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2022-05-27 - 18:25

x86 Intel Atom x6425RE @1900 MHz, Linux 5.17.0-rt15 (Profile)

Latency plot of system in rack #e, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rackeslot4.osadl.org (updated Fri May 27, 2022 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2919503993426,3cyclictest2956086-21kworker/u8:122:25:290
2919503992926,2cyclictest2962118-21kworker/u8:222:35:440
2919503992820,2cyclictest2967200-21kworker/u8:100:15:520
2919520992618,6cyclictest3008578-21idleruntime-cro00:00:003
291952099251,3cyclictest2957325-21apt-get22:25:273
2919503992522,2cyclictest2934936-21kworker/u8:121:15:160
2919520992418,4cyclictest2944453-21cron21:50:003
291952099241,4cyclictest2979058-21mandb23:10:003
291951199240,22cyclictest2968957-21sh22:55:001
291950399241,3cyclictest2941303-21cron21:25:000
2919520992318,3cyclictest2993211-21irqcore23:30:223
291952099231,2cyclictest3019663-21sh00:20:003
291952099230,21cyclictest2978367-21apt23:05:003
2919515992319,3cyclictest2924106-21kworker/u8:120:05:012
291951599231,2cyclictest2981728-21apt-get23:10:112
2919503992320,3cyclictest2941875-21kworker/u8:222:15:220
2919503992320,2cyclictest2969212-21apt-get22:55:130
2919503992319,3cyclictest2968964-21munin-run22:55:000
2919503992319,2cyclictest0-21swapper/023:09:560
291950399231,2cyclictest2928822-21munin-run20:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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