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2024-04-20 - 03:32

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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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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.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot5s.osadl.org (updated Sat Apr 20, 2024 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24667312424418,4sleep30-21swapper/319:05:589
24668472414408,4sleep120-21swapper/1219:07:424
24669742412406,4sleep150-21swapper/1519:09:377
24667772405399,4sleep130-21swapper/1319:06:395
24668792404398,4sleep80-21swapper/819:08:1014
24668222401394,4sleep40-21swapper/419:07:1910
24667512401395,4sleep60-21swapper/619:06:1712
24667542399393,4sleep90-21swapper/919:06:1915
24668852396390,4sleep140-21swapper/1419:08:166
24667522396390,4sleep70-21swapper/719:06:1813
24667502396390,4sleep50-21swapper/519:06:1611
24669972395389,4sleep10-21swapper/119:09:561
24668452395389,4sleep100-21swapper/1019:07:412
24668372395388,4sleep20-21swapper/219:07:338
24669962394388,4sleep00-21swapper/019:09:550
24667752391385,4sleep110-21swapper/1119:06:373
246731199300,30cyclictest0-21swapper/400:30:1110
246731199290,28cyclictest0-21swapper/423:24:4510
2467344992826,1cyclictest1005269-21snmpd00:09:597
246734499280,27cyclictest0-21swapper/1521:35:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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