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2026-07-24 - 00:40
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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 Thu Jul 23, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205562821010,1sleep10-21swapper/111:21:151
19667102700,1sleep11966709-21ssh10:22:031
18716782290,1sleep10-21swapper/109:20:311
1707724992413,6cyclictest0-21swapper/010:20:020
1707725992316,3cyclictest2005685-21grep10:50:561
1707724992312,6cyclictest0-21swapper/009:31:040
1707726992215,3cyclictest0-21swapper/210:15:562
1707725992215,3cyclictest1976509-21head10:30:591
1707724992219,2cyclictest2123990-21dpkg12:10:020
1707724992218,2cyclictest2109265-21latency_hist12:00:030
1707724992212,6cyclictest0-21swapper/011:20:010
1707726992118,1cyclictest0-21swapper/210:40:022
170772599217,2cyclictest191rcu_preempt08:40:011
1707724992118,2cyclictest1982518-21cron10:35:010
1707724992118,2cyclictest1938060-21munin-run10:05:010
1707724992115,2cyclictest17750irq/127-ahci[0000:00:17.0]08:30:010
1707724992113,7cyclictest2131522-21awk12:15:010
1707724992111,5cyclictest0-21swapper/009:51:090
1707725992017,2cyclictest2168665-21latency_hist12:40:011
1707725992017,2cyclictest2126042-21kthreadcore12:11:031
1707725992017,2cyclictest1-21systemd10:50:011
1707725992015,1cyclictest191rcu_preempt08:20:541
1707726991916,1cyclictest0-21swapper/207:50:012
170772599197,7cyclictest1861337-21tr09:11:041
1707725991916,2cyclictest2077531-21switchtime11:36:091
1707725991916,2cyclictest2027351-21latency_hist11:05:011
170772599191,4cyclictest1938377-21ssh10:05:101
1707725991911,3cyclictest36-21ksoftirqd/107:40:031
1707725991911,1cyclictest191rcu_preempt11:45:371
1707725991910,4cyclictest2048520-21kworker/u16:3-events_unbound11:58:171
170772499199,5cyclictest0-21swapper/011:37:080
1707724991916,2cyclictest1775982-21needreboot08:01:030
1707724991912,6cyclictest0-21swapper/009:20:020
1707724991911,7cyclictest0-21swapper/009:06:090
1707724991911,4cyclictest1884056-21missed_timers09:26:050
1707724991910,8cyclictest0-21swapper/011:05:550
170772499190,2cyclictest2012445-21munin-run10:55:020
170772699189,4cyclictest0-21swapper/209:35:552
1707726991815,1cyclictest0-21swapper/211:30:012
1707726991815,1cyclictest0-21swapper/211:05:012
1707726991815,1cyclictest0-21swapper/210:00:012
170772599188,4cyclictest1921536-21sshd09:51:081
170772599187,6cyclictest36-21ksoftirqd/109:55:591
170772599183,9cyclictest36-21ksoftirqd/107:51:011
1707725991815,2cyclictest2120554-21kthreadcore12:06:041
1707725991815,2cyclictest1893571-21systemd-run09:35:011
1707725991815,2cyclictest1884284-21grep09:26:071
1707725991815,2cyclictest1789200-21apt-key08:15:011
1707725991815,2cyclictest0-21swapper/110:45:021
1707725991814,1cyclictest191rcu_preempt11:09:031
1707725991811,2cyclictest2071024-21sh11:32:551
1707725991810,3cyclictest36-21ksoftirqd/110:30:011
170772499189,5cyclictest0-21swapper/009:21:000
170772499189,4cyclictest0-21swapper/009:45:020
170772499188,5cyclictest0-21swapper/011:30:540
170772499188,5cyclictest0-21swapper/011:11:070
170772499187,6cyclictest0-21swapper/011:30:020
1707724991815,2cyclictest662-21avahi-daemon08:10:010
1707724991815,2cyclictest1850104-21grep09:05:010
1707724991815,2cyclictest1034-21runrttasks12:16:050
170772499181,12cyclictest0-21swapper/011:01:430
170772499180,4cyclictest2012764-21ssh10:55:540
170772499180,15cyclictest1689575-21kworker/0:0+mm_percpu_wq07:45:010
3240591170,3phc2sys0-21swapper/311:32:133
3240591170,1phc2sys0-21swapper/311:41:193
1707726991715,1cyclictest0-21swapper/207:15:022
1707726991714,1cyclictest0-21swapper/212:36:052
1707726991714,1cyclictest0-21swapper/209:10:022
170772599179,3cyclictest0-21swapper/110:56:071
170772599179,1cyclictest69250irq/121-eno111:19:281
170772599178,1cyclictest191rcu_preempt12:01:071
170772599177,5cyclictest36-21ksoftirqd/108:46:041
170772599175,7cyclictest1811218-21tr08:31:021
170772599175,2cyclictest191rcu_preempt09:15:561
170772599173,5cyclictest36-21ksoftirqd/111:55:021
1707725991714,2cyclictest1839416-21grep08:56:031
1707725991714,2cyclictest0-21swapper/110:40:011
1707725991710,3cyclictest0-21swapper/112:21:091
170772499179,4cyclictest1909751-21sh09:46:000
170772499179,4cyclictest0-21swapper/010:10:570
170772499178,5cyclictest1965940-21processes10:21:050
1707724991714,2cyclictest1837555-21grep08:51:080
1707724991714,2cyclictest1825808-21latency_hist08:45:010
1707724991713,2cyclictest0-21swapper/007:15:020
170772499170,13cyclictest0-21swapper/008:30:570
1157598170,2rtkit-daemon0-21swapper/108:51:441
3240591160,4phc2sys0-21swapper/310:51:363
3240591160,2phc2sys0-21swapper/309:38:173
3240591160,1phc2sys0-21swapper/312:22:193
1707726991614,1cyclictest0-21swapper/212:20:012
1707726991614,1cyclictest0-21swapper/212:10:032
1707726991614,1cyclictest0-21swapper/211:00:012
1707726991614,1cyclictest0-21swapper/209:45:022
1707726991614,1cyclictest0-21swapper/209:17:102
1707726991613,1cyclictest0-21swapper/208:45:012
170772599164,7cyclictest36-21ksoftirqd/111:26:021
170772599162,5cyclictest0-21swapper/110:10:551
1707725991614,1cyclictest1960464-21cut10:20:021
1707725991613,2cyclictest684-21systemd-logind09:05:021
1707725991613,2cyclictest351ktimers/107:45:011
1707725991613,2cyclictest2137510-21grep12:16:081
1707725991613,2cyclictest1902271-21grep09:40:581
1707725991613,2cyclictest1307-21mta-sts-daemon07:30:591
1707725991612,3cyclictest759-1atopacctd11:41:011
1707725991612,3cyclictest672-21polkitd11:15:011
1707725991612,3cyclictest1734230-21latency_hist07:30:031
1707725991612,1cyclictest491rcuog/212:30:021
1707725991610,2cyclictest69250irq/121-eno112:34:191
170772499168,4cyclictest0-21swapper/012:30:000
170772499168,4cyclictest0-21swapper/012:01:010
1707724991613,2cyclictest2168746-21systemd-run12:40:020
1707724991613,2cyclictest1790465-21gltestperf08:15:590
1707724991613,2cyclictest1309-21mta-sts-daemon07:55:000
1707724991613,2cyclictest0-21swapper/008:15:020
1707724991613,2cyclictest0-21swapper/007:40:030
1707724991610,5cyclictest1307-21mta-sts-daemon09:13:480
3240591153,2phc2sys0-21swapper/310:09:123
3240591150,4phc2sys0-21swapper/308:40:303
3240591150,2phc2sys0-21swapper/309:52:373
3240591150,2phc2sys0-21swapper/309:06:043
3240591150,1phc2sys0-21swapper/310:27:193
1707726991513,1cyclictest0-21swapper/212:11:402
1707726991513,1cyclictest0-21swapper/210:45:562
1707726991513,1cyclictest0-21swapper/210:15:012
1707726991513,1cyclictest0-21swapper/209:50:592
1707726991513,1cyclictest0-21swapper/209:35:012
170772699151,2cyclictest0-21swapper/212:20:542
1707726991512,1cyclictest0-21swapper/212:05:012
1707726991512,1cyclictest0-21swapper/211:54:422
1707726991512,1cyclictest0-21swapper/211:41:002
1707726991512,1cyclictest0-21swapper/211:35:012
1707726991512,1cyclictest0-21swapper/211:25:012
1707726991512,1cyclictest0-21swapper/210:26:092
1707726991512,1cyclictest0-21swapper/210:06:052
1707726991512,1cyclictest0-21swapper/209:29:562
1707726991512,1cyclictest0-21swapper/209:15:022
1707726991512,1cyclictest0-21swapper/208:15:002
170772599157,3cyclictest36-21ksoftirqd/109:10:021
170772599157,2cyclictest191rcu_preempt07:15:021
170772599154,5cyclictest1718469-21cut07:16:041
170772599154,3cyclictest36-21ksoftirqd/110:00:591
170772599153,6cyclictest36-21ksoftirqd/108:40:561
170772599153,5cyclictest36-21ksoftirqd/107:46:041
170772599152,4cyclictest1176268-1atop09:40:011
1707725991512,2cyclictest664-21dbus-daemon09:46:081
1707725991510,4cyclictest1770104-21processes07:56:071
1707725991510,1cyclictest1789125-21kworker/1:0+events_freezable08:16:081
170772499158,6cyclictest1300-21mta-sts-daemon11:48:290
170772499157,2cyclictest0-21swapper/010:25:570
170772499155,9cyclictest1800274-21tr08:21:020
170772499151,2cyclictest1723301-21ethtool07:21:000
1707724991512,2cyclictest664-21dbus-daemon12:25:010
1707724991512,2cyclictest2155508-21cut12:30:590
1707724991512,2cyclictest1831133-21mailstats08:46:060
1707724991512,2cyclictest1759041-21systemd07:50:020
1707724991512,2cyclictest1735155-21sh07:30:570
1707724991512,2cyclictest1721646-21unixbench-2d07:16:100
1707724991512,2cyclictest1309-21mta-sts-daemon10:39:280
170772499150,4cyclictest491rcuog/211:51:120
3240591140,3phc2sys0-21swapper/307:35:553
3240591140,2phc2sys0-21swapper/312:32:133
3240591140,2phc2sys0-21swapper/310:10:393
3240591140,2phc2sys0-21swapper/309:12:033
3240591140,2phc2sys0-21swapper/309:00:553
170772699149,3cyclictest18729452chrt09:21:002
1707726991412,1cyclictest0-21swapper/209:45:572
1707726991412,1cyclictest0-21swapper/207:32:092
1707726991411,1cyclictest0-21swapper/212:26:002
1707726991411,1cyclictest0-21swapper/211:16:012
1707726991411,1cyclictest0-21swapper/210:51:002
1707726991411,1cyclictest0-21swapper/210:30:562
1707726991411,1cyclictest0-21swapper/210:20:432
1707726991411,1cyclictest0-21swapper/210:01:092
1707726991411,1cyclictest0-21swapper/208:52:082
1707726991411,1cyclictest0-21swapper/208:30:572
1707726991411,1cyclictest0-21swapper/208:21:012
1707726991411,1cyclictest0-21swapper/208:16:032
1707726991411,1cyclictest0-21swapper/207:30:012
1707726991410,2cyclictest0-21swapper/212:30:592
1707726991410,2cyclictest0-21swapper/211:56:032
170772599148,2cyclictest191rcu_preempt07:21:031
170772599144,5cyclictest1707903-21systemd07:10:031
170772599143,5cyclictest1771933-21perl08:00:571
1707725991411,2cyclictest1306-21mta-sts-daemon08:05:031
1707725991410,3cyclictest1306-21mta-sts-daemon08:25:571
170772499149,4cyclictest2082877-21cut11:41:030
170772499145,5cyclictest0-21swapper/010:45:110
1707724991411,2cyclictest1893840-21sh09:35:160
1707724991411,2cyclictest1843325-21mailstats08:56:090
1707724991411,2cyclictest1306-21mta-sts-daemon10:07:430
1707724991411,2cyclictest11574-21rtkit-daemon10:41:280
1707724991410,3cyclictest838-21gmain11:24:550
3240591132,3phc2sys0-21swapper/312:10:043
3240591130,2phc2sys0-21swapper/311:21:113
3240591130,2phc2sys0-21swapper/311:07:123
3240591130,2phc2sys0-21swapper/311:03:483
3240591130,2phc2sys0-21swapper/310:15:093
3240591130,2phc2sys0-21swapper/310:02:513
3240591130,2phc2sys0-21swapper/309:29:203
3240591130,2phc2sys0-21swapper/309:16:343
3240591130,1phc2sys0-21swapper/310:43:103
1707726991311,1cyclictest0-21swapper/211:47:442
1707726991311,1cyclictest0-21swapper/208:40:012
1707726991311,1cyclictest0-21swapper/208:01:042
1707726991310,1cyclictest0-21swapper/211:35:572
1707726991310,1cyclictest0-21swapper/211:12:232
1707726991310,1cyclictest0-21swapper/210:41:042
1707726991310,1cyclictest0-21swapper/209:01:092
1707726991310,1cyclictest0-21swapper/208:45:552
1707726991310,1cyclictest0-21swapper/208:26:022
1707726991310,1cyclictest0-21swapper/207:41:012
1707726991310,1cyclictest0-21swapper/207:35:572
170772499139,3cyclictest1770352-21timerandwakeup07:56:090
170772499132,6cyclictest0-21swapper/007:28:090
1707724991310,2cyclictest1924479-21tail09:55:570
3240591124,2phc2sys0-21swapper/312:28:443
3240591121,4phc2sys0-21swapper/311:45:553
3240591120,2phc2sys0-21swapper/311:55:543
3240591120,2phc2sys0-21swapper/310:30:403
3240591120,1phc2sys0-21swapper/309:22:433
170772699129,1cyclictest0-21swapper/208:06:042
170772699129,1cyclictest0-21swapper/207:50:082
170772699129,1cyclictest0-21swapper/207:20:552
1707726991210,1cyclictest0-21swapper/211:05:242
1707726991210,1cyclictest0-21swapper/208:55:592
1707726991210,1cyclictest0-21swapper/207:56:042
1707726991210,1cyclictest0-21swapper/207:16:032
170772499129,2cyclictest0-21swapper/008:36:000
3240591111,3phc2sys0-21swapper/310:45:553
3240591111,2phc2sys0-21swapper/312:01:033
3240591110,3phc2sys0-21swapper/312:12:193
3240591110,2phc2sys0-21swapper/310:00:023
3240591110,2phc2sys0-21swapper/309:34:093
3240591110,2phc2sys0-21swapper/308:35:023
3240591110,2phc2sys0-21swapper/308:15:553
3240591110,2phc2sys0-21swapper/307:11:143
3240591110,1phc2sys0-21swapper/311:17:543
3240591110,1phc2sys0-21swapper/310:39:343
3240591110,1phc2sys0-21swapper/307:40:523
3240591101,3phc2sys0-21swapper/312:20:013
3240591101,2phc2sys0-21swapper/311:10:573
3240591101,2phc2sys0-21swapper/309:43:033
3240591101,2phc2sys0-21swapper/307:15:033
3240591100,4phc2sys0-21swapper/311:25:553
3240591100,4phc2sys0-21swapper/308:05:553
3240591100,4phc2sys0-21swapper/307:20:553
3240591100,3phc2sys0-21swapper/308:20:563
3240591100,2phc2sys0-21swapper/312:37:183
3240591100,2phc2sys0-21swapper/311:50:213
3240591100,2phc2sys0-21swapper/311:38:463
3240591100,2phc2sys0-21swapper/310:55:543
3240591100,2phc2sys0-21swapper/310:23:353
3240591100,2phc2sys0-21swapper/309:45:593
3240591100,2phc2sys0-21swapper/308:11:383
3240591100,2phc2sys0-21swapper/307:30:173
3240591100,2phc2sys0-21swapper/307:30:023
3240591100,1phc2sys0-21swapper/307:57:023
170772499108,1cyclictest617-21hwrng07:10:010
324059191,2phc2sys0-21swapper/308:00:553
324059190,2phc2sys0-21swapper/308:55:583
324059190,2phc2sys0-21swapper/308:52:493
324059190,2phc2sys0-21swapper/308:45:563
324059190,2phc2sys0-21swapper/308:35:063
324059190,2phc2sys0-21swapper/307:51:093
324059190,2phc2sys0-21swapper/307:06:013
324059190,1phc2sys0-21swapper/307:46:003
17077269997,1cyclictest0-21swapper/207:10:012
324059180,2phc2sys0-21swapper/308:26:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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