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2025-04-02 - 05:34

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 Wed Apr 02, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3942397995120,27cyclictest0-21swapper/122:50:211
3942397995042,5cyclictest3946326-21sh19:20:011
3942393994941,4cyclictest3949723-21idleruntime-cro19:30:010
3942393994938,7cyclictest4030356-21grep23:50:200
3942393994934,12cyclictest121ktimers/000:00:130
3942402994737,6cyclictest4041818-21grep00:30:262
394239799441,12cyclictest4024604-21grep23:30:201
3942393994337,4cyclictest3982408-21diskmemload21:10:000
3942402994235,4cyclictest4001714-21munin-plugin-st22:15:012
3942402994229,8cyclictest3947634-21grep19:20:272
3942397994220,18cyclictest0-21swapper/120:15:271
3942393994236,4cyclictest4009357-21sendmail22:40:000
3942402994128,8cyclictest440-21cron00:40:002
3942397994111,3cyclictest0-21swapper/123:05:011
3942406994026,11cyclictest391ktimers/321:40:133
3942397993914,3cyclictest0-21swapper/119:45:011
3942397993912,3cyclictest3951791-21fschecks_count19:35:171
3942393993928,7cyclictest3999177-21awk22:05:000
3942402993829,5cyclictest3979009-21idleruntime-cro21:00:002
394239799389,6cyclictest3950175-21cut19:30:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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