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2025-12-07 - 07:07
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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 Sun Dec 07, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3044721710,5sleep12952699cyclictest23:50:051
2462421680,5sleep12952699cyclictest21:20:501
1773911210,8ptp4l17597-21kworker/3:120:21:313
140692830,2sleep20-21swapper/201:21:112
61912610,3sleep30-21swapper/301:50:593
29543996150,5cyclictest41-21ksoftirqd/320:55:493
266142610,3sleep3401ktimersoftd/301:00:093
29543995848,5cyclictest41-21ksoftirqd/301:05:533
2952299585,17cyclictest1764-21/usr/sbin/munin23:15:560
177391580,1ptp4l401ktimersoftd/322:55:443
29543995727,10cyclictest41-21ksoftirqd/301:35:403
29543995726,5cyclictest41-21ksoftirqd/300:55:403
29543995722,8cyclictest41-21ksoftirqd/300:01:023
2952299576,13cyclictest24627-21rm00:56:090
2952299575,17cyclictest1250-21head22:36:050
292472574,41sleep00-21swapper/020:23:200
281312570,2sleep10-21swapper/101:00:591
177391570,1ptp4l401ktimersoftd/301:50:343
2952299567,15cyclictest28424-21phc2sys01:01:020
272552560,3sleep2321ktimersoftd/223:06:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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