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2025-12-13 - 19:03

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 13, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2800799117115,2cyclictest0-21swapper/411:11:374
2798399106106,0cyclictest3-21ksoftirqd/011:11:370
28007999999,0cyclictest192950irq/36-eth1-rx-11:43:124
27983999291,1cyclictest0-21swapper/011:43:120
28003997372,1cyclictest0-21swapper/308:06:373
28013996867,1cyclictest0-21swapper/508:55:485
28007995352,1cyclictest0-21swapper/407:47:484
28024995050,0cyclictest192950irq/36-eth1-rx-08:06:377
27995995050,0cyclictest29-21ksoftirqd/209:21:372
2776724736,8sleep70-21swapper/707:09:427
2752624735,8sleep30-21swapper/307:06:173
2774624635,8sleep40-21swapper/407:09:234
2749324615,17sleep00-21swapper/007:05:500
27983994343,0cyclictest3-21ksoftirqd/007:47:480
2775624331,8sleep50-21swapper/507:09:325
2684824321,18sleep60-21swapper/607:05:166
2751323717,17sleep10-21swapper/107:06:061
2747523615,18sleep20-21swapper/207:05:362
27986992424,0cyclictest21-21ksoftirqd/108:55:481
2800399200,2cyclictest0-21swapper/311:58:273
2800399200,2cyclictest0-21swapper/311:26:573
2800399200,2cyclictest0-21swapper/310:58:133
2800399200,2cyclictest0-21swapper/310:38:283
2800399200,2cyclictest0-21swapper/310:21:273
2800399200,2cyclictest0-21swapper/309:25:453
2800399200,2cyclictest0-21swapper/309:24:073
2800399200,2cyclictest0-21swapper/309:11:353
2800399200,2cyclictest0-21swapper/308:26:103
2801399190,18cyclictest0-21swapper/510:20:175
2800399190,1cyclictest0-21swapper/308:02:333
2800399190,1cyclictest0-21swapper/307:46:133
27995991919,0cyclictest29-21ksoftirqd/212:06:392
2802099170,16cyclictest0-21swapper/611:25:206
27986991715,1cyclictest0-21swapper/110:20:201
2802499161,13cyclictest17411-21perf10:00:007
2802499161,13cyclictest17411-21perf10:00:007
2802499160,13cyclictest0-21swapper/711:08:597
2798399160,15cyclictest0-21swapper/008:35:210
2802499150,13cyclictest0-21swapper/711:19:597
27983991510,2cyclictest0-21swapper/007:45:000
2802499140,11cyclictest0-21swapper/708:15:137
28024991312,1cyclictest0-21swapper/712:27:597
28024991312,1cyclictest0-21swapper/709:00:167
28024991310,3cyclictest0-21swapper/707:32:137
28020991310,2cyclictest0-21swapper/609:09:136
2802099130,12cyclictest0-21swapper/608:28:446
28013991310,2cyclictest0-21swapper/507:14:285
2801399130,1cyclictest0-21swapper/510:15:225
2800799130,13cyclictest0-21swapper/408:02:434
2800799130,12cyclictest0-21swapper/410:25:144
2800799130,12cyclictest0-21swapper/409:58:594
2800799130,12cyclictest0-21swapper/409:58:594
2800799130,12cyclictest0-21swapper/408:18:284
2798399131,9cyclictest0-21swapper/007:19:590
2802499128,4cyclictest0-21swapper/710:38:297
2802499128,4cyclictest0-21swapper/709:39:287
28024991210,2cyclictest0-21swapper/710:57:297
28024991210,2cyclictest0-21swapper/709:07:287
2802099120,11cyclictest0-21swapper/611:38:286
2802099120,11cyclictest0-21swapper/608:39:136
2802099120,11cyclictest0-21swapper/608:14:146
2801399129,3cyclictest0-21swapper/510:44:445
2801399120,2cyclictest0-21swapper/511:37:135
2800799120,11cyclictest0-21swapper/408:59:434
2800799120,11cyclictest0-21swapper/408:28:584
27986991211,1cyclictest0-21swapper/109:40:411
2801399119,2cyclictest0-21swapper/511:14:555
2801399119,2cyclictest0-21swapper/508:45:595
2801399118,2cyclictest0-21swapper/508:25:295
2801399110,10cyclictest0-21swapper/509:55:175
2801399110,10cyclictest0-21swapper/509:55:175
2800799119,2cyclictest0-21swapper/410:21:444
2799599111,9cyclictest0-21swapper/211:35:142
27986991111,0cyclictest2487-21snmpd12:05:431
2798399118,2cyclictest0-21swapper/011:35:000
2798399118,2cyclictest0-21swapper/010:25:010
2798399118,1cyclictest3114550latency_hist12:35:000
2798399118,1cyclictest0-21swapper/012:10:160
2798399117,1cyclictest0-21swapper/007:50:190
2798399110,8cyclictest0-21swapper/010:40:010
2798399110,8cyclictest0-21swapper/009:25:000
2798399110,7cyclictest0-21swapper/011:29:590
2798399110,7cyclictest0-21swapper/010:00:000
2798399110,7cyclictest0-21swapper/010:00:000
2798399110,10cyclictest0-21swapper/008:09:590
2802099107,2cyclictest0-21swapper/612:27:446
2802099107,2cyclictest0-21swapper/610:28:446
2801399107,2cyclictest0-21swapper/511:03:285
2801399107,2cyclictest0-21swapper/510:30:295
2800799109,1cyclictest0-21swapper/410:09:434
2800799101,8cyclictest0-21swapper/411:30:194
27995991010,0cyclictest2487-21snmpd11:54:592
2798699101,8cyclictest0-21swapper/112:35:141
2798399107,1cyclictest0-21swapper/012:24:590
2798399106,3cyclictest0-21swapper/010:53:120
2798399100,9cyclictest0-21swapper/011:07:030
2798399100,9cyclictest0-21swapper/011:00:010
2798399100,9cyclictest0-21swapper/010:31:210
2798399100,9cyclictest0-21swapper/010:20:000
2798399100,9cyclictest0-21swapper/009:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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