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2026-06-26 - 12:50
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Fri Jun 26, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1553199992623,1cyclictest0-21swapper/319:55:143
1553199992421,1cyclictest0-21swapper/322:40:133
155319999241,8cyclictest1676955-21turbostat20:45:013
1553199992219,1cyclictest0-21swapper/323:40:013
1553199992219,1cyclictest0-21swapper/322:20:023
1553199992219,1cyclictest0-21swapper/320:55:003
1553199992219,1cyclictest0-21swapper/300:20:153
155319999221,15cyclictest1683589-21taskset20:50:013
16737402210,9sleep11675611-21tr20:40:191
1553199992118,1cyclictest0-21swapper/322:55:213
1553199992118,1cyclictest0-21swapper/322:40:023
1553199992118,1cyclictest0-21swapper/321:40:103
1553199992017,1cyclictest0-21swapper/323:00:153
1553199992017,1cyclictest0-21swapper/323:00:143
1553199992017,1cyclictest0-21swapper/300:00:183
155319999201,15cyclictest1830344-21taskset22:25:193
155319999201,14cyclictest1998894-21taskset00:14:123
155319999201,14cyclictest1739246-21taskset21:26:573
155319999201,14cyclictest1690053-21chrt20:55:103
1553199991916,1cyclictest0-21swapper/322:50:263
1553199991916,1cyclictest0-21swapper/320:05:253
155319999191,14cyclictest1913306-21taskset23:20:043
155319999191,14cyclictest1725026-21taskset21:20:123
155319999191,13cyclictest2023042-21taskset00:30:013
155319999191,13cyclictest1613046-21sleep19:55:003
1553199991816,1cyclictest0-21swapper/323:45:143
1553199991816,1cyclictest0-21swapper/323:34:053
1553199991816,1cyclictest0-21swapper/321:09:503
1553199991816,1cyclictest0-21swapper/300:05:293
1553199991815,1cyclictest0-21swapper/323:40:043
1553199991815,1cyclictest0-21swapper/322:20:003
1553199991815,1cyclictest0-21swapper/321:32:213
1553199991815,1cyclictest0-21swapper/321:32:203
1553199991815,1cyclictest0-21swapper/321:15:193
1553199991813,2cyclictest18401072sleep322:30:203
155319999181,14cyclictest1594134-21taskset19:40:063
155319999181,13cyclictest2021196-21taskset00:25:313
155319999181,13cyclictest1927186-21taskset23:25:503
155319999181,13cyclictest1896090-21taskset23:06:243
155319999181,13cyclictest1786136-21taskset21:56:203
155319999181,13cyclictest1657606-21taskset20:28:123
155319999181,13cyclictest1587046-21taskset19:30:353
155319999181,13cyclictest1562493-21taskset19:15:173
155319999181,13cyclictest1559223-21chrt19:10:263
155319999178,6cyclictest17941592sleep322:01:353
1553199991714,1cyclictest0-21swapper/321:45:213
155319999171,13cyclictest2036900-21taskset00:35:453
155319999171,13cyclictest1999510-21taskset00:15:083
155319999171,13cyclictest1905824-21taskset23:15:153
155319999171,13cyclictest1865791-21taskset22:49:263
155319999171,13cyclictest1715779-21taskset21:12:113
155319999171,13cyclictest1670377-21taskset20:38:103
155319999171,13cyclictest1651081-21taskset20:21:103
155319999171,13cyclictest1606364-21taskset19:46:403
155319999171,13cyclictest1606364-21taskset19:46:393
155319999171,13cyclictest1592751-21taskset19:35:203
155319999171,12cyclictest1974205-21taskset23:55:573
155319999171,12cyclictest1904012-21taskset23:11:423
155319999171,12cyclictest1754454-21taskset21:35:353
155319999171,12cyclictest1696874-21taskset21:00:163
155319999171,12cyclictest1658051-21chrt20:30:133
155319999171,12cyclictest1632500-21chrt20:10:123
155319999171,12cyclictest1580974-21taskset19:29:553
155319999170,13cyclictest1625561-21taskset20:01:543
17010882160,4sleep21701502-21cut21:00:202
1553199991613,1cyclictest0-21swapper/323:50:173
1553199991613,1cyclictest0-21swapper/322:05:163
155319999161,12cyclictest1809729-21taskset22:11:213
155319999161,12cyclictest1777969-21taskset21:50:323
155319999161,12cyclictest1644685-21taskset20:16:213
155319999161,12cyclictest1568590-21taskset19:20:133
20073712153,10sleep086188-21systemd-journal00:20:090
17629862151,10sleep21762992-21ssh21:42:262
18649842141,4sleep0222-21plymouthd22:47:060
17222952141,9sleep11722389-21ntpq21:15:231
20211692131,9sleep02021183-21ssh00:25:290
17555332131,9sleep21755539-21ssh21:38:362
17372472130,9sleep11737953-21sed21:25:211
16929082130,10sleep11694772-21cut20:55:171
16895092136,5sleep01593826-21kworker/0:0+kacpid20:51:550
20131012120,3sleep12013327-21users00:20:301
18414922120,9sleep01841498-21ssh22:32:230
17264202120,10sleep01727574-21cat21:20:180
16762072121,8sleep01676310-21/usr/sbin/munin20:40:250
16449712121,8sleep01645011-21systemctl20:20:000
16270132120,8sleep01627844-21cut20:05:170
16068902121,3sleep21606923-21apt-get19:50:112
19584322111,7sleep11958437-21ssh23:45:371
19511412111,7sleep21951147-21ssh23:42:052
19404362110,8sleep21941905-21latency23:35:202
19148212111,7sleep01916436-21kthreadcore23:20:180
18349442112,5sleep21834977-21apt-get22:30:122
17388392110,8sleep21738843-21ssh21:25:502
15529162110,3sleep2222-21plymouthd19:08:182
20283002100,2sleep02028391-21ssh00:30:220
20164652101,6sleep12017412-21kthreadcore00:25:181
19823392101,5sleep11982315-40updatedb.plocat00:01:451
19283952101,6sleep1222-21plymouthd23:29:141
19207562100,3sleep1222-21plymouthd23:24:441
18575042105,2sleep01787776-21kworker/u16:2-rpciod22:43:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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