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2026-05-23 - 01:45
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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 rackcslot4.osadl.org (updated Fri May 22, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17787162265223,28sleep10-21swapper/107:05:481
17789562262220,28sleep00-21swapper/007:08:200
179699730,4rtkit-daemon1795-21rtkit-daemon10:15:121
19093902570,2sleep01909391-21sh10:57:160
179699570,4rtkit-daemon1795-21rtkit-daemon09:56:371
179699550,4rtkit-daemon1795-21rtkit-daemon09:29:001
179699520,4rtkit-daemon1795-21rtkit-daemon10:34:261
179699510,4rtkit-daemon1795-21rtkit-daemon12:22:211
19727322500,6sleep00-21swapper/012:24:300
19279362490,3sleep10-21swapper/111:22:331
179699490,3rtkit-daemon1795-21rtkit-daemon11:55:551
179699410,12rtkit-daemon0-21swapper/112:18:260
19387092400,1sleep10-21swapper/111:37:141
179699400,5rtkit-daemon1940975-21ntp_states11:40:221
18744362390,3chrt0-21swapper/010:10:140
179699390,4rtkit-daemon1795-21rtkit-daemon11:02:160
18727502380,1sleep00-21swapper/010:07:050
179699380,5rtkit-daemon1976632-21cron12:29:590
179699380,3rtkit-daemon0-21swapper/109:14:230
177927299372,13cyclictest1954693-21apt-get12:00:141
179699360,5rtkit-daemon1795-21rtkit-daemon11:33:101
179699360,5rtkit-daemon1780666-21uptime07:10:240
179699360,4rtkit-daemon1795-21rtkit-daemon10:25:251
179699360,3rtkit-daemon0-21swapper/108:49:151
179699350,4rtkit-daemon1795-21rtkit-daemon10:50:521
179699350,4rtkit-daemon1795-21rtkit-daemon09:49:050
179699350,3rtkit-daemon0-21swapper/108:11:361
179699350,3rtkit-daemon0-21swapper/012:13:270
179699350,3rtkit-daemon0-21swapper/007:35:161
177927299353,6cyclictest26-21ksoftirqd/111:15:231
179699340,3rtkit-daemon0-21swapper/107:50:331
179699340,3rtkit-daemon0-21swapper/012:31:021
179699340,3rtkit-daemon0-21swapper/011:03:041
179699340,3rtkit-daemon0-21swapper/010:05:271
177927299344,9cyclictest1967553-21sh12:15:581
177927299344,8cyclictest1874212-21apt-get10:10:131
177927299344,7cyclictest1907271-21apt-get10:55:121
179699330,4rtkit-daemon1795-21rtkit-daemon09:24:211
179699330,3rtkit-daemon0-21swapper/108:59:100
177927299333,7cyclictest1918243-21apt-get11:10:121
1779272993310,9cyclictest26-21ksoftirqd/107:20:001
177927299330,17cyclictest1814472-21/usr/sbin/munin08:35:241
179699320,4rtkit-daemon1795-21rtkit-daemon09:06:041
179699320,4rtkit-daemon1795-21rtkit-daemon08:04:061
179699320,4rtkit-daemon1795-21rtkit-daemon07:46:271
179699320,3rtkit-daemon0-21swapper/110:27:050
179699320,3rtkit-daemon0-21swapper/011:07:421
177927299324,7cyclictest1892706-21apt-get10:35:131
177927299323,7cyclictest26-21ksoftirqd/109:10:191
1779272993211,7cyclictest26-21ksoftirqd/108:40:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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