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2025-07-09 - 08:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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 rack0slot1s.osadl.org (updated Wed Jul 09, 2025 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2103099136135,1cyclictest0-21swapper/623:37:236
2103099131128,2cyclictest0-21swapper/621:57:316
2101399131129,1cyclictest37-21ksoftirqd/320:24:363
2099099131129,1cyclictest3-21ksoftirqd/022:20:210
2103899130129,1cyclictest0-21swapper/723:31:117
21038991300,129cyclictest0-21swapper/721:05:297
21030991300,129cyclictest5265-21chk_conn_tcp22:31:146
21026991300,129cyclictest0-21swapper/520:48:555
2099799130128,1cyclictest21-21ksoftirqd/123:07:101
21038991290,128cyclictest0-21swapper/720:59:327
2101399129127,1cyclictest37-21ksoftirqd/322:27:523
2100599129127,1cyclictest29-21ksoftirqd/223:10:352
2100599129127,1cyclictest29-21ksoftirqd/221:59:532
2099799129126,3cyclictest21-21ksoftirqd/121:25:301
2099099129127,1cyclictest3-21ksoftirqd/021:07:430
21038991280,127cyclictest0-21swapper/700:13:537
2103099128126,1cyclictest0-21swapper/621:07:316
21030991270,2cyclictest0-21swapper/620:02:196
2101999127124,2cyclictest0-21swapper/421:16:214
2099099127127,0cyclictest3-21ksoftirqd/019:55:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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