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2026-03-06 - 23:44
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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 Fri Mar 06, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
133177523710,9sleep01331778-21needreboot07:05:250
13326462267183,28sleep10-21swapper/107:08:171
137772721600,3sleep11377725-21cat09:00:001
15268792760,4sleep10-21swapper/112:27:181
14062302620,6sleep10-21swapper/109:40:241
179699600,5rtkit-daemon1380784-21ntp_states09:05:231
179699600,3rtkit-daemon0-21swapper/110:16:151
179699580,3rtkit-daemon0-21swapper/109:55:561
179699560,3rtkit-daemon0-21swapper/108:44:211
179699560,3rtkit-daemon0-21swapper/108:14:301
179699560,3rtkit-daemon0-21swapper/107:43:351
179699560,3rtkit-daemon0-21swapper/107:43:351
179699550,3rtkit-daemon0-21swapper/110:20:401
179699550,3rtkit-daemon0-21swapper/107:45:291
179699540,3rtkit-daemon0-21swapper/112:22:451
179699540,3rtkit-daemon0-21swapper/109:53:261
179699540,3rtkit-daemon0-21swapper/107:58:351
179699540,3rtkit-daemon0-21swapper/107:31:191
179699530,4rtkit-daemon1795-21rtkit-daemon09:28:321
179699530,3rtkit-daemon0-21swapper/108:19:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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