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2025-04-02 - 05:10

OSADL QA Farm on Real-time of Mainline Linux

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

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.

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 r0s0s.osadl.org (updated Wed Apr 02, 2025 00:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2757752300291,6sleep60-21swapper/619:07:226
2757542294255,13sleep50-21swapper/519:07:055
2759572290270,13sleep10-21swapper/119:09:581
2759482290269,13sleep20-21swapper/219:09:512
2757312290256,26sleep00-21swapper/019:06:430
2759442287266,13sleep70-21swapper/719:09:477
2757072285265,13sleep30-21swapper/319:06:233
2758852280261,12sleep40-21swapper/419:08:564
276438993636,0cyclictest0-21swapper/721:04:227
276437993634,1cyclictest277565-21kworker/u16:2+events_unbound19:20:016
276437993330,3cyclictest833-21snmpd20:00:006
276437993330,3cyclictest833-21snmpd19:59:596
276437993330,2cyclictest833-21snmpd23:30:076
276437993330,2cyclictest833-21snmpd22:44:306
276437993329,3cyclictest833-21snmpd23:04:486
276436993330,2cyclictest833-21snmpd22:28:235
276436993330,2cyclictest833-21snmpd20:09:395
276436993323,10cyclictest0-21swapper/523:00:275
27643599330,1cyclictest0-21swapper/420:42:074
276434993330,2cyclictest833-21snmpd23:27:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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