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2025-12-19 - 21:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #3

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 rack0slot3s.osadl.org (updated Fri Dec 19, 2025 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11900172258210,17sleep70-21swapper/719:07:507
11899322258233,16sleep20-21swapper/219:06:412
11901472257215,32sleep40-21swapper/419:09:324
11898872256247,6sleep30-21swapper/319:06:093
11898722256215,32sleep60-21swapper/619:05:566
11898422251210,17sleep00-21swapper/019:05:340
11900422243219,16sleep50-21swapper/519:08:125
11899582240211,19sleep10-21swapper/119:07:041
11916342840,0sleep0201rcuc/019:10:160
1190495993327,2cyclictest0-21swapper/000:10:170
1190499992922,5cyclictest527-21systemd-journal19:15:351
119052499280,28cyclictest0-21swapper/719:30:147
1190504992822,4cyclictest0-21swapper/220:05:162
1190499992821,5cyclictest527-21systemd-journal23:32:591
1190499992821,5cyclictest527-21systemd-journal20:06:471
119052499270,25cyclictest0-21swapper/723:20:107
1190519992720,6cyclictest1380-21snmpd23:14:586
1190519992720,6cyclictest1380-21snmpd23:14:586
119051299270,25cyclictest0-21swapper/421:41:494
1190508992723,3cyclictest1380-21snmpd21:30:173
119052499260,24cyclictest0-21swapper/722:17:067
1190519992621,4cyclictest0-21swapper/623:00:516
1190515992626,0cyclictest2069207-21kworker/5:1+events23:15:225
1190515992626,0cyclictest2069207-21kworker/5:1+events23:15:215
119051599260,24cyclictest0-21swapper/522:18:055
119051599260,24cyclictest0-21swapper/521:27:495
119051599260,22cyclictest0-21swapper/523:42:115
1190508992622,3cyclictest1380-21snmpd23:20:523
119050499260,22cyclictest0-21swapper/200:11:372
1190499992619,5cyclictest527-21systemd-journal21:24:591
1190499992618,5cyclictest527-21systemd-journal22:39:391
119049999260,24cyclictest0-21swapper/123:44:401
119049999260,24cyclictest0-21swapper/121:55:511
119049999260,22cyclictest0-21swapper/119:44:371
1190495992622,3cyclictest1380-21snmpd21:22:570
1190495992622,3cyclictest1380-21snmpd00:04:230
1190524992521,3cyclictest1380-21snmpd20:55:087
1190519992521,3cyclictest1380-21snmpd23:46:426
1190519992521,3cyclictest1380-21snmpd20:36:206
1190519992520,4cyclictest1380-21snmpd19:56:196
1190519992518,5cyclictest0-21swapper/623:19:146
1190519992518,5cyclictest0-21swapper/623:19:146
119051999250,25cyclictest0-21swapper/622:08:236
119051999250,22cyclictest0-21swapper/620:46:306
119051999250,22cyclictest0-21swapper/620:46:306
119051999250,1cyclictest0-21swapper/623:34:106
119051999250,1cyclictest0-21swapper/622:52:436
119051999250,1cyclictest0-21swapper/619:32:366
1190515992518,3cyclictest0-21swapper/521:14:245
119051599250,1cyclictest0-21swapper/520:15:075
1190512992521,3cyclictest1380-21snmpd23:54:234
1190512992521,3cyclictest1380-21snmpd21:10:124
1190512992521,3cyclictest1380-21snmpd21:09:184
1190512992521,3cyclictest1215-21ntpd22:46:254
1190512992518,5cyclictest0-21swapper/422:04:094
1190512992518,3cyclictest0-21swapper/422:35:304
1190508992521,3cyclictest1380-21snmpd21:53:463
119050899250,22cyclictest171rcu_preempt20:53:143
1190504992522,3cyclictest1380-21snmpd19:12:112
1190504992521,3cyclictest1380-21snmpd23:00:062
1190504992521,3cyclictest1380-21snmpd21:26:452
1190504992521,3cyclictest1320861-21cat23:05:172
1190504992518,5cyclictest0-21swapper/221:03:462
1190499992521,3cyclictest1380-21snmpd20:25:041
1190499992520,4cyclictest527-21systemd-journal19:10:361
1190499992519,5cyclictest1380-21snmpd23:56:261
1190499992518,4cyclictest527-21systemd-journal22:17:371
119049999251,24cyclictest0-21swapper/100:26:581
119049999250,23cyclictest0-21swapper/121:33:471
119049999250,23cyclictest0-21swapper/100:05:551
119049999250,22cyclictest0-21swapper/123:09:591
1190495992521,3cyclictest1380-21snmpd23:03:000
1190495992518,5cyclictest0-21swapper/023:34:320
1190524992421,3cyclictest1380-21snmpd23:41:157
1190524992421,3cyclictest1380-21snmpd00:02:537
1190524992421,2cyclictest1380-21snmpd19:24:517
119052499240,14cyclictest0-21swapper/719:40:237
1190519992421,2cyclictest1380-21snmpd20:52:056
1190519992420,3cyclictest1380-21snmpd22:18:126
1190519992418,5cyclictest1380-21snmpd21:48:436
1190519992413,7cyclictest0-21swapper/623:40:196
119051999241,22cyclictest0-21swapper/622:04:416
119051999240,22cyclictest0-21swapper/622:35:576
119051999240,22cyclictest0-21swapper/621:21:496
1190515992421,3cyclictest1380-21snmpd20:05:165
1190515992421,3cyclictest1380-21snmpd19:58:025
1190515992420,3cyclictest1380-21snmpd23:21:385
1190515992417,5cyclictest0-21swapper/519:31:305
119051599240,22cyclictest0-21swapper/522:32:215
119051599240,22cyclictest0-21swapper/520:32:035
1190512992420,3cyclictest1380-21snmpd20:06:404
1190508992422,1cyclictest1380-21snmpd22:40:423
1190508992420,3cyclictest1380-21snmpd22:22:293
1190504992421,3cyclictest1380-21snmpd22:53:212
1190504992420,3cyclictest1380-21snmpd22:23:292
1190504992420,3cyclictest1380-21snmpd21:51:402
1190504992420,3cyclictest1380-21snmpd19:20:452
1190504992420,3cyclictest1301737-21cat22:30:182
1190504992417,5cyclictest0-21swapper/220:30:042
1190504992417,3cyclictest0-21swapper/223:32:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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