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2025-05-13 - 11:54
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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 rack1slot1.osadl.org (updated Tue May 13, 2025 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162662229157,25sleep30-21swapper/319:06:553
144002229156,24sleep00-21swapper/019:05:110
143922202163,26sleep20-21swapper/219:05:062
163762200161,26sleep10-21swapper/119:08:231
2596921360,0sleep225971-21ssh00:15:182
52472780,0sleep10-21swapper/100:30:201
215292620,0sleep00-21swapper/023:29:340
1659499150,14cyclictest9196-21diskmemload23:00:192
1659499150,14cyclictest0-21swapper/222:50:132
1659499150,14cyclictest0-21swapper/222:00:132
1659499150,1cyclictest0-21swapper/221:00:122
1659499140,8cyclictest254-21systemd-journal20:25:012
1659499140,13cyclictest0-21swapper/223:30:182
1659499140,13cyclictest0-21swapper/223:10:162
1659499140,13cyclictest0-21swapper/222:55:172
1659499140,13cyclictest0-21swapper/222:20:202
1659499140,13cyclictest0-21swapper/200:22:142
1659499140,1cyclictest0-21swapper/221:44:572
1659499132,10cyclictest22215-21apt-get19:20:162
1659499130,12cyclictest0-21swapper/200:10:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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