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2026-06-25 - 15:06
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Thu Jun 25, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127271521030,2sleep30-21swapper/300:35:083
125641421010,3sleep30-21swapper/300:25:063
11753582990,2sleep30-21swapper/323:30:073
11948072750,1sleep01194805-21ssh23:44:110
8486962330,2sleep30-21swapper/319:35:063
10368832300,2sleep20-21swapper/221:55:152
820366992517,7cyclictest1160336-21kthreadcore23:20:050
820369992421,1cyclictest0-21swapper/222:25:012
820369992414,1cyclictest0-21swapper/220:30:012
820369992320,1cyclictest0-21swapper/222:35:012
820368992320,2cyclictest0-21swapper/119:10:021
820366992313,6cyclictest0-21swapper/000:30:020
820366992312,6cyclictest0-21swapper/019:35:020
820368992219,2cyclictest1076959-21cstates22:25:031
820366992219,2cyclictest1136375-21sh23:05:010
820366992215,6cyclictest973045-21kthreadcore21:15:100
820366992215,6cyclictest973045-21kthreadcore21:15:100
820366992214,7cyclictest0-21swapper/023:30:010
820366992211,6cyclictest0-21swapper/022:55:020
820366992211,6cyclictest0-21swapper/021:35:010
820369992119,1cyclictest0-21swapper/200:30:032
82036999211,6cyclictest0-21swapper/220:20:022
820369992116,3cyclictest0-21swapper/221:50:012
820369992112,1cyclictest0-21swapper/219:50:012
820369992112,1cyclictest0-21swapper/200:25:022
82036899215,9cyclictest36-21ksoftirqd/119:20:001
82036899214,6cyclictest963735-21diskmemload21:41:561
820368992118,2cyclictest1255211-21tr00:25:011
820368992115,2cyclictest67250irq/126-eno100:05:021
820368992114,3cyclictest965160-21ps21:10:071
820366992118,2cyclictest1225348-21cron00:05:010
820366992117,2cyclictest0-21swapper/019:15:010
820366992110,6cyclictest0-21swapper/021:40:090
82036699210,2cyclictest971208-21apt-config21:15:010
9859332200,1sleep30-21swapper/321:23:503
820369992012,1cyclictest0-21swapper/219:55:012
820368992017,2cyclictest698-21in:imuxsock20:55:011
820368992017,2cyclictest1099368-21/usr/sbin/munin22:40:021
820368992017,2cyclictest1061723-21systemd-run22:15:021
820368992017,2cyclictest0-21swapper/123:00:131
820368992012,3cyclictest36-21ksoftirqd/120:40:011
82036699209,6cyclictest0-21swapper/022:25:090
82036699209,6cyclictest0-21swapper/021:10:010
82036699209,6cyclictest0-21swapper/000:05:400
820366992017,2cyclictest986733-21cpuspeed_turbos21:25:010
820366992017,2cyclictest1269722-21telnet00:35:000
820366992017,2cyclictest1255539-21df00:25:020
820366992017,2cyclictest1128406-21cat23:00:010
820366992012,7cyclictest0-21swapper/020:20:020
820366992010,5cyclictest0-21swapper/023:50:010
820369991917,1cyclictest0-21swapper/221:35:032
820369991917,1cyclictest0-21swapper/220:55:012
820369991917,1cyclictest0-21swapper/219:15:012
820369991917,1cyclictest0-21swapper/200:35:002
820369991916,1cyclictest0-21swapper/219:20:012
820368991916,2cyclictest939992-21cstates20:50:021
820368991916,2cyclictest878273-21aten_repower_po20:00:011
820368991915,2cyclictest1-21systemd21:10:021
820368991913,2cyclictest191rcu_preempt00:10:031
82036699199,5cyclictest0-21swapper/021:40:010
82036699197,5cyclictest0-21swapper/021:55:040
820366991916,2cyclictest660-21dbus-daemon00:15:020
820366991916,2cyclictest1247551-21/usr/sbin/munin00:20:010
820366991916,2cyclictest1151081-21grep23:15:020
820366991916,2cyclictest1069041-21latency_hist22:20:010
3153791190,2phc2sys0-21swapper/321:49:413
820369991816,1cyclictest0-21swapper/221:40:012
820369991816,1cyclictest0-21swapper/221:10:022
820369991815,1cyclictest0-21swapper/221:55:012
820369991815,1cyclictest0-21swapper/221:25:012
82036899182,9cyclictest1106084-21apt-get22:44:591
820368991815,2cyclictest987101-21sh21:25:021
820368991815,2cyclictest835934-21cstates19:25:011
820368991815,2cyclictest1150561-21idleruntime-cro23:15:001
820368991814,3cyclictest860131-21cpu19:45:011
820368991813,1cyclictest36-21ksoftirqd/120:00:081
820368991813,1cyclictest191rcu_preempt20:10:021
820368991812,2cyclictest1209880-21/usr/sbin/munin23:55:091
820368991811,1cyclictest826327-21kworker/1:1+events_freezable19:15:021
820368991810,3cyclictest36-21ksoftirqd/123:50:011
820368991810,3cyclictest36-21ksoftirqd/123:25:011
82036699187,6cyclictest0-21swapper/022:40:030
82036699181,7cyclictest1-21systemd20:30:020
820366991815,2cyclictest660-21dbus-daemon20:45:020
820366991815,2cyclictest1054333-21aten_repower_vo22:10:020
820366991815,2cyclictest0-21swapper/023:10:010
820366991815,2cyclictest0-21swapper/021:05:020
82036699180,2cyclictest1217507-1atop00:00:010
3153791180,3phc2sys0-21swapper/300:12:123
820369991715,1cyclictest0-21swapper/223:40:012
820369991715,1cyclictest0-21swapper/200:20:012
820369991715,1cyclictest0-21swapper/200:15:042
820369991714,1cyclictest0-21swapper/223:20:062
820369991714,1cyclictest0-21swapper/222:50:122
820369991714,1cyclictest0-21swapper/222:01:512
820369991714,1cyclictest0-21swapper/220:05:032
820369991714,1cyclictest0-21swapper/200:10:022
82036899179,3cyclictest36-21ksoftirqd/100:40:011
82036899179,3cyclictest1187945-21kworker/u16:1+xprtiod00:28:211
82036899173,1cyclictest191rcu_preempt00:30:071
820368991714,2cyclictest903511-21gltestperf20:20:051
820368991714,2cyclictest765-1atopacctd20:20:031
820368991714,2cyclictest1077120-21cstates22:25:031
820368991712,1cyclictest492398rtkit-daemon23:27:561
820368991711,3cyclictest1195375-21telnet23:45:011
820368991711,2cyclictest492398rtkit-daemon21:45:401
820368991711,1cyclictest1008843-21kworker/1:0+events_freezable22:19:251
820368991710,3cyclictest1245049-21latency00:15:111
82036699175,4cyclictest927431-21head20:40:010
820366991715,1cyclictest0-21swapper/022:35:010
820366991715,1cyclictest0-21swapper/000:40:010
820366991714,2cyclictest841537-21latency_hist19:30:010
820366991714,2cyclictest765-1atopacctd23:15:080
82036699170,7cyclictest820928-21df19:10:020
492398170,2rtkit-daemon1179015-21ssh23:31:211
3153791179,3phc2sys0-21swapper/300:00:013
3153791170,4phc2sys0-21swapper/322:05:323
3153791170,2phc2sys0-21swapper/321:44:233
820369991614,1cyclictest0-21swapper/222:40:052
820369991614,1cyclictest0-21swapper/220:40:012
820369991614,1cyclictest0-21swapper/220:05:062
820369991614,1cyclictest0-21swapper/220:00:022
820369991614,1cyclictest0-21swapper/219:30:022
820369991614,1cyclictest0-21swapper/200:40:022
820369991613,2cyclictest0-21swapper/222:38:582
820369991613,1cyclictest0-21swapper/223:10:112
820369991613,1cyclictest0-21swapper/221:30:012
820369991613,1cyclictest0-21swapper/221:15:392
820369991613,1cyclictest0-21swapper/221:15:392
820369991613,1cyclictest0-21swapper/220:50:022
820369991612,2cyclictest0-21swapper/223:57:392
82036899163,5cyclictest36-21ksoftirqd/120:30:091
82036899162,5cyclictest951944-21munin-run21:00:011
82036899161,7cyclictest1046554-21latency_hist22:05:011
82036899161,4cyclictest3545234-1atop20:30:021
820368991613,2cyclictest896435-21unin-run20:15:011
820368991613,2cyclictest866028-21head19:50:011
820368991613,2cyclictest1246-21mta-sts-daemon21:25:111
820368991613,2cyclictest1118771-21head22:50:121
820368991613,2cyclictest1047938-21kthreadcore22:05:061
820368991613,2cyclictest0-21swapper/120:45:011
820368991613,2cyclictest0-21swapper/119:55:021
820368991613,2cyclictest0-21swapper/100:15:021
820368991612,3cyclictest972445-21tail21:15:061
820368991612,3cyclictest972445-21tail21:15:061
82036899160,11cyclictest1209589-21ssh23:54:041
82036699169,6cyclictest0-21swapper/021:50:120
82036699167,7cyclictest869790-21tr19:50:080
82036699167,4cyclictest0-21swapper/023:35:010
820366991613,2cyclictest991761-21mailstats21:25:120
820366991613,2cyclictest947049-21kthreadcore20:55:040
820366991613,2cyclictest946027-21sh20:55:010
820366991613,2cyclictest921657-21cstates20:35:020
820366991613,2cyclictest860315-21cstates19:45:020
820366991613,2cyclictest848816-21irqcore19:35:070
820366991613,2cyclictest836232-21sh19:25:020
820366991613,2cyclictest1040505-21kthreadcore22:00:070
820366991613,2cyclictest0-21swapper/020:00:020
820366991610,5cyclictest1100509-21kthreadcore22:40:060
3153791164,2phc2sys0-21swapper/322:04:193
3153791160,2phc2sys0-21swapper/321:15:123
3153791160,2phc2sys0-21swapper/321:15:123
820369991513,1cyclictest0-21swapper/223:25:132
820369991513,1cyclictest0-21swapper/223:20:022
820369991513,1cyclictest0-21swapper/220:15:022
820369991513,1cyclictest0-21swapper/219:10:012
820369991512,1cyclictest0-21swapper/223:05:162
820369991512,1cyclictest0-21swapper/223:05:012
820369991512,1cyclictest0-21swapper/222:56:172
820369991512,1cyclictest0-21swapper/222:27:582
82036899159,1cyclictest501rcuop/219:34:321
820368991513,1cyclictest1-21systemd23:40:021
820368991512,2cyclictest849237-21tr19:35:091
820368991512,2cyclictest67250irq/126-eno123:17:341
820368991512,2cyclictest1028869-21missed_timers21:50:101
820368991511,3cyclictest1047189-21kworker/u16:0+nfsiod22:47:111
820368991511,1cyclictest872182-21kworker/1:2+events_freezable21:04:031
82036899150,3cyclictest0-21swapper/121:57:131
82036699159,5cyclictest1242-21mta-sts-daemon23:54:330
82036699157,4cyclictest1247-21mta-sts-daemon22:48:520
820366991512,2cyclictest891877-21kthreadcore20:10:070
820366991512,2cyclictest765-1atopacctd20:05:110
820366991512,2cyclictest1-21systemd19:20:010
820366991512,2cyclictest1074027-21ssh22:20:100
3153791151,2phc2sys0-21swapper/323:14:563
3153791151,2phc2sys0-21swapper/322:44:043
3153791150,2phc2sys0-21swapper/320:53:323
82036999141,3cyclictest0-21swapper/219:40:022
820369991412,1cyclictest0-21swapper/223:50:072
820369991412,1cyclictest0-21swapper/223:50:022
820369991412,1cyclictest0-21swapper/222:50:032
820369991412,1cyclictest0-21swapper/221:40:042
820369991412,1cyclictest0-21swapper/221:00:002
820369991412,1cyclictest0-21swapper/219:35:022
820369991411,1cyclictest0-21swapper/223:44:432
820369991411,1cyclictest0-21swapper/222:15:092
820369991411,1cyclictest0-21swapper/200:00:382
82036899148,5cyclictest1237-21mta-sts-daemon19:25:231
820368991412,1cyclictest491rcuog/222:30:201
820368991412,1cyclictest1247-21mta-sts-daemon22:56:131
820368991411,2cyclictest1247-21mta-sts-daemon21:37:241
820368991410,3cyclictest997846-21kthreadcore21:30:081
820368991410,3cyclictest1091851-21kworker/u16:2+nfsiod23:08:431
820366991411,2cyclictest903432-21fschecks_time20:20:040
820366991411,2cyclictest879074-21gltestperf20:00:040
820366991411,2cyclictest866000-21aten_repower_en19:50:010
820366991411,2cyclictest1242-21mta-sts-daemon22:12:490
820366991411,2cyclictest1024014-21sh21:50:010
820366991410,3cyclictest1242-21mta-sts-daemon23:35:150
3153791140,4phc2sys0-21swapper/323:25:323
3153791140,3phc2sys0-21swapper/322:35:103
82036999139,2cyclictest0-21swapper/221:14:162
820369991311,1cyclictest0-21swapper/222:05:032
820369991311,1cyclictest0-21swapper/221:00:072
820369991311,1cyclictest0-21swapper/220:30:112
820369991311,1cyclictest0-21swapper/220:25:002
820369991311,1cyclictest0-21swapper/219:20:122
820369991310,1cyclictest0-21swapper/222:10:102
82036999130,6cyclictest0-21swapper/223:35:002
820366991311,1cyclictest938298-21missed_timers20:45:100
3153791134,2phc2sys0-21swapper/321:53:093
3153791134,2phc2sys0-21swapper/320:30:053
3153791130,2phc2sys0-21swapper/323:44:393
3153791130,2phc2sys0-21swapper/323:35:373
3153791130,2phc2sys0-21swapper/322:51:033
3153791130,2phc2sys0-21swapper/300:20:553
3153791130,2phc2sys0-21swapper/300:01:353
3153791130,1phc2sys0-21swapper/323:49:563
3153791130,1phc2sys0-21swapper/300:08:513
820369991210,1cyclictest0-21swapper/220:40:082
3153791121,2phc2sys0-21swapper/321:10:003
3153791120,6phc2sys0-21swapper/322:29:593
3153791120,3phc2sys0-21swapper/320:10:013
3153791120,3phc2sys0-21swapper/300:16:223
3153791120,2phc2sys0-21swapper/322:21:273
3153791120,2phc2sys0-21swapper/321:39:573
3153791120,2phc2sys0-21swapper/320:55:163
3153791120,2phc2sys0-21swapper/320:18:313
3153791120,2phc2sys0-21swapper/319:29:543
3153791120,2phc2sys0-21swapper/319:07:573
3153791120,1phc2sys0-21swapper/320:04:163
82036999119,1cyclictest0-21swapper/219:40:072
3153791112,2phc2sys0-21swapper/300:31:373
3153791111,4phc2sys0-21swapper/323:09:593
3153791111,3phc2sys0-21swapper/322:58:143
3153791111,3phc2sys0-21swapper/321:35:013
3153791110,6phc2sys0-21swapper/320:15:013
3153791110,3phc2sys0-21swapper/323:19:343
3153791110,2phc2sys0-21swapper/322:18:503
3153791110,2phc2sys0-21swapper/321:55:103
3153791110,2phc2sys0-21swapper/321:25:313
3153791110,2phc2sys0-21swapper/320:00:003
3153791110,2phc2sys0-21swapper/319:15:003
3153791101,3phc2sys0-21swapper/323:25:023
3153791101,2phc2sys0-21swapper/320:35:023
3153791101,2phc2sys0-21swapper/319:45:093
3153791100,2phc2sys0-21swapper/323:01:593
3153791100,2phc2sys0-21swapper/322:30:493
3153791100,2phc2sys0-21swapper/322:10:093
3153791100,2phc2sys0-21swapper/321:15:013
3153791100,2phc2sys0-21swapper/319:40:123
3153791100,1phc2sys0-21swapper/321:02:103
3153791100,1phc2sys0-21swapper/320:41:393
315379192,1phc2sys0-21swapper/320:47:003
315379191,1phc2sys0-21swapper/319:34:033
315379191,1phc2sys0-21swapper/319:18:283
315379190,2phc2sys0-21swapper/323:50:163
315379190,2phc2sys0-21swapper/322:45:033
315379190,2phc2sys0-21swapper/320:25:043
315379190,2phc2sys0-21swapper/320:20:073
315379190,2phc2sys0-21swapper/319:50:103
315379190,2phc2sys0-21swapper/319:20:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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