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2026-08-02 - 21:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack0slot6s.osadl.org (updated Sun Aug 02, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17143702269262,4sleep180-21swapper/1819:09:0110
17111982265258,4sleep70-21swapper/719:05:0917
17141042254247,4sleep40-21swapper/419:05:2614
17142402251212,11sleep110-21swapper/1119:07:143
17143742247240,4sleep10-21swapper/119:09:041
17120392241234,4sleep120-21swapper/1219:05:144
17142452240200,12sleep150-21swapper/1519:07:187
17111922240233,4sleep30-21swapper/319:05:0513
17143692238218,12sleep170-21swapper/1719:09:009
17142342238219,11sleep60-21swapper/619:07:0916
17126572237230,4sleep160-21swapper/1619:05:188
17143902234215,12sleep140-21swapper/1419:09:176
17141722234215,12sleep20-21swapper/219:06:2412
17143592233213,12sleep80-21swapper/819:08:5118
17142222233215,11sleep190-21swapper/1919:07:0311
17143982232212,12sleep00-21swapper/019:09:230
17141102232214,11sleep100-21swapper/1019:05:322
17144352231212,12sleep50-21swapper/519:09:4815
17141842229210,11sleep130-21swapper/1319:06:355
17144092224205,10sleep90-21swapper/919:09:3219
171483799615,27cyclictest0-21swapper/1122:48:303
171484499350,17cyclictest0-21swapper/1319:33:305
1714864993434,0cyclictest0-21swapper/1920:15:5911
1714864993434,0cyclictest0-21swapper/1919:18:5911
171486499340,33cyclictest0-21swapper/1921:46:0011
171482099340,33cyclictest0-21swapper/521:30:5915
1714864993332,1cyclictest0-21swapper/1919:25:5911
171486499330,33cyclictest0-21swapper/1921:57:5911
171486499330,33cyclictest0-21swapper/1920:34:5911
1714859993333,0cyclictest0-21swapper/1721:30:599
171485999330,33cyclictest0-21swapper/1720:36:599
1714857993331,1cyclictest0-21swapper/1619:43:598
171485799330,33cyclictest0-21swapper/1619:19:598
1714852993333,0cyclictest0-21swapper/1521:55:597
1714830993333,0cyclictest0-21swapper/820:29:5918
171482699330,33cyclictest0-21swapper/720:17:0017
1714824993333,0cyclictest0-21swapper/620:01:5916
1714824993333,0cyclictest0-21swapper/619:55:5916
171482499330,33cyclictest0-21swapper/621:40:5916
171482499330,33cyclictest0-21swapper/620:06:5916
171482499330,33cyclictest0-21swapper/620:06:5916
171482499330,0cyclictest0-21swapper/621:27:5916
1714820993331,1cyclictest0-21swapper/520:39:5915
171481899330,33cyclictest0-21swapper/419:19:5914
1714862993230,1cyclictest0-21swapper/1819:43:5910
1714859993232,0cyclictest0-21swapper/1721:25:599
1714849993232,0cyclictest0-21swapper/1419:47:596
1714830993232,0cyclictest0-21swapper/821:58:5918
1714826993232,0cyclictest0-21swapper/722:09:5917
1714826993232,0cyclictest0-21swapper/722:03:5917
1714824993232,0cyclictest0-21swapper/620:38:5916
1714824993232,0cyclictest0-21swapper/619:44:5916
1714824993232,0cyclictest0-21swapper/619:38:5916
171482499320,32cyclictest0-21swapper/620:16:5916
171480999320,32cyclictest0-21swapper/119:26:591
171480999320,31cyclictest0-21swapper/120:40:591
1714864993131,0cyclictest0-21swapper/1921:05:5911
1714862993131,0cyclictest0-21swapper/1819:19:5910
1714859993131,0cyclictest0-21swapper/1720:45:599
1714859993131,0cyclictest0-21swapper/1720:33:599
1714835993131,0cyclictest0-21swapper/1019:31:592
171483599310,0cyclictest0-21swapper/1019:44:002
1714832993131,0cyclictest0-21swapper/919:48:5919
1714826993131,0cyclictest0-21swapper/720:22:5917
1714824993131,0cyclictest0-21swapper/621:09:5916
1714818993131,0cyclictest0-21swapper/419:43:5914
1714809993131,0cyclictest0-21swapper/120:55:591
1714809993131,0cyclictest0-21swapper/120:30:591
171480999310,31cyclictest0-21swapper/121:10:591
1714805993131,0cyclictest0-21swapper/020:21:590
1714864993030,0cyclictest0-21swapper/1920:21:5911
1714864993030,0cyclictest0-21swapper/1920:08:5911
1714864993030,0cyclictest0-21swapper/1920:08:5911
1714864993030,0cyclictest0-21swapper/1919:52:5911
1714859993030,0cyclictest0-21swapper/1721:24:599
1714859993030,0cyclictest0-21swapper/1720:11:009
1714859993030,0cyclictest0-21swapper/1720:10:599
1714859993030,0cyclictest0-21swapper/1700:17:589
1714844993030,0cyclictest0-21swapper/1320:39:595
1714832993030,0cyclictest0-21swapper/920:10:0019
1714832993030,0cyclictest0-21swapper/920:09:5919
1714826993030,0cyclictest0-21swapper/720:12:0017
1714826993030,0cyclictest0-21swapper/720:11:5917
1714809993030,0cyclictest0-21swapper/119:46:001
1714859992929,0cyclictest0-21swapper/1721:00:599
1714859992929,0cyclictest0-21swapper/1720:58:599
1714859992929,0cyclictest0-21swapper/1720:43:599
1714859992929,0cyclictest0-21swapper/1720:19:599
1714859992929,0cyclictest0-21swapper/1719:35:599
1714859992929,0cyclictest0-21swapper/1719:16:599
1714839992915,4cyclictest1755707-21ldconfig19:55:184
1714837992929,0cyclictest0-21swapper/1119:43:593
1714832992929,0cyclictest0-21swapper/921:03:5919
1714826992929,0cyclictest0-21swapper/719:49:5917
1714826992929,0cyclictest0-21swapper/700:19:5917
1714824992929,0cyclictest0-21swapper/620:47:5916
1714814992928,0cyclictest0-21swapper/319:20:0013
1714809992929,0cyclictest0-21swapper/119:56:591
1714809992929,0cyclictest0-21swapper/119:41:591
1714864992828,0cyclictest0-21swapper/1919:23:5911
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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