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2026-01-01 - 14:55

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 Thu Jan 01, 2026 00:46:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8804322277270,4sleep190-21swapper/1919:08:4311
8804222252244,5sleep120-21swapper/1219:08:364
8804432239231,5sleep70-21swapper/719:08:5017
8804862237216,13sleep150-21swapper/1519:09:187
8803362236215,13sleep110-21swapper/1119:07:353
8803352235201,26sleep100-21swapper/1019:07:342
8805372233214,12sleep30-21swapper/319:09:4713
8803082233215,11sleep10-21swapper/119:07:241
8801842232215,9sleep160-21swapper/1619:05:588
8804762231212,12sleep50-21swapper/519:09:0815
8803952228207,13sleep180-21swapper/1819:08:2110
8805362226205,13sleep20-21swapper/219:09:4612
8801852226207,12sleep170-21swapper/1719:05:599
8804802225217,5sleep90-21swapper/919:09:1219
8802862225208,10sleep80-21swapper/819:07:1118
8801972221200,13sleep40-21swapper/419:06:0614
8803982219199,13sleep00-21swapper/019:08:230
8803902219175,13sleep130-21swapper/1319:08:165
8802572217197,12sleep60-21swapper/619:06:4916
8803422215194,13sleep140-21swapper/1419:07:376
88097199858,33cyclictest0-21swapper/719:37:3917
880966994416,27cyclictest0-21swapper/619:31:0016
880966994213,28cyclictest0-21swapper/620:28:5816
880966993911,27cyclictest0-21swapper/621:36:5816
88100499388,29cyclictest1861irq_work/1819:24:0010
880973993810,27cyclictest941irq_work/822:40:5818
88098299373,24cyclictest0-21swapper/1119:56:593
88098299373,24cyclictest0-21swapper/1119:56:583
88097699370,36cyclictest1808385-21Isolated10:52:2019
88099299360,27cyclictest1808196-21firefox19:47:256
880988993630,6cyclictest0-21swapper/1321:32:305
880988993610,26cyclictest1411irq_work/1319:50:585
88097699360,35cyclictest1808385-21Isolated10:52:2019
88097699360,35cyclictest0-21swapper/920:52:2919
88097699360,35cyclictest0-21swapper/919:24:0319
88097399360,35cyclictest1808491-21StyleThread#522:29:0618
88100499350,34cyclictest3558-21Xorg19:49:0210
88097699350,35cyclictest0-21swapper/922:52:3419
88097699350,35cyclictest0-21swapper/920:17:2719
88097699350,35cyclictest0-21swapper/919:14:0419
88097199350,34cyclictest1808489-21StyleThread#322:04:0717
880966993534,1cyclictest1808477-21Isolated10:52:2016
88100499340,33cyclictest0-21swapper/1821:52:3210
88100499340,33cyclictest0-21swapper/1819:14:0310
88099299340,33cyclictest1808385-21Isolated10:52:206
880976993434,0cyclictest0-21swapper/920:42:2719
880976993434,0cyclictest0-21swapper/920:09:0419
880976993434,0cyclictest0-21swapper/920:09:0319
88097699340,33cyclictest1808385-21Isolated10:52:2019
88097699340,33cyclictest1808385-21Isolated10:52:2019
88097699340,1cyclictest0-21swapper/922:09:0619
88096399347,26cyclictest671irq_work/522:21:5815
88096399340,34cyclictest1808491-21StyleThread#520:39:0415
88100499337,0cyclictest0-21swapper/1819:36:5910
88100299330,0cyclictest0-21swapper/1719:14:039
88099799333,30cyclictest0-21swapper/1619:31:008
88099799330,33cyclictest2004-21nessusd21:04:058
88099799330,33cyclictest1808497-21WebExtensions22:44:078
880992993332,1cyclictest1808477-21Isolated10:52:206
88099299330,0cyclictest0-21swapper/1420:47:286
880976993333,0cyclictest0-21swapper/923:08:5819
880976993333,0cyclictest0-21swapper/919:34:0319
880976993333,0cyclictest0-21swapper/900:35:2619
880976993333,0cyclictest0-21swapper/900:25:2619
88097699330,33cyclictest0-21swapper/922:59:0719
88097699330,0cyclictest0-21swapper/922:02:3219
880971993329,2cyclictest0-21swapper/700:13:4717
880966993328,3cyclictest3925-21gnome-shell21:34:5816
88096199330,33cyclictest0-21swapper/400:15:2714
88095699336,27cyclictest491irq_work/323:19:5913
88095699336,27cyclictest491irq_work/323:19:5813
88095699330,0cyclictest0-21swapper/323:30:2413
88095399330,33cyclictest0-21swapper/219:47:2412
88095199337,25cyclictest311irq_work/100:35:261
88095199330,32cyclictest0-21swapper/119:12:001
88094699330,32cyclictest0-21swapper/000:05:250
881007993232,0cyclictest0-21swapper/1922:04:0611
881007993232,0cyclictest0-21swapper/1919:14:0411
881004993232,0cyclictest0-21swapper/1822:49:0810
881004993232,0cyclictest0-21swapper/1822:12:3210
881004993232,0cyclictest0-21swapper/1819:19:0210
881002993232,0cyclictest0-21swapper/1700:05:259
880994993232,0cyclictest0-21swapper/1521:47:317
880994993232,0cyclictest0-21swapper/1500:00:257
88099499320,32cyclictest0-21swapper/1522:12:117
88099499320,31cyclictest1808489-21StyleThread#319:49:037
88099499320,0cyclictest0-21swapper/1522:02:337
880988993232,0cyclictest0-21swapper/1323:45:255
880982993231,1cyclictest1808352-21WRScene~ilder#123:25:253
880982993231,1cyclictest1808352-21WRScene~ilder#123:25:243
880976993232,0cyclictest0-21swapper/923:25:2519
880976993232,0cyclictest0-21swapper/923:25:2419
880976993232,0cyclictest0-21swapper/922:37:3319
880976993232,0cyclictest0-21swapper/920:34:0319
880976993232,0cyclictest0-21swapper/920:12:2619
88097699320,1cyclictest0-21swapper/923:45:2419
880971993232,0cyclictest0-21swapper/723:40:2517
880971993225,7cyclictest0-21swapper/720:49:0417
88097199320,0cyclictest0-21swapper/700:25:2617
880966993232,0cyclictest80-21ksoftirqd/619:14:0316
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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