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2026-01-12 - 00:47
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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 Sun Jan 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178844021060,1sleep10-21swapper/108:33:061
199824021000,2sleep30-21swapper/310:43:013
20564792460,0sleep12056480-21/usr/sbin/munin11:13:091
19144602280,2sleep30-21swapper/309:55:003
1685593992522,2cyclictest1869449-21grep09:30:020
1685593992416,7cyclictest2004398-21kworker/u16:0+events_unbound10:50:010
1685594992320,2cyclictest2103382-21grep11:40:011
1685593992219,2cyclictest1691855-21systemctl07:15:010
1685594992118,2cyclictest1326-21systemd-logind09:40:021
168559399218,4cyclictest2085253-21kworker/u16:1-rpciod11:44:350
1685593992118,2cyclictest1288-1atopacctd10:35:010
1685593992110,4cyclictest2174076-21kthreadcore12:23:020
1685593992018,1cyclictest0-21swapper/012:30:020
1685593992011,5cyclictest2068645-21runrttasks11:21:420
1685593992010,5cyclictest0-21swapper/009:50:010
2902298190,3rtkit-daemon2018-21lldpd11:55:360
2649091191,2phc2sys0-21swapper/311:47:243
2649091190,2phc2sys0-21swapper/310:50:043
1685595991917,1cyclictest0-21swapper/209:35:022
1685595991915,2cyclictest0-21swapper/211:05:012
1685594991916,2cyclictest1954265-21kthreadcore10:18:061
1685594991915,2cyclictest1692211-21sh07:15:021
1685594991914,4cyclictest1743875-21sort07:58:011
1685593991913,5cyclictest2195344-21kthreadcore12:33:060
1685593991913,5cyclictest2066544-21runrttasks11:19:050
168559399191,2cyclictest0-21swapper/009:51:300
1685593991912,6cyclictest1288-1atopacctd10:28:060
2902298180,14rtkit-daemon1757228-21tr08:08:050
2649091180,2phc2sys0-21swapper/312:20:143
2649091180,2phc2sys0-21swapper/309:47:073
2649091180,1phc2sys0-21swapper/310:37:053
21608112180,1sleep02160812-21expr12:13:000
168559599181,7cyclictest0-21swapper/209:40:022
1685595991816,1cyclictest0-21swapper/207:10:012
1685595991815,1cyclictest0-21swapper/210:53:002
1685595991815,1cyclictest0-21swapper/207:50:022
1685595991814,2cyclictest0-21swapper/210:22:202
168559499189,4cyclictest0-21swapper/112:30:011
168559499186,7cyclictest1784987-21cron08:30:001
1685594991815,2cyclictest2031268-21cron11:00:001
1685594991810,3cyclictest0-21swapper/111:50:011
168559399189,8cyclictest0-21swapper/011:53:050
168559399189,5cyclictest1685590-21cyclictest09:42:570
168559399187,6cyclictest0-21swapper/009:38:060
168559399186,7cyclictest0-21swapper/009:17:590
1685593991816,1cyclictest1842197-21dump-pmu-power09:15:000
1685593991815,2cyclictest1833300-21dump-pmu-power09:10:000
1685593991815,2cyclictest1718506-21dump-pmu-power07:35:010
1685593991814,3cyclictest1727881-21kthreadcore07:43:060
1685593991814,3cyclictest1290-21dbus-daemon07:30:010
1685593991812,5cyclictest1685590-21cyclictest11:13:040
1685593991811,6cyclictest2015967-21cstates10:53:010
1685593991811,6cyclictest0-21swapper/010:20:020
1685593991810,4cyclictest2034956-21kthreadcore11:03:060
1685593991810,4cyclictest2029259-21kthreadcore10:58:060
2902298170,6rtkit-daemon281-21systemd-udevd09:59:450
2902298170,6rtkit-daemon281-21systemd-udevd09:59:450
2649091170,3phc2sys0-21swapper/310:48:203
2649091170,2phc2sys0-21swapper/312:16:533
2649091170,2phc2sys0-21swapper/310:31:433
1685595991714,1cyclictest0-21swapper/211:47:592
1685595991714,1cyclictest0-21swapper/211:13:052
1685595991714,1cyclictest0-21swapper/210:30:012
1685595991714,1cyclictest0-21swapper/209:00:012
1685595991713,2cyclictest0-21swapper/212:28:012
1685594991714,2cyclictest2124425-21cpuspeed_turbos11:53:001
1685594991714,2cyclictest2112397-21munin-run11:45:001
1685594991714,2cyclictest1941489-21ls10:10:001
1685594991714,2cyclictest1890535-21gltestperf09:43:021
1685594991714,2cyclictest1290-21dbus-daemon11:30:001
1685594991714,2cyclictest1290-21dbus-daemon09:55:001
1685594991714,2cyclictest1288-1atopacctd09:12:581
1685594991713,3cyclictest2090295-21kthreadcore11:33:041
1685594991710,5cyclictest0-21swapper/112:25:011
168559399179,4cyclictest2092731-21timerandwakeup11:33:100
168559399178,2cyclictest0-21swapper/011:08:030
168559399176,6cyclictest0-21swapper/010:15:010
1685593991714,2cyclictest1685590-21cyclictest08:52:580
1685593991714,2cyclictest1290-21dbus-daemon10:25:010
1685593991714,2cyclictest0-21swapper/010:45:010
1685593991711,5cyclictest1938826-21kthreadcore10:08:060
1685593991710,6cyclictest2023-21sshd10:00:190
2649091160,3phc2sys0-21swapper/311:17:593
2649091160,3phc2sys0-21swapper/309:58:293
2649091160,3phc2sys0-21swapper/309:58:293
2649091160,2phc2sys0-21swapper/311:26:393
2649091160,2phc2sys0-21swapper/309:34:463
1685595991613,1cyclictest0-21swapper/211:33:032
1685595991613,1cyclictest0-21swapper/210:35:002
1685595991613,1cyclictest0-21swapper/208:00:002
1685595991613,1cyclictest0-21swapper/207:15:012
1685595991612,2cyclictest0-21swapper/211:28:072
168559499168,3cyclictest0-21swapper/110:00:011
168559499168,3cyclictest0-21swapper/110:00:011
168559499161,6cyclictest257-21systemd-journal07:38:531
1685594991613,2cyclictest2197656-21systemd-run12:35:021
1685594991613,2cyclictest2043905-21kthreadcore11:08:061
1685594991613,2cyclictest1972170-21kthreadcore10:28:061
1685594991613,2cyclictest1815241-21systemd-run08:55:011
1685594991613,2cyclictest0-21swapper/107:35:011
1685594991612,3cyclictest0-21swapper/111:05:011
1685594991611,4cyclictest1288-1atopacctd10:13:051
1685594991611,3cyclictest1539010-21kworker/u16:1-nfsiod10:45:011
1685594991611,2cyclictest134050irq/121-eno112:09:321
168559399161,4cyclictest2096357-21ssh11:37:480
1685593991614,1cyclictest1990210-21kthreadcore10:38:040
1685593991614,1cyclictest1778940-21idleruntime-cro08:25:000
1685593991614,1cyclictest1754773-21wc08:05:000
1685593991613,2cyclictest2142908-21gltestperf12:03:030
1685593991613,2cyclictest1742824-21munin-plugin-st07:55:010
1685593991612,3cyclictest2123762-21kworker/u16:0+nfsiod12:07:500
1685593991610,5cyclictest2078496-21/usr/sbin/munin11:28:070
2649091151,2phc2sys0-21swapper/308:31:253
2649091150,2phc2sys0-21swapper/309:15:543
2649091150,1phc2sys0-21swapper/310:11:213
20592772150,2sleep20-21swapper/211:16:072
1685595991513,1cyclictest0-21swapper/207:25:012
1685595991512,1cyclictest0-21swapper/212:13:082
1685595991512,1cyclictest0-21swapper/212:07:592
1685595991512,1cyclictest0-21swapper/211:55:102
1685595991512,1cyclictest0-21swapper/211:40:012
1685595991512,1cyclictest0-21swapper/211:22:592
1685595991512,1cyclictest0-21swapper/210:03:052
1685595991512,1cyclictest0-21swapper/210:00:002
1685595991512,1cyclictest0-21swapper/210:00:002
1685595991512,1cyclictest0-21swapper/209:44:512
1685595991512,1cyclictest0-21swapper/208:43:062
1685595991512,1cyclictest0-21swapper/208:40:002
1685595991511,2cyclictest0-21swapper/210:13:052
1685595991511,2cyclictest0-21swapper/208:48:042
168559599150,13cyclictest0-21swapper/212:02:582
168559499156,4cyclictest0-21swapper/111:18:061
168559499153,5cyclictest0-21swapper/110:52:591
1685594991512,2cyclictest2147111-21pmu-power12:03:101
1685594991512,2cyclictest2135759-21cut11:58:061
1685594991512,2cyclictest1968461-21cron10:25:011
1685594991512,2cyclictest1854264-21head09:23:031
1685594991512,2cyclictest0-21swapper/108:15:011
1685594991511,3cyclictest1982180-21kthreadcore10:33:041
1685594991511,3cyclictest1701960-21kthreadcore07:23:041
168559499150,5cyclictest2165000-21grep12:13:071
168559399159,5cyclictest1803783-21aten2.4-expect08:47:590
168559399157,4cyclictest1731222-21tail07:47:590
1685593991513,1cyclictest29021-21rtkit-daemon09:32:590
1685593991513,1cyclictest1791303-21cut08:35:020
1685593991512,2cyclictest2200689-21irqcore12:38:040
1685593991512,2cyclictest2121921-21gpgconf11:50:010
1685593991512,2cyclictest1856865-21kthreadcore09:23:070
1685593991512,2cyclictest1724671-21sh07:40:000
1685593991512,2cyclictest1700141-21sendmail-msp07:20:000
1685593991512,2cyclictest1326-21systemd-logind08:40:000
2649091141,2phc2sys0-21swapper/310:25:353
2649091140,3phc2sys0-21swapper/310:17:203
2649091140,2phc2sys0-21swapper/311:36:543
168559599141,5cyclictest0-21swapper/210:10:022
168559599141,3cyclictest0-21swapper/210:20:022
168559599141,3cyclictest0-21swapper/209:50:022
1685595991411,1cyclictest0-21swapper/212:22:582
1685595991411,1cyclictest0-21swapper/211:45:012
1685595991411,1cyclictest0-21swapper/210:43:012
1685595991411,1cyclictest0-21swapper/209:53:052
1685595991411,1cyclictest0-21swapper/207:30:022
168559499148,5cyclictest2040599-21kworker/u16:2-rpciod11:20:031
168559499148,2cyclictest1833277-21diskmemload10:04:311
1685594991412,1cyclictest1685590-21cyclictest12:17:571
1685594991411,2cyclictest2203263-21kthreadcore12:38:061
1685594991411,2cyclictest1826054-21kthreadcore09:03:071
1685594991411,2cyclictest1797142-21systemd-run08:40:001
1685594991411,2cyclictest1779094-21runrttasks08:25:011
1685594991411,2cyclictest1754915-21systemd-run08:05:011
1685594991411,2cyclictest1288-1atopacctd10:37:591
1685594991411,2cyclictest0-21swapper/109:35:011
1685594991411,2cyclictest0-21swapper/109:10:011
1685594991410,3cyclictest1901943-21kthreadcore09:48:061
1685594991410,3cyclictest1727395-21kthreadcore07:43:061
1685594991410,3cyclictest1695578-21irqcore07:18:051
168559399147,5cyclictest1761233-21sshd08:12:130
168559399145,5cyclictest0-21swapper/008:42:070
1685593991411,2cyclictest2170420-21systemctl12:20:000
1685593991411,2cyclictest1816579-21if_enp1s0.808:58:030
1685593991411,2cyclictest1770176-21kthreadcore08:18:070
2649091135,1phc2sys0-21swapper/312:28:033
2649091130,2phc2sys0-21swapper/311:31:183
21483262130,4sleep30-21swapper/312:04:183
20409392130,4sleep30-21swapper/311:05:393
168559599139,1cyclictest0-21swapper/208:52:272
1685595991311,1cyclictest0-21swapper/210:57:582
1685595991311,1cyclictest0-21swapper/209:18:062
1685595991311,1cyclictest0-21swapper/207:33:022
1685595991310,1cyclictest0-21swapper/212:38:072
1685595991310,1cyclictest0-21swapper/212:19:252
1685595991310,1cyclictest0-21swapper/210:48:062
1685595991310,1cyclictest0-21swapper/210:38:052
1685595991310,1cyclictest0-21swapper/209:28:002
1685595991310,1cyclictest0-21swapper/208:28:012
1685595991310,1cyclictest0-21swapper/208:20:022
1685595991310,1cyclictest0-21swapper/208:03:092
1685595991310,1cyclictest0-21swapper/207:20:022
168559599130,6cyclictest0-21swapper/211:52:582
168559499139,3cyclictest1851363-21systemctl09:20:011
168559499137,3cyclictest1539010-21kworker/u16:1-ext4-rsv-conversion08:10:021
1685594991310,2cyclictest2007627-21irqcore10:48:041
1685594991310,2cyclictest1863053-21sh09:27:591
1685594991310,2cyclictest1817048-21kthreadcore08:58:051
1685594991310,2cyclictest1801673-21kthreadcore08:43:061
1685594991310,2cyclictest1771885-21kthreadcore08:18:081
1685594991310,2cyclictest1739950-21kthreadcore07:53:061
1685594991310,2cyclictest1710529-21kthreadcore07:28:071
2649091120,2phc2sys0-21swapper/309:22:593
2649091120,2phc2sys0-21swapper/307:32:583
2649091120,1phc2sys0-21swapper/311:10:123
168559599129,1cyclictest0-21swapper/211:06:352
168559599129,1cyclictest0-21swapper/209:10:532
168559599129,1cyclictest0-21swapper/208:33:092
168559599129,1cyclictest0-21swapper/208:13:052
168559599128,2cyclictest0-21swapper/209:10:012
1685595991210,1cyclictest0-21swapper/212:32:572
1685595991210,1cyclictest0-21swapper/209:05:012
1685595991210,1cyclictest0-21swapper/208:23:022
1685595991210,1cyclictest0-21swapper/207:55:022
1685595991210,1cyclictest0-21swapper/207:38:032
168559499125,5cyclictest257-21systemd-journal08:50:001
168559399129,2cyclictest1743255-21aten_repower_cu07:57:580
168559399129,2cyclictest1685774-21latency_hist07:10:010
168559399129,2cyclictest1685590-21cyclictest08:28:060
168559399122,3cyclictest16-21ksoftirqd/009:00:100
168559399120,3cyclictest0-21swapper/007:21:550
2649091112,1phc2sys0-21swapper/308:10:013
2649091111,3phc2sys0-21swapper/309:45:003
2649091110,3phc2sys0-21swapper/311:52:373
2649091110,2phc2sys0-21swapper/312:11:443
2649091110,2phc2sys0-21swapper/311:58:383
2649091110,2phc2sys0-21swapper/310:23:033
2649091110,2phc2sys0-21swapper/308:52:583
2649091110,2phc2sys0-21swapper/308:40:153
2649091110,2phc2sys0-21swapper/308:26:153
2649091110,2phc2sys0-21swapper/308:11:133
2649091110,2phc2sys0-21swapper/307:22:573
2649091110,1phc2sys0-21swapper/312:06:503
2649091110,1phc2sys0-21swapper/307:26:533
2649091110,1phc2sys0-21swapper/307:14:513
168559599119,1cyclictest0-21swapper/209:23:102
168559599119,1cyclictest0-21swapper/208:05:202
168559599118,1cyclictest0-21swapper/207:40:462
168559499118,2cyclictest1288-1atopacctd07:47:131
168559499115,4cyclictest0-21swapper/107:10:011
2649091104,2phc2sys0-21swapper/307:38:023
2649091103,2phc2sys0-21swapper/308:57:593
2649091101,3phc2sys0-21swapper/310:57:013
2649091101,3phc2sys0-21swapper/310:08:403
2649091101,2phc2sys0-21swapper/312:36:493
2649091101,2phc2sys0-21swapper/312:30:443
2649091101,2phc2sys0-21swapper/311:21:263
2649091101,2phc2sys0-21swapper/310:00:063
2649091100,2phc2sys0-21swapper/311:41:233
2649091100,2phc2sys0-21swapper/311:02:023
2649091100,2phc2sys0-21swapper/309:37:583
2649091100,2phc2sys0-21swapper/309:26:283
2649091100,2phc2sys0-21swapper/309:11:453
2649091100,2phc2sys0-21swapper/309:07:563
2649091100,2phc2sys0-21swapper/307:51:023
264909191,3phc2sys0-21swapper/309:02:593
264909190,2phc2sys0-21swapper/308:48:013
264909190,2phc2sys0-21swapper/308:38:023
264909190,2phc2sys0-21swapper/308:18:033
264909190,2phc2sys0-21swapper/308:03:123
264909190,2phc2sys0-21swapper/307:58:073
264909190,2phc2sys0-21swapper/307:45:453
264909190,2phc2sys0-21swapper/307:40:243
264909190,2phc2sys0-21swapper/307:15:033
264909190,2phc2sys0-21swapper/307:08:023
264909181,2phc2sys0-21swapper/308:21:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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