45:012
2700360991613,1cyclictest0-21swapper/221:43:102
2700360991613,1cyclictest0-21swapper/200:26:192
270036099160,14cyclictest0-21swapper/223:06:222
270035999169,2cyclictest2688406-21kworker/u16:1+xprtiod21:31:281
270035999168,3cyclictest2968845-21if_err_enp1s022:18:041
2700359991613,2cyclictest351ktimers/121:48:051
2700359991613,2cyclictest3203304-21/usr/sbin/munin00:28:061
2700359991613,2cyclictest3095332-21grep23:28:041
2700359991613,2cyclictest191rcu_preempt23:22:461
2700359991613,2cyclictest0-21swapper/123:35:001
2700359991613,2cyclictest0-21swapper/123:10:011
2700359991612,3cyclictest3170092-21kthreadcore00:08:051
2700359991612,3cyclictest2809632-21kthreadcore20:38:071
2700359991611,3cyclictest3067629-21fschecks_count23:12:591
270035899167,5cyclictest1996-21runrttasks23:05:490
270035899164,8cyclictest3030980-21/usr/sbin/munin22:53:000
270035899164,5cyclictest0-21swapper/022:28:030
270035899161,9cyclictest2732087-21needreboot19:33:060
2700358991613,2cyclictest3170985-21kthreadcore00:08:050
2700358991613,2cyclictest1326-21systemd-logind19:55:010
2700358991613,2cyclictest0-21swapper/022:15:020
2700358991612,3cyclictest2818801-21cpuspeed_turbos20:47:580
2700358991612,3cyclictest2807256-21irqrtprio20:38:050
2700358991612,3cyclictest2772425-21kthreadcore20:08:070
2700358991612,3cyclictest1327-21in:imuxsock23:30:310
270035899160,15cyclictest0-21swapper/020:53:040
2649091167,2phc2sys0-21swapper/322:38:083
2649091160,2phc2sys0-21swapper/323:53:093
2649091160,2phc2sys0-21swapper/321:52:243
2649091160,2phc2sys0-21swapper/300:01:523
2649091160,2phc2sys0-21swapper/300:01:523
2649091160,1phc2sys0-21swapper/323:31:303
2649091160,1phc2sys0-21swapper/321:34:033
2700360991513,1cyclictest0-21swapper/223:45:012
2700360991513,1cyclictest0-21swapper/200:40:012
2700360991512,1cyclictest0-21swapper/221:10:282
270035999159,1cyclictest601rcuop/322:53:341
270035999158,6cyclictest1296-21polkitd19:45:001
270035999158,1cyclictest191rcu_preempt00:10:371
270035999157,2cyclictest2992658-21kworker/1:0+events_freezable23:04:361
270035999156,1cyclictest134050irq/121-eno121:10:371
270035999151,8cyclictest2849175-21kworker/u16:0+xprtiod22:34:411
2700359991513,1cyclictest2799776-21latency_hist20:30:011
2700359991512,2cyclictest3194996-21fschecks_time00:23:011
2700359991512,2cyclictest2905000-21/usr/sbin/munin21:43:081
2700359991512,2cyclictest2901052-21proc_pri21:38:081
2700359991512,2cyclictest2824723-21cpu20:52:591
2700359991512,2cyclictest2733096-21systemd19:35:021
2700359991512,2cyclictest2584489-21gmain19:27:581
2700359991511,3cyclictest2783707-21kthreadcore20:18:041
2700359991511,3cyclictest2753641-21kthreadcore19:53:051
2700359991510,1cyclictest191rcu_preempt23:51:001
2700359991510,1cyclictest134050irq/121-eno122:05:011
270035899159,5cyclictest2848406-21diskmemload23:28:170
270035899159,1cyclictest2782470-21hddtemp_smartct20:18:010
270035899158,2cyclictest191rcu_preempt19:28:040
270035899158,2cyclictest0-21swapper/019:47:570
270035899157,4cyclictest2775837-21aten2.4-expect20:13:000
2700358991512,2cyclictest2714238-21mailstats19:18:210
2700358991512,2cyclictest1288-1atopacctd22:07:160
2700358991511,3cyclictest3024878-21kthreadcore22:48:070
2700358991511,3cyclictest2740803-21kthreadcore19:43:030
2700358991511,3cyclictest2718062-21kthreadcore19:23:060
2649091150,2phc2sys0-21swapper/323:45:013
2649091150,2phc2sys0-21swapper/321:29:383
2649091150,2phc2sys0-21swapper/320:52:583
2700360991412,1cyclictest0-21swapper/223:49:452
2700360991412,1cyclictest0-21swapper/200:03:062
2700360991412,1cyclictest0-21swapper/200:03:062
2700360991412,1cyclictest0-21swapper/200:00:022
2700360991411,1cyclictest0-21swapper/223:51:232
2700360991411,1cyclictest0-21swapper/223:22:592
2700360991411,1cyclictest0-21swapper/223:11:462
2700360991411,1cyclictest0-21swapper/221:58:022
2700360991411,1cyclictest0-21swapper/221:40:022
2700360991411,1cyclictest0-21swapper/220:22:582
2700360991411,1cyclictest0-21swapper/200:18:002
270035999149,1cyclictest134050irq/121-eno122:46:481
270035999143,3cyclictest0-21swapper/100:37:021
2700359991412,1cyclictest2621139-21kworker/u16:0-events_unbound19:22:591
2700359991411,2cyclictest3159590-21kthreadcore00:03:051
2700359991411,2cyclictest3159590-21kthreadcore00:03:051
2700359991411,2cyclictest2861206-21irqrtprio21:18:051
2700359991411,2cyclictest2818765-21cpuspeed_turbos20:47:581
2700359991411,2cyclictest2700356-21cyclictest22:20:181
2700359991410,3cyclictest2988383-21kthreadcore22:28:061
270035999140,4cyclictest2948870-21chrt22:06:191
2700358991410,2cyclictest2736648-21kthreadcore19:38:060
2649091141,3phc2sys0-21swapper/322:02:583
2649091140,2phc2sys0-21swapper/323:45:363
2649091140,2phc2sys0-21swapper/323:15:513
2649091140,1phc2sys0-21swapper/322:44:533
28578962139,2sleep20-21swapper/221:15:072
270036099139,2cyclictest0-21swapper/221:48:092
270036099139,2cyclictest0-21swapper/220:13:032
270036099139,2cyclictest0-21swapper/200:12:582
270036099131,5cyclictest0-21swapper/219:40:022
2700360991311,1cyclictest0-21swapper/219:15:022
2700360991310,1cyclictest0-21swapper/223:40:012
2700360991310,1cyclictest0-21swapper/223:33:062
2700360991310,1cyclictest0-21swapper/223:03:042
2700360991310,1cyclictest0-21swapper/221:53:072
2700360991310,1cyclictest0-21swapper/221:33:052
2700360991310,1cyclictest0-21swapper/221:21:202
2700360991310,1cyclictest0-21swapper/220:53:032
2700360991310,1cyclictest0-21swapper/219:43:042
2700360991310,1cyclictest0-21swapper/200:08:042
270036099130,8cyclictest0-21swapper/221:10:002
270036099130,11cyclictest0-21swapper/222:35:392
270035999138,4cyclictest1-21systemd19:59:021
270035999134,3cyclictest501rcuop/219:35:161
270035999133,4cyclictest134050irq/121-eno122:14:311
270035999132,3cyclictest2775776-21head20:13:001
2700359991310,2cyclictest2831887-21kthreadcore20:58:061
270035899139,2cyclictest2803777-21kthreadcore20:33:050
2700358991310,2cyclictest0-21swapper/019:10:010
2649091134,2phc2sys0-21swapper/322:05:223
2649091130,2phc2sys0-21swapper/323:55:563
2649091130,2phc2sys0-21swapper/323:36:033
2649091130,2phc2sys0-21swapper/320:06:233
2649091130,2phc2sys0-21swapper/300:24:453
2649091130,1phc2sys0-21swapper/300:05:573
270036099129,1cyclictest0-21swapper/222:13:012
270036099129,1cyclictest0-21swapper/221:28:032
270036099129,1cyclictest0-21swapper/221:03:042
270036099129,1cyclictest0-21swapper/220:58:052
270036099129,1cyclictest0-21swapper/220:18:012
270036099129,1cyclictest0-21swapper/219:58:042
270036099129,1cyclictest0-21swapper/200:23:032
270036099124,5cyclictest2966030-21chrt22:15:092
2700360991210,1cyclictest0-21swapper/222:28:062
2700360991210,1cyclictest0-21swapper/219:28:052
270036099120,9cyclictest0-21swapper/222:47:592
270036099120,8cyclictest0-21swapper/222:22:572
2649091120,3phc2sys0-21swapper/319:10:013
2649091120,2phc2sys0-21swapper/320:29:313
2649091120,2phc2sys0-21swapper/319:32:573
2649091120,2phc2sys0-21swapper/319:16:463
2649091120,1phc2sys0-21swapper/321:07:183
2649091120,1phc2sys0-21swapper/320:46:183
270036099119,1cyclictest0-21swapper/223:17:582
270036099119,1cyclictest0-21swapper/222:52:072
270036099119,1cyclictest0-21swapper/220:33:052
270036099119,1cyclictest0-21swapper/220:05:132
270036099119,1cyclictest0-21swapper/219:18:172
270036099118,1cyclictest0-21swapper/222:01:412
270036099118,1cyclictest0-21swapper/220:45:092
270036099118,1cyclictest0-21swapper/220:38:312
270036099117,2cyclictest0-21swapper/219:45:302
270036099111,8cyclictest2732870-21taskset19:34:592
270036099111,7cyclictest3092194-21taskset23:25:032
270036099111,7cyclictest27513592sleep219:50:382
270036099111,7cyclictest0-21swapper/222:06:282
2649091112,2phc2sys0-21swapper/300:38:043
2649091111,3phc2sys0-21swapper/323:27:583
2649091111,3phc2sys0-21swapper/323:08:223
2649091111,3phc2sys0-21swapper/322:59:043
2649091111,2phc2sys0-21swapper/319:48:043
2649091110,3phc2sys0-21swapper/323:11:543
2649091110,2phc2sys0-21swapper/321:47:073
2649091110,2phc2sys0-21swapper/321:22:343
2649091110,2phc2sys0-21swapper/319:43:033
2649091110,1phc2sys0-21swapper/320:57:203
270036099108,1cyclictest0-21swapper/222:31:282
270036099108,1cyclictest0-21swapper/219:24:152
270036099107,1cyclictest0-21swapper/222:55:242
270035999107,2cyclictest2700363-21true19:10:011
2649091101,3phc2sys0-21swapper/319:12:163
2649091101,2phc2sys0-21swapper/321:19:493
2649091100,3phc2sys0-21swapper/319:37:583
2649091100,2phc2sys0-21swapper/323:22:173
2649091100,2phc2sys0-21swapper/322:51:113
2649091100,2phc2sys0-21swapper/322:30:113
2649091100,2phc2sys0-21swapper/321:55:123
2649091100,2phc2sys0-21swapper/321:43:503
2649091100,2phc2sys0-21swapper/321:10:113
2649091100,2phc2sys0-21swapper/320:23:023
2649091100,2phc2sys0-21swapper/320:19:343
2649091100,2phc2sys0-21swapper/320:03:393
2649091100,2phc2sys0-21swapper/319:56:213
2649091100,2phc2sys0-21swapper/319:53:053
264909191,4phc2sys0-21swapper/320:32:573
264909191,2phc2sys0-21swapper/320:43:063
264909191,2phc2sys0-21swapper/320:38:013
264909190,2phc2sys0-21swapper/322:15:043
264909190,2phc2sys0-21swapper/321:02:573
264909190,2phc2sys0-21swapper/320:10:043
264909190,2phc2sys0-21swapper/319:28:043
264909190,2phc2sys0-21swapper/300:15:123
264909181,2phc2sys0-21swapper/319:20:433
2694614250,2sleep20-21swapper/219:06:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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