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2026-04-28 - 23:38
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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 rack5slot2.osadl.org (updated Tue Apr 28, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274022199183,11sleep10-21swapper/107:07:311
273762197180,12sleep00-21swapper/007:07:110
274862186170,12sleep20-21swapper/207:08:362
274672186169,12sleep30-21swapper/307:08:213
74152490,0sleep30-21swapper/310:51:443
5592480,0sleep00-21swapper/010:48:480
144792470,0sleep20-21swapper/211:27:022
142352460,0sleep10-21swapper/111:59:031
292632440,0sleep10-21swapper/109:11:571
220062410,0sleep00-21swapper/010:43:200
85242120,0sleep10-21swapper/107:35:011
161932120,0sleep20-21swapper/209:53:032
277769970,6cyclictest24006-21diskmemload11:05:133
277669960,1cyclictest31150-21ssh10:31:370
277769950,5cyclictest0-21swapper/309:18:083
277769950,4cyclictest18806-21df11:45:123
277769950,4cyclictest1158-21rm10:17:053
277709950,5cyclictest11448-21perf08:45:002
277709950,5cyclictest0-21swapper/212:10:152
277709950,5cyclictest0-21swapper/211:07:502
277709950,5cyclictest0-21swapper/209:44:452
277709950,0cyclictest0-21swapper/210:41:122
277679951,2cyclictest0-21swapper/109:40:131
277669954,1cyclictest3-21ksoftirqd/008:30:100
277669954,1cyclictest3-21ksoftirqd/007:45:110
277669953,1cyclictest3931-21ssh12:10:000
1312250,0sleep30-21swapper/311:36:253
8320240,0sleep10-21swapper/110:05:141
277769944,0cyclictest0-21swapper/310:00:193
277769944,0cyclictest0-21swapper/307:55:283
277769944,0cyclictest0-21swapper/307:15:093
277769941,3cyclictest802-21snmpd10:12:353
277769941,3cyclictest30048-21sh10:30:573
277769940,4cyclictest0-21swapper/312:26:393
277769940,4cyclictest0-21swapper/312:20:113
277769940,4cyclictest0-21swapper/312:10:103
277769940,4cyclictest0-21swapper/312:05:123
277769940,4cyclictest0-21swapper/311:50:103
277769940,4cyclictest0-21swapper/311:40:013
277769940,4cyclictest0-21swapper/311:25:103
277769940,4cyclictest0-21swapper/311:15:133
277769940,4cyclictest0-21swapper/310:45:373
277769940,4cyclictest0-21swapper/310:35:123
277769940,4cyclictest0-21swapper/310:22:013
277769940,4cyclictest0-21swapper/310:05:133
277769940,4cyclictest0-21swapper/309:55:203
277769940,4cyclictest0-21swapper/309:42:113
277769940,4cyclictest0-21swapper/309:30:033
277769940,4cyclictest0-21swapper/309:25:113
277769940,4cyclictest0-21swapper/309:20:113
277769940,4cyclictest0-21swapper/309:10:113
277769940,4cyclictest0-21swapper/308:16:593
277769940,4cyclictest0-21swapper/308:10:103
277769940,4cyclictest0-21swapper/307:25:123
277769940,3cyclictest32399-21df09:45:133
277769940,3cyclictest30327-21ls07:15:013
277769940,3cyclictest29581-21ls11:35:003
277769940,3cyclictest28104-21sh12:37:283
277769940,3cyclictest24688-21sh11:00:153
277769940,3cyclictest24384-21sed12:20:003
277769940,3cyclictest18610-21sh11:13:303
277769940,3cyclictest16821-21sh12:31:433
277769940,3cyclictest16497-21ssh10:25:033
277769940,3cyclictest16240-21ssh12:00:013
277769940,3cyclictest14850-21ssh09:52:133
277769940,3cyclictest14774-21sh10:40:023
277769940,3cyclictest12255-21tune2fs08:45:153
277769940,3cyclictest11178-21ssh09:35:113
277769940,3cyclictest0-21swapper/311:55:013
277769940,3cyclictest0-21swapper/308:20:133
277769940,1cyclictest9460-21fschecks_time07:35:143
277709944,0cyclictest31-21ksoftirqd/211:55:142
277709944,0cyclictest31-21ksoftirqd/211:55:002
277709944,0cyclictest31-21ksoftirqd/208:00:122
277709943,1cyclictest5452-21grep10:35:142
277709943,1cyclictest16442-21/usr/sbin/munin07:50:182
277709943,1cyclictest11667-21/usr/sbin/munin08:45:122
277709943,1cyclictest1103-21tr09:30:142
277709941,2cyclictest0-21swapper/208:30:122
277709941,2cyclictest0-21swapper/207:20:112
277709941,1cyclictest29785-21grep08:15:132
277709941,1cyclictest0-21swapper/211:40:122
277709941,1cyclictest0-21swapper/209:45:112
277709941,1cyclictest0-21swapper/207:45:112
277709940,4cyclictest21761-21/usr/sbin/munin09:05:212
277709940,4cyclictest12754-21/usr/sbin/munin09:20:122
277709940,4cyclictest0-21swapper/211:35:132
277709940,4cyclictest0-21swapper/209:19:262
277709940,4cyclictest0-21swapper/209:12:362
277709940,3cyclictest31894-21apt-get11:20:122
277709940,3cyclictest26679-21sh12:05:112
277709940,3cyclictest16078-21sh12:15:162
277709940,2cyclictest18666-21ls11:45:132
277709940,1cyclictest6704-21/usr/sbin/munin08:35:122
277709940,1cyclictest3076-21/usr/sbin/munin10:50:192
277709940,1cyclictest28423-21diskstats07:10:162
277709940,1cyclictest25346-21ntp_states08:05:172
277709940,1cyclictest1765-21/usr/sbin/munin08:25:172
277709940,1cyclictest17299-21tune2fs12:00:152
277709940,0cyclictest0-21swapper/207:40:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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