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2026-05-09 - 11:20
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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 rack5slot7.osadl.org (updated Sat May 09, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23921224302191,88sleep00-21swapper19:06:060
240089916416,23cyclictest27289-21irqstats21:47:480
240089916012,60cyclictest19939-21/usr/sbin/munin21:27:040
240089910218,63cyclictest23531-21munin-run23:11:360
240089910217,64cyclictest27509-21fw_conntrack23:22:390
240089910137,47cyclictest17419-21open_files22:53:100
240089910111,67cyclictest10093-21latency_hist00:06:410
240089910019,61cyclictest3715-21irqstats23:47:490
240089910018,45cyclictest5256-21df23:52:200
240089910017,62cyclictest18611-21fw_conntrack21:22:340
240089910016,47cyclictest18457-21ssh00:30:530
240089910016,24cyclictest29897-21ssh21:55:180
240089910015,45cyclictest6907-21df20:32:040
24008999918,44cyclictest15436-21fw_conntrack22:47:350
24008999916,61cyclictest15309-21apt-get00:21:530
24008999916,47cyclictest15143-21ssh21:12:350
24008999914,65cyclictest1634-21hostname23:42:060
24008999913,26cyclictest13020-21/usr/sbin/munin21:08:100
24008999818,43cyclictest8533-21df_inode22:27:330
24008999817,60cyclictest10434-21memory22:32:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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