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2023-10-05 - 04:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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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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 rack0slot1s.osadl.org (updated Thu Oct 05, 2023 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3050926242,17sleep70-21swapper/719:08:237
3050926242,17sleep70-21swapper/719:08:237
3047924634,8sleep60-21swapper/619:07:576
3047924634,8sleep60-21swapper/619:07:576
3038024433,8sleep40-21swapper/419:06:354
3038024433,8sleep40-21swapper/419:06:354
3038524115,23sleep00-21swapper/019:06:390
3038524115,23sleep00-21swapper/019:06:390
3055623929,7sleep50-21swapper/519:09:005
3055623929,7sleep50-21swapper/519:09:005
3037923615,18sleep30-21swapper/319:06:353
3037923615,18sleep30-21swapper/319:06:343
3035023615,18sleep10-21swapper/119:06:081
3035023615,18sleep10-21swapper/119:06:081
3050423515,17sleep20-21swapper/219:08:172
3050423515,17sleep20-21swapper/219:08:172
30869992216,3cyclictest0-21swapper/721:47:427
30869992015,4cyclictest0-21swapper/723:11:287
30869991915,3cyclictest0-21swapper/722:57:577
30869991712,4cyclictest0-21swapper/721:05:437
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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