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2025-12-09 - 14:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot6s.osadl.org (updated Tue Dec 09, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181212997265,3cyclictest0-21swapper/021:05:120
181212996714,8cyclictest190753-21apt-get20:05:020
181212996714,8cyclictest190753-21apt-get20:05:020
181212996448,9cyclictest212306-21unixbench_multi22:05:290
18121299616,26cyclictest0-21swapper/019:25:020
181215995822,29cyclictest228314-21ptp4l23:40:272
181212995650,3cyclictest0-21swapper/019:30:290
181212995546,5cyclictest21050irq/252-8000000.ethernet20:30:010
181213995448,4cyclictest22-21rcuc/120:25:021
18121299543,5cyclictest205374-21wc21:25:270
181212995346,2cyclictest0-21swapper/022:30:170
181212995325,21cyclictest0-21swapper/021:20:010
181215995135,10cyclictest0-21swapper/219:40:012
181215995135,10cyclictest0-21swapper/219:40:012
181213995138,8cyclictest0-21swapper/122:10:301
181213995138,8cyclictest0-21swapper/122:10:291
18121299512,9cyclictest0-21swapper/020:00:010
181215995031,14cyclictest311ktimers/223:05:162
181212995042,4cyclictest21050irq/252-8000000.ethernet19:10:320
181215994936,8cyclictest0-21swapper/223:00:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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