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2025-07-17 - 21:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, 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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  Phytec
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 rackbslot5s.osadl.org (updated Thu Jul 17, 2025 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2032411995338,12cyclictest121ktimers/011:45:150
2032419995140,7cyclictest2146584-21sh12:40:002
2032414994940,5cyclictest2117149-21cron11:15:011
2032419994734,9cyclictest311ktimers/211:30:152
2032419994733,10cyclictest2077740-21idleruntime-cro09:20:002
2032419994534,7cyclictest2035048-21cut07:15:172
2032414994539,4cyclictest2116794-21kworker/u8:0+events_unbound11:31:081
2032411994438,4cyclictest2125771-21kworker/u8:3+events_unbound11:41:110
2032411994438,4cyclictest2125771-21kworker/u8:3+events_unbound11:41:110
2032414994232,6cyclictest2127202-21grep11:40:261
2032414994232,6cyclictest2127202-21grep11:40:261
2032411994232,6cyclictest2063647-21unixbench_singl08:35:260
2032411994232,5cyclictest0-21swapper/008:50:010
2032414994126,11cyclictest231ktimers/109:40:131
2032411994130,7cyclictest2079170-21unixbench_multi09:20:260
2032414994032,5cyclictest2051907-21sh08:05:001
2032411994031,5cyclictest2070885-21sendmail09:00:010
2032411994029,6cyclictest2089458-21grep09:50:270
2032419993929,5cyclictest2098399-21idleruntime-cro10:20:002
2032414993928,7cyclictest2132719-21cron12:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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