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2023-02-01 - 12:55

x86 Intel Atom E640 @1000 MHz, Linux 3.18.11-rt7 (Profile)

Latency plot of system in rack #9, 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
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 20 highest latencies:
System rack9slot4.osadl.org (updated Tue Jan 31, 2023 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26947113498sleep0-21swapper/111:44:271
26940111922sleep0-21swapper/011:44:200
27239991099cyclictest0-21swapper/013:06:000
27239999914cyclictest0-21swapper/015:06:150
2723999974cyclictest25959-21latency_hist15:25:450
2723999939cyclictest0-21swapper/014:35:490
2723999939cyclictest0-21swapper/013:13:250
2723999934cyclictest27727-21multi.sh12:24:220
2723999934cyclictest27727-21multi.sh12:24:220
27239999329cyclictest0-21swapper/014:30:430
2723999928cyclictest0-21swapper/011:55:050
2723999918cyclictest0-21swapper/015:16:350
2723999917cyclictest0-21swapper/011:48:170
2723999907cyclictest0-21swapper/011:59:140
27239998910cyclictest0-21swapper/016:55:530
2723999889cyclictest0-21swapper/016:36:130
2723999889cyclictest0-21swapper/016:15:020
2723999889cyclictest0-21swapper/015:40:510
2723999889cyclictest0-21swapper/014:16:170
2723999889cyclictest0-21swapper/013:16:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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