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2026-04-30 - 20:23
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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 Thu Apr 30, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
75292204188,12sleep10-21swapper/107:06:311
77202186169,12sleep00-21swapper/007:08:590
75782185168,12sleep30-21swapper/307:07:103
7577210084,12sleep20-21swapper/207:07:082
285312490,1sleep328532-21pmu-power12:30:173
208032420,0sleep10-21swapper/107:30:221
30822390,0sleep10-21swapper/109:05:021
79839991,8cyclictest25507-21sshd08:42:203
79839990,8cyclictest2236-21df_inode09:55:143
79839990,7cyclictest5417-21diskmemload10:53:163
79839990,6cyclictest8616-21diskstats07:10:103
79839990,6cyclictest5417-21diskmemload11:21:053
79839990,6cyclictest13943-21ssh10:16:193
79839990,1cyclictest7177-21tr11:00:193
79839990,1cyclictest4656-21sh11:30:303
79709991,4cyclictest21224-21lockfile-create08:40:010
24604290,0sleep30-21swapper/312:28:573
79839980,7cyclictest7472-21wc10:45:123
79839980,7cyclictest6861-21diskstats08:10:123
79839980,7cyclictest5781-21ssh09:40:363
79839980,7cyclictest5417-21diskmemload11:11:483
79839980,7cyclictest32687-21rm11:45:053
79839980,7cyclictest18266-21systemd08:31:163
79839980,1cyclictest6669-21munin-run10:45:003
79839980,1cyclictest4537-21ssh10:11:513
79839980,1cyclictest28318-21grep09:20:243
79839980,1cyclictest26982-21sh09:35:193
79839980,1cyclictest205-21systemd-journal10:38:023
79839980,1cyclictest16060-21dump-pmu-power07:25:003
79839980,1cyclictest14701-21cat09:45:153
79839980,1cyclictest11909-21ssh10:00:123
79839980,0cyclictest28855-21apt-get07:50:123
79839980,0cyclictest1190-21sed08:00:003
79839971,0cyclictest24543-21apt-get11:25:113
79839970,7cyclictest1794-21memory09:00:163
79839970,6cyclictest9643-21hddtemp_smartct08:15:143
79839970,6cyclictest5406-21perl09:25:143
79839970,6cyclictest4851-21irqstats08:05:153
79839970,6cyclictest30960-21df_inode08:55:103
79839970,6cyclictest30727-21rm12:00:043
79839970,6cyclictest29425-21df_inode12:15:103
79839970,6cyclictest27347-21apt08:45:123
79839970,6cyclictest26442-21kworker/3:311:15:053
79839970,6cyclictest19562-21grep07:30:133
79839970,6cyclictest16247-21ssh09:15:113
79839970,6cyclictest1380-21seq08:00:063
79839970,6cyclictest13572-21apt07:20:013
79839970,6cyclictest13136-21df11:35:143
79839970,1cyclictest5618-21hddtemp_smartct12:35:143
79839970,1cyclictest4440-21ntp_states09:05:193
79839970,1cyclictest30214-21perf08:55:003
79839970,1cyclictest27869-21ssh10:55:123
79839970,1cyclictest26156-21latency_hist07:45:003
79839970,1cyclictest17910-21grep11:05:203
79839970,1cyclictest15616-21users08:25:193
79839970,1cyclictest14781-21ssh09:30:063
79839970,1cyclictest13559-21idleruntime-cro08:25:003
79839970,0cyclictest8496-21dpkg10:30:023
79839970,0cyclictest6593-21apt-get12:20:093
79839970,0cyclictest5879-21apt-get09:10:113
79839970,0cyclictest5417-21diskmemload12:10:053
79839970,0cyclictest26385-21apt-get07:45:113
79839970,0cyclictest23807-21apt-get09:50:113
79839970,0cyclictest21426-21apt-get07:35:103
79839970,0cyclictest20786-21ssh11:55:123
79839970,0cyclictest0-21swapper/312:05:103
79839970,0cyclictest0-21swapper/311:50:113
79839970,0cyclictest0-21swapper/311:40:093
79839970,0cyclictest0-21swapper/310:25:113
79839970,0cyclictest0-21swapper/310:20:093
79839970,0cyclictest0-21swapper/310:05:283
79839970,0cyclictest0-21swapper/308:35:113
79799970,7cyclictest23976-21grep08:42:032
79709973,4cyclictest8190-21ssh12:05:010
79709972,5cyclictest26500-21kworker/0:112:28:560
79709972,5cyclictest26500-21kworker/0:112:17:130
79709972,5cyclictest26500-21kworker/0:111:57:250
79709972,5cyclictest26500-21kworker/0:111:42:300
79709972,5cyclictest26500-21kworker/0:111:34:200
79709972,5cyclictest26500-21kworker/0:111:28:290
79709972,5cyclictest26500-21kworker/0:111:10:140
79709972,5cyclictest25420-21kworker/0:010:51:500
79709972,5cyclictest24480-21kworker/0:310:06:150
79709972,5cyclictest24480-21kworker/0:309:58:200
79709972,5cyclictest24480-21kworker/0:309:51:020
79709972,5cyclictest24480-21kworker/0:309:33:210
79709972,5cyclictest24480-21kworker/0:309:24:340
79709971,6cyclictest26500-21kworker/0:112:21:300
79709971,6cyclictest26500-21kworker/0:111:00:190
79709971,6cyclictest25420-21kworker/0:010:49:120
79709971,6cyclictest24480-21kworker/0:310:36:250
79839960,1cyclictest16474-21dpkg07:25:013
79749962,3cyclictest0-21swapper/108:45:121
79749961,3cyclictest0-21swapper/112:30:101
79709963,3cyclictest27910-21kworker/0:107:20:120
79709962,4cyclictest26500-21kworker/0:112:35:050
79709962,4cyclictest26500-21kworker/0:112:34:150
79709962,4cyclictest26500-21kworker/0:111:46:020
79709962,4cyclictest26500-21kworker/0:110:55:410
79709962,4cyclictest24480-21kworker/0:310:15:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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