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2026-03-24 - 12:01
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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 Tue Mar 24, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911050,4ptp4l401ktimersoftd/320:02:543
325962760,2sleep30-21swapper/301:33:113
26042670,5sleep1233-21systemd-journal20:16:121
327442630,4sleep2321ktimersoftd/222:15:412
29678996147,7cyclictest33-21ksoftirqd/200:11:302
11732580,2sleep20-21swapper/222:48:412
294562574,10sleep10-21swapper/120:04:441
33312540,2sleep10-21swapper/120:16:281
320782540,4sleep332034-21munin-node20:11:123
292812544,39sleep00-21swapper/020:02:290
295402514,34sleep20-21swapper/220:05:502
121162430,3sleep20-21swapper/222:26:372
121162430,3sleep20-21swapper/222:26:372
106891390,1ptp4l401ktimersoftd/323:34:423
106891390,1ptp4l401ktimersoftd/323:27:153
106891390,1ptp4l401ktimersoftd/322:35:423
106891390,1ptp4l401ktimersoftd/322:25:453
106891390,1ptp4l401ktimersoftd/301:03:053
106891390,0ptp4l401ktimersoftd/323:21:293
2968299382,30cyclictest19512-21ssh23:41:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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