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2026-04-06 - 20:59
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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 Mon Apr 06, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16068482269190,28sleep00-21swapper/007:09:440
16066502265188,27sleep10-21swapper/107:07:361
179699590,4rtkit-daemon1795-21rtkit-daemon08:45:211
179699580,4rtkit-daemon1795-21rtkit-daemon08:21:311
179699580,3rtkit-daemon1795-21rtkit-daemon08:28:271
179699530,4rtkit-daemon1795-21rtkit-daemon10:59:130
179699520,4rtkit-daemon1795-21rtkit-daemon10:05:100
179699510,3rtkit-daemon1795-21rtkit-daemon12:34:090
179699500,3rtkit-daemon1795-21rtkit-daemon07:11:571
179699470,9rtkit-daemon0-21swapper/011:45:370
16744852460,4sleep10-21swapper/109:33:501
16609212450,3sleep10-21swapper/109:15:131
179699410,4rtkit-daemon1656749-21diskmemload10:50:470
179699400,3rtkit-daemon1795-21rtkit-daemon10:39:081
179699380,3rtkit-daemon0-21swapper/110:41:481
179699370,6rtkit-daemon1767620-21ssh11:43:201
179699370,3rtkit-daemon0-21swapper/110:27:571
179699360,4rtkit-daemon1795-21rtkit-daemon12:35:001
179699360,4rtkit-daemon1656749-21diskmemload10:50:511
179699360,3rtkit-daemon0-21swapper/108:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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