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2024-04-23 - 09:39

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Phytec
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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.osadl.org (updated Tue Apr 23, 2024 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
404656995347,4cyclictest491028-21kworker/u8:2+events_unbound23:28:162
404656995347,4cyclictest491028-21kworker/u8:2+events_unbound23:28:162
404663995142,6cyclictest487365-21grep23:05:303
404654995042,4cyclictest477111-21cat22:40:011
404654995022,25cyclictest429110-21sendmail20:20:011
404656994935,10cyclictest311ktimers/221:55:132
404654994925,19cyclictest0-21swapper/120:05:261
404654994841,4cyclictest509764-21unixbench_singl00:10:281
404653994838,6cyclictest500985-21grep23:45:290
404654994736,7cyclictest442553-21grep20:55:291
404654994736,7cyclictest442553-21grep20:55:291
404663994635,7cyclictest464748-21grep22:00:283
404663994635,7cyclictest464748-21grep22:00:283
404656994639,4cyclictest407094-21kworker/u8:3+events_unbound19:30:012
404663994533,8cyclictest469847-21grep22:15:273
404654994537,5cyclictest475406-21munin-plugin-st22:35:001
40465499442,8cyclictest512102-21cat00:20:021
40465499441,10cyclictest422836-21/usr/sbin/munin20:00:181
404653994435,5cyclictest473708-21seq22:30:000
404656994336,5cyclictest384048-21kworker/u8:0+events_unbound19:22:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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