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2025-05-03 - 02:00
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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 rack7slot8.osadl.org (updated Fri May 02, 2025 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3205212250,10sleep03201-21ntpq19:05:290
402999135110,15cyclictest0-21swapper/019:10:040
40299911842,38cyclictest22351-21sshd00:32:250
40299911641,34cyclictest17785-21apt-get00:17:070
40299911436,59cyclictest13712-21/usr/sbin/munin19:45:460
40299911242,32cyclictest26577-21irqstats22:45:330
40299911239,21cyclictest19406-21apt-get00:27:150
40299911228,35cyclictest7845-21df21:30:210
40299911171,31cyclictest19454-21runrttasks20:08:140
40299911161,40cyclictest8206-21apt-config23:40:160
40299911073,28cyclictest15498-21ntpq22:00:410
40299911063,37cyclictest28784-21cut22:55:140
40299911046,22cyclictest14972-21munin-run22:00:030
40299910980,20cyclictest11265-21runrttasks21:45:010
40299910945,50cyclictest10250irq/56-4a10000021:45:170
40299910942,36cyclictest10828-21/usr/sbin/munin23:51:040
40299910937,34cyclictest19151-21chrt22:15:340
40299910937,34cyclictest15974-21sshd19:55:330
40299910934,36cyclictest23926-21ntp_states20:25:450
40299910877,21cyclictest21797-21runrttasks20:17:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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