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2026-04-11 - 19:29
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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 Sat Apr 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86462721040,1sleep10-21swapper/107:40:591
9252642980,2sleep20-21swapper/208:26:042
12321662700,1sleep11232165-21ssh11:56:341
11820502650,1sleep01182049-21cut11:25:590
10501552380,2sleep30-21swapper/309:56:073
823765993220,7cyclictest0-21swapper/010:05:540
383433398310,3rtkit-daemon3952751-21ntpd09:59:240
10150442290,1sleep11014986-21ssh09:35:571
8252102280,3sleep1825212-21irqrtprio07:11:011
12237352280,1sleep20-21swapper/211:51:062
823766992620,2cyclictest134050irq/121-eno111:15:001
82376599269,14cyclictest995758-21kthreadcore09:21:040
823765992623,2cyclictest1135186-21grep10:55:000
823766992320,2cyclictest1256117-21grep12:15:001
383433398230,5rtkit-daemon3851702-21mta-sts-daemon10:33:080
383433398230,2rtkit-daemon0-21swapper/010:55:580
823767992219,1cyclictest0-21swapper/209:45:012
823767992218,2cyclictest0-21swapper/212:00:372
383433398220,2rtkit-daemon3851705-21mta-sts-daemon10:17:020
823767992118,1cyclictest0-21swapper/208:35:012
823766992117,3cyclictest1290-21dbus-daemon09:20:011
823766992117,3cyclictest1240808-21latency_hist12:05:011
823765992118,2cyclictest1150181-21cron11:05:000
823765992113,4cyclictest0-21swapper/012:40:010
823765992112,5cyclictest1095954-21unixbench-2d10:26:100
82376599210,19cyclictest911415-21grep08:16:040
383433398210,3rtkit-daemon3952751-21ntpd09:28:500
383433398210,2rtkit-daemon1120508-21ssh10:45:170
823767992017,1cyclictest0-21swapper/209:05:002
823767992017,1cyclictest0-21swapper/207:30:002
823766992017,2cyclictest932834-21grep08:35:031
823766992017,2cyclictest1082218-21apt-config10:20:001
823766992014,2cyclictest383433398rtkit-daemon09:42:361
82376599209,6cyclictest0-21swapper/012:30:010
823765992013,6cyclictest0-21swapper/012:20:010
823765992012,4cyclictest1055951-21kthreadcore10:01:030
383433398200,3rtkit-daemon3952751-21ntpd09:40:160
383433398200,3rtkit-daemon3840882-21snmpd07:14:440
823767991915,2cyclictest0-21swapper/211:45:592
823766991916,2cyclictest844814-21cron07:25:001
823766991916,2cyclictest1180816-21systemd-run11:25:011
823766991912,3cyclictest1211977-21fschecks_count11:45:581
823765991916,2cyclictest963831-21systemctl09:00:000
823765991912,6cyclictest0-21swapper/010:45:030
823765991910,8cyclictest0-21swapper/011:35:540
2649091190,2phc2sys0-21swapper/310:59:263
82376799189,5cyclictest0-21swapper/207:30:552
823767991816,1cyclictest0-21swapper/207:15:012
823767991815,1cyclictest0-21swapper/212:35:002
823767991815,1cyclictest0-21swapper/210:37:392
823767991815,1cyclictest0-21swapper/209:56:082
823767991815,1cyclictest0-21swapper/208:41:032
823767991815,1cyclictest0-21swapper/208:25:012
823767991815,1cyclictest0-21swapper/207:10:002
823767991814,2cyclictest0-21swapper/211:35:532
823767991814,2cyclictest0-21swapper/211:06:012
823766991815,2cyclictest823763-21cyclictest09:30:021
823766991815,2cyclictest1158041-21gpgconf11:10:011
823766991815,2cyclictest1051992-21idleruntime-cro10:00:001
823766991811,3cyclictest1267861-21kthreadcore12:21:051
823766991810,3cyclictest0-21swapper/112:35:011
82376599188,5cyclictest0-21swapper/011:45:330
82376599187,6cyclictest0-21swapper/012:30:330
82376599187,6cyclictest0-21swapper/009:35:550
823765991815,2cyclictest1256202-21systemd12:15:000
823765991815,2cyclictest1-21systemd11:20:060
823765991815,2cyclictest1-21systemd07:40:550
823765991815,2cyclictest1087920-21needreboot10:21:040
823765991815,2cyclictest1035268-21mailstats09:46:070
823765991814,2cyclictest0-21swapper/011:15:010
82376599180,11cyclictest0-21swapper/008:25:540
2649091180,2phc2sys0-21swapper/311:27:073
823767991715,1cyclictest0-21swapper/209:38:372
823767991714,1cyclictest0-21swapper/212:06:022
823767991714,1cyclictest0-21swapper/211:40:582
823767991714,1cyclictest0-21swapper/211:40:582
823767991714,1cyclictest0-21swapper/211:00:012
823767991714,1cyclictest0-21swapper/209:46:032
823767991714,1cyclictest0-21swapper/209:11:182
823767991714,1cyclictest0-21swapper/208:55:002
823767991714,1cyclictest0-21swapper/207:45:012
823767991714,1cyclictest0-21swapper/207:15:592
823767991713,2cyclictest0-21swapper/210:14:062
82376699179,4cyclictest957140-21/usr/sbin/munin08:51:091
82376699179,4cyclictest0-21swapper/111:05:001
82376699178,4cyclictest0-21swapper/111:40:011
82376699171,4cyclictest1195764-21dump-pmu-power11:35:011
823766991714,2cyclictest960804-21kthreadcore08:56:021
823766991714,2cyclictest945133-21grep08:45:001
823766991714,2cyclictest852205-21tail07:30:591
823766991714,2cyclictest823763-21cyclictest12:36:041
823766991714,2cyclictest1119911-21sh10:45:001
823766991714,2cyclictest1097594-21/usr/sbin/munin10:30:011
823766991714,2cyclictest1007469-21cpuspeed_turbos09:30:561
823766991711,5cyclictest830028-21munin-node10:08:301
82376599178,7cyclictest946089-21sort08:45:590
82376599178,7cyclictest946089-21sort08:45:590
823765991714,2cyclictest1189651-21idleruntime11:31:010
823765991714,2cyclictest1151529-21gltestperf11:06:000
823765991714,2cyclictest1007757-21sh09:30:570
823765991711,5cyclictest1105422-21/usr/sbin/munin10:35:590
2649091170,3phc2sys0-21swapper/312:31:083
82376799168,3cyclictest0-21swapper/208:35:572
823767991613,1cyclictest0-21swapper/212:26:032
823767991613,1cyclictest0-21swapper/212:21:032
823767991613,1cyclictest0-21swapper/211:21:092
823767991613,1cyclictest0-21swapper/211:02:312
823767991613,1cyclictest0-21swapper/210:55:012
823767991613,1cyclictest0-21swapper/210:46:042
823767991613,1cyclictest0-21swapper/210:25:582
823767991613,1cyclictest0-21swapper/210:16:082
823767991613,1cyclictest0-21swapper/210:01:012
823767991613,1cyclictest0-21swapper/208:15:012
823767991613,1cyclictest0-21swapper/208:06:072
823767991613,1cyclictest0-21swapper/208:01:002
823767991613,1cyclictest0-21swapper/207:56:002
823767991613,1cyclictest0-21swapper/207:21:012
823767991612,2cyclictest0-21swapper/212:16:092
823767991612,2cyclictest0-21swapper/211:56:062
823767991612,2cyclictest0-21swapper/210:30:552
82376699169,3cyclictest1186521-21/usr/sbin/munin11:26:071
82376699168,4cyclictest1030075-21aten2.4-expect09:45:561
823766991613,2cyclictest3851705-21mta-sts-daemon09:52:331
823766991613,2cyclictest1326-21systemd-logind07:36:591
823766991613,2cyclictest1225914-21/usr/sbin/munin11:55:011
823766991613,2cyclictest1203866-21apt11:40:531
823766991613,2cyclictest1203866-21apt11:40:531
823766991613,2cyclictest1126010-21mailstats10:46:081
823766991613,2cyclictest0-21swapper/107:50:001
823766991612,3cyclictest1108375-21kthreadcore10:36:031
82376599168,1cyclictest1218813-21ssh11:50:550
82376599166,5cyclictest0-21swapper/011:56:030
823765991613,2cyclictest977613-21grep09:10:580
823765991613,2cyclictest976387-21sh09:10:000
823765991613,2cyclictest882602-21latency_hist07:55:020
823765991613,2cyclictest823763-21cyclictest07:21:020
823765991613,2cyclictest1290-21dbus-daemon11:20:010
823765991613,2cyclictest1-21systemd08:24:350
823765991613,2cyclictest1210743-21cron11:45:000
823765991613,2cyclictest1210743-21cron11:45:000
823765991612,3cyclictest3827634-1atopacctd08:01:030
2649091160,3phc2sys0-21swapper/309:37:563
2649091160,2phc2sys0-21swapper/311:45:593
823767991513,1cyclictest0-21swapper/211:26:042
823767991513,1cyclictest0-21swapper/210:41:012
823767991513,1cyclictest0-21swapper/207:40:012
823767991512,1cyclictest0-21swapper/212:11:022
823767991512,1cyclictest0-21swapper/211:30:582
823767991512,1cyclictest0-21swapper/211:11:012
823767991512,1cyclictest0-21swapper/210:10:022
823767991512,1cyclictest0-21swapper/209:31:012
823767991512,1cyclictest0-21swapper/209:25:592
823767991512,1cyclictest0-21swapper/209:16:022
823767991512,1cyclictest0-21swapper/208:56:032
823767991512,1cyclictest0-21swapper/208:46:022
823767991512,1cyclictest0-21swapper/208:46:022
823767991512,1cyclictest0-21swapper/208:16:022
823767991512,1cyclictest0-21swapper/207:45:572
823767991511,2cyclictest0-21swapper/212:35:572
823767991511,2cyclictest0-21swapper/210:21:022
823767991511,2cyclictest0-21swapper/209:51:022
823767991511,2cyclictest0-21swapper/209:06:022
82376699159,2cyclictest134050irq/121-eno112:19:151
82376699159,2cyclictest134050irq/121-eno111:16:021
82376699157,3cyclictest1088155-21wc10:21:061
823766991513,1cyclictest3851702-21mta-sts-daemon10:55:451
823766991513,1cyclictest3851702-21mta-sts-daemon09:12:341
823766991512,2cyclictest971867-21kthreadcore09:06:021
823766991512,2cyclictest938847-21cron08:40:001
823766991512,2cyclictest831465-21kthreadcore07:15:021
823766991512,2cyclictest3851703-21mta-sts-daemon12:05:081
823766991512,2cyclictest1274299-21kthreadcore12:26:021
823766991512,2cyclictest1132594-21kthreadcore10:51:041
823766991512,2cyclictest1098245-21cpuspeed_turbos10:30:571
823766991512,2cyclictest0-21swapper/108:30:001
823766991511,3cyclictest993263-21kthreadcore09:21:031
82376599159,5cyclictest3851704-21mta-sts-daemon12:21:000
823765991512,2cyclictest985263-21if_enp1s009:16:000
823765991512,2cyclictest830582-21kthreadcore07:15:020
823765991512,2cyclictest3851705-21mta-sts-daemon12:05:380
823765991512,2cyclictest3851703-21mta-sts-daemon08:50:550
823765991512,2cyclictest3827634-1atopacctd12:01:030
823765991512,2cyclictest1038277-21tail09:51:000
823765991511,3cyclictest1070806-21kthreadcore10:11:030
2649091150,2phc2sys0-21swapper/308:00:063
2649091150,2phc2sys0-21swapper/307:27:513
2649091150,2phc2sys0-21swapper/307:20:553
823767991412,1cyclictest0-21swapper/207:51:042
823767991411,1cyclictest0-21swapper/211:16:012
823767991411,1cyclictest0-21swapper/209:21:032
823766991411,2cyclictest915307-21tr08:21:031
823766991411,2cyclictest902801-21kthreadcore08:11:031
823766991410,3cyclictest967420-21kthreadcore09:01:021
823766991410,3cyclictest898280-21kthreadcore08:06:041
823766991410,3cyclictest880800-21kthreadcore07:51:051
82376599144,5cyclictest965389-21cut09:01:010
82376599141,7cyclictest939302-21aten2.4-expect08:40:560
823765991411,2cyclictest931243-21latency08:31:050
823765991411,2cyclictest863072-21timerwakeupswit07:36:090
823765991411,2cyclictest852204-21cut07:30:590
823765991411,2cyclictest0-21swapper/007:50:010
823765991410,3cyclictest906869-21timerwakeupswit08:11:090
823765991410,3cyclictest883750-21irqcore07:56:010
823765991410,3cyclictest848143-21kthreadcore07:26:040
2649091141,5phc2sys0-21swapper/310:30:553
2649091140,2phc2sys0-21swapper/312:02:433
2649091140,2phc2sys0-21swapper/311:58:013
2649091140,2phc2sys0-21swapper/311:16:453
2649091140,2phc2sys0-21swapper/310:47:393
2649091140,2phc2sys0-21swapper/309:50:563
2649091140,2phc2sys0-21swapper/308:40:573
2649091140,2phc2sys0-21swapper/307:15:023
2649091140,1phc2sys0-21swapper/310:53:283
2649091140,1phc2sys0-21swapper/309:07:023
82376699139,3cyclictest884215-21kthreadcore07:56:021
82376699136,5cyclictest1069123-21tr10:11:011
82376699131,6cyclictest851286-21cat07:30:011
823766991311,1cyclictest908836-21irqrtprio08:16:021
823766991310,2cyclictest945547-21aten2.4-expect08:45:561
823766991310,2cyclictest945547-21aten2.4-expect08:45:561
823766991310,2cyclictest823763-21cyclictest08:01:031
823766991310,2cyclictest1053332-21tail10:00:591
82376599131,8cyclictest933756-21idleruntime08:36:010
823765991310,2cyclictest896570-21kthreadcore08:06:030
2649091131,2phc2sys0-21swapper/308:26:233
2649091130,3phc2sys0-21swapper/311:00:583
2649091130,3phc2sys0-21swapper/308:53:233
2649091130,2phc2sys0-21swapper/311:35:413
2649091130,2phc2sys0-21swapper/310:41:243
2649091130,2phc2sys0-21swapper/309:24:373
2649091130,2phc2sys0-21swapper/307:34:553
2649091130,1phc2sys0-21swapper/312:35:593
2649091130,1phc2sys0-21swapper/307:43:153
82376699129,2cyclictest3824567-21rs:main1
82376599121,6cyclictest823609-21latency_hist07:10:000
2649091126,2phc2sys0-21swapper/308:31:073
2649091120,2phc2sys0-21swapper/312:28:043
2649091120,2phc2sys0-21swapper/311:52:433
2649091120,2phc2sys0-21swapper/311:21:383
2649091120,2phc2sys0-21swapper/310:20:303
2649091120,2phc2sys0-21swapper/307:10:573
2649091112,2phc2sys0-21swapper/311:44:313
2649091112,2phc2sys0-21swapper/311:44:313
2649091110,2phc2sys0-21swapper/310:27:233
2649091110,2phc2sys0-21swapper/307:55:233
2649091110,1phc2sys0-21swapper/312:22:513
2649091110,1phc2sys0-21swapper/312:12:553
2649091110,1phc2sys0-21swapper/307:37:343
2649091102,2phc2sys0-21swapper/309:17:523
2649091101,4phc2sys0-21swapper/308:05:563
2649091101,2phc2sys0-21swapper/310:40:023
2649091101,2phc2sys0-21swapper/309:11:033
2649091101,1phc2sys0-21swapper/311:12:523
2649091100,4phc2sys0-21swapper/310:10:553
2649091100,3phc2sys0-21swapper/310:05:033
2649091100,3phc2sys0-21swapper/309:34:563
2649091100,2phc2sys0-21swapper/312:17:063
2649091100,2phc2sys0-21swapper/312:05:153
2649091100,2phc2sys0-21swapper/311:30:563
2649091100,2phc2sys0-21swapper/311:10:003
2649091100,2phc2sys0-21swapper/309:41:103
2649091100,2phc2sys0-21swapper/309:26:553
2649091100,2phc2sys0-21swapper/307:10:013
2649091100,1phc2sys0-21swapper/309:02:213
2649091100,1phc2sys0-21swapper/308:17:533
2649091100,1phc2sys0-21swapper/307:50:243
264909191,2phc2sys0-21swapper/308:46:023
264909191,2phc2sys0-21swapper/308:46:023
264909190,3phc2sys0-21swapper/308:35:353
264909190,2phc2sys0-21swapper/310:15:253
264909190,2phc2sys0-21swapper/310:00:143
264909190,2phc2sys0-21swapper/309:45:033
264909190,2phc2sys0-21swapper/308:56:003
264909190,2phc2sys0-21swapper/308:21:103
264909190,2phc2sys0-21swapper/307:45:593
264909180,2phc2sys0-21swapper/308:11:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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