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2025-12-21 - 01:17
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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 Dec 20, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39236802269185,29sleep00-21swapper/007:05:090
39252312259187,27sleep10-21swapper/107:07:521
39583452630,3chrt3958341-21apt08:30:131
179699610,3rtkit-daemon1795-21rtkit-daemon07:28:030
179699570,4rtkit-daemon1795-21rtkit-daemon12:14:460
179699550,4rtkit-daemon1795-21rtkit-daemon08:40:221
179699550,4rtkit-daemon1795-21rtkit-daemon08:28:010
179699550,4rtkit-daemon1795-21rtkit-daemon07:54:180
179699540,4rtkit-daemon1795-21rtkit-daemon12:29:260
179699530,4rtkit-daemon1795-21rtkit-daemon10:59:440
179699520,4rtkit-daemon1795-21rtkit-daemon08:23:500
179699520,3rtkit-daemon1795-21rtkit-daemon08:10:260
179699510,4rtkit-daemon1795-21rtkit-daemon12:37:460
179699490,4rtkit-daemon1795-21rtkit-daemon12:22:360
179699490,4rtkit-daemon1795-21rtkit-daemon11:46:520
179699490,4rtkit-daemon1795-21rtkit-daemon10:26:350
179699490,4rtkit-daemon1795-21rtkit-daemon09:46:350
179699480,4rtkit-daemon1795-21rtkit-daemon09:33:370
179699480,4rtkit-daemon1795-21rtkit-daemon07:58:460
179699480,4rtkit-daemon1795-21rtkit-daemon07:16:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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