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2026-09-01 - 13:19
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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 Sep 01, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911780,5ptp4l401ktimersoftd/321:31:233
106891730,10ptp4l401ktimersoftd/301:33:523
106891690,1ptp4l401ktimersoftd/301:40:493
246472650,5sleep037099cyclictest02:50:380
166862640,2sleep30-21swapper/323:58:013
106891570,1ptp4l401ktimersoftd/302:04:513
283232560,3sleep3401ktimersoftd/323:36:133
106891560,1ptp4l401ktimersoftd/300:05:503
106891550,1ptp4l401ktimersoftd/301:55:523
106891540,1ptp4l401ktimersoftd/302:06:003
37499538,7cyclictest7402-21/usr/sbin/munin00:20:441
374994914,6cyclictest25-21ksoftirqd/102:51:251
325812494,34sleep10-21swapper/121:33:141
83222470,2sleep20-21swapper/223:50:132
374994617,8cyclictest25-21ksoftirqd/102:17:091
374994617,8cyclictest25-21ksoftirqd/102:17:091
106891460,1ptp4l401ktimersoftd/323:46:243
374994520,9cyclictest25-21ksoftirqd/100:39:251
374994517,9cyclictest25-21ksoftirqd/101:23:221
374994420,9cyclictest25-21ksoftirqd/102:31:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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