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2026-08-11 - 22:07

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #2

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 rack7slot2s.osadl.org (updated Tue Aug 11, 2026 12:48:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246327699262172,42cyclictest0-21swapper/010:41:590
246327699262172,42cyclictest0-21swapper/010:41:590
246327699260155,92cyclictest0-21swapper/008:10:570
246327699260155,92cyclictest0-21swapper/008:10:570
246327699259115,100cyclictest0-21swapper/012:20:520
246327699258107,103cyclictest0-21swapper/011:22:270
246327699250137,65cyclictest0-21swapper/012:02:090
246327699250137,65cyclictest0-21swapper/012:02:090
246327699249125,64cyclictest0-21swapper/009:50:510
246327699248105,97cyclictest0-21swapper/011:55:040
246327699248101,99cyclictest0-21swapper/010:15:000
246327699248101,99cyclictest0-21swapper/010:15:000
246327699246151,83cyclictest2463275-21cyclictest08:02:040
246327699246133,68cyclictest0-21swapper/010:32:000
246327699246133,68cyclictest0-21swapper/010:32:000
246327699244172,43cyclictest2497872-21ssh10:16:390
246327699244172,43cyclictest2497872-21ssh10:16:390
246327699244103,97cyclictest0-21swapper/012:28:440
246327699244103,97cyclictest0-21swapper/012:28:440
246327699243166,43cyclictest2451478-21kworker/u9:14+rpciod07:21:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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