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2025-12-21 - 04:12
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Sun Dec 21, 2025 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12895892264185,28sleep00-21swapper/019:05:180
12906902258184,60sleep10-21swapper/119:05:321
179699520,4rtkit-daemon1795-21rtkit-daemon23:20:211
179699510,3rtkit-daemon1795-21rtkit-daemon21:02:530
179699500,3rtkit-daemon1795-21rtkit-daemon21:15:420
179699470,3rtkit-daemon1795-21rtkit-daemon22:51:150
179699470,3rtkit-daemon1795-21rtkit-daemon19:14:510
14185702460,4chrt0-21swapper/000:25:170
179699360,4rtkit-daemon1795-21rtkit-daemon00:19:480
179699360,3rtkit-daemon0-21swapper/020:57:380
129124399363,10cyclictest1362451-21apt-get22:05:171
129124399360,34cyclictest0-21swapper/121:10:271
179699350,3rtkit-daemon0-21swapper/119:57:251
179699350,3rtkit-daemon0-21swapper/100:24:301
179699340,5rtkit-daemon1795-21rtkit-daemon23:03:370
179699340,4rtkit-daemon1795-21rtkit-daemon20:53:380
179699340,3rtkit-daemon1795-21rtkit-daemon19:47:580
179699340,3rtkit-daemon1795-21rtkit-daemon19:17:090
179699340,3rtkit-daemon0-21swapper/123:17:270
179699340,3rtkit-daemon0-21swapper/122:18:030
179699340,3rtkit-daemon0-21swapper/021:25:030
179699330,4rtkit-daemon1795-21rtkit-daemon22:10:121
179699330,3rtkit-daemon1795-21rtkit-daemon20:20:250
179699330,3rtkit-daemon1795-21rtkit-daemon00:13:460
179699330,3rtkit-daemon0-21swapper/119:35:110
179699330,3rtkit-daemon0-21swapper/019:17:141
179699320,3rtkit-daemon0-21swapper/120:48:310
179699310,4rtkit-daemon1795-21rtkit-daemon22:01:531
179699310,3rtkit-daemon1795-21rtkit-daemon23:14:001
179699310,3rtkit-daemon1795-21rtkit-daemon21:37:360
179699310,3rtkit-daemon0-21swapper/123:50:050
179699310,3rtkit-daemon0-21swapper/119:32:160
129124399312,7cyclictest1414243-40unattended-upgr00:14:161
179699300,4rtkit-daemon1795-21rtkit-daemon20:39:550
179699300,3rtkit-daemon1795-21rtkit-daemon20:34:501
179699300,3rtkit-daemon0-21swapper/123:59:250
179699300,3rtkit-daemon0-21swapper/120:33:170
179699300,3rtkit-daemon0-21swapper/120:10:270
179699300,3rtkit-daemon0-21swapper/119:57:500
179699300,3rtkit-daemon0-21swapper/119:23:220
179699300,3rtkit-daemon0-21swapper/119:23:210
179699300,3rtkit-daemon0-21swapper/019:35:521
129123999300,6cyclictest1386664-21apt-get23:05:150
179699290,3rtkit-daemon0-21swapper/100:32:060
179699290,3rtkit-daemon0-21swapper/022:49:161
179699290,3rtkit-daemon0-21swapper/021:17:201
179699290,3rtkit-daemon0-21swapper/020:54:241
179699290,23rtkit-daemon1291232-21cyclictest23:24:480
179699280,4rtkit-daemon0-21swapper/020:19:141
179699280,3rtkit-daemon1795-21rtkit-daemon20:27:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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