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2026-01-01 - 21:30
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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 rackcslot4.osadl.org (updated Thu Jan 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67689823370,10sleep0676873-21fschecks_time07:05:200
6780462258184,59sleep10-21swapper/107:07:271
179699760,4rtkit-daemon1795-21rtkit-daemon09:27:310
7520672620,5sleep10-21swapper/109:40:351
7898512500,4sleep10-21swapper/110:30:121
179699490,3rtkit-daemon1795-21rtkit-daemon09:25:191
179699480,4rtkit-daemon1795-21rtkit-daemon11:17:141
179699480,3rtkit-daemon1795-21rtkit-daemon12:30:100
7547602470,1chrt754761-21/usr/sbin/munin09:45:151
179699470,4rtkit-daemon1795-21rtkit-daemon09:06:220
179699460,3rtkit-daemon1795-21rtkit-daemon11:21:460
179699430,4rtkit-daemon714791-21apt-get08:40:110
179699390,4rtkit-daemon0-21swapper/008:36:150
179699390,3rtkit-daemon0-21swapper/007:37:171
7485222370,5sleep00-21swapper/009:36:110
179699370,5rtkit-daemon758482-21runrttasks09:50:110
179699370,4rtkit-daemon726737-21diskmemload09:10:280
179699370,4rtkit-daemon0-21swapper/007:36:210
179699370,3rtkit-daemon0-21swapper/110:57:211
179699370,3rtkit-daemon0-21swapper/110:46:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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