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2026-01-05 - 09:25
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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 50 highest latencies:
System rackeslot2.osadl.org (updated Mon Jan 05, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122192321000,2sleep20-21swapper/221:28:142
14036452700,1sleep10-21swapper/123:08:161
12835492570,1sleep01191439-21diskmemload22:03:110
15476322320,1sleep10-21swapper/100:28:201
1043639993024,2cyclictest134050irq/121-eno100:00:021
1043640992421,1cyclictest0-21swapper/200:00:012
1043639992418,2cyclictest134050irq/121-eno100:20:021
1043640992220,1cyclictest0-21swapper/222:40:022
1043640992214,1cyclictest0-21swapper/223:00:012
1043639992219,2cyclictest1361225-21apt-key22:45:011
1043638992213,5cyclictest1269406-21kthreadcore21:53:160
1043638992212,5cyclictest0-21swapper/023:05:010
2902298210,6rtkit-daemon1191439-21diskmemload22:30:300
2902298210,3rtkit-daemon257-21systemd-journal21:55:450
1043639992118,2cyclictest1290-21dbus-daemon22:20:021
1043639992118,2cyclictest1173318-21wc20:55:011
1043638992118,2cyclictest1296-21polkitd19:15:020
104363899210,7cyclictest1064570-21apt-get19:28:100
104363899210,16cyclictest1191439-21diskmemload21:20:170
104363899210,16cyclictest0-21swapper/021:12:190
2902298200,5rtkit-daemon0-21swapper/019:23:560
1043640992017,1cyclictest0-21swapper/223:40:012
1043640992017,1cyclictest0-21swapper/221:45:012
1043640992017,1cyclictest0-21swapper/220:30:462
1043640992017,1cyclictest0-21swapper/220:25:002
1043640992017,1cyclictest0-21swapper/219:15:012
1043640992011,2cyclictest0-21swapper/222:17:002
104363899209,6cyclictest0-21swapper/000:20:010
1043638992015,1cyclictest0-21swapper/023:53:400
1043638992014,5cyclictest1417817-21df_inode23:18:090
1043638992010,9cyclictest1370522-21true22:50:010
1043638992010,5cyclictest0-21swapper/022:08:130
1043640991916,1cyclictest0-21swapper/223:23:092
1043640991916,1cyclictest0-21swapper/222:33:152
1043640991916,1cyclictest0-21swapper/222:13:102
1043640991916,1cyclictest0-21swapper/220:03:152
1043640991916,1cyclictest0-21swapper/200:38:172
1043640991916,1cyclictest0-21swapper/200:28:082
1043640991915,2cyclictest0-21swapper/221:08:192
1043639991916,2cyclictest3649415-1atop23:00:011
1043639991916,2cyclictest1296-21polkitd19:40:001
1043639991916,2cyclictest1296-21polkitd19:40:001
1043639991916,2cyclictest1191703-21latency_hist21:10:011
1043639991915,1cyclictest134050irq/121-eno121:31:381
1043639991910,4cyclictest0-21swapper/121:23:171
104363899198,6cyclictest0-21swapper/023:33:130
104363899198,6cyclictest0-21swapper/021:43:070
104363899198,4cyclictest1325449-21kworker/u16:1-rpciod00:31:000
1043638991916,2cyclictest1313-21gmain19:40:000
1043638991916,2cyclictest1313-21gmain19:40:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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