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2025-07-19 - 06:30
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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 rackaslot8.osadl.org (updated Sat Jul 19, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158132293260,20sleep20-21swapper/219:09:042
158852279245,20sleep00-21swapper/019:09:590
156752267232,23sleep10-21swapper/119:07:141
157322260225,22sleep30-21swapper/319:08:013
110222610,0sleep30-21swapper/322:12:483
282862560,0sleep20-21swapper/223:03:482
327222550,0sleep20-21swapper/222:45:472
308312550,0sleep20-21swapper/200:30:062
291112550,0sleep00-21swapper/019:35:210
20072550,0sleep10-21swapper/122:27:081
132932230,0sleep10-21swapper/121:34:461
28002180,0sleep00-21swapper/000:09:460
90112170,0sleep30-21swapper/321:51:113
123822170,0sleep20-21swapper/223:34:052
257302150,0sleep10-21swapper/122:41:411
230942150,1sleep323093-21fschecks_time20:35:183
274412140,0sleep30-21swapper/300:03:403
196382130,0sleep20-21swapper/222:38:192
202562100,0sleep30-21swapper/322:18:453
1600399105,3cyclictest19982-21systemd-journal19:22:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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