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2026-04-10 - 09:01
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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 all highest latencies:
System rackeslot2.osadl.org (updated Fri Apr 10, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240788021130,2sleep30-21swapper/322:31:053
245507021020,2sleep12454955-21ssh23:01:051
25390972830,2sleep20-21swapper/223:56:092
22816802410,2sleep00-21swapper/021:06:040
213107299322,9cyclictest0-21swapper/223:30:012
2131072992516,7cyclictest0-21swapper/223:05:002
2131070992515,9cyclictest2307287-21latency_hist21:25:010
2131072992422,1cyclictest0-21swapper/200:35:012
213107299241,7cyclictest0-21swapper/221:00:012
2131072992415,1cyclictest0-21swapper/222:05:012
2131070992421,2cyclictest2131068-21cyclictest22:05:010
2131072992318,3cyclictest0-21swapper/223:00:002
2131072992315,1cyclictest0-21swapper/223:25:012
2131071992319,3cyclictest2390096-21ssh22:20:011
2131071992319,1cyclictest134050irq/121-eno100:35:011
2131071992317,4cyclictest1290-21dbus-daemon22:56:081
2131072992220,1cyclictest0-21swapper/222:15:012
2131072992219,1cyclictest0-21swapper/221:45:002
2131071992219,2cyclictest2507044-21kthreadcore23:36:051
2131070992219,2cyclictest2137583-21open_files19:15:010
213107299212,4cyclictest0-21swapper/219:20:012
2131072992117,3cyclictest0-21swapper/200:30:002
2131071992118,2cyclictest2435038-21cron22:50:001
2131071992116,2cyclictest134050irq/121-eno122:55:001
213107099213,8cyclictest2224832-21tr20:21:040
2131070992119,1cyclictest2405920-21tr22:30:590
2131070992113,6cyclictest0-21swapper/022:20:020
213107099210,6cyclictest2586404-21aten_repower_fr00:30:580
2131072992017,1cyclictest0-21swapper/223:16:002
2131072992015,2cyclictest0-21swapper/219:15:012
2131071992018,1cyclictest2137603-21fschecks_time19:15:011
2131071992014,1cyclictest601rcuop/323:18:141
2131071992014,1cyclictest601rcuop/322:09:281
2131071992012,3cyclictest0-21swapper/121:51:011
2131070992017,2cyclictest2555739-21sort00:10:010
2131070992017,2cyclictest2329683-21sendmail21:40:000
2131070992017,2cyclictest2299696-21perf21:20:000
2131070992017,2cyclictest2209138-21idleruntime-cro20:10:000
2131070992017,2cyclictest1290-21dbus-daemon23:40:000
2131070992012,6cyclictest2420760-21aten_repower_fr22:40:580
213107099200,8cyclictest2500937-21awk23:31:060
2649091191,4phc2sys0-21swapper/321:30:583
2649091190,2phc2sys0-21swapper/300:27:023
2131072991916,1cyclictest0-21swapper/223:50:002
2131072991916,1cyclictest0-21swapper/223:10:002
2131072991916,1cyclictest0-21swapper/219:30:002
213107199198,6cyclictest36-21ksoftirqd/123:35:001
213107199198,5cyclictest0-21swapper/121:55:591
2131071991916,2cyclictest1-21systemd00:10:021
2131071991916,2cyclictest0-21swapper/100:21:061
2131071991914,4cyclictest0-21swapper/100:00:001
2131071991913,1cyclictest501rcuop/222:33:571
213107099195,2cyclictest2597002-21kthreadcore00:36:030
2131070991916,2cyclictest2564393-21grep00:16:020
2131070991916,2cyclictest2247016-21cron20:40:000
2131070991916,2cyclictest2131068-21cyclictest20:30:010
2131070991912,6cyclictest191rcu_preempt21:25:590
2131070991912,5cyclictest2156472-21kthreadcore19:26:040
213107099190,4cyclictest2525779-21systemctl23:50:010
2131072991816,1cyclictest0-21swapper/222:30:022
2131072991815,1cyclictest0-21swapper/223:40:002
213107199189,2cyclictest3827634-1atopacctd21:26:061
2131071991815,2cyclictest2541791-21cstates00:00:591
2131071991815,2cyclictest2284923-21systemd-run21:10:021
2131071991815,2cyclictest0-21swapper/120:25:011
2131071991812,3cyclictest2297518-21kthreadcore21:16:081
213107199180,8cyclictest2465992-21ssh23:10:571
2131070991816,1cyclictest0-21swapper/019:40:010
213107099181,5cyclictest2337152-21cron21:45:000
2131070991811,6cyclictest2465953-21/usr/sbin/munin23:11:020
213107099181,15cyclictest2488477-21apt-get23:25:570
2649091170,2phc2sys0-21swapper/321:39:123
2649091170,2phc2sys0-21swapper/321:25:533
2649091170,2phc2sys0-21swapper/321:16:073
213107299177,5cyclictest0-21swapper/219:50:012
2131072991715,1cyclictest0-21swapper/200:01:032
2131072991714,1cyclictest0-21swapper/222:51:102
2131072991714,1cyclictest0-21swapper/221:40:002
2131072991713,1cyclictest0-21swapper/220:25:002
2131072991711,3cyclictest2306798-21taskset21:23:542
213107199179,3cyclictest0-21swapper/123:06:101
213107199179,2cyclictest2363895-21tr22:01:061
2131071991714,2cyclictest3827634-1atopacctd20:54:581
2131071991714,2cyclictest1996-21runrttasks22:37:501
213107199171,3cyclictest2526222-21apt-get23:50:581
2131071991713,3cyclictest0-21swapper/119:45:011
2131071991713,3cyclictest0-21swapper/119:45:011
2131071991712,3cyclictest0-21swapper/119:40:011
2131071991712,2cyclictest134050irq/121-eno121:12:461
2131071991711,1cyclictest134050irq/121-eno100:36:111
213107199170,11cyclictest2191689-21irqcore19:56:031
213107099179,5cyclictest2392691-21kthreadcore22:21:050
213107099178,1cyclictest601rcuop/322:29:130
213107099177,3cyclictest16-21ksoftirqd/020:51:070
213107099172,3cyclictest0-21swapper/021:58:310
2131070991714,2cyclictest3851704-21mta-sts-daemon23:56:090
2131070991714,2cyclictest2459050-21sort23:06:000
2131070991714,2cyclictest2455913-21missed_timers23:01:060
2131070991714,2cyclictest2382494-21systemd22:15:000
2131070991714,2cyclictest2259545-21idleruntime-cro20:50:000
2131070991714,2cyclictest2178946-21gltestperf19:46:020
2131070991714,2cyclictest2131068-21cyclictest21:30:410
2131070991710,6cyclictest191rcu_preempt23:42:560
2131070991710,5cyclictest1290-21dbus-daemon19:20:000
213107099170,6cyclictest2583735-21memory00:26:070
213107099170,6cyclictest2572454-21irqrtprio00:21:050
213107099170,5cyclictest3827634-1atopacctd20:05:000
2649091161,5phc2sys0-21swapper/319:20:573
2649091160,5phc2sys0-21swapper/300:00:573
2649091160,2phc2sys0-21swapper/323:39:243
2649091160,2phc2sys0-21swapper/323:09:333
2649091160,2phc2sys0-21swapper/322:12:093
2131072991614,1cyclictest0-21swapper/200:06:092
2131072991613,2cyclictest0-21swapper/222:06:482
2131072991613,1cyclictest0-21swapper/223:35:002
2131072991613,1cyclictest0-21swapper/221:56:072
2131072991613,1cyclictest0-21swapper/221:46:042
2131072991613,1cyclictest0-21swapper/220:35:002
2131072991613,1cyclictest0-21swapper/219:59:052
2131072991612,1cyclictest0-21swapper/219:45:002
2131072991612,1cyclictest0-21swapper/219:45:002
213107299160,9cyclictest0-21swapper/223:50:582
213107199169,3cyclictest2284654-21diskmemload21:20:321
213107199166,3cyclictest134050irq/121-eno123:22:101
213107199165,6cyclictest2258007-21kthreadcore20:46:061
213107199163,5cyclictest491rcuog/222:40:271
2131071991614,1cyclictest601rcuop/300:11:131
2131071991614,1cyclictest1996-21runrttasks22:21:391
2131071991613,2cyclictest2579657-21if_enp1s000:26:031
2131071991613,2cyclictest2516399-21cat23:41:111
2131071991613,2cyclictest2399184-21irqcore22:26:041
2131071991613,2cyclictest2338390-21grep21:46:021
2131071991613,2cyclictest2328114-21switchtime21:36:101
2131071991613,2cyclictest2240806-21idleruntime-cro20:35:001
2131071991611,4cyclictest0-21swapper/123:30:001
2131071991611,1cyclictest191rcu_preempt20:01:071
2131071991610,1cyclictest2495425-21kworker/1:0+events_freezable23:48:121
213107099169,5cyclictest2372628-21kthreadcore22:06:060
213107099169,3cyclictest191rcu_preempt22:55:120
213107099168,5cyclictest0-21swapper/000:11:030
213107099167,7cyclictest2238162-21tr20:31:050
213107099166,2cyclictest0-21swapper/019:31:050
213107099163,4cyclictest2435663-21kworker/u16:1+xprtiod23:23:510
213107099163,3cyclictest2428040-21runrttasks22:45:410
213107099161,8cyclictest2131079-21systemctl19:10:010
213107099161,5cyclictest2527161-21irqcore23:51:040
213107099161,5cyclictest2474857-21grep23:16:050
2131070991613,2cyclictest2546493-21rt-features00:01:090
2131070991613,2cyclictest171ktimers/019:45:010
2131070991613,2cyclictest171ktimers/019:45:010
2131070991611,2cyclictest191rcu_preempt21:46:000
2131070991610,4cyclictest2414450-21kthreadcore22:36:050
2131070991610,2cyclictest2221684-21kworker/u16:3+xprtiod21:13:480
2649091150,7phc2sys0-21swapper/300:05:573
2649091150,3phc2sys0-21swapper/300:21:083
2649091150,2phc2sys0-21swapper/323:56:003
2649091150,2phc2sys0-21swapper/323:34:303
2649091150,2phc2sys0-21swapper/321:14:563
24515112150,2sleep30-21swapper/323:00:593
213107299151,5cyclictest0-21swapper/223:40:582
2131072991512,1cyclictest0-21swapper/222:42:072
2131072991512,1cyclictest0-21swapper/221:26:122
2131072991512,1cyclictest0-21swapper/221:16:062
2131072991512,1cyclictest0-21swapper/219:51:032
2131072991512,1cyclictest0-21swapper/200:20:012
2131072991511,2cyclictest0-21swapper/222:45:432
2131072991511,2cyclictest0-21swapper/222:38:532
2131072991511,2cyclictest0-21swapper/220:27:072
213107199159,1cyclictest601rcuop/321:03:311
213107199159,1cyclictest601rcuop/320:35:451
213107199159,1cyclictest601rcuop/320:05:041
213107199159,1cyclictest601rcuop/319:51:331
213107199159,1cyclictest601rcuop/319:33:381
213107199159,1cyclictest601rcuop/319:18:551
213107199157,3cyclictest2196658-21kworker/1:1+events_freezable20:10:571
213107199152,5cyclictest2180182-21kthreadcore19:46:051
213107199152,4cyclictest134050irq/121-eno120:16:051
213107199151,4cyclictest0-21swapper/100:15:411
2131071991513,1cyclictest2247738-21cpuspeed_turbos20:40:581
2131071991512,2cyclictest2146927-21grep19:21:001
2131071991511,3cyclictest2267521-21kthreadcore20:56:051
213107099156,5cyclictest2137387-21kworker/0:3+events19:55:000
213107099154,3cyclictest16-21ksoftirqd/019:21:030
213107099153,2cyclictest16-21ksoftirqd/022:51:020
2131070991513,1cyclictest2277316-21latency21:01:060
2131070991512,2cyclictest3827634-1atopacctd20:15:590
2131070991512,2cyclictest2272083-21latency_hist21:00:010
2131070991511,2cyclictest191rcu_preempt20:41:040
2131070991510,1cyclictest491rcuog/220:14:550
2649091140,2phc2sys0-21swapper/322:26:103
2649091140,2phc2sys0-21swapper/322:24:453
2649091140,2phc2sys0-21swapper/322:18:453
2649091140,2phc2sys0-21swapper/321:23:423
2649091140,2phc2sys0-21swapper/320:09:333
213107299141,5cyclictest0-21swapper/221:30:582
2131072991412,1cyclictest0-21swapper/222:31:032
2131072991412,1cyclictest0-21swapper/222:16:112
2131072991412,1cyclictest0-21swapper/221:01:042
2131072991412,1cyclictest0-21swapper/220:45:152
2131072991411,2cyclictest0-21swapper/221:52:342
2131072991411,1cyclictest0-21swapper/221:14:382
2131072991411,1cyclictest0-21swapper/220:45:002
2131072991411,1cyclictest0-21swapper/220:40:002
2131072991411,1cyclictest0-21swapper/220:16:092
2131072991411,1cyclictest0-21swapper/220:11:082
2131072991411,1cyclictest0-21swapper/219:36:052
2131072991411,1cyclictest0-21swapper/219:31:012
2131072991411,1cyclictest0-21swapper/200:35:592
2131072991411,1cyclictest0-21swapper/200:20:482
2131072991410,2cyclictest0-21swapper/221:05:592
2131072991410,2cyclictest0-21swapper/200:10:582
213107199149,1cyclictest601rcuop/319:25:041
213107199143,7cyclictest36-21ksoftirqd/122:10:441
2131071991411,2cyclictest2329635-21cron21:40:021
2131071991410,3cyclictest2229755-21kthreadcore20:26:051
2131071991410,1cyclictest134050irq/121-eno121:32:261
213107099146,3cyclictest191rcu_preempt19:55:580
2131070991411,1cyclictest191rcu_preempt21:50:560
2649091130,3phc2sys0-21swapper/300:34:553
2649091130,2phc2sys0-21swapper/323:50:503
2649091130,2phc2sys0-21swapper/323:25:573
2649091130,2phc2sys0-21swapper/322:04:133
2649091130,2phc2sys0-21swapper/321:41:483
2649091130,2phc2sys0-21swapper/300:38:173
2649091130,1phc2sys0-21swapper/322:55:273
2131072991311,1cyclictest0-21swapper/219:10:012
2131072991310,1cyclictest0-21swapper/223:11:052
2131072991310,1cyclictest0-21swapper/222:20:342
2131072991310,1cyclictest0-21swapper/220:05:572
2131072991310,1cyclictest0-21swapper/220:00:582
2131072991310,1cyclictest0-21swapper/219:21:012
2649091121,5phc2sys0-21swapper/322:50:573
2649091120,2phc2sys0-21swapper/322:35:513
213107299129,1cyclictest0-21swapper/220:51:012
213107199129,2cyclictest1-21systemd19:10:011
2649091115,2phc2sys0-21swapper/323:20:593
2649091110,3phc2sys0-21swapper/319:41:593
2649091110,3phc2sys0-21swapper/319:41:593
2649091110,2phc2sys0-21swapper/300:10:593
2649091110,1phc2sys0-21swapper/321:04:283
2649091110,1phc2sys0-21swapper/320:27:253
2649091110,1phc2sys0-21swapper/319:57:313
2649091101,2phc2sys0-21swapper/319:11:033
2649091101,2phc2sys0-21swapper/319:06:023
2649091100,4phc2sys0-21swapper/320:55:573
2649091100,2phc2sys0-21swapper/323:45:133
2649091100,2phc2sys0-21swapper/323:44:413
2649091100,2phc2sys0-21swapper/323:13:153
2649091100,2phc2sys0-21swapper/322:50:023
2649091100,2phc2sys0-21swapper/321:57:033
2649091100,2phc2sys0-21swapper/321:45:293
2649091100,1phc2sys0-21swapper/320:54:023
2649091100,1phc2sys0-21swapper/320:37:433
2649091100,1phc2sys0-21swapper/320:10:063
264909191,3phc2sys0-21swapper/320:45:003
264909191,3phc2sys0-21swapper/300:15:583
264909191,2phc2sys0-21swapper/321:50:583
264909191,2phc2sys0-21swapper/320:30:583
264909191,2phc2sys0-21swapper/320:01:043
264909191,2phc2sys0-21swapper/319:15:283
264909190,2phc2sys0-21swapper/323:15:233
264909190,2phc2sys0-21swapper/322:40:163
264909190,2phc2sys0-21swapper/322:05:213
264909190,2phc2sys0-21swapper/321:05:563
264909190,2phc2sys0-21swapper/320:46:043
264909190,2phc2sys0-21swapper/320:21:003
264909190,2phc2sys0-21swapper/319:35:113
264909190,2phc2sys0-21swapper/319:32:313
264909190,2phc2sys0-21swapper/319:25:343
264909190,1phc2sys0-21swapper/320:18:393
264909180,2phc2sys0-21swapper/319:51:063
264909180,1phc2sys0-21swapper/319:45:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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