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2026-03-28 - 16:23

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #0

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.

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 r0s0s.osadl.org (updated Sat Mar 28, 2026 12:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28507492305266,12sleep20-21swapper/207:05:362
28510512296262,26sleep50-21swapper/507:09:495
28508442296261,27sleep00-21swapper/007:06:560
28507782295258,28sleep40-21swapper/407:06:034
28509952294274,12sleep60-21swapper/607:09:036
28509902290257,25sleep10-21swapper/107:08:581
28507632287266,13sleep70-21swapper/707:05:507
28507502286266,13sleep30-21swapper/307:05:383
2851539993938,1cyclictest2975074-21kworker/u16:2+flush-8:011:20:012
285154399340,33cyclictest0-21swapper/610:25:556
2851542993430,3cyclictest2857934-21cat07:20:165
2851544993330,2cyclictest449069-21snmpd11:51:117
2851543993330,3cyclictest449069-21snmpd07:25:336
2851543993330,2cyclictest449069-21snmpd10:06:106
2851543993330,2cyclictest449069-21snmpd07:33:006
285154399330,32cyclictest0-21swapper/610:34:386
285154399330,30cyclictest0-21swapper/607:35:146
285154399330,1cyclictest0-21swapper/610:52:326
2851542993329,3cyclictest2910790-21cat09:05:155
285154199330,30cyclictest0-21swapper/411:30:544
2851540993330,2cyclictest449069-21snmpd07:44:093
2851539993330,2cyclictest2987656-21kworker/u16:0+events_unbound11:40:122
285153999330,30cyclictest0-21swapper/209:15:562
2851538993330,2cyclictest449069-21snmpd12:00:081
2851538993330,2cyclictest449069-21snmpd12:00:071
2851538993330,2cyclictest449069-21snmpd09:05:511
2851538993330,2cyclictest449069-21snmpd08:48:021
2851538993329,3cyclictest449069-21snmpd10:58:031
2851538993329,3cyclictest449069-21snmpd07:14:451
2851537993330,3cyclictest449069-21snmpd09:52:100
2851537993330,2cyclictest449069-21snmpd10:12:350
2851537993330,2cyclictest449069-21snmpd10:12:340
2851544993230,2cyclictest449069-21snmpd11:28:587
2851544993230,2cyclictest449069-21snmpd11:14:397
2851544993230,2cyclictest449069-21snmpd09:34:497
2851544993230,2cyclictest449069-21snmpd09:07:547
2851544993229,2cyclictest449069-21snmpd09:35:127
2851544993229,2cyclictest2920781-21cat09:25:117
285154499320,31cyclictest0-21swapper/709:23:037
285154499320,30cyclictest0-21swapper/708:33:387
285154499320,30cyclictest0-21swapper/707:11:027
2851543993230,1cyclictest449069-21snmpd10:35:106
2851543993230,1cyclictest449069-21snmpd09:04:216
2851543993229,2cyclictest449069-21snmpd12:15:086
2851542993230,2cyclictest449069-21snmpd12:22:205
2851542993229,2cyclictest449069-21snmpd11:04:595
2851542993229,2cyclictest449069-21snmpd10:42:505
2851542993229,2cyclictest449069-21snmpd09:46:465
2851542993229,2cyclictest449069-21snmpd08:09:305
2851542993228,3cyclictest449069-21snmpd12:06:265
2851542993228,3cyclictest449069-21snmpd08:31:225
2851541993230,2cyclictest449069-21snmpd12:19:594
2851541993229,2cyclictest449069-21snmpd09:01:384
2851541993229,2cyclictest449069-21snmpd08:56:444
285154199320,31cyclictest0-21swapper/411:07:584
285154199320,30cyclictest0-21swapper/407:51:394
2851540993230,2cyclictest449069-21snmpd12:29:563
2851540993230,2cyclictest449069-21snmpd08:38:433
2851540993230,2cyclictest449069-21snmpd07:17:243
2851540993230,1cyclictest449069-21snmpd09:45:243
2851540993229,2cyclictest449069-21snmpd09:37:573
285154099320,31cyclictest0-21swapper/310:35:503
285154099320,31cyclictest0-21swapper/309:30:123
285154099320,31cyclictest0-21swapper/309:25:123
285154099320,30cyclictest0-21swapper/308:20:423
2851539993230,2cyclictest449069-21snmpd09:27:272
2851539993230,2cyclictest449069-21snmpd09:07:322
2851539993230,2cyclictest449069-21snmpd07:56:272
2851539993230,2cyclictest2882981-21cat08:10:182
2851538993230,1cyclictest449069-21snmpd08:41:201
2851538993229,2cyclictest449069-21snmpd11:44:321
2851538993229,2cyclictest449069-21snmpd10:54:391
2851538993229,2cyclictest449069-21snmpd10:12:441
2851538993229,2cyclictest449069-21snmpd10:12:431
2851538993229,2cyclictest449069-21snmpd09:59:551
2851538993228,3cyclictest449069-21snmpd07:59:371
285153899320,31cyclictest0-21swapper/107:20:161
2851537993230,1cyclictest449069-21snmpd11:00:440
2851537993229,2cyclictest449069-21snmpd11:56:550
2851544993130,1cyclictest449069-21snmpd12:31:177
2851544993130,1cyclictest449069-21snmpd10:57:147
2851544993130,1cyclictest449069-21snmpd10:09:027
2851544993129,2cyclictest449069-21snmpd10:21:507
2851544993129,2cyclictest449069-21snmpd09:57:557
2851544993129,2cyclictest449069-21snmpd08:44:297
2851544993129,2cyclictest449069-21snmpd08:02:007
2851544993129,2cyclictest2978982-21cat11:20:157
2851544993129,1cyclictest449069-21snmpd11:49:287
2851544993129,1cyclictest449069-21snmpd11:08:317
2851544993129,1cyclictest449069-21snmpd08:15:167
2851544993128,2cyclictest449069-21snmpd12:09:537
285154499310,31cyclictest0-21swapper/711:55:147
285154499310,31cyclictest0-21swapper/707:39:357
285154499310,30cyclictest0-21swapper/711:19:347
285154499310,30cyclictest0-21swapper/710:14:027
285154499310,30cyclictest0-21swapper/710:14:017
285154499310,30cyclictest0-21swapper/709:17:207
285154499310,30cyclictest0-21swapper/708:36:137
285154499310,1cyclictest0-21swapper/712:29:487
285154499310,1cyclictest0-21swapper/710:19:407
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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