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2023-01-31 - 05:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Phytec

ARM Freescale i.MX8M Plus @1600 MHz, Linux 5.17.0-rt15 (Profile)

Latency plot of shadow in rack #b, slot #5
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot5s (updated Tue Jan 31, 2023 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3600539996533,8cyclictest3611398-21munin-plugin-st19:40:010
3600539996047,7cyclictest3652526-21idleruntime-cro21:40:000
3600539996047,7cyclictest3652526-21idleruntime-cro21:40:000
3600549995526,25cyclictest0-21swapper/200:00:362
3600553995429,21cyclictest3701794-21grep00:00:363
3600549995345,5cyclictest3661134-21munin-plugin-st22:05:002
3600553995130,17cyclictest0-21swapper/322:35:003
3600553995039,7cyclictest3616062-21grep19:50:303
3600545995041,5cyclictest3618245-21dpkg20:00:001
3600553994925,20cyclictest0-21swapper/322:50:313
3600539994938,6cyclictest3604568-21sendmail19:20:010
3600553994825,18cyclictest0-21swapper/319:15:303
3600549994822,21cyclictest0-21swapper/219:30:312
3600549994638,4cyclictest3602433-21latency_hist19:15:012
3600549994621,21cyclictest3676627-21latency_hist22:50:012
3600539994636,7cyclictest121ktimers/000:05:170
3600539994631,9cyclictest0-21swapper/021:25:000
3600549994527,14cyclictest0-21swapper/223:00:002
3600539994534,7cyclictest3645675-21sendmail21:20:010
3600553994435,6cyclictest3652078-21grep21:35:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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