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2026-05-01 - 17:33
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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 01, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40028362260186,19sleep10-21swapper/107:07:091
40029682252209,28sleep00-21swapper/007:08:320
41315042570,3sleep00-21swapper/010:53:440
179699570,4rtkit-daemon1795-21rtkit-daemon11:56:370
40967902540,4sleep00-21swapper/010:07:340
179699540,4rtkit-daemon1795-21rtkit-daemon10:44:140
179699520,4rtkit-daemon1795-21rtkit-daemon08:34:090
40104152500,4sleep14009798-21/usr/sbin/munin07:25:191
179699500,4rtkit-daemon1795-21rtkit-daemon12:15:511
179699500,4rtkit-daemon1795-21rtkit-daemon10:59:010
179699500,3rtkit-daemon1795-21rtkit-daemon08:53:151
179699480,4rtkit-daemon1795-21rtkit-daemon11:12:170
40710792440,4sleep00-21swapper/009:34:490
179699440,3rtkit-daemon1795-21rtkit-daemon12:13:371
179699430,3rtkit-daemon1795-21rtkit-daemon08:21:410
179699380,3rtkit-daemon0-21swapper/111:23:021
179699370,3rtkit-daemon0-21swapper/010:23:210
179699370,3rtkit-daemon0-21swapper/010:11:220
40725252360,1sleep00-21swapper/009:35:230
179699360,4rtkit-daemon1795-21rtkit-daemon10:31:280
179699360,4rtkit-daemon1795-21rtkit-daemon09:40:360
179699360,3rtkit-daemon0-21swapper/109:46:321
179699360,3rtkit-daemon0-21swapper/012:36:070
179699360,3rtkit-daemon0-21swapper/011:14:041
179699360,3rtkit-daemon0-21swapper/007:44:370
179699350,3rtkit-daemon0-21swapper/111:50:551
179699350,3rtkit-daemon0-21swapper/111:35:511
179699350,3rtkit-daemon0-21swapper/107:32:211
179699350,3rtkit-daemon0-21swapper/008:28:420
400325899343,6cyclictest26-21ksoftirqd/107:45:001
400325899341,10cyclictest4064620-21/usr/sbin/munin09:25:221
400325899340,8cyclictest4113560-21apt-get10:30:121
400325899340,11cyclictest26-21ksoftirqd/110:35:161
179699340,5rtkit-daemon4125004-21apt-get10:45:131
179699340,3rtkit-daemon0-21swapper/109:50:171
179699340,3rtkit-daemon0-21swapper/008:15:020
179699340,3rtkit-daemon0-21swapper/008:11:500
179699340,3rtkit-daemon0-21swapper/007:48:460
40598612330,3chrt0-21swapper/009:20:120
400325899330,9cyclictest4106009-21apt-get10:20:121
400325899330,7cyclictest4183119-21apt-get12:00:141
400325899330,10cyclictest4109671-21apt-get10:25:131
179699330,3rtkit-daemon1795-21rtkit-daemon11:01:210
179699330,3rtkit-daemon1795-21rtkit-daemon10:45:190
400325899326,9cyclictest26-21ksoftirqd/111:30:221
4003258993229,2cyclictest4035972-21kworker/1:009:01:111
400325899320,7cyclictest4102148-21apt-get10:15:121
179699320,4rtkit-daemon1795-21rtkit-daemon09:21:071
179699320,3rtkit-daemon0-21swapper/107:18:570
179699320,3rtkit-daemon0-21swapper/008:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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