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2024-07-27 - 03:21
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot8.osadl.org (updated Fri Jul 26, 2024 12:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2888859915716,140cyclictest0-21swapper/1509:30:027
288869991200,119cyclictest0-21swapper/009:30:020
288878991160,1cyclictest0-21swapper/809:30:0314
288874991160,1cyclictest0-21swapper/409:30:0210
288883991150,0cyclictest0-21swapper/1309:30:035
288870991140,0cyclictest0-21swapper/109:30:021
28888199103101,2cyclictest3547244-21chrome11:00:193
288877999817,0cyclictest0-21swapper/708:30:2313
288877999817,0cyclictest0-21swapper/708:30:2313
288881999514,1cyclictest364367-21ntpq08:30:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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