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2026-03-12 - 19:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #7

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.
Unexpectedly long latencies may be caused by SMIs
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 rack7slot7s.osadl.org (updated Thu Mar 12, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1427329263,25sleep00-21swapper/007:07:470
1414028470,9sleep20-21swapper/207:06:052
1414128067,9sleep30-21swapper/307:06:063
1417627558,13sleep10-21swapper/107:06:321
1453299321,28cyclictest31948-21/usr/sbin/munin11:20:222
300112310,1sleep10-21swapper/112:16:411
14523993130,1cyclictest0-21swapper/008:13:420
1453299300,29cyclictest0-21swapper/211:34:542
1453299300,17cyclictest0-21swapper/211:50:092
1453299290,28cyclictest0-21swapper/212:10:392
1453299280,27cyclictest0-21swapper/210:44:182
1453299280,18cyclictest0-21swapper/210:16:072
1453299270,27cyclictest0-21swapper/211:40:532
14523992714,9cyclictest7886-21sh12:23:140
1453299260,25cyclictest0-21swapper/210:47:232
1453299250,21cyclictest0-21swapper/210:24:472
1452399254,2cyclictest537-21snmpd09:43:100
1452399250,9cyclictest0-21swapper/011:54:020
1452399250,2cyclictest0-21swapper/009:32:100
1452899233,19cyclictest23912-21sh10:36:061
14523992323,0cyclictest0-21swapper/009:38:100
1452399230,22cyclictest0-21swapper/009:48:060
1453299220,21cyclictest0-21swapper/211:08:372
1453299220,18cyclictest0-21swapper/211:15:272
1452899220,20cyclictest0-21swapper/110:45:581
14528992117,4cyclictest25-21ksoftirqd/109:33:321
1453299200,18cyclictest0-21swapper/211:39:452
1453299200,15cyclictest0-21swapper/211:29:272
1452399200,3cyclictest0-21swapper/010:46:540
1452399200,17cyclictest0-21swapper/012:15:530
1452399200,17cyclictest0-21swapper/011:07:060
1453299190,1cyclictest0-21swapper/211:10:182
14528991918,1cyclictest0-21swapper/110:28:471
1452899190,19cyclictest0-21swapper/111:27:521
1452399198,2cyclictest0-21swapper/010:40:190
1452399194,7cyclictest24161-21munin-run11:34:590
14523991912,6cyclictest31948-21seq12:37:290
1452399190,1cyclictest0-21swapper/012:02:100
14532991817,1cyclictest0-21swapper/212:33:132
14532991817,1cyclictest0-21swapper/210:33:222
14532991816,1cyclictest0-21swapper/212:25:112
14532991816,1cyclictest0-21swapper/210:39:212
1453299180,4cyclictest0-21swapper/209:16:022
1453299180,18cyclictest0-21swapper/212:08:072
14528991816,2cyclictest9648-21kworker/1:012:27:021
1452899181,14cyclictest27181-21aten2_r7power_v10:00:131
1452899180,18cyclictest8610-21kworker/1:210:50:131
1452899180,18cyclictest0-21swapper/111:41:301
1452899180,18cyclictest0-21swapper/109:40:431
1452399189,2cyclictest4738-21dump-pmu-power09:05:000
1452399181,1cyclictest141rcu_preempt12:11:340
1452399181,17cyclictest0-21swapper/010:37:500
14523991810,1cyclictest28424-21grep07:35:250
1453299171,2cyclictest0-21swapper/211:02:152
1453299171,0cyclictest0-21swapper/209:32:072
1453299170,2cyclictest0-21swapper/212:35:512
1453299170,17cyclictest0-21swapper/209:46:292
1453299170,13cyclictest0-21swapper/210:03:132
1452899171,1cyclictest7108-21diskmemload09:22:121
1452899171,15cyclictest18424-21grep07:15:191
14523991711,1cyclictest0-21swapper/011:45:110
1452399170,2cyclictest0-21swapper/012:28:010
1453499160,16cyclictest0-21swapper/310:20:163
1453499160,15cyclictest0-21swapper/309:47:013
1453299161,15cyclictest0-21swapper/210:05:122
1453299160,1cyclictest0-21swapper/208:10:132
1453299160,15cyclictest0-21swapper/209:56:572
1452899160,16cyclictest0-21swapper/109:55:121
1452399169,2cyclictest7647-21head08:00:210
1452399165,6cyclictest12555-21/usr/sbin/munin10:30:100
14523991610,2cyclictest30522-21ls07:40:200
14523991610,1cyclictest5245-21tr09:05:130
1452399160,2cyclictest0-21swapper/012:34:270
14534991515,0cyclictest0-21swapper/311:00:113
14534991514,1cyclictest0-21swapper/312:15:193
1453499150,14cyclictest0-21swapper/310:04:473
14532991514,1cyclictest0-21swapper/210:55:062
1453299150,2cyclictest0-21swapper/211:45:122
1453299150,15cyclictest0-21swapper/212:21:572
1453299150,15cyclictest0-21swapper/210:52:302
1453299150,14cyclictest0-21swapper/209:35:022
14523991513,1cyclictest4368-21ssh10:25:130
1452399150,3cyclictest0-21swapper/010:54:000
14534991412,2cyclictest0-21swapper/312:09:553
14534991412,1cyclictest7108-21diskmemload10:55:133
1453499141,13cyclictest0-21swapper/312:39:583
14534991411,2cyclictest27267-21df07:35:143
14534991410,3cyclictest31963-21sed08:50:263
14534991410,3cyclictest11609-21awk09:50:223
1453499140,14cyclictest0-21swapper/310:33:073
1453299142,1cyclictest55850irq/129-enp2s0-10:10:182
1453299140,14cyclictest0-21swapper/209:23:102
14528991413,1cyclictest0-21swapper/108:52:201
14528991411,3cyclictest38150irq/131-snd_hda09:50:281
14528991410,3cyclictest27460-21grep07:35:161
14528991410,3cyclictest20579-21grep10:34:591
14528991410,3cyclictest12313-21tr08:10:201
14523991413,1cyclictest0-21swapper/011:29:430
14523991413,1cyclictest0-21swapper/011:10:180
14523991413,1cyclictest0-21swapper/009:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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