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2026-03-21 - 15:17
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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 20 highest latencies:
System rackcslot4.osadl.org (updated Sat Mar 21, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39165502263182,27sleep00-21swapper/007:08:530
39165772261186,59sleep10-21swapper/107:09:121
179699610,4rtkit-daemon1795-21rtkit-daemon10:50:450
179699540,4rtkit-daemon1795-21rtkit-daemon11:55:021
179699520,4rtkit-daemon1795-21rtkit-daemon07:50:140
179699500,3rtkit-daemon1795-21rtkit-daemon07:36:430
179699490,3rtkit-daemon1795-21rtkit-daemon09:13:160
179699490,3rtkit-daemon1795-21rtkit-daemon08:48:180
179699490,3rtkit-daemon1795-21rtkit-daemon08:13:100
179699470,4rtkit-daemon1795-21rtkit-daemon11:01:590
179699470,3rtkit-daemon1795-21rtkit-daemon12:13:040
179699470,3rtkit-daemon1795-21rtkit-daemon08:39:020
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699420,9rtkit-daemon4083294-21rm11:54:170
179699390,6rtkit-daemon1795-21rtkit-daemon10:25:140
179699380,4rtkit-daemon1795-21rtkit-daemon09:50:111
179699380,3rtkit-daemon0-21swapper/112:22:421
179699380,3rtkit-daemon0-21swapper/011:26:350
179699370,3rtkit-daemon1795-21rtkit-daemon09:00:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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