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2023-05-31 - 03:15

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 Wed May 31, 2023 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2832391994838,6cyclictest2881930-21grep21:30:363
2832391994736,7cyclictest2910952-21grep22:55:383
2832378994736,7cyclictest2852062-21fschecks_count20:05:200
2832387994134,4cyclictest2901133-21idleruntime-cro22:30:012
2832378994134,4cyclictest2868758-21munin-plugin-st20:55:000
2832378994129,7cyclictest2939912-21unixbench_multi00:20:330
2832391994031,4cyclictest0-21swapper/321:06:423
2832391994028,8cyclictest2859770-21grep20:25:363
2832382994032,4cyclictest2924990-21latency_hist23:40:011
2832382994031,5cyclictest2904531-21cron22:40:011
2832391993930,6cyclictest53-21kcompactd022:10:003
2832387993930,5cyclictest2859765-21grep20:25:362
2832378993929,6cyclictest2847832-21unixbench_multi19:50:350
2832391993830,5cyclictest2938654-21auditctl00:20:013
2832391993826,8cyclictest2843132-21apt-get19:40:013
2832378993829,4cyclictest0-21swapper/020:45:010
2832378993828,6cyclictest0-21swapper/021:50:310
2832391993726,9cyclictest435-21cron20:15:003
2832387993730,5cyclictest2885731-21kworker/u8:2+events_unbound22:36:582
2832382993725,8cyclictest2896006-21sh22:15:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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