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2026-05-12 - 12:27

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 Tue May 12, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22446872263255,5sleep60-21swapper/619:08:4216
22447072259252,4sleep40-21swapper/419:09:0014
22446932252245,4sleep120-21swapper/1219:08:484
22447432237229,5sleep150-21swapper/1519:09:317
22444462236228,5sleep110-21swapper/1119:06:063
22447032233214,12sleep00-21swapper/019:08:550
22444992233213,12sleep180-21swapper/1819:06:3210
22447252229209,12sleep190-21swapper/1919:09:1411
22444952228209,12sleep160-21swapper/1619:06:318
22445762225217,5sleep70-21swapper/719:07:2217
22447742223204,12sleep90-21swapper/919:09:4419
22447292220201,12sleep10-21swapper/119:09:161
22444452219206,8sleep100-21swapper/1019:06:042
22447642218210,5sleep50-21swapper/519:09:4115
22445372216205,7sleep20-21swapper/219:06:5612
22414472215196,12sleep80-21swapper/819:05:0218
22447312212197,9sleep30-21swapper/319:09:1913
22446682211192,12sleep140-21swapper/1419:08:306
22447412209190,12sleep130-21swapper/1319:09:295
22446482208198,6sleep170-21swapper/1719:08:129
224521199450,45cyclictest0-21swapper/1521:41:597
224520199400,0cyclictest0-21swapper/1219:42:584
2245226993634,1cyclictest1700471-21CPU11
224516599361,1cyclictest1700472-21CPU12
2245198993531,2cyclictest0-21swapper/1119:42:593
2245187993534,0cyclictest0-21swapper/820:16:5918
2245209993432,1cyclictest1700471-21CPU6
2245209993432,1cyclictest0-21swapper/1419:18:586
224517799340,33cyclictest0-21swapper/622:52:5816
2245171993433,1cyclictest0-21swapper/421:52:5914
2245161993434,0cyclictest0-21swapper/121:41:591
224518799330,0cyclictest0-21swapper/800:34:5818
2245171993331,1cyclictest1700472-21CPU14
224517199330,33cyclictest0-21swapper/423:49:5814
224516599330,33cyclictest0-21swapper/222:48:5812
224521699320,32cyclictest0-21swapper/1619:57:598
224521699320,32cyclictest0-21swapper/1619:57:588
224521199320,30cyclictest0-21swapper/1519:10:167
2245209993232,0cyclictest0-21swapper/1420:40:586
2245209993231,0cyclictest0-21swapper/1422:22:596
2245206993229,3cyclictest0-21swapper/1320:10:585
2245187993232,0cyclictest0-21swapper/820:31:5818
2245182993232,0cyclictest0-21swapper/721:48:5917
2245182993230,1cyclictest1700472-21CPU17
224518299320,0cyclictest0-21swapper/720:41:5917
2245177993232,0cyclictest0-21swapper/619:27:5916
224517199320,0cyclictest0-21swapper/421:38:5814
224516599320,0cyclictest0-21swapper/219:57:5912
224516599320,0cyclictest0-21swapper/219:57:5812
2245187993131,0cyclictest0-21swapper/822:25:5818
2245187993131,0cyclictest0-21swapper/820:26:5818
2245187993131,0cyclictest0-21swapper/820:12:5918
2245177993130,1cyclictest0-21swapper/620:36:5816
2245171993131,0cyclictest0-21swapper/421:56:5914
2245226993030,0cyclictest0-21swapper/1923:42:5911
2245209993030,0cyclictest0-21swapper/1421:55:586
2245209993028,1cyclictest1700472-21CPU6
2245206993020,9cyclictest0-21swapper/1323:16:595
2245177993030,0cyclictest0-21swapper/619:34:5916
2245171993028,1cyclictest1700471-21CPU14
2245216992929,0cyclictest0-21swapper/1622:52:588
2245216992928,1cyclictest1700472-21CPU8
224521199290,28cyclictest1700471-21CPU7
2245209992929,0cyclictest0-21swapper/1419:28:586
2245201992921,8cyclictest0-21swapper/1223:00:244
2245201992921,8cyclictest0-21swapper/1223:00:244
2245187992929,0cyclictest0-21swapper/822:45:5818
2245187992929,0cyclictest0-21swapper/819:24:5918
2245177992928,1cyclictest0-21swapper/623:49:5916
2245171992928,1cyclictest1700472-21CPU14
2245222992828,0cyclictest0-21swapper/1820:20:5810
2245222992828,0cyclictest0-21swapper/1819:43:5910
2245201992823,4cyclictest1700471-21CPU4
2245196992824,3cyclictest0-21swapper/1021:41:582
2245177992828,0cyclictest0-21swapper/621:38:5916
2245171992828,0cyclictest0-21swapper/422:51:5914
2245165992828,0cyclictest0-21swapper/222:52:5912
2245216992726,0cyclictest0-21swapper/1619:34:598
2245211992719,8cyclictest0-21swapper/1519:42:597
224521199270,25cyclictest0-21swapper/1500:39:477
2245209992727,0cyclictest0-21swapper/1421:28:596
2245209992727,0cyclictest0-21swapper/1400:29:596
2245206992710,0cyclictest0-21swapper/1300:39:465
2245177992727,0cyclictest0-21swapper/621:52:5916
2245171992727,0cyclictest0-21swapper/420:59:5914
2245171992727,0cyclictest0-21swapper/419:58:5914
2245171992727,0cyclictest0-21swapper/419:58:5814
2245171992727,0cyclictest0-21swapper/419:23:5814
2245165992727,0cyclictest0-21swapper/219:27:5812
2245216992626,0cyclictest0-21swapper/1620:36:588
224521199260,26cyclictest0-21swapper/1523:30:007
224521199260,25cyclictest0-21swapper/1500:31:497
2245198992620,6cyclictest0-21swapper/1120:10:583
2245187992626,0cyclictest0-21swapper/820:54:5818
2245187992626,0cyclictest0-21swapper/819:43:5918
2245165992626,0cyclictest0-21swapper/220:36:5912
2245165992626,0cyclictest0-21swapper/219:34:5812
2245157992622,3cyclictest231rcuc/021:41:590
2245226992525,0cyclictest0-21swapper/1900:02:5911
224521999250,25cyclictest0-21swapper/1723:00:259
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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