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2026-01-07 - 22:31
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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 Wed Jan 07, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220251821160,4sleep02202521-21sort10:13:090
24061362990,2sleep30-21swapper/312:05:023
1943987992619,6cyclictest2289165-21munin-plugin-st11:00:011
2649091250,5phc2sys0-21swapper/308:03:053
194398799243,2cyclictest2359151-21ssh11:38:131
1943988992321,1cyclictest0-21swapper/208:10:022
1943986992314,5cyclictest2318155-21/usr/sbin/munin11:18:060
1943986992219,2cyclictest2280385-21/usr/sbin/munin10:55:010
1943986992212,6cyclictest0-21swapper/009:45:010
194398699217,8cyclictest0-21swapper/011:38:010
1943986992117,3cyclictest1327-21in:imuxsock08:45:010
1943986992112,8cyclictest0-21swapper/011:23:040
2649091200,2phc2sys0-21swapper/311:46:283
1943988992018,1cyclictest0-21swapper/207:15:012
1943987992017,2cyclictest2172823-21systemd09:55:021
1943987992017,2cyclictest1326-21systemd-logind11:55:011
1943987992016,3cyclictest1326-21systemd-logind12:15:011
194398699201,1cyclictest2408223-21ssh12:08:030
2649091190,2phc2sys0-21swapper/312:18:023
1943988991916,1cyclictest0-21swapper/208:55:012
194398899191,2cyclictest0-21swapper/211:27:102
1943987991916,2cyclictest2276141-21ps10:53:111
1943987991916,2cyclictest1290-21dbus-daemon09:25:001
1943987991915,2cyclictest134050irq/121-eno109:28:131
1943987991911,3cyclictest1288-1atopacctd11:18:091
194398699199,5cyclictest0-21swapper/010:18:100
194398699198,6cyclictest0-21swapper/012:38:040
194398699198,6cyclictest0-21swapper/010:33:180
194398699198,6cyclictest0-21swapper/010:33:180
1943986991916,2cyclictest0-21swapper/011:45:010
1943986991916,2cyclictest0-21swapper/007:25:010
1943986991911,4cyclictest2264386-21kworker/u16:2-nfsiod12:21:370
2649091180,2phc2sys0-21swapper/310:17:063
194398899187,5cyclictest0-21swapper/208:50:022
194398899182,5cyclictest23998272sleep212:03:092
1943988991815,1cyclictest0-21swapper/211:40:012
1943988991815,1cyclictest0-21swapper/210:29:352
1943988991815,1cyclictest0-21swapper/209:53:102
194398899181,1cyclictest0-21swapper/211:42:172
1943987991815,2cyclictest28938-21cron12:25:001
1943987991815,2cyclictest2444720-21gltestperf12:28:071
1943987991815,2cyclictest2067679-21perf08:50:001
1943987991815,2cyclictest1327-21in:imuxsock07:25:011
1943987991815,2cyclictest1288-1atopacctd09:05:021
1943987991813,3cyclictest2104367-21kthreadcore09:18:121
1943987991812,2cyclictest134050irq/121-eno109:38:161
1943987991812,1cyclictest191rcu_preempt09:33:381
1943987991810,3cyclictest2206782-21sensors_fan10:13:151
1943986991815,2cyclictest2298090-21idleruntime-cro11:05:010
1943986991815,2cyclictest2073702-21munin-plugin-st08:55:010
1943986991811,6cyclictest0-21swapper/009:58:120
1943986991811,6cyclictest0-21swapper/009:50:000
1943986991810,6cyclictest0-21swapper/011:50:010
194398699180,17cyclictest0-21swapper/010:04:010
194398699180,14cyclictest0-21swapper/010:50:000
2649091170,2phc2sys0-21swapper/309:43:163
194398899175,8cyclictest0-21swapper/211:50:022
194398899172,8cyclictest0-21swapper/211:10:022
1943988991714,1cyclictest0-21swapper/212:35:282
1943988991714,1cyclictest0-21swapper/212:23:102
1943988991714,1cyclictest0-21swapper/212:15:012
1943988991714,1cyclictest0-21swapper/211:23:082
1943988991714,1cyclictest0-21swapper/210:58:142
1943988991714,1cyclictest0-21swapper/210:55:012
1943988991714,1cyclictest0-21swapper/209:58:122
1943988991714,1cyclictest0-21swapper/209:38:042
1943988991714,1cyclictest0-21swapper/209:23:162
1943988991713,2cyclictest0-21swapper/211:18:062
194398899171,10cyclictest0-21swapper/209:30:022
194398799179,3cyclictest2346580-21kthreadcore11:33:091
194398799178,1cyclictest134050irq/121-eno110:05:331
194398799176,6cyclictest36-21ksoftirqd/108:35:001
1943987991714,2cyclictest1994538-21latency_hist07:50:011
1943987991714,2cyclictest1950598-21tail07:15:021
1943987991713,3cyclictest2073154-21mailstats08:53:141
194398699179,4cyclictest0-21swapper/011:35:020
194398699178,4cyclictest0-21swapper/010:58:130
194398699178,4cyclictest0-21swapper/009:25:020
1943986991715,1cyclictest29021-21rtkit-daemon11:59:390
1943986991715,1cyclictest29021-21rtkit-daemon11:59:390
1943986991714,2cyclictest2406069-21munin-plugin-st12:05:020
1943986991714,2cyclictest2074948-21gltestperf08:58:080
1943986991711,5cyclictest2094094-21aten_repower_po09:13:060
1943986991710,6cyclictest0-21swapper/012:33:070
1943986991710,3cyclictest2091830-21diskmemload10:05:270
1943986991710,3cyclictest2091830-21diskmemload09:27:190
194398699170,3cyclictest2055830-21kworker/u16:0+flush-0:4310:25:010
2649091160,2phc2sys0-21swapper/310:40:083
2649091160,2phc2sys0-21swapper/310:37:293
2649091160,1phc2sys0-21swapper/310:58:033
2649091160,1phc2sys0-21swapper/309:32:293
194398899165,6cyclictest0-21swapper/208:40:022
194398899161,8cyclictest0-21swapper/210:20:022
1943988991614,1cyclictest0-21swapper/209:10:022
1943988991614,1cyclictest0-21swapper/208:00:022
1943988991614,1cyclictest0-21swapper/207:20:012
1943988991613,1cyclictest0-21swapper/212:15:492
1943988991613,1cyclictest0-21swapper/211:58:102
1943988991613,1cyclictest0-21swapper/211:58:102
1943988991613,1cyclictest0-21swapper/210:33:122
1943988991613,1cyclictest0-21swapper/210:33:122
1943988991613,1cyclictest0-21swapper/209:33:162
1943988991613,1cyclictest0-21swapper/208:35:012
1943988991613,1cyclictest0-21swapper/207:35:022
1943988991613,1cyclictest0-21swapper/207:30:012
194398799167,4cyclictest0-21swapper/111:03:091
194398799167,2cyclictest491rcuog/212:00:451
194398799161,4cyclictest134050irq/121-eno110:25:481
1943987991614,1cyclictest2391722-21kthreadcore11:58:101
1943987991614,1cyclictest2391722-21kthreadcore11:58:101
1943987991613,2cyclictest2244210-21systemd-run10:35:011
1943987991613,2cyclictest2244210-21systemd-run10:35:011
1943987991613,2cyclictest2100723-21/usr/sbin/munin09:15:001
1943987991613,2cyclictest2057426-21kthreadcore08:43:111
1943987991613,2cyclictest1988772-21systemd-run07:45:021
1943987991613,2cyclictest1288-1atopacctd09:58:121
1943987991612,3cyclictest2363817-21if_enp1s0.811:43:061
1943987991612,3cyclictest2136532-21kworker/u16:3+nfsiod09:49:321
1943987991612,3cyclictest2034449-21kthreadcore08:23:111
1943987991610,2cyclictest134050irq/121-eno110:01:501
194398699167,4cyclictest0-21swapper/010:38:150
194398699162,2cyclictest2450642-21awk12:30:010
1943986991614,1cyclictest1994807-21systemd-run07:50:020
1943986991613,2cyclictest2258725-21kthreadcore10:43:110
1943986991613,2cyclictest2091830-21diskmemload11:14:020
194398699161,10cyclictest2105861-21tail09:18:120
2649091154,2phc2sys0-21swapper/307:48:013
2649091151,2phc2sys0-21swapper/311:35:543
2649091150,4phc2sys0-21swapper/307:08:023
2649091150,2phc2sys0-21swapper/309:36:483
2649091150,2phc2sys0-21swapper/308:40:033
194398899152,8cyclictest0-21swapper/207:40:022
1943988991513,1cyclictest0-21swapper/211:35:012
1943988991513,1cyclictest0-21swapper/210:47:082
1943988991512,1cyclictest0-21swapper/212:28:072
1943988991512,1cyclictest0-21swapper/210:35:302
1943988991512,1cyclictest0-21swapper/210:23:112
1943988991511,2cyclictest0-21swapper/210:02:242
1943988991511,2cyclictest0-21swapper/209:18:102
194398799154,6cyclictest2264386-21kworker/u16:2+xprtiod11:26:141
1943987991512,2cyclictest1288-1atopacctd07:38:071
1943987991512,2cyclictest0-21swapper/107:35:011
1943987991511,3cyclictest2370142-21kworker/u16:0+nfsiod12:15:071
1943987991511,3cyclictest2258879-21kthreadcore10:43:111
1943987991511,3cyclictest2220165-21fschecks_count10:23:081
1943987991511,3cyclictest2213354-21kthreadcore10:18:111
1943987991511,3cyclictest1288-1atopacctd08:38:161
1943987991511,1cyclictest134050irq/121-eno112:37:511
1943987991510,1cyclictest1109-21hwrng11:25:011
194398699159,5cyclictest2280553-21kworker/u16:1-nfsiod11:26:210
194398699159,1cyclictest2280553-21kworker/u16:1+rpciod11:07:380
194398699156,4cyclictest0-21swapper/012:15:020
1943986991513,1cyclictest29021-21rtkit-daemon08:13:420
1943986991512,2cyclictest29021-21rtkit-daemon08:17:350
1943986991512,2cyclictest2384853-21kthreadcore11:53:110
1943986991512,2cyclictest2166944-21kernelversion09:53:090
1943986991512,2cyclictest2092114-21/usr/sbin/munin09:10:020
1943986991512,2cyclictest2007060-21sh08:00:010
1943986991512,2cyclictest1981258-21kthreadcore07:38:130
1943986991512,2cyclictest1976513-21latency_hist07:35:010
1943986991512,2cyclictest1946980-21kthreadcore07:13:120
1943986991512,2cyclictest1-21systemd07:18:150
1943986991511,3cyclictest2136532-21kworker/u16:3+nfsiod09:35:450
1943986991511,3cyclictest2100855-21kworker/u16:1+nfsiod09:31:450
2649091140,4phc2sys0-21swapper/311:31:463
2649091140,2phc2sys0-21swapper/311:21:593
2649091140,2phc2sys0-21swapper/310:48:433
2649091140,2phc2sys0-21swapper/310:34:413
2649091140,2phc2sys0-21swapper/310:34:413
2649091140,2phc2sys0-21swapper/310:26:243
2649091140,2phc2sys0-21swapper/310:06:583
2649091140,2phc2sys0-21swapper/307:28:073
24355442140,2sleep30-21swapper/312:23:063
1943988991412,1cyclictest0-21swapper/211:55:032
194398899141,1cyclictest0-21swapper/207:21:232
1943988991411,1cyclictest0-21swapper/212:35:012
1943988991411,1cyclictest0-21swapper/212:05:432
1943988991411,1cyclictest0-21swapper/211:05:012
1943988991411,1cyclictest0-21swapper/210:41:022
1943988991411,1cyclictest0-21swapper/210:13:112
1943988991411,1cyclictest0-21swapper/209:43:052
1943988991411,1cyclictest0-21swapper/207:53:122
1943988991411,1cyclictest0-21swapper/207:43:142
1943988991410,2cyclictest0-21swapper/210:08:142
194398799147,5cyclictest257-21systemd-journal08:30:001
194398799146,1cyclictest501rcuop/207:28:041
194398799143,3cyclictest2006658-21readlink08:00:001
1943987991411,2cyclictest2411937-21kthreadcore12:08:111
1943987991411,2cyclictest2154441-21sh09:45:011
1943987991411,2cyclictest2031392-21systemd-run08:20:021
1943987991411,2cyclictest1995643-21sh07:53:071
1943987991411,2cyclictest1943984-21cyclictest07:15:031
1943987991411,2cyclictest0-21swapper/111:10:011
1943987991410,3cyclictest2310378-21irqcore11:13:101
1943987991410,1cyclictest134050irq/121-eno111:47:521
194398699146,7cyclictest0-21swapper/010:26:120
194398699145,3cyclictest2018950-21sshd08:09:010
1943986991411,2cyclictest2085868-21munin-plugin-st09:05:010
1943986991411,2cyclictest2067173-21switchtime08:48:150
1943986991411,2cyclictest2052031-21kthreadcore08:38:100
1943986991411,2cyclictest1-21systemd07:26:010
1943986991411,2cyclictest0-21swapper/007:45:010
194398699140,13cyclictest0-21swapper/007:51:060
2649091133,2phc2sys0-21swapper/311:28:123
2649091130,3phc2sys0-21swapper/307:18:043
2649091130,2phc2sys0-21swapper/311:07:453
2649091130,2phc2sys0-21swapper/309:56:343
21224712130,4sleep30-21swapper/309:28:123
194398899139,2cyclictest0-21swapper/208:13:072
194398899132,6cyclictest0-21swapper/208:03:052
194398899131,1cyclictest0-21swapper/208:43:112
194398899131,1cyclictest0-21swapper/208:23:112
1943988991311,1cyclictest0-21swapper/211:10:542
1943988991311,1cyclictest0-21swapper/209:13:062
1943988991310,1cyclictest0-21swapper/209:03:072
1943988991310,1cyclictest0-21swapper/208:28:122
194398899130,7cyclictest0-21swapper/207:48:022
194398899130,10cyclictest2031050-21chrt08:19:212
194398799138,4cyclictest2014124-21fschecks_time08:08:061
194398799132,6cyclictest2264386-21kworker/u16:2+xprtiod10:49:161
194398799131,2cyclictest191rcu_preempt10:40:021
1943987991310,2cyclictest2454032-21irqrtprio12:33:081
1943987991310,2cyclictest2087008-21fschecks_time09:08:071
1943987991310,2cyclictest2019625-21aten_repower_cu08:13:041
1943987991310,2cyclictest2008599-21irqrtprio08:03:101
194398699134,7cyclictest2009763-21tr08:03:110
1943986991310,2cyclictest2426396-21tr12:18:050
1943986991310,2cyclictest2045080-21kthreadcore08:33:100
1943986991310,2cyclictest2034936-21kthreadcore08:23:110
2649091121,3phc2sys0-21swapper/309:50:093
2649091120,2phc2sys0-21swapper/312:12:573
2649091120,2phc2sys0-21swapper/311:19:013
2649091120,2phc2sys0-21swapper/308:55:263
2649091120,2phc2sys0-21swapper/308:47:533
2649091120,2phc2sys0-21swapper/308:25:453
1943988991210,1cyclictest0-21swapper/209:48:102
194398799120,4cyclictest2016-21snmpd08:56:161
194398699129,2cyclictest0-21swapper/008:28:110
194398699125,5cyclictest1290-21dbus-daemon07:10:010
2649091113,3phc2sys0-21swapper/310:24:183
2649091111,3phc2sys0-21swapper/312:34:093
2649091111,3phc2sys0-21swapper/311:55:503
2649091111,3phc2sys0-21swapper/311:55:503
2649091111,2phc2sys0-21swapper/310:13:533
2649091111,2phc2sys0-21swapper/308:53:103
2649091111,2phc2sys0-21swapper/307:23:133
2649091110,4phc2sys0-21swapper/309:08:043
2649091110,2phc2sys0-21swapper/312:25:253
2649091110,2phc2sys0-21swapper/312:10:003
2649091110,2phc2sys0-21swapper/310:54:133
2649091110,2phc2sys0-21swapper/309:47:243
2649091110,2phc2sys0-21swapper/309:21:233
2649091110,2phc2sys0-21swapper/308:09:333
2649091110,2phc2sys0-21swapper/307:43:053
2649091110,2phc2sys0-21swapper/307:10:103
2649091110,1phc2sys0-21swapper/308:24:053
2649091110,1phc2sys0-21swapper/307:35:593
194398899119,1cyclictest0-21swapper/208:56:322
194398799119,1cyclictest1944155-21true07:10:021
2649091103,3phc2sys0-21swapper/309:18:063
2649091101,2phc2sys0-21swapper/311:00:393
2649091101,2phc2sys0-21swapper/310:03:033
2649091101,2phc2sys0-21swapper/308:31:463
2649091100,2phc2sys0-21swapper/312:35:053
2649091100,2phc2sys0-21swapper/311:52:253
2649091100,2phc2sys0-21swapper/311:40:073
2649091100,2phc2sys0-21swapper/311:11:133
2649091100,2phc2sys0-21swapper/309:11:213
2649091100,1phc2sys0-21swapper/307:55:113
194398899101,5cyclictest0-21swapper/207:10:022
264909191,2phc2sys0-21swapper/309:03:083
264909191,2phc2sys0-21swapper/307:33:113
264909190,3phc2sys0-21swapper/308:20:023
264909190,2phc2sys0-21swapper/308:38:033
264909190,2phc2sys0-21swapper/308:13:073
264909180,1phc2sys0-21swapper/307:50:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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