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2024-11-23 - 17:37

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 Nov 23, 2024 00:46:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12022902356350,4sleep140-21swapper/1419:07:096
12022192349310,32sleep130-21swapper/1319:06:035
12022292345325,13sleep60-21swapper/619:06:1212
12022632344324,13sleep40-21swapper/419:06:4210
12024632343321,15sleep80-21swapper/819:09:4514
12024622343322,14sleep70-21swapper/719:09:4413
12022162342302,15sleep100-21swapper/1019:06:012
12024582341322,12sleep30-21swapper/319:09:389
12024512339319,13sleep150-21swapper/1519:09:357
12023682338319,12sleep50-21swapper/519:08:2011
12022322337318,12sleep90-21swapper/919:06:1515
12023052336317,13sleep120-21swapper/1219:07:234
12023652335314,14sleep20-21swapper/219:08:188
12022172335314,14sleep110-21swapper/1119:06:013
12022062335328,5sleep10-21swapper/119:05:521
12022052333314,12sleep00-21swapper/019:05:510
120280599446,25cyclictest0-21swapper/1221:37:374
120280599446,25cyclictest0-21swapper/1221:26:384
120280599446,25cyclictest0-21swapper/1219:58:464
120280599446,25cyclictest0-21swapper/1219:36:484
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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