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2026-01-09 - 23:54
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Fri Jan 09, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226699321070,2sleep30-21swapper/312:03:113
22775802900,3sleep30-21swapper/312:10:003
18576792720,1sleep10-21swapper/107:53:011
1806360992724,2cyclictest1812479-21grep07:15:011
1806359992719,7cyclictest1286-21avahi-daemon09:20:020
18598542260,2sleep30-21swapper/307:53:073
1806359992619,6cyclictest2002050-21cpuspeed_turbos09:38:020
1806360992313,3cyclictest1997620-21grep09:33:111
180635999238,5cyclictest2298959-21sed12:23:060
1806361992219,1cyclictest0-21swapper/209:13:022
180635999226,10cyclictest2283141-21tr12:13:080
1806359992216,2cyclictest134050irq/121-eno110:33:080
2902298210,3rtkit-daemon4114978-21snmpd09:41:411
2649091211,2phc2sys0-21swapper/310:27:103
1806361992118,1cyclictest0-21swapper/211:50:012
1806360992118,2cyclictest2196112-21gpgconf11:25:011
1806359992115,5cyclictest2040940-21kthreadcore09:58:070
180635999210,7cyclictest2061213-21ssh10:09:220
1806360992019,1cyclictest0-21swapper/110:18:001
1806360992017,2cyclictest1942088-21cut09:00:001
1806360992015,3cyclictest2084638-21kthreadcore10:23:081
180635999206,9cyclictest2183325-21cut11:18:080
180635999203,9cyclictest1991646-1ssh09:31:130
1806359992016,1cyclictest1954146-21diskmemload11:38:010
1806359992014,2cyclictest134050irq/121-eno112:03:070
1806359992013,6cyclictest2306025-21runrttasks12:26:580
1806359992012,4cyclictest2011998-21kthreadcore09:43:070
1806359992011,5cyclictest2165868-21kthreadcore11:08:090
180635999200,1cyclictest0-21swapper/011:50:190
2649091190,2phc2sys0-21swapper/310:35:403
1806361991916,1cyclictest0-21swapper/209:34:552
1806360991916,2cyclictest2106355-21systemd-run10:35:011
180635999197,7cyclictest2195178-21diskmemload11:23:510
180635999197,7cyclictest1962698-21diskmemload09:14:190
180635999195,7cyclictest1290-21dbus-daemon09:30:010
180635999193,7cyclictest1942653-21telnet09:03:010
180635999193,5cyclictest2108597-21aten2.4-expect10:38:000
1806359991916,2cyclictest1905614-21gpgconf08:30:010
1806359991916,2cyclictest1844825-21awk07:40:010
1806359991916,2cyclictest1326-21systemd-logind11:35:010
1806359991914,1cyclictest134050irq/121-eno110:23:130
1806359991912,6cyclictest2092988-21kthreadcore10:28:070
1806359991912,6cyclictest2023-21sshd10:54:420
1806359991912,6cyclictest0-21swapper/012:33:010
1806359991911,7cyclictest2120270-21kthreadcore10:43:070
1806359991911,7cyclictest0-21swapper/010:48:000
1806359991911,4cyclictest2225795-21aten_repower_cu11:43:010
1806359991911,4cyclictest1948788-21aten2.4-expect09:08:010
1806359991911,4cyclictest1827364-21aten2.4-expect07:28:020
2649091181,2phc2sys0-21swapper/310:00:203
2649091180,2phc2sys0-21swapper/312:33:063
2649091180,2phc2sys0-21swapper/312:12:023
2649091180,2phc2sys0-21swapper/310:50:143
1806361991815,1cyclictest0-21swapper/211:08:092
1806361991815,1cyclictest0-21swapper/210:18:132
1806361991815,1cyclictest0-21swapper/209:18:122
1806361991814,2cyclictest0-21swapper/209:30:012
1806361991812,1cyclictest0-21swapper/207:11:452
1806360991815,2cyclictest2026172-21/usr/sbin/munin09:50:011
1806360991815,2cyclictest1329-21rs:main1
1806360991814,3cyclictest2137985-21kthreadcore10:53:081
180635999189,5cyclictest2235276-21cut11:48:030
180635999187,7cyclictest2075133-21cut10:18:070
180635999184,10cyclictest2066596-21cut10:13:070
180635999184,10cyclictest2066596-21cut10:13:070
180635999183,7cyclictest1999611-21kworker/u16:0+xprtiod10:04:190
1806359991815,2cyclictest0-21swapper/009:25:000
1806359991814,3cyclictest2020644-21kthreadcore09:48:050
1806359991811,6cyclictest1857634-21aten2.4-expect07:53:000
1806359991810,4cyclictest1851664-21aten2.4-expect07:48:010
2902298170,2rtkit-daemon0-21swapper/111:02:581
2902298170,2rtkit-daemon0-21swapper/109:23:251
2649091170,4phc2sys0-21swapper/310:06:383
2649091170,3phc2sys0-21swapper/309:58:363
2649091170,2phc2sys0-21swapper/311:50:343
2649091170,2phc2sys0-21swapper/311:45:133
2649091170,2phc2sys0-21swapper/309:50:033
23128452170,2sleep30-21swapper/312:29:203
20343372170,2sleep20-21swapper/209:54:092
180636199172,3cyclictest0-21swapper/211:40:012
1806360991714,2cyclictest1963373-21latency_hist09:15:011
1806360991714,2cyclictest1950576-21kthreadcore09:08:071
1806360991712,3cyclictest1290-21dbus-daemon11:20:011
180636099171,1cyclictest1954146-21diskmemload12:18:111
1806360991710,1cyclictest2241532-21kworker/1:0+events_freezable12:08:321
180635999178,4cyclictest2324619-21aten2.4-expect12:38:000
180635999177,6cyclictest2198713-21tail11:28:020
180635999177,6cyclictest2198713-21tail11:28:020
180635999177,6cyclictest2172675-21ssh11:13:060
180635999177,1cyclictest134050irq/121-eno112:08:000
180635999176,6cyclictest2252364-21diskmemload11:57:140
180635999171,6cyclictest171ktimers/010:55:470
180635999171,5cyclictest1806893-21aten2.4-expect07:13:020
1806359991714,2cyclictest1913664-21kthreadcore08:38:050
1806359991714,2cyclictest1884005-21kthreadcore08:13:070
1806359991714,2cyclictest1866398-21kthreadcore07:58:090
1806359991714,2cyclictest1866398-21kthreadcore07:58:090
1806359991714,2cyclictest1824691-21kthreadcore07:23:070
2649091161,3phc2sys0-21swapper/310:58:543
2649091160,2phc2sys0-21swapper/312:16:223
180636199161,6cyclictest0-21swapper/210:50:012
1806361991614,1cyclictest0-21swapper/212:30:012
1806361991614,1cyclictest0-21swapper/212:10:012
1806361991614,1cyclictest0-21swapper/209:25:002
1806361991614,1cyclictest0-21swapper/208:30:022
1806361991613,1cyclictest0-21swapper/212:18:102
1806361991613,1cyclictest0-21swapper/211:42:502
1806361991613,1cyclictest0-21swapper/211:33:142
1806361991613,1cyclictest0-21swapper/211:26:422
1806361991613,1cyclictest0-21swapper/211:26:422
1806361991613,1cyclictest0-21swapper/211:18:082
1806361991613,1cyclictest0-21swapper/211:13:052
1806361991613,1cyclictest0-21swapper/210:44:212
1806361991613,1cyclictest0-21swapper/208:15:002
180636099168,1cyclictest134050irq/121-eno111:07:471
1806360991613,2cyclictest2064620-21fschecks_time10:13:041
1806360991613,2cyclictest2064620-21fschecks_time10:13:041
1806360991613,2cyclictest1888548-21head08:18:051
1806360991613,2cyclictest1806357-21cyclictest12:30:591
1806360991613,2cyclictest1286-21avahi-daemon12:30:021
1806360991613,2cyclictest1-21systemd07:33:111
1806360991612,3cyclictest2324888-21tr12:38:011
1806360991612,3cyclictest1969369-21kthreadcore09:18:071
1806360991612,3cyclictest1327-21in:imuxsock07:45:011
1806360991611,3cyclictest2131481-21missed_timers10:48:091
1806360991610,2cyclictest134050irq/121-eno107:23:431
180635999167,6cyclictest2157651-21kthreadcore11:03:080
180635999166,3cyclictest1894239-21grep08:23:020
180635999165,7cyclictest2289082-21grep12:18:020
1806359991613,2cyclictest1930654-21aten_repower_vo08:53:000
1806359991613,2cyclictest1911839-21wc08:35:010
1806359991613,2cyclictest0-21swapper/007:20:000
1806359991612,3cyclictest2028320-21tail09:53:010
2649091151,3phc2sys0-21swapper/309:47:583
2649091150,2phc2sys0-21swapper/310:24:283
2649091150,2phc2sys0-21swapper/308:14:073
2649091150,2phc2sys0-21swapper/307:28:083
2649091150,1phc2sys0-21swapper/312:37:553
1806361991513,1cyclictest0-21swapper/210:21:482
1806361991513,1cyclictest0-21swapper/209:44:262
1806361991513,1cyclictest0-21swapper/209:40:022
1806361991513,1cyclictest0-21swapper/207:45:022
1806361991512,1cyclictest0-21swapper/212:23:042
1806361991512,1cyclictest0-21swapper/210:58:092
1806361991512,1cyclictest0-21swapper/210:28:082
1806361991512,1cyclictest0-21swapper/208:18:382
1806361991511,2cyclictest0-21swapper/210:13:082
1806361991511,2cyclictest0-21swapper/210:13:082
180636199150,8cyclictest0-21swapper/210:38:032
180636099157,1cyclictest134050irq/121-eno111:43:131
180636099156,2cyclictest134050irq/121-eno108:11:241
180636099151,6cyclictest4114978-21snmpd11:25:451
180636099151,6cyclictest4114978-21snmpd11:25:451
1806360991513,1cyclictest2115382-21kworker/u16:2-rpciod11:37:571
1806360991512,2cyclictest2259557-21sendmail12:00:011
1806360991512,2cyclictest2235433-21gltestperf11:48:041
1806360991512,2cyclictest2118403-21sort10:43:041
1806360991512,2cyclictest2109676-21irqrtprio10:38:051
1806360991512,2cyclictest2092144-21kthreadcore10:28:071
1806360991512,2cyclictest1946849-21kthreadcore09:03:091
1806360991512,2cyclictest1900947-21tr08:28:061
1806360991512,2cyclictest1899453-21grep08:25:001
1806360991512,2cyclictest1877045-21kthreadcore08:08:051
1806360991512,2cyclictest1864282-21fschecks_time07:58:051
1806360991512,2cyclictest1864282-21fschecks_time07:58:051
1806360991512,2cyclictest1806357-21cyclictest08:48:131
1806360991512,2cyclictest1806357-21cyclictest08:48:131
1806360991512,2cyclictest1288-1atopacctd10:07:451
1806360991511,3cyclictest2265792-21kthreadcore12:03:071
1806360991511,3cyclictest1919639-21irqrtprio08:43:061
1806360991511,3cyclictest1290-21dbus-daemon09:40:011
1806360991510,3cyclictest0-21swapper/110:00:011
180635999156,5cyclictest1833407-21cut07:33:010
180635999154,9cyclictest257-21systemd-journal08:50:000
180635999154,9cyclictest257-21systemd-journal08:50:000
1806359991513,1cyclictest0-21swapper/008:05:020
1806359991512,2cyclictest1889161-21kthreadcore08:18:070
1806359991512,2cyclictest1877045-21kthreadcore08:08:050
1806359991512,2cyclictest1850199-21pmu-power07:43:100
2649091145,1phc2sys0-21swapper/311:11:183
2649091140,3phc2sys0-21swapper/309:36:333
2649091140,2phc2sys0-21swapper/310:32:323
2649091140,2phc2sys0-21swapper/309:06:463
180636199141,4cyclictest0-21swapper/211:23:002
1806361991412,1cyclictest0-21swapper/212:38:072
1806361991412,1cyclictest0-21swapper/210:05:432
1806361991412,1cyclictest0-21swapper/210:05:022
1806361991412,1cyclictest0-21swapper/208:33:102
1806361991412,1cyclictest0-21swapper/208:08:012
1806361991412,1cyclictest0-21swapper/207:20:012
1806361991411,1cyclictest0-21swapper/212:33:092
1806361991411,1cyclictest0-21swapper/212:03:082
1806361991411,1cyclictest0-21swapper/211:53:102
1806361991411,1cyclictest0-21swapper/211:03:062
1806361991411,1cyclictest0-21swapper/208:51:452
1806361991411,1cyclictest0-21swapper/208:38:022
1806361991411,1cyclictest0-21swapper/208:05:022
1806361991411,1cyclictest0-21swapper/207:58:092
1806361991411,1cyclictest0-21swapper/207:58:092
1806361991411,1cyclictest0-21swapper/207:53:032
180636099147,3cyclictest134050irq/121-eno111:50:161
180636099147,2cyclictest134050irq/121-eno108:53:031
1806360991411,2cyclictest2147404-21kthreadcore10:58:081
1806360991411,2cyclictest2047963-21kthreadcore10:03:061
1806360991411,2cyclictest1855712-21kthreadcore07:48:081
1806360991411,2cyclictest1806357-21cyclictest09:52:391
1806360991411,2cyclictest1326-21systemd-logind08:35:021
1806360991411,2cyclictest1288-1atopacctd11:31:141
1806360991410,3cyclictest2300184-21kthreadcore12:23:071
1806360991410,3cyclictest1843061-21kthreadcore07:38:091
1806360991410,2cyclictest1820866-21latency_hist07:20:011
1806359991412,1cyclictest1937323-21idleruntime08:58:050
1806359991411,2cyclictest1918425-21aten_repower_cu08:43:010
1806359991411,2cyclictest1806473-21systemd-run07:10:010
2649091130,4phc2sys0-21swapper/308:18:013
2649091130,3phc2sys0-21swapper/312:22:503
2649091130,3phc2sys0-21swapper/311:36:053
2649091130,2phc2sys0-21swapper/311:34:393
2649091130,2phc2sys0-21swapper/310:49:063
2649091130,2phc2sys0-21swapper/309:42:003
2649091130,1phc2sys0-21swapper/311:03:033
2649091130,1phc2sys0-21swapper/309:30:123
180636199139,2cyclictest0-21swapper/210:53:092
180636199139,2cyclictest0-21swapper/208:48:052
180636199139,2cyclictest0-21swapper/208:48:052
180636199131,3cyclictest0-21swapper/209:10:012
1806361991311,1cyclictest0-21swapper/209:48:062
1806361991311,1cyclictest0-21swapper/207:46:252
1806361991311,1cyclictest0-21swapper/207:23:062
1806361991310,1cyclictest0-21swapper/210:33:022
1806361991310,1cyclictest0-21swapper/209:03:092
1806361991310,1cyclictest0-21swapper/208:55:422
1806361991310,1cyclictest0-21swapper/208:43:052
1806361991310,1cyclictest0-21swapper/208:23:082
1806361991310,1cyclictest0-21swapper/207:33:072
180636099139,3cyclictest1986594-21kthreadcore09:28:091
1806360991311,1cyclictest2170203-21rm11:11:201
1806360991310,2cyclictest2250803-21kworker/u16:1-rpciod12:10:051
1806360991310,2cyclictest1827833-21fschecks_count07:28:041
2649091121,4phc2sys0-21swapper/307:33:003
2649091121,3phc2sys0-21swapper/308:07:593
2649091120,3phc2sys0-21swapper/311:55:293
2649091120,3phc2sys0-21swapper/310:18:003
2649091120,2phc2sys0-21swapper/310:41:023
2649091120,2phc2sys0-21swapper/307:13:013
19547602120,2sleep30-21swapper/309:10:303
19420282120,5sleep30-21swapper/309:00:003
180636199129,1cyclictest0-21swapper/207:38:082
180636199129,1cyclictest0-21swapper/207:26:562
180636199129,1cyclictest0-21swapper/207:10:002
1806361991210,1cyclictest0-21swapper/212:13:092
1806361991210,1cyclictest0-21swapper/211:58:042
180636199120,10cyclictest0-21swapper/209:57:422
180636099128,2cyclictest1740135-21kworker/u16:3-events_unbound07:10:011
2649091112,2phc2sys0-21swapper/311:20:043
2649091111,2phc2sys0-21swapper/309:28:183
2649091111,2phc2sys0-21swapper/307:10:013
2649091110,2phc2sys0-21swapper/311:27:493
2649091110,2phc2sys0-21swapper/311:27:493
2649091110,1phc2sys0-21swapper/308:03:383
180636099114,5cyclictest1914280-21cut08:38:041
2649091101,2phc2sys0-21swapper/310:10:473
2649091101,2phc2sys0-21swapper/310:10:473
2649091101,2phc2sys0-21swapper/308:23:063
2649091101,2phc2sys0-21swapper/307:58:093
2649091101,2phc2sys0-21swapper/307:58:093
2649091100,3phc2sys0-21swapper/308:48:063
2649091100,3phc2sys0-21swapper/308:48:063
2649091100,3phc2sys0-21swapper/308:39:563
2649091100,2phc2sys0-21swapper/311:40:083
2649091100,2phc2sys0-21swapper/311:15:073
2649091100,2phc2sys0-21swapper/311:08:503
2649091100,2phc2sys0-21swapper/309:21:533
2649091100,2phc2sys0-21swapper/307:43:073
2649091100,1phc2sys0-21swapper/309:02:333
2649091100,1phc2sys0-21swapper/308:52:273
264909191,3phc2sys0-21swapper/308:30:023
264909191,3phc2sys0-21swapper/307:23:063
264909190,2phc2sys0-21swapper/309:15:113
264909190,2phc2sys0-21swapper/308:43:013
264909190,2phc2sys0-21swapper/308:33:083
264909190,2phc2sys0-21swapper/307:48:003
264909190,2phc2sys0-21swapper/307:38:063
264909190,2phc2sys0-21swapper/307:18:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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