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2026-03-29 - 19:30

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 Sun Mar 29, 2026 12:46:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36006922301292,6sleep50-21swapper/507:07:515
36007102295274,13sleep40-21swapper/407:08:064
36008362294258,28sleep70-21swapper/707:09:547
36007832292258,26sleep30-21swapper/307:09:113
36006362290270,13sleep00-21swapper/007:07:070
36005582288272,9sleep60-21swapper/607:06:006
36006972287266,13sleep10-21swapper/107:07:551
36006562285266,12sleep20-21swapper/207:07:242
3601319993630,6cyclictest3674566-21kworker/u16:1+events_unbound09:40:374
3601317993532,2cyclictest3602352-21ntpq07:10:212
3601319993432,2cyclictest3702547-21kworker/u16:3+events_unbound10:35:274
3601318993430,3cyclictest2342098-21f2b/f.sshd11:19:593
3601322993330,2cyclictest449069-21snmpd10:05:067
3601322993329,3cyclictest449069-21snmpd11:27:367
3601321993330,2cyclictest449069-21snmpd12:14:256
3601321993330,2cyclictest449069-21snmpd11:20:446
3601321993330,2cyclictest449069-21snmpd09:53:176
3601320993330,3cyclictest449069-21snmpd11:52:455
3601320993330,3cyclictest449069-21snmpd11:52:455
3601320993330,2cyclictest449069-21snmpd08:07:145
3601320993330,2cyclictest3618003-21cat07:40:145
3601319993332,1cyclictest3621094-21gcc07:45:284
3601319993331,1cyclictest3668774-21ntpq09:20:234
3601319993331,1cyclictest3623525-21ntpq07:50:234
3601319993330,2cyclictest449069-21snmpd12:27:564
3601319993330,2cyclictest449069-21snmpd10:55:134
3601319993330,2cyclictest449069-21snmpd10:47:014
3601318993330,2cyclictest449069-21snmpd08:17:563
3601318993330,2cyclictest449069-21snmpd07:31:143
360131899330,30cyclictest0-21swapper/311:09:533
3601322993230,2cyclictest449069-21snmpd09:31:317
3601322993229,2cyclictest449069-21snmpd11:11:177
3601322993229,2cyclictest449069-21snmpd09:01:557
360132299320,31cyclictest0-21swapper/710:18:367
360132299320,31cyclictest0-21swapper/709:52:367
360132299320,31cyclictest0-21swapper/708:38:107
360132299320,31cyclictest0-21swapper/707:32:317
3601321993230,2cyclictest449069-21snmpd10:34:106
3601321993230,1cyclictest449069-21snmpd08:40:066
3601321993230,1cyclictest449069-21snmpd07:40:236
3601321993230,1cyclictest449069-21snmpd07:26:436
3601321993229,2cyclictest449069-21snmpd09:42:356
3601321993229,2cyclictest3694963-21gpg-connect-age10:15:016
360132199320,30cyclictest0-21swapper/611:43:186
360132199320,30cyclictest0-21swapper/610:40:566
360132199320,30cyclictest0-21swapper/608:00:266
3601320993230,1cyclictest449069-21snmpd10:06:065
3601320993229,2cyclictest516654-21ntpd12:09:435
3601320993229,2cyclictest449069-21snmpd09:57:485
3601320993229,2cyclictest449069-21snmpd09:57:475
3601320993229,2cyclictest339-21systemd-journal07:20:015
3601320993228,3cyclictest449069-21snmpd11:59:015
3601319993231,1cyclictest3626622-21taskset07:55:294
3601319993230,2cyclictest449069-21snmpd12:19:344
3601319993229,2cyclictest449069-21snmpd11:57:464
3601319993229,2cyclictest3655786-21cat08:55:144
3601318993229,2cyclictest449069-21snmpd11:26:183
3601318993229,2cyclictest449069-21snmpd09:34:083
3601318993229,2cyclictest3698671-21cat10:20:133
360131899320,30cyclictest0-21swapper/309:47:363
3601317993230,2cyclictest3708693-21cat10:40:162
360131799320,32cyclictest0-21swapper/208:55:422
360131799320,31cyclictest0-21swapper/212:30:152
3601316993230,2cyclictest449069-21snmpd12:37:321
3601316993230,2cyclictest449069-21snmpd07:17:491
3601315993230,2cyclictest3753764-21cat12:10:150
3601315993230,2cyclictest3741252-21cat11:45:160
3601315993230,1cyclictest449069-21snmpd11:25:120
3601322993129,2cyclictest449069-21snmpd07:45:357
3601322993129,2cyclictest449069-21snmpd07:36:177
3601322993129,1cyclictest449069-21snmpd12:16:227
3601322993129,1cyclictest449069-21snmpd11:17:007
3601322993129,1cyclictest449069-21snmpd10:01:027
3601322993129,1cyclictest449069-21snmpd10:01:027
3601322993129,1cyclictest449069-21snmpd09:46:297
3601322993129,1cyclictest449069-21snmpd08:15:297
3601322993129,1cyclictest449069-21snmpd07:56:027
3601322993128,2cyclictest3605437-21cat07:15:147
360132299310,30cyclictest0-21swapper/711:40:437
360132299310,30cyclictest0-21swapper/709:58:397
360132299310,30cyclictest0-21swapper/709:58:387
360132299310,30cyclictest0-21swapper/709:09:077
360132299310,30cyclictest0-21swapper/708:31:367
360132299310,30cyclictest0-21swapper/708:06:417
360132299310,30cyclictest0-21swapper/707:51:497
360132299310,30cyclictest0-21swapper/707:29:417
360132299310,1cyclictest0-21swapper/712:39:327
360132299310,1cyclictest0-21swapper/710:57:387
360132299310,1cyclictest0-21swapper/708:52:037
3601321993130,1cyclictest449069-21snmpd11:18:386
3601321993130,1cyclictest449069-21snmpd10:36:466
3601321993130,1cyclictest449069-21snmpd08:55:376
3601321993130,1cyclictest449069-21snmpd07:31:596
3601321993129,2cyclictest449069-21snmpd11:09:296
3601321993129,1cyclictest449069-21snmpd10:05:386
3601321993129,1cyclictest0-21swapper/611:51:016
3601321993129,1cyclictest0-21swapper/611:51:006
3601321993128,2cyclictest449069-21snmpd08:06:366
360132199310,30cyclictest0-21swapper/612:16:196
360132199310,30cyclictest0-21swapper/611:13:296
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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