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2025-05-03 - 02:13
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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 Sat May 03, 2025 00:50:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2146329388,2sleep10-21swapper/119:05:261
2164928549,30sleep20-21swapper/219:05:272
2193628247,29sleep30-21swapper/319:09:213
2191527845,29sleep00-21swapper/019:09:010
2171427743,30sleep60-21swapper/619:06:116
2188627662,10sleep70-21swapper/719:08:377
2170427541,29sleep50-21swapper/519:06:025
2190127439,30sleep40-21swapper/419:08:494
272412480,0sleep40-21swapper/400:15:224
59062460,0sleep40-21swapper/423:02:364
97322410,0sleep60-21swapper/622:01:536
22413993332,0cyclictest0-21swapper/219:10:142
22416993028,1cyclictest0-21swapper/519:10:145
2241899250,0cyclictest0-21swapper/722:29:177
22416992315,8cyclictest25369-21munin-node23:22:355
154902230,0sleep30-21swapper/300:25:223
2831622110,0sleep00-21swapper/000:00:220
22418992117,4cyclictest734-21gmain22:38:447
22414992121,0cyclictest0-21swapper/323:38:013
22417991910,0cyclictest0-21swapper/622:58:586
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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