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2025-12-09 - 05:24
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot7.osadl.org (updated Tue Dec 09, 2025 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3954224542209,95sleep00-21swapper17:38:190
41869916818,125cyclictest15937-21apt-get20:45:280
41869916718,123cyclictest20985-21apt-get21:00:270
41869916718,122cyclictest2460-21apt-get20:05:300
41869916618,122cyclictest12577-21apt-get20:35:270
41869916518,120cyclictest2397-21fw_conntrack21:41:080
41869916515,126cyclictest20459-21munin-run22:35:070
41869916422,117cyclictest30395-21memory19:51:280
41869916421,119cyclictest29805-21fw_conntrack21:26:110
41869916317,122cyclictest21035-21ssh22:36:200
41869916317,120cyclictest9628-21irqstats20:26:140
41869916221,118cyclictest17889-21df20:50:470
41869916218,119cyclictest5831-21apt-get20:15:340
41869916217,120cyclictest15900-21fw_conntrack22:21:100
41869916217,120cyclictest11821-21users20:31:560
41869916216,122cyclictest13811-21apt-get18:30:230
41869916216,121cyclictest11400-21users22:06:540
41869916119,118cyclictest24244-21munin-run21:10:080
41869916118,117cyclictest15600-21apt-get18:40:230
41869916115,122cyclictest27249-21apt-get22:55:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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