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2026-04-12 - 22:42
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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 Sun Apr 12, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290079421710,2sleep30-21swapper/309:15:563
295236221070,2sleep02952365-21latency_hist09:50:000
276846421030,2sleep30-21swapper/307:31:003
28150912840,2sleep30-21swapper/308:06:033
27525982490,2sleep30-21swapper/307:16:013
29167292470,1sleep10-21swapper/109:26:001
30499422440,2sleep30-21swapper/311:01:013
2738504992824,3cyclictest3117272-21grep11:50:011
2738504992522,2cyclictest1290-21dbus-daemon09:25:011
2738504992519,2cyclictest134050irq/121-eno112:05:001
2738502992518,2cyclictest0-21swapper/008:55:010
2738504992421,2cyclictest3104294-21sh11:40:561
2738502992417,2cyclictest0-21swapper/009:45:000
2738502992412,5cyclictest3824565-21in:imuxsock09:55:020
2738502992410,6cyclictest3827634-1atopacctd10:52:150
2738502992316,2cyclictest1326-21systemd-logind09:30:010
2738502992312,6cyclictest0-21swapper/012:15:010
2738504992219,2cyclictest2816158-21sh08:10:001
2738502992216,2cyclictest1-21systemd10:30:010
383433398210,5rtkit-daemon3851704-21mta-sts-daemon09:12:230
2738504992118,2cyclictest2973140-21idleruntime-cro10:05:001
2738504992118,2cyclictest2899966-21systemd09:15:011
2738504992114,3cyclictest2954437-21kthreadcore09:51:001
2738506992017,1cyclictest0-21swapper/212:30:012
2738506992017,1cyclictest0-21swapper/210:25:002
2738504992017,2cyclictest2992410-21systemd10:20:011
2738504992017,2cyclictest1996-21runrttasks11:57:571
2738506991916,1cyclictest0-21swapper/211:00:002
2738506991916,1cyclictest0-21swapper/210:55:002
2738506991916,1cyclictest0-21swapper/209:31:042
2738504991916,2cyclictest2979548-21dump-pmu-power10:10:001
2738504991916,2cyclictest2880964-21cut09:01:011
2738504991916,2cyclictest0-21swapper/107:10:021
2738504991915,3cyclictest3880722-21gmain11:05:021
2738502991912,2cyclictest3117687-21apt-get11:50:540
2738502991912,2cyclictest3110702-21/usr/sbin/munin11:45:570
383433398180,2rtkit-daemon0-21swapper/108:44:291
29979052180,2sleep30-21swapper/310:21:053
2738506991815,1cyclictest0-21swapper/210:45:002
2738506991815,1cyclictest0-21swapper/209:56:042
2738506991814,2cyclictest0-21swapper/211:11:062
2738504991815,2cyclictest3121762-21kthreadcore11:51:021
273850299183,13cyclictest2835403-21sh08:25:000
2738502991815,2cyclictest3880722-21gmain10:14:550
2738502991815,2cyclictest3026157-21cut10:45:010
2738502991815,2cyclictest3019071-21sendmail10:40:000
2738502991815,2cyclictest2892105-21latency_hist09:10:010
2649091180,2phc2sys0-21swapper/312:08:353
2649091180,2phc2sys0-21swapper/311:53:413
27752902170,1sleep00-21swapper/007:36:020
2738506991714,1cyclictest0-21swapper/212:00:012
2738506991714,1cyclictest0-21swapper/211:41:392
2738506991714,1cyclictest0-21swapper/209:36:002
2738506991714,1cyclictest0-21swapper/209:16:012
2738506991714,1cyclictest0-21swapper/207:15:012
2738506991713,2cyclictest0-21swapper/210:11:012
273850499179,3cyclictest0-21swapper/109:35:251
273850499178,4cyclictest0-21swapper/112:30:011
273850499174,6cyclictest3068528-21apt-get11:15:541
2738504991714,2cyclictest3152393-21latency_hist12:15:011
2738504991714,2cyclictest3068015-21latency_hist11:15:001
2738504991714,2cyclictest2943101-21mailstats09:41:051
2738504991714,2cyclictest1290-21dbus-daemon07:35:011
2738504991714,2cyclictest0-21swapper/111:00:001
2738504991714,2cyclictest0-21swapper/110:50:021
2738504991713,3cyclictest2745109-21processes07:15:011
2738504991713,3cyclictest1-21systemd08:15:001
2738504991710,3cyclictest3139023-21tail12:05:541
273850299179,7cyclictest0-21swapper/009:36:030
273850299178,5cyclictest3181032-21tail12:35:560
273850299178,5cyclictest3181032-21tail12:35:560
273850299177,5cyclictest0-21swapper/011:11:360
2738502991714,2cyclictest3078982-21kthreadcore11:21:010
2738502991714,2cyclictest1290-21dbus-daemon11:45:010
2738502991713,3cyclictest2816154-21apt-config08:10:000
2738502991713,2cyclictest3131157-21latency_hist12:00:020
2738502991710,6cyclictest2926547-21kthreadcore09:31:010
2738502991710,4cyclictest3840882-21snmpd11:06:190
273850299170,12cyclictest3145683-21ssh12:10:020
2649091170,4phc2sys0-21swapper/307:10:543
2649091170,2phc2sys0-21swapper/312:20:463
2649091170,2phc2sys0-21swapper/309:57:353
383433398160,2rtkit-daemon3851702-21mta-sts-daemon07:40:141
273850699161,8cyclictest0-21swapper/208:40:012
2738506991613,1cyclictest0-21swapper/212:15:542
2738506991613,1cyclictest0-21swapper/212:06:052
2738506991613,1cyclictest0-21swapper/211:36:072
2738506991613,1cyclictest0-21swapper/211:20:592
2738506991613,1cyclictest0-21swapper/209:50:592
2738506991613,1cyclictest0-21swapper/209:41:072
2738506991613,1cyclictest0-21swapper/209:25:012
2738506991613,1cyclictest0-21swapper/208:55:012
2738506991613,1cyclictest0-21swapper/208:20:002
2738506991613,1cyclictest0-21swapper/207:15:592
273850499167,4cyclictest0-21swapper/109:31:001
2738504991613,2cyclictest2887754-21kthreadcore09:06:021
2738504991613,2cyclictest2869933-21kthreadcore08:51:011
2738504991613,2cyclictest1996-21runrttasks11:32:071
2738504991612,2cyclictest0-21swapper/109:20:021
2738504991612,1cyclictest3851705-21mta-sts-daemon07:15:571
2738504991610,5cyclictest3851705-21mta-sts-daemon11:36:061
273850299169,6cyclictest0-21swapper/012:30:530
273850299167,4cyclictest0-21swapper/010:30:560
273850299167,4cyclictest0-21swapper/010:23:050
273850299166,5cyclictest0-21swapper/010:05:570
2738502991613,2cyclictest2987632-21kthreadcore10:16:000
2738502991613,2cyclictest2842284-21cpuspeed_turbos08:30:570
2738502991613,2cyclictest2760962-21gltestperf07:25:570
2738502991613,2cyclictest2749013-21kthreadcore07:16:000
2738502991613,2cyclictest2745431-21latency_hist07:15:020
2738502991613,2cyclictest2738497-21cyclictest08:46:010
2738502991613,2cyclictest0-21swapper/009:00:020
2738502991613,2cyclictest0-21swapper/007:55:000
2738502991612,3cyclictest3827634-1atopacctd08:26:010
2738502991612,3cyclictest2971247-21kthreadcore10:01:010
2738502991612,3cyclictest2825883-21kthreadcore08:16:010
2738502991612,3cyclictest2738599-21apt-key07:10:010
273850299161,10cyclictest2784935-21latency_hist07:45:000
2738502991610,5cyclictest2891958-21diskmemload11:25:550
273850299160,5cyclictest491rcuog/209:57:450
273850299160,4cyclictest0-21swapper/009:20:530
2649091161,7phc2sys0-21swapper/311:05:513
2649091161,2phc2sys0-21swapper/310:18:403
273850699158,5cyclictest3092625-21chrt11:30:582
2738506991513,1cyclictest0-21swapper/210:40:012
2738506991512,1cyclictest0-21swapper/212:20:572
2738506991512,1cyclictest0-21swapper/211:45:532
2738506991512,1cyclictest0-21swapper/211:01:032
2738506991512,1cyclictest0-21swapper/210:20:012
2738506991512,1cyclictest0-21swapper/210:01:012
2738506991512,1cyclictest0-21swapper/208:35:002
2738506991512,1cyclictest0-21swapper/208:30:002
2738506991512,1cyclictest0-21swapper/208:25:012
2738506991512,1cyclictest0-21swapper/208:13:592
2738506991512,1cyclictest0-21swapper/207:55:582
2738506991512,1cyclictest0-21swapper/207:55:582
2738506991512,1cyclictest0-21swapper/207:40:012
2738506991512,1cyclictest0-21swapper/207:31:082
2738506991512,1cyclictest0-21swapper/207:25:012
2738506991511,2cyclictest0-21swapper/211:15:572
2738506991511,2cyclictest0-21swapper/209:06:032
273850499158,2cyclictest3019145-21kworker/u16:3-events_unbound11:27:101
273850499156,4cyclictest0-21swapper/110:45:021
2738504991512,2cyclictest3851704-21mta-sts-daemon08:50:011
2738504991512,2cyclictest3160206-21tr12:20:551
2738504991512,2cyclictest3061093-21latency_hist11:10:011
2738504991512,2cyclictest3036287-21kthreadcore10:51:011
2738504991512,2cyclictest2945344-21acpi09:45:521
2738504991512,2cyclictest2760960-21cut07:25:571
2738504991512,2cyclictest0-21swapper/111:25:001
2738504991511,3cyclictest3010078-21kthreadcore10:31:011
2738504991511,3cyclictest3003003-21kthreadcore10:26:001
2738504991511,3cyclictest2961627-21irqrtprio09:55:591
2738504991511,3cyclictest2837859-21kthreadcore08:26:001
2738504991511,3cyclictest2831578-21kthreadcore08:21:011
2738504991511,3cyclictest2823743-21cut08:15:571
2738504991511,3cyclictest2773426-21grep07:35:591
273850299155,8cyclictest3048948-21tr11:01:010
273850299154,6cyclictest0-21swapper/011:36:030
2738502991512,2cyclictest3171004-21kthreadcore12:26:010
2738502991512,2cyclictest3137241-21mailstats12:01:090
2738502991512,2cyclictest3027257-21cut10:45:560
2738502991512,2cyclictest0-21swapper/011:31:020
2738502991511,3cyclictest3152651-21kworker/u16:0+nfsiod12:15:500
2738502991511,3cyclictest3045361-21kthreadcore10:56:010
2738502991511,3cyclictest2799605-21kthreadcore07:55:590
2738502991511,3cyclictest2799605-21kthreadcore07:55:590
2649091151,3phc2sys0-21swapper/310:10:533
26490911510,2phc2sys0-21swapper/310:01:003
2649091150,3phc2sys0-21swapper/311:56:213
2649091150,2phc2sys0-21swapper/311:47:183
2649091150,2phc2sys0-21swapper/311:21:153
2649091150,2phc2sys0-21swapper/309:11:363
2649091150,1phc2sys0-21swapper/312:15:013
2649091150,1phc2sys0-21swapper/311:19:343
29145662141,4sleep30-21swapper/309:24:153
2738506991412,1cyclictest0-21swapper/210:50:022
2738506991412,1cyclictest0-21swapper/209:15:012
2738506991411,1cyclictest0-21swapper/212:30:562
2738506991411,1cyclictest0-21swapper/211:51:002
2738506991411,1cyclictest0-21swapper/211:30:002
2738506991411,1cyclictest0-21swapper/208:41:292
2738506991411,1cyclictest0-21swapper/207:41:032
2738506991410,2cyclictest0-21swapper/211:05:582
2738506991410,2cyclictest0-21swapper/208:06:062
273850699140,7cyclictest0-21swapper/210:05:532
2738504991411,2cyclictest3181710-21if_enp1s0.812:36:001
2738504991411,2cyclictest3181710-21if_enp1s0.812:36:001
2738504991411,2cyclictest3178682-21kthreadcore12:31:011
2738504991411,2cyclictest3013770-21irqrtprio10:36:001
2738504991411,2cyclictest2979917-21/usr/sbin/munin10:11:011
2738504991411,2cyclictest2842345-21cut08:30:571
2738504991411,2cyclictest2806896-21kthreadcore08:01:021
2738504991411,2cyclictest2806896-21kthreadcore08:01:021
2738504991411,2cyclictest2786572-21kthreadcore07:46:011
2738504991411,2cyclictest0-21swapper/108:55:021
2738504991411,2cyclictest0-21swapper/108:35:571
2738504991410,3cyclictest3158495-21unixbench_singl12:16:071
2738504991410,3cyclictest2994947-21kthreadcore10:21:011
273850299149,4cyclictest3851703-21mta-sts-daemon07:34:070
273850299148,5cyclictest2738393-21kworker/u16:3-events_unbound09:16:290
273850299145,5cyclictest2713596-21kworker/u16:1+events_unbound07:20:550
2738502991411,2cyclictest3834328-21sendmail-mta12:20:430
2738502991411,2cyclictest2809136-21sendmail_mailqu08:01:050
2738502991411,2cyclictest2809136-21sendmail_mailqu08:01:050
2738502991411,2cyclictest0-21swapper/007:50:000
2738502991410,3cyclictest3072129-21kthreadcore11:16:020
2738502991410,3cyclictest2858776-21kthreadcore08:41:020
2738502991410,3cyclictest2850315-21kthreadcore08:36:000
2738502991410,3cyclictest2817481-21gltestperf08:10:580
2649091145,2phc2sys0-21swapper/310:51:013
2649091140,2phc2sys0-21swapper/312:26:353
2649091140,2phc2sys0-21swapper/309:52:223
2649091140,2phc2sys0-21swapper/309:44:083
2649091140,1phc2sys0-21swapper/312:35:503
2649091140,1phc2sys0-21swapper/312:35:503
273850699139,2cyclictest0-21swapper/210:25:592
273850699139,2cyclictest0-21swapper/207:27:402
2738506991311,1cyclictest0-21swapper/212:40:012
2738506991311,1cyclictest0-21swapper/212:40:012
2738506991311,1cyclictest0-21swapper/208:50:002
2738506991310,1cyclictest0-21swapper/209:25:592
2738506991310,1cyclictest0-21swapper/209:00:542
2738506991310,1cyclictest0-21swapper/209:00:002
2738506991310,1cyclictest0-21swapper/207:50:532
2738506991310,1cyclictest0-21swapper/207:45:582
2738506991310,1cyclictest0-21swapper/207:10:012
273850699130,1cyclictest0-21swapper/208:00:542
273850699130,1cyclictest0-21swapper/208:00:542
2738504991310,2cyclictest2754328-21cpuspeed_turbos07:20:551
273850299134,7cyclictest2883238-21tr09:01:030
2649091136,2phc2sys0-21swapper/310:25:593
2649091133,2phc2sys0-21swapper/307:27:213
2649091131,6phc2sys0-21swapper/308:00:543
2649091131,6phc2sys0-21swapper/308:00:543
2649091130,2phc2sys0-21swapper/312:00:103
2649091130,2phc2sys0-21swapper/310:41:233
2649091130,2phc2sys0-21swapper/309:46:003
383433398120,5rtkit-daemon3851705-21mta-sts-daemon07:55:151
383433398120,5rtkit-daemon3851705-21mta-sts-daemon07:55:151
273850699129,2cyclictest0-21swapper/210:34:162
2738506991210,1cyclictest0-21swapper/212:00:592
2738506991210,1cyclictest0-21swapper/209:45:402
273850499129,2cyclictest2795046-21kthreadcore07:51:011
2649091125,1phc2sys0-21swapper/307:49:493
2649091121,5phc2sys0-21swapper/310:55:533
2649091121,2phc2sys0-21swapper/310:35:023
2649091120,2phc2sys0-21swapper/312:31:543
2649091120,2phc2sys0-21swapper/311:35:323
2649091120,2phc2sys0-21swapper/309:36:133
2649091120,2phc2sys0-21swapper/308:50:533
2649091120,2phc2sys0-21swapper/308:31:533
2649091120,2phc2sys0-21swapper/308:15:463
2649091120,1phc2sys0-21swapper/307:39:033
273850699119,1cyclictest0-21swapper/212:11:002
2649091112,2phc2sys0-21swapper/311:40:553
2649091111,2phc2sys0-21swapper/310:10:013
2649091110,7phc2sys2921467-21chrt09:27:223
2649091110,3phc2sys0-21swapper/308:30:013
2649091110,3phc2sys0-21swapper/308:11:013
2649091110,2phc2sys0-21swapper/310:48:433
2649091110,1phc2sys0-21swapper/308:57:583
2649091104,2phc2sys0-21swapper/308:21:023
2649091101,2phc2sys0-21swapper/311:34:213
2649091101,2phc2sys0-21swapper/311:10:573
2649091101,2phc2sys0-21swapper/308:36:023
2649091100,2phc2sys0-21swapper/312:17:183
2649091100,2phc2sys0-21swapper/311:26:283
2649091100,2phc2sys0-21swapper/310:38:223
2649091100,2phc2sys0-21swapper/309:31:003
2649091100,2phc2sys0-21swapper/309:05:553
2649091100,2phc2sys0-21swapper/309:00:583
2649091100,2phc2sys0-21swapper/308:41:033
264909194,2phc2sys0-21swapper/307:25:023
264909191,2phc2sys0-21swapper/307:41:003
264909190,2phc2sys0-21swapper/308:49:553
264909190,2phc2sys0-21swapper/307:55:103
264909190,2phc2sys0-21swapper/307:55:103
264909190,2phc2sys0-21swapper/307:05:533
264909180,2phc2sys0-21swapper/307:50:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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