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2026-06-21 - 12:00
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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 Jun 21, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
180063221060,2sleep30-21swapper/320:10:133
202865821030,2sleep12028429-21ssh22:55:141
21798992570,1sleep02179897-21ssh00:39:180
1723437992517,7cyclictest1993818-21kthreadcore22:30:160
1723438992411,6cyclictest2099401-21munin-run23:45:001
1723438992320,2cyclictest660-21dbus-daemon23:30:011
1723438992313,3cyclictest2010574-21runrttasks22:42:261
1723438992311,3cyclictest0-21swapper/123:45:131
1723439992219,1cyclictest0-21swapper/219:15:012
1723438992210,3cyclictest0-21swapper/122:20:021
1723437992219,2cyclictest1744081-21systemd-run19:25:010
1723437992217,4cyclictest1946283-21sort22:00:100
1723437992213,5cyclictest1887833-21sed21:20:130
1723437992212,6cyclictest0-21swapper/022:30:010
1723437992211,6cyclictest0-21swapper/021:30:170
3153791210,2phc2sys0-21swapper/322:00:073
1723439992119,1cyclictest0-21swapper/219:20:012
1723439992118,1cyclictest0-21swapper/222:05:002
1723439992115,2cyclictest0-21swapper/200:15:062
1723438992117,3cyclictest1997922-21idleruntime22:35:101
1723438992117,3cyclictest1849251-21kthreadcore20:50:131
1723438992116,4cyclictest1781685-21fschecks_count19:55:101
1723438992115,2cyclictest1898022-21kthreadcore21:25:161
1723438992113,3cyclictest1982887-21cstates22:25:081
1723438992110,3cyclictest0-21swapper/123:05:131
1723438992110,3cyclictest0-21swapper/121:45:021
1723437992118,2cyclictest2007295-21kthreadcore22:40:140
1723437992118,2cyclictest1960047-21apt-key22:10:010
18963202200,2sleep30-21swapper/321:25:153
1723439992018,1cyclictest0-21swapper/222:35:022
1723439992018,1cyclictest0-21swapper/221:10:022
1723439992017,1cyclictest0-21swapper/221:35:012
1723438992017,2cyclictest2114283-21/usr/sbin/munin23:55:171
1723438992017,2cyclictest1880261-21head21:15:111
1723438992017,2cyclictest1792895-21cron20:05:011
1723438992017,2cyclictest1751530-21irqcore19:30:121
1723438992016,3cyclictest1867617-21kthreadcore21:05:121
1723438992010,3cyclictest1931141-21/usr/sbin/munin21:50:121
1723438992010,3cyclictest0-21swapper/100:35:061
172343799209,6cyclictest0-21swapper/021:55:120
172343799209,6cyclictest0-21swapper/021:55:120
1723437992017,2cyclictest660-21dbus-daemon21:55:010
1723437992017,2cyclictest1861422-21kthreadcore21:00:130
1723437992014,5cyclictest1770240-21kthreadcore19:45:120
1723437992014,5cyclictest1755819-21timerwakeupswit19:30:200
1723437992012,2cyclictest1723436-21cyclictest21:30:030
1723437992011,8cyclictest1982214-21kworker/u16:1-writeback23:15:210
3153791191,6phc2sys0-21swapper/300:09:563
3153791190,2phc2sys0-21swapper/320:05:143
1723439991916,1cyclictest0-21swapper/223:25:012
1723439991916,1cyclictest0-21swapper/222:10:012
1723439991913,1cyclictest0-21swapper/220:00:012
1723439991910,2cyclictest0-21swapper/222:40:012
172343899196,4cyclictest0-21swapper/121:35:081
172343899196,3cyclictest1871892-21diskmemload22:52:331
1723438991916,2cyclictest2124557-21kthreadcore00:00:151
1723438991916,2cyclictest2070278-21sh23:25:021
1723438991916,2cyclictest2053006-21latency23:10:131
1723438991916,2cyclictest1976346-21ps22:20:131
1723438991916,2cyclictest1731334-21systemd19:15:021
1723438991916,2cyclictest1-21systemd21:35:021
1723438991915,3cyclictest1952884-21latency_hist22:05:021
1723438991911,3cyclictest0-21swapper/122:35:021
1723438991911,3cyclictest0-21swapper/100:08:171
172343799199,5cyclictest0-21swapper/000:28:180
172343799198,6cyclictest0-21swapper/022:55:150
1723437991916,2cyclictest2148952-21mailstats00:15:180
1723437991916,2cyclictest2106633-21idleruntime-cro23:50:000
1723437991916,2cyclictest2085742-21fschecks_time23:35:090
1723437991916,2cyclictest2053378-21mailstats23:10:160
1723437991916,2cyclictest2036554-21kthreadcore23:00:130
1723437991916,2cyclictest1841766-21latency_hist20:45:020
1723437991916,2cyclictest1823423-21systemd-run20:30:010
1723437991916,2cyclictest1765635-21kthreadcore19:40:120
1723437991916,2cyclictest1747101-21kthreadcore19:25:150
1723437991911,7cyclictest0-21swapper/019:40:010
1723437991910,8cyclictest0-21swapper/022:50:070
1723437991910,4cyclictest0-21swapper/023:20:150
3153791180,4phc2sys0-21swapper/321:46:203
3153791180,3phc2sys0-21swapper/323:20:223
3153791180,2phc2sys0-21swapper/323:32:103
3153791180,2phc2sys0-21swapper/323:19:553
3153791180,2phc2sys0-21swapper/322:31:293
3153791180,2phc2sys0-21swapper/322:10:133
1723439991816,1cyclictest0-21swapper/200:30:022
1723439991815,1cyclictest0-21swapper/200:35:082
1723439991815,1cyclictest0-21swapper/200:05:102
1723439991814,2cyclictest0-21swapper/223:05:062
1723438991816,1cyclictest0-21swapper/123:35:021
1723438991815,2cyclictest660-21dbus-daemon23:55:011
1723438991815,2cyclictest2148241-21kthreadcore00:15:151
1723438991815,2cyclictest2055784-21aten_repower_po23:15:081
1723438991815,2cyclictest1954220-21irqrtprio22:05:161
1723438991815,2cyclictest1939654-21kernelversion21:55:141
1723438991815,2cyclictest1939654-21kernelversion21:55:141
1723438991815,2cyclictest1927062-21kthreadcore21:45:141
1723438991815,2cyclictest1842117-21cpuspeed_turbos20:45:091
1723438991815,2cyclictest1826529-21kthreadcore20:30:111
1723438991815,2cyclictest1817870-21tr20:25:081
1723438991815,2cyclictest1806683-21kernelversion20:15:131
1723438991815,2cyclictest1774904-21systemd-run19:50:021
1723438991815,2cyclictest1757833-21irqrtprio19:35:131
1723438991815,2cyclictest1756728-21kworker/u16:2-events_power_efficient19:45:011
1723438991815,2cyclictest1746568-21kthreadcore19:25:141
1723438991814,3cyclictest1830353-21gltestperf20:35:101
1723438991812,5cyclictest1246-21mta-sts-daemon00:30:171
172343899180,10cyclictest0-21swapper/119:25:021
172343799189,5cyclictest0-21swapper/023:05:170
172343799189,5cyclictest0-21swapper/022:10:530
172343799186,5cyclictest2132490-21cut00:05:140
172343799186,5cyclictest1800244-21sed20:10:120
172343799185,2cyclictest0-21swapper/000:12:370
1723437991816,1cyclictest1824246-21fschecks_count20:30:070
1723437991815,2cyclictest765-1atopacctd23:25:200
1723437991815,2cyclictest2128681-21latency_hist00:05:010
1723437991815,2cyclictest2002189-21mailstats22:35:180
1723437991815,2cyclictest1854836-21if_enp1s020:55:110
172343799180,4cyclictest1874128-21grep21:10:140
3153791171,1phc2sys0-21swapper/322:47:563
3153791170,2phc2sys0-21swapper/320:00:053
20451612170,2sleep30-21swapper/323:05:143
1723439991715,1cyclictest0-21swapper/221:10:132
1723439991715,1cyclictest0-21swapper/200:15:022
1723439991714,1cyclictest0-21swapper/223:30:002
1723439991714,1cyclictest0-21swapper/219:40:012
1723439991714,1cyclictest0-21swapper/219:25:142
172343899177,2cyclictest191rcu_preempt23:35:051
1723438991714,2cyclictest2136946-21cpuspeed_turbos00:10:101
1723438991714,2cyclictest1865419-21unixbench_multi21:00:191
1723438991714,2cyclictest1804474-21timerandwakeup20:10:191
1723438991714,2cyclictest1737892-21sendmail19:20:001
1723438991714,2cyclictest1242-21mta-sts-daemon22:10:201
1723438991714,2cyclictest1237-21mta-sts-daemon20:25:001
1723438991714,2cyclictest0-21swapper/100:30:011
1723438991713,3cyclictest1888343-21kthreadcore21:20:141
1723437991714,2cyclictest2121407-21latency_hist00:00:010
1723437991714,2cyclictest2095243-21kthreadcore23:40:140
1723437991714,2cyclictest2062770-21kworker/u16:0-rpciod23:50:130
1723437991714,2cyclictest1806595-21irqrtprio20:15:120
1723437991714,2cyclictest1-21systemd23:35:010
1723437991711,5cyclictest0-21swapper/022:15:070
1723437991710,6cyclictest1909151-21/usr/sbin/munin21:35:130
1723437991710,6cyclictest0-21swapper/021:40:070
3153791161,4phc2sys0-21swapper/321:20:453
3153791160,4phc2sys0-21swapper/322:05:083
3153791160,3phc2sys0-21swapper/319:10:013
3153791160,2phc2sys0-21swapper/322:56:543
21722652160,7sleep02172267-21diskmemload00:33:140
172343999163,2cyclictest0-21swapper/221:36:092
172343999161,8cyclictest0-21swapper/222:20:072
1723439991613,1cyclictest0-21swapper/221:55:162
1723439991613,1cyclictest0-21swapper/221:55:162
1723439991613,1cyclictest0-21swapper/221:45:132
1723439991612,2cyclictest0-21swapper/223:00:102
172343899167,4cyclictest0-21swapper/121:15:021
1723438991613,2cyclictest1841683-21kworker/u16:3-events_power_efficient21:00:021
1723438991613,2cyclictest1020-21runrttasks22:45:481
172343799168,2cyclictest0-21swapper/022:46:550
172343799161,5cyclictest1723436-21cyclictest20:35:060
1723437991614,1cyclictest2158530-21latency_hist00:25:030
1723437991613,2cyclictest1981326-21sh22:22:270
1723437991613,2cyclictest1724489-21if_enp1s019:10:110
172343799160,1cyclictest0-21swapper/021:45:060
3153791151,1phc2sys0-21swapper/300:25:493
3153791150,3phc2sys0-21swapper/320:25:193
3153791150,3phc2sys0-21swapper/300:31:363
3153791150,2phc2sys0-21swapper/323:50:173
3153791150,2phc2sys0-21swapper/321:32:223
172343999152,6cyclictest0-21swapper/222:50:012
172343999151,8cyclictest0-21swapper/223:35:052
1723439991513,1cyclictest0-21swapper/223:55:022
1723439991512,2cyclictest0-21swapper/219:45:072
1723439991512,1cyclictest0-21swapper/222:15:192
1723439991512,1cyclictest0-21swapper/222:11:052
1723439991512,1cyclictest0-21swapper/221:40:432
1723439991512,1cyclictest0-21swapper/221:30:032
1723439991512,1cyclictest0-21swapper/220:53:412
1723439991511,2cyclictest0-21swapper/222:58:192
1723439991511,2cyclictest0-21swapper/221:53:492
1723439991511,2cyclictest0-21swapper/220:35:092
1723439991511,2cyclictest0-21swapper/219:51:342
1723439991511,2cyclictest0-21swapper/219:40:082
1723439991511,2cyclictest0-21swapper/200:24:012
172343899157,2cyclictest0-21swapper/120:40:071
1723438991512,2cyclictest1237-21mta-sts-daemon20:05:081
1723438991512,2cyclictest0-21swapper/100:20:161
172343799156,5cyclictest1849373-21cut20:50:130
172343799155,5cyclictest1732019-21/usr/sbin/munin19:15:080
1723437991512,2cyclictest1847024-21timerandwakeup20:45:200
1723437991512,2cyclictest1817351-21systemd20:25:010
1723437991512,2cyclictest1781039-21sh19:55:020
172343799150,13cyclictest1879649-21basename21:15:080
3153791141,6phc2sys0-21swapper/320:20:073
3153791140,5phc2sys0-21swapper/322:16:553
3153791140,2phc2sys0-21swapper/322:40:113
3153791140,2phc2sys0-21swapper/322:25:203
3153791140,2phc2sys0-21swapper/321:55:103
3153791140,2phc2sys0-21swapper/321:55:103
3153791140,2phc2sys0-21swapper/321:15:183
3153791140,2phc2sys0-21swapper/321:10:083
3153791140,2phc2sys0-21swapper/321:06:043
3153791140,2phc2sys0-21swapper/300:20:113
172343999149,2cyclictest0-21swapper/222:40:062
172343999146,4cyclictest0-21swapper/220:25:072
172343999141,5cyclictest0-21swapper/220:20:072
172343999141,4cyclictest0-21swapper/220:00:052
1723439991412,1cyclictest0-21swapper/223:59:312
1723439991412,1cyclictest0-21swapper/223:47:412
1723439991412,1cyclictest0-21swapper/223:40:142
1723439991412,1cyclictest0-21swapper/223:18:142
1723439991412,1cyclictest0-21swapper/223:10:132
1723439991412,1cyclictest0-21swapper/222:50:182
1723439991412,1cyclictest0-21swapper/221:15:082
1723439991412,1cyclictest0-21swapper/220:40:072
1723439991412,1cyclictest0-21swapper/219:10:022
1723439991412,1cyclictest0-21swapper/200:30:072
1723439991411,1cyclictest0-21swapper/223:30:512
1723439991411,1cyclictest0-21swapper/221:20:132
1723439991411,1cyclictest0-21swapper/221:05:022
1723439991411,1cyclictest0-21swapper/220:30:062
1723439991411,1cyclictest0-21swapper/219:20:072
1723439991410,2cyclictest0-21swapper/222:28:062
1723439991410,2cyclictest0-21swapper/220:05:032
1723439991410,2cyclictest0-21swapper/200:01:212
172343899145,1cyclictest67250irq/126-eno119:50:071
172343899141,5cyclictest2034643-21sed23:00:111
1723438991411,2cyclictest0-21swapper/119:10:011
172343799145,5cyclictest1867292-21ps21:05:110
1723437991411,2cyclictest1796021-21kthreadcore20:05:130
1723437991411,2cyclictest1790566-21kthreadcore20:00:130
1723437991411,2cyclictest1782661-21kthreadcore19:55:140
1723437991411,2cyclictest1723559-21systemd19:10:020
3153791131,3phc2sys0-21swapper/319:25:063
3153791130,4phc2sys0-21swapper/323:43:183
3153791130,3phc2sys0-21swapper/321:42:193
3153791130,3phc2sys0-21swapper/319:45:053
3153791130,2phc2sys0-21swapper/323:47:233
3153791130,2phc2sys0-21swapper/323:10:503
3153791130,2phc2sys0-21swapper/322:51:583
3153791130,2phc2sys0-21swapper/300:38:333
3153791130,1phc2sys0-21swapper/322:24:283
172343999139,2cyclictest0-21swapper/220:15:062
1723439991311,1cyclictest0-21swapper/220:55:122
1723439991311,1cyclictest0-21swapper/220:10:082
1723439991310,1cyclictest0-21swapper/220:45:112
1723439991310,1cyclictest0-21swapper/219:30:082
3153791122,4phc2sys0-21swapper/323:00:063
3153791121,4phc2sys0-21swapper/321:00:063
3153791121,3phc2sys0-21swapper/323:36:223
3153791120,5phc2sys0-21swapper/320:35:063
3153791120,2phc2sys0-21swapper/323:55:263
3153791120,2phc2sys0-21swapper/323:29:493
3153791120,2phc2sys0-21swapper/321:39:553
3153791120,2phc2sys0-21swapper/320:46:573
3153791120,2phc2sys0-21swapper/319:32:073
3153791120,2phc2sys0-21swapper/319:11:193
3153791120,2phc2sys0-21swapper/300:15:423
3153791120,1phc2sys0-21swapper/320:19:243
3153791120,1phc2sys0-21swapper/319:58:003
3153791110,2phc2sys0-21swapper/320:40:323
3153791110,1phc2sys0-21swapper/321:54:203
3153791110,1phc2sys0-21swapper/320:32:593
3153791110,1phc2sys0-21swapper/319:17:483
3153791101,2phc2sys0-21swapper/322:35:183
3153791101,2phc2sys0-21swapper/300:01:153
3153791100,2phc2sys0-21swapper/319:50:063
3153791100,2phc2sys0-21swapper/319:40:043
3153791100,2phc2sys0-21swapper/319:20:053
3153791100,2phc2sys0-21swapper/300:14:563
315379191,2phc2sys0-21swapper/320:50:103
315379190,2phc2sys0-21swapper/320:55:033
315379190,2phc2sys0-21swapper/319:35:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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