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2025-12-11 - 08:30
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Thu Dec 11, 2025 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4804224010,12sleep03599-1kworker/u3:117:38:120
50369910718,23cyclictest18859-21apt-get22:30:230
50369910319,64cyclictest16020-21memory22:21:220
50369910314,25cyclictest7918-21df20:20:510
50369910312,28cyclictest16438-21ssh20:46:100
50369910232,53cyclictest0-21swapper21:48:480
50369910216,65cyclictest12530-21munin-run20:35:020
50369910216,64cyclictest29343-21ssh21:25:060
50369910135,50cyclictest0-21swapper20:19:260
50369910126,64cyclictest0-21swapper20:58:020
50369910119,45cyclictest12588-21irqstats22:11:110
50369910118,47cyclictest32271-21ssh21:33:000
50369910117,24cyclictest14848-21ssh22:17:160
50369910115,65cyclictest3184-21/usr/sbin/munin20:06:340
50369910112,25cyclictest13257-21ntpq20:36:290
50369910035,32cyclictest0-21swapper21:43:350
50369910017,44cyclictest23105-21fw_conntrack21:06:040
50369910016,64cyclictest22634-21irqstats22:41:100
50369910016,60cyclictest24416-21ssh21:10:110
50369910016,25cyclictest4752-21memory20:11:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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