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2026-05-28 - 09:21
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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 May 28, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
199822621100,1sleep0171ktimers/020:49:560
229200521080,2sleep12291845-21ssh00:09:551
213424021020,1sleep20-21swapper/222:24:542
204418821010,2sleep30-21swapper/321:24:543
21744292330,2sleep30-21swapper/322:49:563
20738492310,2sleep30-21swapper/321:44:543
1874513993027,1cyclictest0-21swapper/223:45:002
1874511992824,2cyclictest0-21swapper/019:15:010
1874511992719,7cyclictest1296-21polkitd22:05:010
1874513992620,2cyclictest0-21swapper/220:09:492
1874512992623,2cyclictest2139141-21systemd22:25:021
1874512992623,2cyclictest2131014-21apt-key22:20:011
1874511992623,2cyclictest2116365-21grep22:10:020
1874511992623,2cyclictest1326-21systemd-logind19:45:000
1874512992522,2cyclictest2070470-21ls21:40:001
1874513992421,1cyclictest0-21swapper/223:30:012
1874511992421,2cyclictest0-21swapper/019:20:020
1874511992420,2cyclictest0-21swapper/023:20:000
1874513992219,1cyclictest0-21swapper/200:35:012
1874512992218,2cyclictest0-21swapper/121:15:011
1874511992216,5cyclictest2146675-21sed22:30:020
1874511992213,7cyclictest0-21swapper/000:05:010
2649091211,2phc2sys0-21swapper/322:03:443
1874513992119,1cyclictest0-21swapper/221:10:012
1874513992118,1cyclictest0-21swapper/222:15:002
1874513992118,1cyclictest0-21swapper/219:40:002
1874512992118,2cyclictest2221590-21wc23:20:011
1874512992118,2cyclictest1920190-21latency_hist19:45:011
1874512992118,2cyclictest1888664-21systemctl19:19:591
1874512992118,1cyclictest1938698-21/usr/sbin/munin20:00:011
187451199216,7cyclictest22902322sleep000:07:450
1874511992118,2cyclictest2086296-21munin-plugin-st21:50:010
1874511992117,3cyclictest1-21systemd21:20:020
383433398200,2rtkit-daemon3851705-21mta-sts-daemon19:13:291
2649091201,3phc2sys0-21swapper/300:01:203
1874513992017,1cyclictest0-21swapper/223:40:002
1874513992017,1cyclictest0-21swapper/219:55:002
187451299209,3cyclictest0-21swapper/123:34:491
1874512992017,2cyclictest2273750-21latency_hist23:55:011
1874512992017,2cyclictest2258631-21grep23:45:011
1874512992017,2cyclictest2006724-21systemd-run20:55:011
1874512992016,3cyclictest3880722-21gmain23:00:021
1874511992016,2cyclictest0-21swapper/021:40:020
1874511992010,5cyclictest0-21swapper/023:44:540
383433398190,2rtkit-daemon3851703-21mta-sts-daemon19:53:001
1874513991916,1cyclictest0-21swapper/223:55:002
1874513991916,1cyclictest0-21swapper/223:00:002
1874512991916,2cyclictest2101509-21sed22:00:021
1874512991916,2cyclictest2101509-21sed22:00:021
1874512991916,2cyclictest0-21swapper/100:30:011
1874512991916,2cyclictest0-21swapper/100:30:011
1874512991915,2cyclictest134050irq/121-eno100:15:021
187451299191,3cyclictest1895208-21munin-run19:25:001
187451199198,4cyclictest2244486-21sshd23:35:550
187451199193,5cyclictest491rcuog/221:12:160
1874511991917,1cyclictest0-21swapper/021:25:010
1874511991916,2cyclictest2100923-21latency_hist22:00:010
1874511991916,2cyclictest2100923-21latency_hist22:00:010
1874511991916,2cyclictest1975602-21mailstats20:30:000
1874511991916,2cyclictest0-21swapper/021:35:010
1874511991916,2cyclictest0-21swapper/000:00:030
1874511991915,3cyclictest0-21swapper/019:55:010
1874511991915,2cyclictest0-21swapper/023:50:020
1874511991914,3cyclictest0-21swapper/022:15:020
1874511991914,3cyclictest0-21swapper/021:05:000
1874511991914,3cyclictest0-21swapper/021:05:000
1874511991913,5cyclictest0-21swapper/022:35:010
1874511991912,6cyclictest3827634-1atopacctd19:29:550
1874511991911,7cyclictest0-21swapper/021:55:010
1874513991816,1cyclictest0-21swapper/200:10:002
1874513991815,1cyclictest0-21swapper/223:35:012
1874513991815,1cyclictest0-21swapper/223:20:012
1874513991815,1cyclictest0-21swapper/219:20:002
1874513991814,2cyclictest0-21swapper/220:20:002
1874512991816,1cyclictest2236343-21timedrift23:30:011
1874512991816,1cyclictest1981789-21wc20:35:011
1874512991815,2cyclictest2281094-21latency_hist00:00:001
1874512991815,2cyclictest1963487-21timerwakeupswit20:20:011
1874512991815,2cyclictest1901096-21idleruntime-cro19:30:001
1874512991815,2cyclictest1-21systemd19:10:011
1874512991815,2cyclictest1-21systemd19:10:011
1874512991813,3cyclictest3827634-1atopacctd23:24:551
1874512991812,5cyclictest3834332-21rtkit-daemon20:07:591
187451299180,15cyclictest2168729-21munin-run22:45:021
1874511991815,2cyclictest0-21swapper/022:20:030
1874511991815,2cyclictest0-21swapper/000:25:010
1874511991814,2cyclictest0-21swapper/023:30:020
1874511991813,4cyclictest1894252-21kthreadcore19:24:560
1874511991813,3cyclictest0-21swapper/021:30:000
1874511991813,3cyclictest0-21swapper/020:35:020
187451199180,16cyclictest2341124-21cut00:40:010
2649091170,3phc2sys0-21swapper/323:34:113
187451399171,9cyclictest0-21swapper/222:10:012
1874513991715,1cyclictest0-21swapper/223:55:032
1874513991715,1cyclictest0-21swapper/222:50:022
1874513991715,1cyclictest0-21swapper/222:00:032
1874513991715,1cyclictest0-21swapper/222:00:022
1874513991715,1cyclictest0-21swapper/221:50:022
1874513991714,1cyclictest0-21swapper/223:09:542
1874513991714,1cyclictest0-21swapper/221:35:002
1874513991714,1cyclictest0-21swapper/220:04:562
1874513991714,1cyclictest0-21swapper/220:00:002
1874513991714,1cyclictest0-21swapper/200:14:532
1874513991711,4cyclictest1994330-21turbostat20:45:012
187451399170,14cyclictest0-21swapper/221:15:382
1874512991714,2cyclictest3824567-21rs:main1
1874512991714,2cyclictest2333267-21missed_timers00:34:581
1874512991714,2cyclictest2281506-21mailstats00:00:021
1874512991714,2cyclictest2266031-21systemd23:50:001
1874512991714,2cyclictest2209858-21kthreadcore23:14:551
1874512991714,2cyclictest2175857-21grep22:49:591
1874512991714,2cyclictest2062799-21pmu-power21:35:021
1874512991714,2cyclictest2012714-21/usr/sbin/munin21:00:001
1874512991714,2cyclictest1989329-21tr20:44:491
1874512991714,2cyclictest1975887-21sh20:30:021
1874512991714,2cyclictest1920381-21kworker/u16:3-events_unbound21:54:501
1874512991714,2cyclictest1290-21dbus-daemon23:10:001
1874512991714,2cyclictest0-21swapper/100:40:011
1874512991713,3cyclictest2142242-21kthreadcore22:29:541
1874512991711,2cyclictest3851703-21mta-sts-daemon22:50:191
187451199179,7cyclictest0-21swapper/021:10:010
187451199179,6cyclictest0-21swapper/022:45:000
187451199178,4cyclictest1951501-21sshd20:10:270
187451199178,1cyclictest134050irq/121-eno100:19:350
187451199177,5cyclictest0-21swapper/022:53:510
187451199177,5cyclictest0-21swapper/022:25:010
1874511991714,2cyclictest3827634-1atopacctd20:54:090
1874511991714,2cyclictest1988010-21latency_hist20:40:010
1874511991714,2cyclictest1926186-21sed19:50:000
1874511991714,2cyclictest1909657-21irqrtprio19:39:540
1874511991714,2cyclictest0-21swapper/023:00:020
1874511991714,2cyclictest0-21swapper/020:25:010
1874511991714,2cyclictest0-21swapper/020:05:010
1874511991713,3cyclictest2075579-21kthreadcore21:44:570
187451199171,2cyclictest2273657-21dpkg23:55:010
1874511991712,3cyclictest0-21swapper/022:50:000
1874511991711,1cyclictest383433398rtkit-daemon22:39:270
1874511991710,6cyclictest0-21swapper/000:14:550
1874511991710,1cyclictest2025037-21diskmemload23:03:510
383433398160,8rtkit-daemon3851703-21mta-sts-daemon23:00:531
2649091161,4phc2sys0-21swapper/320:04:483
2649091160,3phc2sys0-21swapper/321:15:303
2649091160,3phc2sys0-21swapper/319:29:503
2649091160,2phc2sys0-21swapper/321:54:483
2649091160,2phc2sys0-21swapper/319:10:023
2649091160,2phc2sys0-21swapper/319:10:023
20906352160,1sleep20-21swapper/221:54:562
1874513991614,1cyclictest0-21swapper/222:55:002
1874513991614,1cyclictest0-21swapper/222:40:012
1874513991614,1cyclictest0-21swapper/222:30:022
1874513991614,1cyclictest0-21swapper/220:55:032
1874513991614,1cyclictest0-21swapper/219:30:012
1874513991613,1cyclictest0-21swapper/221:04:542
1874513991613,1cyclictest0-21swapper/221:04:542
1874513991613,1cyclictest0-21swapper/220:25:022
1874513991613,1cyclictest0-21swapper/219:49:512
1874513991613,1cyclictest0-21swapper/200:29:502
1874513991613,1cyclictest0-21swapper/200:29:502
1874512991614,1cyclictest2251207-21sh23:40:021
1874512991613,2cyclictest2314970-21kthreadcore00:24:551
1874512991613,2cyclictest2160867-21pmu-power22:39:591
1874512991613,2cyclictest2047760-21switchtime21:25:001
1874512991613,2cyclictest2038693-21kthreadcore21:19:561
1874512991613,2cyclictest1983561-21gltestperf20:39:531
1874512991613,2cyclictest1957105-21unin-run20:15:021
1874512991612,3cyclictest2022865-21kthreadcore21:09:571
1874512991612,3cyclictest1969922-21kworker/u16:2+nfsiod22:05:381
1874512991611,3cyclictest0-21swapper/100:20:031
187451199167,8cyclictest2223487-21aten2.4-expect23:24:490
187451199164,8cyclictest2326802-21vmstat00:30:040
187451199163,8cyclictest2208038-21diskmemload23:13:570
187451199161,7cyclictest1958013-21/usr/sbin/munin20:20:010
187451199161,5cyclictest2320700-21dpkg00:29:480
187451199161,5cyclictest2320700-21dpkg00:29:480
1874511991613,2cyclictest1874649-21latency_hist19:10:010
1874511991613,2cyclictest1874649-21latency_hist19:10:010
1874511991612,2cyclictest0-21swapper/023:34:560
1874511991610,2cyclictest491rcuog/220:45:000
1874511991610,2cyclictest2025037-21diskmemload23:08:330
2649091151,2phc2sys0-21swapper/322:24:483
2649091151,2phc2sys0-21swapper/319:15:043
2649091150,2phc2sys0-21swapper/322:34:553
2649091150,2phc2sys0-21swapper/321:00:013
1874513991513,1cyclictest0-21swapper/220:29:532
1874513991512,1cyclictest0-21swapper/223:49:552
1874513991512,1cyclictest0-21swapper/223:13:492
1874513991512,1cyclictest0-21swapper/223:01:062
1874513991512,1cyclictest0-21swapper/222:20:022
1874513991512,1cyclictest0-21swapper/221:36:452
1874513991512,1cyclictest0-21swapper/221:25:182
1874513991512,1cyclictest0-21swapper/221:24:502
1874513991512,1cyclictest0-21swapper/200:35:372
187451299159,5cyclictest3851703-21mta-sts-daemon22:11:251
1874512991512,2cyclictest2149091-21sed22:34:521
1874512991512,2cyclictest2054783-21kthreadcore21:29:581
1874512991512,2cyclictest1912546-21kthreadcore19:39:561
1874512991512,2cyclictest1905249-21kthreadcore19:34:571
1874512991512,2cyclictest0-21swapper/121:45:041
1874512991511,2cyclictest2000400-21latency_hist20:50:021
1874512991510,4cyclictest1880576-21munin-node21:03:201
1874512991510,4cyclictest1880576-21munin-node21:03:201
187451299150,2cyclictest1944656-21debian-sa120:05:001
187451199158,6cyclictest1933495-21aten2.4-expect19:59:500
187451199153,7cyclictest1946373-21tune2fs20:09:520
1874511991511,3cyclictest0-21swapper/019:35:010
2649091142,2phc2sys0-21swapper/321:01:003
2649091142,2phc2sys0-21swapper/321:00:593
2649091141,5phc2sys0-21swapper/320:34:493
2649091141,2phc2sys0-21swapper/321:09:573
2649091140,4phc2sys0-21swapper/322:44:503
2649091140,2phc2sys0-21swapper/323:40:043
2649091140,2phc2sys0-21swapper/319:11:133
187451399149,2cyclictest0-21swapper/220:12:322
1874513991412,1cyclictest0-21swapper/222:44:492
1874513991412,1cyclictest0-21swapper/222:26:422
1874513991412,1cyclictest0-21swapper/222:01:102
1874513991412,1cyclictest0-21swapper/221:45:012
1874513991412,1cyclictest0-21swapper/219:25:002
1874513991412,1cyclictest0-21swapper/219:15:022
1874513991411,1cyclictest0-21swapper/223:21:512
1874513991411,1cyclictest0-21swapper/221:14:502
1874513991411,1cyclictest0-21swapper/220:50:002
1874513991411,1cyclictest0-21swapper/219:10:032
1874513991411,1cyclictest0-21swapper/219:10:022
1874513991411,1cyclictest0-21swapper/200:24:042
1874513991411,1cyclictest0-21swapper/200:15:312
1874513991411,1cyclictest0-21swapper/200:01:352
1874512991410,3cyclictest1967978-21kthreadcore20:24:561
187451299140,2cyclictest2108315-21awk22:05:001
1874511991411,2cyclictest2011961-21kthreadcore20:59:590
2649091132,4phc2sys0-21swapper/319:34:493
2649091131,2phc2sys0-21swapper/319:50:013
2649091130,2phc2sys0-21swapper/323:16:193
22447032130,3sleep30-21swapper/323:36:393
187451399139,2cyclictest0-21swapper/220:39:272
1874513991311,1cyclictest0-21swapper/219:31:272
1874513991310,2cyclictest0-21swapper/220:59:582
1874513991310,1cyclictest0-21swapper/219:44:552
1874512991310,2cyclictest3851705-21mta-sts-daemon21:40:441
2649091121,3phc2sys0-21swapper/300:39:493
2649091120,3phc2sys0-21swapper/320:19:553
2649091120,2phc2sys0-21swapper/323:45:383
2649091120,2phc2sys0-21swapper/323:05:403
2649091120,2phc2sys0-21swapper/322:53:183
2649091120,2phc2sys0-21swapper/322:07:423
2649091120,1phc2sys0-21swapper/321:36:183
2649091120,1phc2sys0-21swapper/320:49:093
2649091120,1phc2sys0-21swapper/320:10:293
1874513991210,1cyclictest0-21swapper/220:34:542
2649091112,2phc2sys0-21swapper/322:59:513
2649091111,3phc2sys0-21swapper/300:10:023
2649091111,2phc2sys0-21swapper/323:21:213
2649091111,2phc2sys0-21swapper/319:54:553
2649091110,2phc2sys0-21swapper/321:10:093
2649091110,1phc2sys0-21swapper/322:28:193
2649091110,1phc2sys0-21swapper/321:59:403
2649091110,1phc2sys0-21swapper/321:59:403
2649091110,1phc2sys0-21swapper/320:51:333
2649091110,1phc2sys0-21swapper/320:44:043
2649091110,1phc2sys0-21swapper/319:58:153
2649091110,1phc2sys0-21swapper/319:42:323
2649091101,2phc2sys0-21swapper/300:30:033
2649091101,2phc2sys0-21swapper/300:30:033
2649091100,5phc2sys0-21swapper/321:29:483
2649091100,2phc2sys0-21swapper/323:51:513
2649091100,2phc2sys0-21swapper/323:25:583
2649091100,2phc2sys0-21swapper/323:14:083
2649091100,2phc2sys0-21swapper/323:05:003
2649091100,2phc2sys0-21swapper/322:39:273
2649091100,2phc2sys0-21swapper/322:19:573
2649091100,2phc2sys0-21swapper/322:12:263
2649091100,2phc2sys0-21swapper/321:48:293
2649091100,2phc2sys0-21swapper/321:35:023
2649091100,2phc2sys0-21swapper/320:24:553
2649091100,2phc2sys0-21swapper/300:23:253
2649091100,2phc2sys0-21swapper/300:10:473
2649091100,1phc2sys0-21swapper/319:39:553
264909191,2phc2sys0-21swapper/323:55:283
264909191,2phc2sys0-21swapper/320:09:133
264909190,2phc2sys0-21swapper/319:24:533
264909190,2phc2sys0-21swapper/300:30:233
264909190,2phc2sys0-21swapper/300:15:123
264909190,1phc2sys0-21swapper/320:35:233
264909181,2phc2sys0-21swapper/320:27:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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