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2025-12-25 - 13:12

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 Thu Dec 25, 2025 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2923199122120,2cyclictest0-21swapper/710:35:357
2922099118117,1cyclictest0-21swapper/508:19:585
29193996464,0cyclictest21-21ksoftirqd/108:19:581
29188996362,1cyclictest3-21ksoftirqd/008:55:470
2891926040,17sleep70-21swapper/707:08:487
29220995655,1cyclictest0-21swapper/511:48:495
29188995150,1cyclictest0-21swapper/010:16:140
2876124432,8sleep40-21swapper/407:06:384
29188994242,0cyclictest3-21ksoftirqd/008:54:270
2892724020,17sleep60-21swapper/607:08:556
2875823817,18sleep10-21swapper/107:06:341
29213993635,1cyclictest0-21swapper/408:55:474
2881323616,17sleep20-21swapper/207:07:232
2876923615,18sleep30-21swapper/307:06:443
2892123514,18sleep00-21swapper/007:08:500
29220993433,1cyclictest0-21swapper/507:31:225
2920699332,30cyclictest0-21swapper/311:56:393
2920699332,30cyclictest0-21swapper/311:56:393
2892623221,8sleep50-21swapper/507:08:545
29213992323,0cyclictest192950irq/36-eth1-rx-10:16:144
29231991916,2cyclictest0-21swapper/710:20:207
2920699190,18cyclictest0-21swapper/311:38:393
2923199170,2cyclictest0-21swapper/708:15:047
29226991716,1cyclictest0-21swapper/609:35:186
29213991716,1cyclictest0-21swapper/408:54:274
2921399170,14cyclictest0-21swapper/410:30:194
2923199160,13cyclictest0-21swapper/712:08:207
2923199160,13cyclictest0-21swapper/707:31:207
2922699160,2cyclictest0-21swapper/609:25:056
2922099160,2cyclictest0-21swapper/511:50:355
2923199150,13cyclictest0-21swapper/708:13:347
29226991510,4cyclictest0-21swapper/609:24:206
2922099150,4cyclictest0-21swapper/509:55:345
2922099150,12cyclictest7606-21perf07:29:595
2918899157,1cyclictest0-21swapper/008:05:010
2918899150,8cyclictest0-21swapper/011:05:130
2922099140,0cyclictest0-21swapper/509:40:055
2921399140,2cyclictest0-21swapper/407:58:204
2921399140,13cyclictest0-21swapper/408:35:454
29193991412,1cyclictest2487-21snmpd12:33:201
2918899147,1cyclictest0-21swapper/012:35:100
2918899147,1cyclictest0-21swapper/009:04:160
2918899146,2cyclictest0-21swapper/010:34:590
2918899146,1cyclictest2271050latency_hist08:00:010
2918899144,5cyclictest13020-21munin-node07:40:100
2918899141,7cyclictest1229350cat11:55:000
2918899141,1cyclictest0-21swapper/009:20:000
2918899140,9cyclictest0-21swapper/011:30:120
2918899140,8cyclictest0-21swapper/009:35:180
2918899140,8cyclictest0-21swapper/008:23:500
2918899140,8cyclictest0-21swapper/007:35:290
2918899140,8cyclictest0-21swapper/007:11:460
2918899140,7cyclictest2533-21mrtg07:20:000
2918899140,7cyclictest0-21swapper/007:55:010
2918899140,7cyclictest0-21swapper/007:55:000
2918899140,5cyclictest0-21swapper/010:30:000
2918899140,13cyclictest0-21swapper/011:35:200
2918899140,12cyclictest0-21swapper/009:10:210
29231991310,2cyclictest0-21swapper/707:48:057
29231991310,2cyclictest0-21swapper/707:48:057
29226991312,1cyclictest0-21swapper/611:55:496
29226991312,1cyclictest0-21swapper/611:55:496
29226991312,1cyclictest0-21swapper/607:10:346
29226991311,2cyclictest0-21swapper/607:22:496
2922099130,12cyclictest0-21swapper/510:15:465
29206991311,1cyclictest2487-21snmpd09:06:353
2918899137,5cyclictest0-21swapper/008:15:180
2918899137,3cyclictest0-21swapper/008:50:010
2918899137,1cyclictest0-21swapper/012:24:570
2918899137,1cyclictest0-21swapper/007:25:080
2918899136,1cyclictest0-21swapper/011:15:460
2918899136,1cyclictest0-21swapper/010:01:520
2918899136,1cyclictest0-21swapper/007:45:580
2918899136,1cyclictest0-21swapper/007:45:580
2918899135,1cyclictest8263-21irqstats11:45:160
2918899131,9cyclictest0-21swapper/010:55:000
2918899130,8cyclictest0-21swapper/011:44:550
2918899130,8cyclictest0-21swapper/010:10:130
2918899130,8cyclictest0-21swapper/009:57:460
2918899130,8cyclictest0-21swapper/008:40:120
2918899130,8cyclictest0-21swapper/007:31:470
2918899130,7cyclictest0-21swapper/011:24:020
2918899130,7cyclictest0-21swapper/010:56:220
2918899130,7cyclictest0-21swapper/010:38:090
2918899130,7cyclictest0-21swapper/010:24:070
2918899130,7cyclictest0-21swapper/009:20:510
2918899130,6cyclictest0-21swapper/012:29:550
2918899130,6cyclictest0-21swapper/009:06:140
2918899130,1cyclictest0-21swapper/010:40:120
2918899130,1cyclictest0-21swapper/008:05:180
2918899130,1cyclictest0-21swapper/007:23:280
2918899130,12cyclictest0-21swapper/011:25:170
2918899130,12cyclictest0-21swapper/009:32:480
2918899130,12cyclictest0-21swapper/008:30:190
2918899130,11cyclictest0-21swapper/011:10:330
2922699128,4cyclictest0-21swapper/610:24:056
29226991211,1cyclictest0-21swapper/612:20:206
29226991211,1cyclictest0-21swapper/611:18:356
29226991211,1cyclictest0-21swapper/609:03:046
2922699120,12cyclictest0-21swapper/610:59:206
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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