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2026-05-31 - 06:08

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 May 31, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33067042284277,4sleep80-21swapper/819:08:5318
33067272264256,5sleep90-21swapper/919:09:1419
33034972246239,4sleep20-21swapper/219:05:0612
33067192245237,5sleep10-21swapper/119:09:061
33067232244236,5sleep50-21swapper/519:09:0915
33064542239219,12sleep70-21swapper/719:05:5117
33065392237219,11sleep30-21swapper/319:06:4713
33056202236216,12sleep180-21swapper/1819:05:2210
33067922233214,12sleep120-21swapper/1219:09:574
33067682232214,11sleep170-21swapper/1719:09:429
33064532231211,12sleep60-21swapper/619:05:4916
33066292230214,9sleep100-21swapper/1019:07:552
33066112230211,12sleep190-21swapper/1919:07:4411
33066012230211,12sleep110-21swapper/1119:07:363
33065672226207,12sleep40-21swapper/419:07:0814
33064652226207,12sleep130-21swapper/1319:05:575
33065022225205,13sleep150-21swapper/1519:06:187
33067102224205,12sleep140-21swapper/1419:08:586
33065312223204,12sleep160-21swapper/1619:06:408
33065102217198,12sleep00-21swapper/019:06:240
330721299340,33cyclictest0-21swapper/1819:55:5810
330721299340,33cyclictest0-21swapper/1800:34:5810
330720099340,33cyclictest3576565-21updatedb00:35:096
3307180993434,0cyclictest0-21swapper/922:43:5919
3307180993433,1cyclictest0-21swapper/919:57:5819
330716399340,33cyclictest0-21swapper/321:25:5913
330716399340,33cyclictest0-21swapper/321:25:5913
330716099340,33cyclictest0-21swapper/219:21:5912
3307212993332,1cyclictest0-21swapper/1819:20:5810
3307210993333,0cyclictest0-21swapper/1722:42:599
330720599330,0cyclictest0-21swapper/1620:08:598
330720499330,33cyclictest0-21swapper/1520:06:597
330720499330,33cyclictest0-21swapper/1520:00:587
330720099330,33cyclictest0-21swapper/1419:27:596
3307175993333,0cyclictest0-21swapper/722:37:5917
330717599330,33cyclictest0-21swapper/722:17:5917
330717399330,33cyclictest0-21swapper/619:33:5916
330716099330,33cyclictest0-21swapper/220:57:5912
330716099330,33cyclictest0-21swapper/219:54:5812
3307212993232,0cyclictest0-21swapper/1820:44:5910
3307210993232,0cyclictest0-21swapper/1722:24:589
3307210993232,0cyclictest0-21swapper/1722:14:599
3307205993232,0cyclictest0-21swapper/1620:04:598
3307204993232,0cyclictest0-21swapper/1520:33:597
3307204993232,0cyclictest0-21swapper/1519:41:587
3307204993232,0cyclictest0-21swapper/1519:27:597
3307196993232,0cyclictest0-21swapper/1321:27:595
3307196993232,0cyclictest0-21swapper/1321:27:595
3307196993232,0cyclictest0-21swapper/1320:59:585
3307196993232,0cyclictest0-21swapper/1320:31:595
3307196993232,0cyclictest0-21swapper/1319:38:595
330719699320,32cyclictest0-21swapper/1321:11:585
330719699320,32cyclictest0-21swapper/1319:55:595
3307194993232,0cyclictest0-21swapper/1221:28:594
3307194993232,0cyclictest0-21swapper/1221:28:594
3307180993232,0cyclictest0-21swapper/921:24:5919
3307175993232,0cyclictest0-21swapper/720:09:5917
3307173993232,0cyclictest0-21swapper/623:05:5816
3307173993232,0cyclictest0-21swapper/600:34:5916
330717399320,0cyclictest0-21swapper/619:35:5916
3307169993232,0cyclictest0-21swapper/519:28:5915
330716999320,0cyclictest0-21swapper/520:25:5915
3307167993232,0cyclictest0-21swapper/420:14:5914
3307160993232,0cyclictest0-21swapper/221:18:5812
3307160993232,0cyclictest0-21swapper/220:01:5912
330716099320,32cyclictest0-21swapper/222:45:5912
330716099320,0cyclictest0-21swapper/220:06:5912
3307157993231,0cyclictest0-21swapper/119:32:591
3307215993131,0cyclictest0-21swapper/1921:28:5911
3307215993131,0cyclictest0-21swapper/1921:28:5811
3307212993131,0cyclictest0-21swapper/1821:56:5810
3307212993131,0cyclictest0-21swapper/1820:45:5810
3307212993131,0cyclictest0-21swapper/1820:10:5810
3307212993130,0cyclictest0-21swapper/1821:36:5910
3307212993130,0cyclictest0-21swapper/1821:36:5810
3307210993131,0cyclictest0-21swapper/1721:22:599
3307210993131,0cyclictest0-21swapper/1721:04:599
3307204993131,0cyclictest0-21swapper/1520:20:597
3307178993131,0cyclictest0-21swapper/820:58:5918
3307178993131,0cyclictest0-21swapper/819:22:5918
3307173993131,0cyclictest0-21swapper/620:44:5916
3307173993131,0cyclictest0-21swapper/619:20:5916
3307167993131,0cyclictest0-21swapper/421:26:5914
3307167993131,0cyclictest0-21swapper/421:26:5914
3307167993131,0cyclictest0-21swapper/421:19:5914
3307163993131,0cyclictest0-21swapper/319:46:5913
3307160993131,0cyclictest0-21swapper/223:15:5812
3307160993131,0cyclictest0-21swapper/221:08:5912
330715799310,0cyclictest0-21swapper/119:47:591
3307154993131,0cyclictest0-21swapper/019:39:580
3307210993030,0cyclictest0-21swapper/1722:29:599
3307205993030,0cyclictest0-21swapper/1619:36:588
3307205993030,0cyclictest0-21swapper/1619:17:598
3307196993030,0cyclictest0-21swapper/1321:06:585
3307196993030,0cyclictest0-21swapper/1319:51:585
3307196993030,0cyclictest0-21swapper/1319:47:585
3307175993030,0cyclictest0-21swapper/722:43:5917
3307175993030,0cyclictest0-21swapper/721:24:5917
3307175993030,0cyclictest0-21swapper/719:57:5817
3307173993030,0cyclictest0-21swapper/620:45:5916
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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