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2026-04-05 - 21:07
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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 05, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198108121120,2sleep30-21swapper/308:31:163
218344021040,2sleep30-21swapper/310:55:003
21486062990,2sleep30-21swapper/310:31:113
22141242960,2sleep02214066-21ssh11:15:010
21309892680,1sleep12130988-21ssh10:20:071
21309892680,1sleep12130988-21ssh10:20:071
1872998992724,2cyclictest2191189-21munin-plugin-st11:00:000
1872999992522,2cyclictest2244202-21cut11:35:021
1872999992522,2cyclictest2244202-21cut11:35:021
1872998992522,2cyclictest1290-21dbus-daemon09:35:000
2649191240,2ptp4l0-21swapper/312:30:003
1872999992421,2cyclictest1290-21dbus-daemon12:20:001
1872999992316,3cyclictest2297471-21/usr/sbin/munin12:11:041
1872998992313,5cyclictest1-21systemd10:35:000
1872998992312,5cyclictest2327768-21head12:31:040
1872998992210,5cyclictest1-21systemd11:20:020
1872999992117,3cyclictest3827634-1atopacctd11:16:061
1872999992117,3cyclictest2078711-21apt-get09:46:031
1872999992113,3cyclictest2222160-21/usr/sbin/munin11:21:141
1872999992112,4cyclictest2291486-21kthreadcore12:06:121
1872999992017,2cyclictest85-21kswapd009:40:021
1872999992017,2cyclictest2213936-21/usr/sbin/munin11:15:011
1872999992017,2cyclictest1879500-21open_files07:15:011
1872999992011,4cyclictest0-21swapper/110:11:081
1872999992011,4cyclictest0-21swapper/110:11:081
187299899209,6cyclictest0-21swapper/009:21:020
187299899208,6cyclictest0-21swapper/010:15:010
187299899208,6cyclictest0-21swapper/010:15:010
1872998992017,2cyclictest1893984-21cron07:25:000
1872998992015,3cyclictest0-21swapper/007:15:000
1872998992013,6cyclictest1872996-21cyclictest12:36:010
1872998992011,5cyclictest2263269-21kthreadcore11:46:110
1872998992010,5cyclictest0-21swapper/012:25:010
2649091190,2phc2sys0-21swapper/311:10:013
1872999991916,2cyclictest2268029-21sh11:51:081
1872999991916,2cyclictest0-21swapper/110:30:011
1872999991912,3cyclictest2259137-21grep11:45:001
187299899198,6cyclictest0-21swapper/012:01:110
187299899197,6cyclictest0-21swapper/010:01:120
1872998991916,2cyclictest2183581-21/usr/sbin/munin10:55:010
1872998991915,3cyclictest1326-21systemd-logind09:10:010
2649091181,4phc2sys0-21swapper/310:18:343
1872999991815,2cyclictest2234940-21mailstats11:26:131
1872999991810,3cyclictest2282243-21acpi12:01:021
187299899187,6cyclictest0-21swapper/012:26:160
187299899187,4cyclictest1944401-21apt-get08:06:050
187299899183,2cyclictest2085591-21munin-run09:50:000
187299899181,5cyclictest2175880-21cron10:50:000
1872998991815,2cyclictest2244055-21latency_hist11:35:020
1872998991815,2cyclictest2244055-21latency_hist11:35:020
1872998991815,2cyclictest1326-21systemd-logind07:30:000
1872998991815,2cyclictest0-21swapper/008:40:000
1872998991814,2cyclictest0-21swapper/011:55:000
1872998991811,5cyclictest2013250-21systemd-run09:00:010
2649091170,2phc2sys0-21swapper/311:22:283
1873000991715,1cyclictest0-21swapper/209:16:022
1873000991713,1cyclictest0-21swapper/209:32:472
1873000991710,3cyclictest0-21swapper/210:25:152
1872999991714,2cyclictest3851702-21mta-sts-daemon08:55:001
1872999991714,2cyclictest2169301-21cut10:46:041
1872999991714,2cyclictest2056893-21gltestperf09:31:071
1872999991714,2cyclictest2034953-21kthreadcore09:16:081
1872999991713,3cyclictest2149190-21kthreadcore10:31:121
1872999991712,4cyclictest1-21systemd11:10:001
187299899178,5cyclictest0-21swapper/011:44:480
187299899178,1cyclictest2048664-21ssh09:26:030
187299899177,5cyclictest0-21swapper/009:40:000
187299899176,6cyclictest0-21swapper/010:16:030
1872998991714,2cyclictest3880722-21gmain08:55:020
1872998991714,2cyclictest2214527-21kworker/u16:2-rpciod12:10:010
1872998991714,2cyclictest2038887-21mailstats09:16:130
1872998991714,2cyclictest1872996-21cyclictest11:21:180
1872998991714,2cyclictest1290-21dbus-daemon08:30:020
1872998991714,2cyclictest0-21swapper/009:15:010
1872998991713,3cyclictest3824565-21in:imuxsock08:45:000
187299899170,1cyclictest0-21swapper/008:00:520
2649091160,2phc2sys0-21swapper/309:53:243
2649091160,2phc2sys0-21swapper/309:16:263
187299999167,4cyclictest0-21swapper/111:36:131
1872999991614,1cyclictest2192112-21cpuspeed_turbos11:01:041
1872999991614,1cyclictest1-21systemd12:00:011
1872999991613,2cyclictest2168616-21latency_hist10:45:021
1872999991613,2cyclictest2028534-21kthreadcore09:11:111
1872999991613,2cyclictest1987906-21latency_hist08:40:001
1872999991613,2cyclictest1326-21systemd-logind08:15:011
1872999991613,2cyclictest0-21swapper/110:05:021
1872999991613,2cyclictest0-21swapper/109:30:021
1872999991612,3cyclictest1936562-21kthreadcore07:56:121
187299899169,6cyclictest0-21swapper/011:26:110
1872998991613,2cyclictest2251606-21munin-plugin-st11:40:000
1872998991613,2cyclictest2193187-21kthreadcore11:01:090
1872998991613,2cyclictest1326-21systemd-logind09:05:010
1872998991613,2cyclictest1-21systemd10:45:000
1872998991613,2cyclictest1-21systemd10:10:000
1872998991612,3cyclictest2072060-21if_enp1s0.809:41:100
187299899160,8cyclictest2301624-21cut12:11:110
2649091150,3phc2sys0-21swapper/308:16:073
2649091150,2phc2sys0-21swapper/311:11:103
2649091150,1phc2sys0-21swapper/310:27:043
1873000991512,1cyclictest0-21swapper/209:48:572
1873000991512,1cyclictest0-21swapper/209:40:512
1873000991512,1cyclictest0-21swapper/208:40:002
1873000991511,1cyclictest0-21swapper/211:02:382
187299999158,5cyclictest1290-21dbus-daemon09:05:001
187299999154,6cyclictest0-21swapper/108:26:031
187299999154,4cyclictest2176192-21sshd10:50:051
187299999151,4cyclictest0-21swapper/112:20:591
1872999991512,2cyclictest2337745-21kthreadcore12:36:091
1872999991512,2cyclictest2096252-21kthreadcore09:56:101
1872999991512,2cyclictest2086589-21cstates09:51:061
1872999991512,2cyclictest2078329-21systemd09:45:021
1872999991512,2cyclictest1996814-21kthreadcore08:46:111
1872999991512,2cyclictest1996814-21kthreadcore08:46:111
1872999991512,2cyclictest1996-21runrttasks10:56:541
1872999991512,2cyclictest1975667-21aten_repower_cu08:31:031
1872999991512,2cyclictest1906542-21latency_hist07:35:001
1872999991512,2cyclictest1882534-21gltestperf07:16:071
1872999991512,2cyclictest1872996-21cyclictest07:21:111
1872999991511,3cyclictest1991012-21kthreadcore08:41:101
1872999991511,3cyclictest1939453-21kthreadcore08:01:101
187299999150,11cyclictest2327553-21ssh12:30:481
187299899157,2cyclictest0-21swapper/009:50:530
187299899155,5cyclictest1955779-21mailstats08:11:160
187299899155,5cyclictest1883106-21cut07:16:090
187299899151,9cyclictest2131952-21fschecks_time10:21:060
187299899151,9cyclictest2131952-21fschecks_time10:21:060
1872998991512,2cyclictest2094057-21tr09:56:050
1872998991512,2cyclictest1923491-21kthreadcore07:46:110
1872998991512,2cyclictest0-21swapper/010:40:010
2649091140,3phc2sys0-21swapper/309:40:333
2649091140,2phc2sys0-21swapper/312:18:193
2649091140,2phc2sys0-21swapper/310:14:503
2649091140,2phc2sys0-21swapper/310:14:503
2649091140,2phc2sys0-21swapper/307:11:113
2649091140,1phc2sys0-21swapper/308:57:343
187300099147,4cyclictest2177299-21chrt10:51:072
1873000991411,1cyclictest0-21swapper/212:37:282
1873000991411,1cyclictest0-21swapper/212:09:092
1873000991411,1cyclictest0-21swapper/211:47:282
1873000991411,1cyclictest0-21swapper/210:32:222
1873000991411,1cyclictest0-21swapper/210:21:062
1873000991411,1cyclictest0-21swapper/210:21:062
1873000991411,1cyclictest0-21swapper/210:03:052
1873000991411,1cyclictest0-21swapper/207:16:172
187299999149,4cyclictest2262408-21cut11:46:101
1872999991412,1cyclictest1996-21runrttasks10:17:131
1872999991411,2cyclictest3851705-21mta-sts-daemon09:06:061
1872999991411,2cyclictest3851704-21mta-sts-daemon10:06:101
1872999991411,2cyclictest2154438-21grep10:36:051
1872999991411,2cyclictest1957600-21gltestperf08:16:061
1872999991411,2cyclictest1927386-21kthreadcore07:51:101
1872999991411,2cyclictest1916026-21kthreadcore07:41:131
1872999991411,2cyclictest1912068-21mailstats07:36:151
1872999991411,2cyclictest1897278-21sed07:26:111
1872999991410,3cyclictest3851704-21mta-sts-daemon08:57:051
1872999991410,3cyclictest1964426-21irqrtprio08:21:091
1872999991410,3cyclictest1921336-21kthreadcore07:46:091
187299899147,5cyclictest3851703-21mta-sts-daemon10:25:150
187299899144,5cyclictest1976435-21cat08:31:070
1872998991411,2cyclictest2307663-21kthreadcore12:16:090
1872998991411,2cyclictest1968371-21switchtime08:21:160
1872998991411,2cyclictest1935790-21kthreadcore07:56:120
1872998991411,2cyclictest1909978-21kthreadcore07:36:110
1872998991411,2cyclictest1903523-21kthreadcore07:31:110
1872998991411,2cyclictest0-21swapper/012:00:000
1872998991410,3cyclictest1957935-21irqcore08:16:070
1872998991410,3cyclictest1927208-21kthreadcore07:51:100
2649091130,3phc2sys0-21swapper/312:01:033
2649091130,3phc2sys0-21swapper/309:14:143
2649091130,3phc2sys0-21swapper/308:46:043
2649091130,3phc2sys0-21swapper/308:46:043
2649091130,3phc2sys0-21swapper/308:00:273
2649091130,2phc2sys0-21swapper/312:06:183
2649091130,2phc2sys0-21swapper/311:46:413
2649091130,2phc2sys0-21swapper/311:30:303
2649091130,2phc2sys0-21swapper/311:30:303
2649091130,2phc2sys0-21swapper/309:06:403
2649091130,2phc2sys0-21swapper/308:05:373
187300099139,2cyclictest0-21swapper/212:10:562
187300099139,2cyclictest0-21swapper/209:06:062
187300099139,2cyclictest0-21swapper/208:25:552
187300099133,5cyclictest2007037-21chrt08:55:032
187300099131,3cyclictest21843532sleep210:56:052
1873000991311,1cyclictest0-21swapper/210:41:552
1873000991311,1cyclictest0-21swapper/209:38:462
1873000991310,1cyclictest0-21swapper/212:25:432
1873000991310,1cyclictest0-21swapper/211:32:292
1873000991310,1cyclictest0-21swapper/211:32:292
1873000991310,1cyclictest0-21swapper/211:21:192
1873000991310,1cyclictest0-21swapper/210:19:002
1873000991310,1cyclictest0-21swapper/209:53:332
1873000991310,1cyclictest0-21swapper/209:20:592
1873000991310,1cyclictest0-21swapper/209:02:572
1873000991310,1cyclictest0-21swapper/207:55:192
1873000991310,1cyclictest0-21swapper/207:48:432
187300099130,7cyclictest0-21swapper/210:46:032
1872999991310,2cyclictest3851702-21mta-sts-daemon12:27:081
1872999991310,2cyclictest1944369-21/usr/sbin/munin08:06:081
187299899132,6cyclictest0-21swapper/011:06:060
187299899131,7cyclictest1913168-21apt-get07:41:050
1872998991310,2cyclictest0-21swapper/008:46:100
1872998991310,2cyclictest0-21swapper/008:46:100
2649091124,2phc2sys0-21swapper/311:25:163
2649091122,2phc2sys0-21swapper/309:46:003
2649091121,4phc2sys0-21swapper/311:51:043
2649091120,3phc2sys0-21swapper/311:01:573
2649091120,2phc2sys0-21swapper/312:36:213
2649091120,2phc2sys0-21swapper/311:16:033
2649091120,2phc2sys0-21swapper/310:59:273
2649091120,2phc2sys0-21swapper/310:35:453
2649091120,2phc2sys0-21swapper/308:40:313
2649091120,2phc2sys0-21swapper/308:12:023
2649091120,1phc2sys0-21swapper/311:44:323
2649091120,1phc2sys0-21swapper/310:20:183
2649091120,1phc2sys0-21swapper/310:20:183
2649091120,1phc2sys0-21swapper/309:59:103
187300099129,1cyclictest0-21swapper/212:20:262
187300099129,1cyclictest0-21swapper/211:54:562
187300099129,1cyclictest0-21swapper/211:40:102
187300099129,1cyclictest0-21swapper/211:09:592
187300099129,1cyclictest0-21swapper/210:07:582
187300099129,1cyclictest0-21swapper/209:11:002
187300099129,1cyclictest0-21swapper/208:14:492
187300099129,1cyclictest0-21swapper/208:08:272
187300099129,1cyclictest0-21swapper/208:00:152
187300099128,2cyclictest0-21swapper/208:18:172
187300099128,2cyclictest0-21swapper/207:42:452
187300099121,9cyclictest2251546-21taskset11:39:572
1873000991210,1cyclictest0-21swapper/212:30:442
1873000991210,1cyclictest0-21swapper/210:12:132
1873000991210,1cyclictest0-21swapper/210:12:132
1873000991210,1cyclictest0-21swapper/207:30:052
187300099120,1cyclictest0-21swapper/211:11:002
187299999128,3cyclictest2042327-21irqrtprio09:21:091
187299899129,2cyclictest0-21swapper/007:10:010
2649091111,4phc2sys0-21swapper/307:26:033
2649091111,2phc2sys0-21swapper/310:01:113
2649091110,2phc2sys0-21swapper/310:48:563
2649091110,2phc2sys0-21swapper/310:42:403
2649091110,1phc2sys0-21swapper/311:59:553
23339322110,2sleep30-21swapper/312:33:053
187300099119,1cyclictest0-21swapper/212:17:062
187300099119,1cyclictest0-21swapper/212:01:282
187300099119,1cyclictest0-21swapper/211:16:252
187300099119,1cyclictest0-21swapper/209:28:532
187300099119,1cyclictest0-21swapper/207:22:562
187300099119,1cyclictest0-21swapper/207:10:052
187300099118,1cyclictest0-21swapper/211:25:062
187300099118,1cyclictest0-21swapper/210:37:252
187300099118,1cyclictest0-21swapper/209:55:312
187300099118,1cyclictest0-21swapper/208:45:432
187300099118,1cyclictest0-21swapper/208:45:432
187300099118,1cyclictest0-21swapper/208:40:262
187300099118,1cyclictest0-21swapper/208:30:312
187300099110,4cyclictest0-21swapper/211:56:032
18670072111,4sleep11867023-21cat07:06:031
2649091103,3phc2sys0-21swapper/312:13:453
2649091102,2phc2sys0-21swapper/309:31:053
2649091101,2phc2sys0-21swapper/312:21:073
2649091101,2phc2sys0-21swapper/308:36:103
2649091100,2phc2sys0-21swapper/310:09:203
2649091100,2phc2sys0-21swapper/309:37:503
2649091100,2phc2sys0-21swapper/309:26:163
2649091100,2phc2sys0-21swapper/309:22:443
2649091100,2phc2sys0-21swapper/309:03:273
2649091100,2phc2sys0-21swapper/308:51:093
2649091100,2phc2sys0-21swapper/308:24:363
2649091100,2phc2sys0-21swapper/307:50:013
2649091100,2phc2sys0-21swapper/307:41:073
2649091100,2phc2sys0-21swapper/307:16:033
187300099108,1cyclictest0-21swapper/208:21:182
187300099107,2cyclictest0-21swapper/207:52:002
187300099106,2cyclictest0-21swapper/207:25:062
187300099101,7cyclictest1906818-21chrt07:35:482
187300099101,6cyclictest2000798-21chrt08:50:022
264909192,1phc2sys0-21swapper/311:35:303
264909191,4phc2sys0-21swapper/307:06:033
264909190,3phc2sys0-21swapper/308:26:033
264909190,2phc2sys0-21swapper/307:56:063
264909190,2phc2sys0-21swapper/307:36:063
264909190,2phc2sys0-21swapper/307:25:003
264909181,2phc2sys0-21swapper/307:50:053
264909180,2phc2sys0-21swapper/307:30:253
18730009980,3cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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