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2025-12-12 - 19:27
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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 Fri Dec 12, 2025 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7865224870,14sleep07133-1kworker/u3:017:35:300
88919910413,69cyclictest26623-21/usr/sbin/munin22:45:550
88919910413,28cyclictest17792-21/usr/sbin/munin20:40:260
88919910319,25cyclictest32328-21df19:45:420
88919910228,39cyclictest21240-21sendmail18:49:580
88919910227,64cyclictest0-21swapper20:04:360
88919910226,65cyclictest0-21swapper23:07:590
88919910218,64cyclictest30425-21memory22:56:150
88919910217,23cyclictest13207-21fw_conntrack20:26:030
88919910129,62cyclictest0-21swapper22:44:340
88919910117,24cyclictest28052-21irqstats21:11:040
88919910117,22cyclictest22133-21irqstats22:31:100
88919910116,23cyclictest1564-21df19:50:430
88919910110,28cyclictest23054-21ssh20:55:530
88919910017,46cyclictest12221-21memory22:01:130
88919910017,23cyclictest31946-21munin-run19:44:590
88919910014,25cyclictest31072-21ssh21:20:340
88919910013,72cyclictest0-21swapper22:24:180
88919910012,46cyclictest10841-21switchtime21:56:360
8891999926,62cyclictest0-21swapper21:29:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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