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2025-11-30 - 20:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rack9slot2.osadl.org (updated Sun Nov 30, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176032315276,26sleep10-21swapper/11
191862302265,25sleep30-21swapper/33
190772260203,44sleep00-21swapper/00
192282233195,25sleep20-21swapper/22
1952299214210,2cyclictest0-21swapper/33
1951599210205,3cyclictest0-21swapper/11
1951799188182,4cyclictest23223-21strings2
1951499142138,2cyclictest0-21swapper/00
2092921400,1sleep00-21swapper/00
279322300,7sleep327935-21pmu-power3
1952299297,20cyclictest0-21swapper/33
19515992720,4cyclictest5855-21idleruntime-cro1
11902270,4sleep0101rcuc/00
19522992518,4cyclictest505-21dbus-daemon3
19517992519,4cyclictest29374-21expr2
19517992513,10cyclictest10281-21cat2
19522992417,4cyclictest6617-21cat3
19522992417,3cyclictest23866-21tr3
19517992411,11cyclictest7509-21users2
1952299235,6cyclictest2082-21systemd-journal3
1952299233,19cyclictest0-21swapper/33
19522992315,5cyclictest505-21dbus-daemon3
1951799232,20cyclictest0-21swapper/22
19517992310,10cyclictest16774-21expr2
19515992312,6cyclictest8891-21apt-get1
19522992215,4cyclictest21792-21dpkg3
19522992210,7cyclictest665-21runrttasks3
1951799223,17cyclictest25620-21cat2
1951799223,17cyclictest25620-21cat2
19517992214,5cyclictest11941-21seq2
1951799221,3cyclictest26639-21munin-run2
1951799221,3cyclictest20132-21munin-run2
1951799221,18cyclictest27543-21munin-run2
1951799221,18cyclictest15530-21diskstats2
1951799220,4cyclictest21624-21cut2
19515992216,4cyclictest26658-21idleruntime-cro1
19515992215,4cyclictest8690-21seq1
19515992215,4cyclictest6209-21cat1
19515992215,4cyclictest1714-21proc_pri1
133842220,4sleep21951799cyclictest2
265882211,8sleep20-21swapper/22
1952299215,4cyclictest0-21swapper/33
1952299214,9cyclictest6113-21apt-get3
19522992112,5cyclictest12821-21sh3
1952299211,17cyclictest28248-21grep3
1951799219,3cyclictest21039-21expr2
1951799212,17cyclictest8832-21cat2
19517992116,3cyclictest6282-21aten2_r9power_c2
19517992116,3cyclictest312-21cpuspeed_turbos2
19517992116,3cyclictest28-21ksoftirqd/22
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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