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2025-08-28 - 22:31
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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 Thu Aug 28, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169582255182,26sleep10-21swapper/11
167372255184,24sleep00-21swapper/00
166372254183,26sleep30-21swapper/33
169292248184,51sleep20-21swapper/22
1710199212208,2cyclictest0-21swapper/11
1709899196191,3cyclictest19060-21munin-run0
1711499188184,2cyclictest0-21swapper/33
1710799147134,11cyclictest0-21swapper/22
1939321390,3sleep11710199cyclictest1
275762690,1sleep30-21swapper/33
317712440,1sleep10-21swapper/11
166782440,1sleep10-21swapper/11
238082300,3sleep30-21swapper/33
252212250,5sleep10-21swapper/11
17114992316,4cyclictest11059-21cron3
1710799234,17cyclictest19225-21cat2
17107992317,4cyclictest5404-21sh2
17101992315,5cyclictest2082-21systemd-journal1
1710199230,21cyclictest21500-21kworker/1:11
40082220,2sleep20-21swapper/22
229772220,2sleep10-21swapper/11
1710799223,17cyclictest7189-21cat2
1710799223,17cyclictest11536-21awk2
17107992216,3cyclictest16839-21processes2
1710799221,4cyclictest10333-21gdbus2
17107992210,9cyclictest31247-21fw_packets2
17107992210,9cyclictest31247-21fw_packets2
17101992215,4cyclictest14343-21sh1
97142210,1sleep30-21swapper/33
17114992113,4cyclictest0-21swapper/33
17107992116,3cyclictest24248-21kernelversion2
17107992116,3cyclictest18908-21cpuspeed2
17107992115,3cyclictest4122-21pmu-power2
1710799211,4cyclictest6274-21lockfile-remove2
17107992114,4cyclictest5663-21ntpq2
1710799211,3cyclictest27640-21munin-node2
1710799211,18cyclictest28885-21munin-run2
1710799211,17cyclictest9948-1kworker/2:2H2
1710799211,17cyclictest30518-21munin-run2
17101992115,4cyclictest14771-21seq1
17101992114,4cyclictest397-21cut1
17101992114,4cyclictest2838-21seq1
17101992114,4cyclictest20966-21seq1
17101992114,4cyclictest18768-21sh1
1710199211,17cyclictest961-21cat1
17098992117,2cyclictest1592-21/usr/sbin/munin0
17098992115,4cyclictest19091-21seq0
17098992114,4cyclictest25298-21seq0
17098992114,4cyclictest24921-21seq0
17098992114,4cyclictest11331-21apt-get0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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