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2025-07-17 - 15:02
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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 20 highest latencies:
System rack5slot3.osadl.org (updated Thu Jul 17, 2025 12:50:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2252129884,10sleep70-21swapper/707:06:287
2255629783,10sleep30-21swapper/307:06:563
2245528253,25sleep60-21swapper/607:05:316
2276227843,30sleep50-21swapper/507:09:555
2262027843,30sleep20-21swapper/207:07:512
2018027744,29sleep10-21swapper/107:05:101
2267427643,29sleep00-21swapper/007:08:380
2264927643,29sleep40-21swapper/407:08:174
244862510,0sleep60-21swapper/611:10:546
159202510,0sleep00-21swapper/007:50:000
43792460,0sleep10-21swapper/111:01:051
217262450,0sleep00-21swapper/009:51:050
185502430,0sleep70-21swapper/710:20:517
23200994242,0cyclictest0-21swapper/211:20:002
23200993433,0cyclictest0-21swapper/207:15:122
23203992828,0cyclictest0-21swapper/510:28:435
23203992828,0cyclictest0-21swapper/510:28:435
23198992525,0cyclictest0-21swapper/007:10:180
23204992410,14cyclictest0-21swapper/610:18:066
23203992421,2cyclictest14757-21nscd11:47:465
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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