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2026-03-26 - 23:30
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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 (updated Thu Mar 26, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35214082264185,29sleep10-21swapper/107:07:221
35216212246179,52sleep00-21swapper/007:09:390
179699680,8rtkit-daemon0-21swapper/010:27:261
35769982660,4sleep10-21swapper/109:15:261
179699570,6rtkit-daemon1795-21rtkit-daemon12:00:350
36043962530,3sleep0161rcuc/009:51:310
179699520,4rtkit-daemon1795-21rtkit-daemon12:38:391
179699520,3rtkit-daemon1795-21rtkit-daemon10:29:160
179699500,4rtkit-daemon1795-21rtkit-daemon07:41:350
179699500,4rtkit-daemon1795-21rtkit-daemon07:11:181
179699500,3rtkit-daemon1795-21rtkit-daemon12:08:040
179699480,3rtkit-daemon1795-21rtkit-daemon11:31:570
179699480,3rtkit-daemon1795-21rtkit-daemon09:49:420
179699480,3rtkit-daemon1795-21rtkit-daemon07:53:340
179699470,4rtkit-daemon1795-21rtkit-daemon09:05:440
179699470,3rtkit-daemon1795-21rtkit-daemon11:14:540
179699430,3rtkit-daemon0-21swapper/009:16:330
179699390,3rtkit-daemon0-21swapper/010:09:490
179699370,6rtkit-daemon3667271-21ntp_states11:15:211
179699370,5rtkit-daemon3556893-21df08:35:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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