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2025-12-20 - 22:25

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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 rack0slot1s.osadl.org (updated Sat Dec 20, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3609910299,2cyclictest0-21swapper/510:01:505
335999898,0cyclictest21-21ksoftirqd/108:36:571
360999392,1cyclictest0-21swapper/510:07:425
360998077,2cyclictest0-21swapper/508:29:595
335997368,4cyclictest21-21ksoftirqd/108:29:561
364996563,1cyclictest0-21swapper/611:13:266
3249025443,7sleep70-21swapper/707:08:267
3046425240,8sleep60-21swapper/607:05:046
3258824534,8sleep40-21swapper/407:09:514
3241624422,8sleep50-21swapper/507:07:275
3249223817,18sleep00-21swapper/007:08:270
3254923614,18sleep30-21swapper/307:09:183
3238423616,17sleep20-21swapper/207:07:002
3046823615,18sleep10-21swapper/107:05:071
34799190,2cyclictest0-21swapper/307:40:493
36499180,15cyclictest32344-21munin-run10:20:006
360991817,1cyclictest0-21swapper/508:36:575
326991812,5cyclictest2487-21snmpd11:30:040
326991811,6cyclictest2487-21snmpd11:25:350
326991711,4cyclictest0-21swapper/008:20:210
37099160,13cyclictest0-21swapper/707:19:497
36099160,13cyclictest0-21swapper/511:56:045
35399160,13cyclictest0-21swapper/408:59:344
32699161,13cyclictest0-21swapper/007:50:180
32699160,1cyclictest7302-21switchtime11:35:220
32699160,13cyclictest0-21swapper/008:00:010
370991510,4cyclictest0-21swapper/708:53:187
37099150,1cyclictest0-21swapper/711:28:207
35399150,13cyclictest0-21swapper/410:35:054
32699159,5cyclictest0-21swapper/012:00:010
32699151,13cyclictest0-21swapper/007:35:000
32699150,1cyclictest2646-21grep08:15:130
32699150,1cyclictest12144-21latency_hist09:39:590
32699150,1cyclictest0-21swapper/009:15:210
32699150,1cyclictest0-21swapper/007:50:010
32699150,14cyclictest0-21swapper/012:35:180
32699150,14cyclictest0-21swapper/009:30:210
32699150,12cyclictest2485-21mrtg10:25:000
370991410,4cyclictest0-21swapper/711:17:497
370991410,4cyclictest0-21swapper/711:17:497
36499140,2cyclictest0-21swapper/608:18:336
32699141,12cyclictest0-21swapper/009:50:000
32699140,1cyclictest3444-21latency_hist12:35:010
32699140,1cyclictest0-21swapper/012:05:000
32699140,1cyclictest0-21swapper/011:20:110
32699140,1cyclictest0-21swapper/011:20:110
32699140,1cyclictest0-21swapper/011:00:000
32699140,1cyclictest0-21swapper/010:15:000
32699140,1cyclictest0-21swapper/010:00:210
32699140,1cyclictest0-21swapper/009:25:160
32699140,1cyclictest0-21swapper/008:10:170
32699140,1cyclictest0-21swapper/007:20:000
32699140,13cyclictest9135-21dump-pmu-power08:29:590
32699140,13cyclictest10102-21sh10:40:010
32699140,13cyclictest0-21swapper/011:00:140
32699140,13cyclictest0-21swapper/009:50:450
32699140,12cyclictest25730-21perf12:15:010
370991312,1cyclictest0-21swapper/707:45:217
37099130,12cyclictest0-21swapper/709:04:207
353991312,1cyclictest0-21swapper/407:15:494
353991310,3cyclictest0-21swapper/411:02:054
32699137,5cyclictest11205-21munin-run07:30:000
32699136,5cyclictest21739-21crond08:55:000
32699136,5cyclictest0-21swapper/009:15:000
32699131,11cyclictest0-21swapper/010:20:000
32699131,11cyclictest0-21swapper/008:40:130
32699130,6cyclictest0-21swapper/007:15:000
32699130,1cyclictest1957050cat08:49:590
32699130,1cyclictest0-21swapper/012:20:200
32699130,1cyclictest0-21swapper/012:15:210
32699130,1cyclictest0-21swapper/011:53:190
32699130,1cyclictest0-21swapper/011:10:010
32699130,1cyclictest0-21swapper/010:34:590
32699130,1cyclictest0-21swapper/010:10:000
32699130,1cyclictest0-21swapper/009:20:230
32699130,12cyclictest2222350latency_hist10:00:000
32699130,12cyclictest12000-21grep11:45:170
32699130,11cyclictest29331-21perf09:10:000
37099120,10cyclictest0-21swapper/710:39:497
36099120,12cyclictest0-21swapper/507:51:195
341991211,0cyclictest2487-21snmpd10:06:502
32699129,2cyclictest0-21swapper/008:40:000
32699126,5cyclictest16238-21mrtg07:40:000
32699125,5cyclictest0-21swapper/008:09:550
32699120,1cyclictest10573-21latency_hist11:45:010
32699120,1cyclictest0-21swapper/011:11:550
32699120,1cyclictest0-21swapper/010:50:210
32699120,1cyclictest0-21swapper/010:40:270
32699120,1cyclictest0-21swapper/010:26:170
32699120,1cyclictest0-21swapper/008:57:140
32699120,1cyclictest0-21swapper/008:04:220
32699120,1cyclictest0-21swapper/007:40:200
32699120,1cyclictest0-21swapper/007:23:000
32699120,11cyclictest0-21swapper/011:15:360
32699120,11cyclictest0-21swapper/011:15:360
32699120,10cyclictest0-21swapper/012:08:370
32699120,10cyclictest0-21swapper/009:02:550
119872120,0sleep20-21swapper/207:30:142
36099118,2cyclictest0-21swapper/509:52:495
36099118,2cyclictest0-21swapper/507:57:355
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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