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2025-12-08 - 07:53
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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 Mon Dec 08, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
993125060,7sleep29935-21phc2sys-jitter20:21:292
1985421510,5sleep01093799cyclictest00:31:130
1773911020,4ptp4l401ktimersoftd/320:23:023
95122790,5sleep39513-21sed21:26:403
208502710,2sleep30-21swapper/322:44:003
177391680,1ptp4l401ktimersoftd/323:37:353
4482670,4sleep3446-21grep22:16:303
31352670,2sleep20-21swapper/200:46:452
10937996526,6cyclictest9-21ksoftirqd/020:26:070
177391580,1ptp4l401ktimersoftd/323:11:523
177391580,1ptp4l401ktimersoftd/322:51:473
177391570,1ptp4l401ktimersoftd/323:20:163
10937995746,6cyclictest9-21ksoftirqd/000:11:250
10937995646,5cyclictest9-21ksoftirqd/022:41:230
177391550,1ptp4l401ktimersoftd/300:02:033
177391540,1ptp4l401ktimersoftd/301:05:343
177391540,1ptp4l401ktimersoftd/301:05:343
10937995443,6cyclictest9-21ksoftirqd/000:21:300
10937995443,5cyclictest9-21ksoftirqd/022:21:250
192102530,2sleep00-21swapper/023:17:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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