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2025-12-04 - 14:06
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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 rack7slot3.osadl.org (updated Thu Dec 04, 2025 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285959927179cyclictest21721-21munin-run23:16:310
2859599271242cyclictest31323-21sh23:57:260
2859599261236cyclictest5762-21egrep22:06:300
2859599261234cyclictest27497-21/usr/sbin/munin23:41:350
2859599260234cyclictest28909-21grep21:27:150
2859599260234cyclictest2109-21sh00:12:000
2859599260233cyclictest24752-21ssh23:28:200
2859599258233cyclictest2872-21snmpd19:23:150
2859599257229cyclictest26201-21ssh23:35:210
2859599256224cyclictest24454-21munin-node0
285959925576cyclictest15501-21chrt22:48:100
285959925569cyclictest19679-21df_inode23:07:020
2859599255228cyclictest8976-21ssh22:20:290
2859599255228cyclictest14236-21sh22:42:490
2859599254224cyclictest30305-21ntp_states19:12:530
285959925270cyclictest350-21ntp_states00:03:470
2859599252227cyclictest17648-21irqstats22:57:450
2859599251220cyclictest32559-21perl21:42:300
2859599251219cyclictest1209-21irqstats00:07:390
285959925088cyclictest23820-21latency_hist21:06:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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