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2024-11-23 - 16:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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 rack0slot6s.osadl.org (updated Sat Nov 23, 2024 01:21:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23592452314307,5sleep60-21swapper/619:10:0016
23589942303296,4sleep170-21swapper/1719:06:309
23589932303296,5sleep160-21swapper/1619:06:298
23592192301294,5sleep70-21swapper/719:09:4117
23591992301294,5sleep130-21swapper/1319:09:285
23590702300294,4sleep20-21swapper/219:07:3512
23590412299291,5sleep190-21swapper/1919:07:1211
23590102299292,5sleep100-21swapper/1019:06:442
23590772298290,5sleep80-21swapper/819:07:4218
23591492297290,5sleep110-21swapper/1119:08:463
23589182297290,5sleep120-21swapper/1219:05:264
23590252296290,4sleep30-21swapper/319:06:5613
23589772296289,5sleep50-21swapper/519:06:1915
23592372294286,5sleep00-21swapper/019:09:550
23591102294286,5sleep180-21swapper/1819:08:1210
23589602294286,5sleep90-21swapper/919:06:0319
23590692290283,5sleep10-21swapper/119:07:351
23589892289282,5sleep140-21swapper/1419:06:286
23560252287280,5sleep150-21swapper/1519:05:087
23590472284277,5sleep40-21swapper/419:07:1814
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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