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2026-04-17 - 01:52
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Thu Apr 16, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
779522630,7sleep07792-21cstates08:14:250
2038421740,3sleep3980199cyclictest11:40:583
1031921680,2sleep3980199cyclictest12:37:033
1068911590,4ptp4l401ktimersoftd/308:15:173
1419521570,4sleep1978699cyclictest11:34:381
130472950,3sleep0978099cyclictest11:34:290
3652660,2sleep30-21swapper/310:49:153
106891650,1ptp4l401ktimersoftd/311:50:353
21142640,2sleep20-21swapper/211:23:272
106891640,1ptp4l401ktimersoftd/310:33:523
139802600,4sleep1978699cyclictest13:14:191
106891600,1ptp4l401ktimersoftd/312:16:193
106891580,1ptp4l401ktimersoftd/311:06:543
106891580,1ptp4l401ktimersoftd/311:06:543
106891580,1ptp4l401ktimersoftd/310:22:313
106891570,1ptp4l401ktimersoftd/311:28:373
106891570,1ptp4l401ktimersoftd/309:39:193
240702560,2sleep00-21swapper/010:39:330
106891550,1ptp4l401ktimersoftd/313:26:403
284102520,1sleep00-21swapper/012:54:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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