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2026-04-25 - 12:02
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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 Sat Apr 25, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911210,9ptp4l27924-21kworker/3:120:20:103
106891700,1ptp4l401ktimersoftd/322:35:563
270382640,7sleep2321ktimersoftd/200:26:332
285242610,1sleep00-21swapper/000:29:000
8492600,2sleep2845-21ssh00:34:002
314522600,2sleep10-21swapper/100:30:501
106891590,1ptp4l401ktimersoftd/322:58:033
267992560,1sleep10-21swapper/101:34:011
106891560,1ptp4l401ktimersoftd/300:25:053
200202540,1sleep30-21swapper/300:19:193
242432530,2sleep10-21swapper/123:50:061
9545995213,4cyclictest41-21ksoftirqd/323:14:153
9528995243,5cyclictest25-21ksoftirqd/122:29:091
9528995243,5cyclictest25-21ksoftirqd/122:29:091
92942524,36sleep20-21swapper/220:22:272
108382510,5sleep341-21ksoftirqd/300:44:043
107792510,2sleep20-21swapper/200:09:272
64942500,2sleep30-21swapper/322:26:463
9545994933,3cyclictest41-21ksoftirqd/322:29:093
9545994933,3cyclictest41-21ksoftirqd/322:29:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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