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2026-03-12 - 17:38
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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 Thu Mar 12, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2656721750,3sleep341-21ksoftirqd/311:53:373
508621610,5sleep21763299cyclictest11:30:322
2553621460,4sleep31764199cyclictest12:58:493
1877721410,5sleep21763299cyclictest11:45:132
1068911210,7ptp4l26343-21kworker/3:107:55:063
170312933,72sleep017158-21/usr/sbin/munin07:55:210
16032810,3sleep21763299cyclictest13:06:432
305952690,2sleep20-21swapper/209:30:112
119012610,2sleep30-21swapper/311:38:483
17641995812,33cyclictest10513-21unixbench_singl10:30:223
106891580,1ptp4l401ktimersoftd/308:56:223
282162550,1sleep00-21swapper/012:28:030
152092530,2sleep20-21swapper/211:41:032
282372500,2sleep20-21swapper/212:28:052
228682490,2sleep00-21swapper/010:10:160
142442490,2sleep00-21swapper/013:20:140
106891420,1ptp4l401ktimersoftd/313:25:103
106891410,1ptp4l401ktimersoftd/310:10:043
106891400,1ptp4l401ktimersoftd/312:09:003
17641993913,22cyclictest10683-21expr08:50:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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