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2026-05-09 - 09:34
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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 May 09, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35333312314270,29sleep00-21swapper/019:09:430
35332032273210,47sleep10-21swapper/119:08:211
179699660,4rtkit-daemon1795-21rtkit-daemon20:16:040
37231832630,4sleep03723182-21date00:20:010
36125472620,5sleep00-21swapper/021:50:000
179699520,4rtkit-daemon1795-21rtkit-daemon22:25:141
179699510,4rtkit-daemon1795-21rtkit-daemon23:02:400
179699500,3rtkit-daemon1795-21rtkit-daemon23:05:230
179699490,4rtkit-daemon1795-21rtkit-daemon23:51:541
179699490,4rtkit-daemon1795-21rtkit-daemon20:22:001
179699490,3rtkit-daemon1795-21rtkit-daemon21:21:241
179699470,3rtkit-daemon1795-21rtkit-daemon22:01:261
36798462460,30sleep03679870-21apt-get23:20:100
179699390,3rtkit-daemon0-21swapper/122:47:081
179699380,6rtkit-daemon3605406-21df21:40:140
179699380,3rtkit-daemon0-21swapper/123:11:011
179699370,4rtkit-daemon1795-21rtkit-daemon21:28:571
179699360,3rtkit-daemon0-21swapper/122:53:481
179699360,3rtkit-daemon0-21swapper/100:07:091
179699360,3rtkit-daemon0-21swapper/100:04:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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