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2026-06-26 - 16:10
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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 Fri Jun 26, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2744821740,5sleep22102499cyclictest14:28:352
1476221740,2sleep32103399cyclictest13:42:073
1068911180,8ptp4l18424-21kworker/3:108:57:353
84182820,1sleep00-21swapper/013:34:410
106891720,1ptp4l401ktimersoftd/312:05:423
206522680,2sleep30-21swapper/313:14:013
206052664,10sleep00-21swapper/008:54:290
5562640,3sleep09-21ksoftirqd/010:28:410
158402630,2sleep00-21swapper/011:32:160
21013996216,10cyclictest2225-21apt-get11:18:420
106891620,1ptp4l401ktimersoftd/310:48:593
255302610,4sleep233-21ksoftirqd/213:53:342
21013996115,12cyclictest23458-21basename14:23:520
21013996112,16cyclictest30365-21/usr/sbin/munin12:18:510
165672610,2sleep00-21swapper/014:16:490
324642600,5sleep332468-21needreboot12:53:533
21013995913,11cyclictest25220-21ssh11:08:450
21013995812,11cyclictest20891-21runrttasks13:14:060
21013995712,15cyclictest20154-21ssh12:41:550
21013995712,14cyclictest12801-21ssh12:01:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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