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2025-06-28 - 22:54
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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 rackeslot4.osadl.org (updated Sat Jun 28, 2025 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221048099272,22cyclictest2287336-21apt-get08:25:152
221048099262,22cyclictest2328819-21apt-get09:05:152
221048099262,21cyclictest2422728-21apt-get10:20:142
221048099261,23cyclictest2254038-21sort07:50:242
221048099261,21cyclictest0-21swapper/207:45:162
221048099261,19cyclictest191rcu_preempt08:35:002
221048099252,2cyclictest2429077-21apt-get10:25:172
221048099251,3cyclictest2557732-21apt-get12:05:172
221048099251,3cyclictest2333659-21diskmemload09:47:312
221048099251,2cyclictest2333659-21diskmemload12:16:092
221048099251,22cyclictest2593395-21ntpq12:30:232
221048099251,22cyclictest2537923-21apt-get11:50:182
221048099251,22cyclictest2372118-21apt-get09:40:162
221048099251,21cyclictest2583059-21apt-get12:25:172
221048099250,23cyclictest2524482-21apt-get11:40:002
221048099250,23cyclictest2391993-21irqstats09:55:182
2210478992523,1cyclictest0-21swapper/107:35:201
221047899251,2cyclictest2251803-21apt-get07:50:191
221047899251,21cyclictest2397426-21apt-get10:00:181
221047899251,20cyclictest2403740-21apt-get10:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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