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2025-11-13 - 13:56

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 Nov 13, 2025 00:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
471448991168,78cyclictest575673-40tracker-miner-f21:06:169
6093712910,0sleep90-21swapper/921:45:2019
46692727263,5sleep30-21swapper/319:05:0013
47082925946,8sleep60-21swapper/619:08:0416
46759125854,2sleep100-21swapper/1019:05:072
47096025347,3sleep160-21swapper/1619:09:348
47065625348,3sleep50-21swapper/519:06:0315
47065525246,3sleep40-21swapper/419:06:0214
47086225144,4sleep80-21swapper/819:08:2618
47078725147,2sleep130-21swapper/1319:07:315
47074725145,4sleep90-21swapper/919:07:0619
47078924840,5sleep150-21swapper/1519:07:347
47091424743,2sleep180-21swapper/1819:08:5610
47064624744,2sleep170-21swapper/1719:05:549
47063924743,2sleep110-21swapper/1119:05:483
47064324541,2sleep140-21swapper/1419:05:526
5523362420,0sleep110-21swapper/1120:40:163
47140799408,31cyclictest3885565-21CPU15
47139199407,27cyclictest0-21swapper/022:03:580
47094523933,4sleep20-21swapper/219:09:2012
47094423833,3sleep10-21swapper/119:09:191
47078623834,2sleep120-21swapper/1219:07:304
198398380,36rtkit-daemon0-21swapper/719:06:3417
471425993711,25cyclictest1121irq_work/1023:30:582
47064823733,2sleep190-21swapper/1919:05:5611
471448993633,2cyclictest3885569-21CPU9
471448993631,4cyclictest0-21swapper/1722:13:589
471448993630,6cyclictest0-21swapper/1719:33:599
471405993611,0cyclictest0-21swapper/419:36:4314
47139199369,26cyclictest261irq_work/023:47:580
47101123630,4sleep00-21swapper/019:09:580
47144899355,29cyclictest0-21swapper/1721:35:199
47143199359,25cyclictest0-21swapper/1223:50:584
47142199350,35cyclictest0-21swapper/921:51:5819
47140599350,34cyclictest727370-40tracker-miner-f00:03:5814
47139699359,25cyclictest401irq_work/220:40:0012
471448993433,1cyclictest0-21swapper/1700:33:599
47144599340,1cyclictest3885565-21CPU8
471421993434,0cyclictest0-21swapper/900:28:5819
471417993425,8cyclictest3885569-21CPU18
47140799346,27cyclictest0-21swapper/519:59:0015
47139699340,33cyclictest0-21swapper/219:31:1212
471455993333,0cyclictest0-21swapper/1922:38:5911
471455993333,0cyclictest0-21swapper/1922:38:5811
471452993333,0cyclictest0-21swapper/1820:01:5910
471448993330,3cyclictest0-21swapper/1719:28:009
471448993330,3cyclictest0-21swapper/1719:27:599
47144899332,30cyclictest0-21swapper/1700:36:589
471431993332,1cyclictest536792-40tracker-miner-f20:22:004
471431993331,1cyclictest205950irq/149-eno100:15:584
47142199330,33cyclictest0-21swapper/921:57:5819
471417993333,0cyclictest0-21swapper/823:53:1018
471407993331,0cyclictest0-21swapper/521:57:5815
47140599330,33cyclictest0-21swapper/423:31:5814
47139699330,32cyclictest748731-40tracker-miner-f00:26:4712
47139699330,32cyclictest0-21swapper/223:22:2812
47139699330,32cyclictest0-21swapper/223:15:4312
47139699330,32cyclictest0-21swapper/223:13:5112
47139699330,32cyclictest0-21swapper/222:47:4012
47139699330,32cyclictest0-21swapper/221:44:5712
471448993231,1cyclictest0-21swapper/1719:36:009
471448993231,0cyclictest0-21swapper/1721:53:599
471441993232,0cyclictest0-21swapper/1519:56:007
47143799325,26cyclictest4582821kworker/u80:3+i91519:36:436
471437993232,0cyclictest0-21swapper/1421:53:586
471435993226,6cyclictest0-21swapper/1323:48:585
471431993231,1cyclictest205950irq/149-eno123:57:234
471431993231,1cyclictest205950irq/149-eno121:53:134
471431993231,1cyclictest205950irq/149-eno120:48:084
471431993231,1cyclictest205950irq/149-eno120:32:284
471431993231,1cyclictest205950irq/149-eno119:28:044
471431993231,1cyclictest205950irq/149-eno119:28:034
471421993232,0cyclictest0-21swapper/922:07:5819
471415993232,0cyclictest0-21swapper/700:22:5917
471411993232,0cyclictest0-21swapper/600:22:5916
47139699320,32cyclictest0-21swapper/221:08:2112
47139699320,31cyclictest0-21swapper/222:20:3212
47139699320,31cyclictest0-21swapper/222:06:3012
47139699320,31cyclictest0-21swapper/221:23:3212
47139699320,1cyclictest584537-40tracker-miner-f21:18:1612
47139699320,0cyclictest0-21swapper/223:02:5812
47139699320,0cyclictest0-21swapper/222:38:5912
47139699320,0cyclictest0-21swapper/222:38:5912
47139699320,0cyclictest0-21swapper/222:03:2912
47139699320,0cyclictest0-21swapper/200:01:1312
471391993220,11cyclictest740046-40tracker-miner-f00:15:580
471455993131,0cyclictest0-21swapper/1923:06:5811
471448993130,1cyclictest0-21swapper/1722:42:589
471448993130,1cyclictest0-21swapper/1722:42:589
471448993130,1cyclictest0-21swapper/1700:28:589
47144899310,30cyclictest0-21swapper/1720:00:599
471445993131,0cyclictest0-21swapper/1621:49:588
471431993131,0cyclictest205950irq/149-eno122:20:054
471431993131,0cyclictest205950irq/149-eno120:51:534
471431993130,1cyclictest205950irq/149-eno123:47:244
471431993130,1cyclictest205950irq/149-eno123:16:324
471431993130,1cyclictest205950irq/149-eno121:27:054
471431993130,1cyclictest205950irq/149-eno120:59:294
471431993130,1cyclictest205950irq/149-eno120:43:514
471431993130,1cyclictest205950irq/149-eno120:16:334
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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