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2025-02-19 - 00:46

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 Tue Jan 28, 2025 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29837472237218,12sleep40-21swapper/419:06:254
29838762236216,13sleep30-21swapper/319:07:133
29838012233212,13sleep00-21swapper/019:06:450
29837422233214,12sleep20-21swapper/219:06:232
29839752232211,13sleep70-21swapper/719:07:497
29839082232213,12sleep60-21swapper/619:07:246
29836342231212,12sleep50-21swapper/519:05:465
29825902230211,12sleep10-21swapper/119:05:181
2984703994018,22cyclictest0-21swapper/421:11:494
298471399370,35cyclictest0-21swapper/720:50:387
298470999370,36cyclictest0-21swapper/621:25:266
298470999350,34cyclictest0-21swapper/622:35:566
298470999350,34cyclictest0-21swapper/620:25:066
2984701993533,2cyclictest1462-21snmpd23:23:483
298470999340,34cyclictest0-21swapper/623:00:566
298470999340,34cyclictest0-21swapper/622:09:456
298470999340,13cyclictest0-21swapper/623:47:206
2984713993332,1cyclictest1462-21snmpd22:46:247
2984713993332,1cyclictest1462-21snmpd22:46:237
2984709993311,21cyclictest0-21swapper/622:49:086
2984709993311,21cyclictest0-21swapper/622:49:086
298470999330,0cyclictest0-21swapper/623:50:226
298470999330,0cyclictest0-21swapper/623:05:246
298470999330,0cyclictest0-21swapper/619:51:026
2984701993332,1cyclictest1462-21snmpd21:24:453
2984698993330,3cyclictest1462-21snmpd19:41:422
2984713993231,1cyclictest0-21swapper/722:29:187
2984709993210,21cyclictest0-21swapper/620:51:046
2984708993230,2cyclictest1462-21snmpd22:42:505
2984703993232,0cyclictest0-21swapper/400:23:344
2984701993231,1cyclictest0-21swapper/322:39:573
298469899329,22cyclictest0-21swapper/200:22:412
2984696993232,0cyclictest0-21swapper/119:37:141
298470999319,21cyclictest0-21swapper/619:55:246
2984709993129,2cyclictest0-21swapper/621:33:096
2984698993125,3cyclictest29449391kworker/u16:0+i91519:11:592
2984692993131,0cyclictest0-21swapper/023:23:480
298469299310,31cyclictest0-21swapper/023:28:540
2984713993030,0cyclictest0-21swapper/723:14:347
2984713993029,1cyclictest0-21swapper/723:53:317
298470999308,21cyclictest0-21swapper/620:33:446
298470999308,21cyclictest0-21swapper/600:03:506
2984709992929,0cyclictest0-21swapper/621:55:526
298470399290,0cyclictest0-21swapper/419:11:594
2984713992827,0cyclictest0-21swapper/722:55:107
2984709992828,0cyclictest0-21swapper/621:50:076
2984701992828,0cyclictest0-21swapper/322:47:023
2984701992828,0cyclictest0-21swapper/322:47:023
2984696992828,0cyclictest0-21swapper/100:14:321
2984692992826,2cyclictest0-21swapper/020:11:390
2984713992727,0cyclictest0-21swapper/722:50:487
2984713992727,0cyclictest0-21swapper/722:37:347
2984713992727,0cyclictest0-21swapper/720:29:327
2984713992726,1cyclictest0-21swapper/700:31:237
2984708992727,0cyclictest0-21swapper/520:36:445
2984703992725,1cyclictest1462-21snmpd23:27:584
2984703992721,5cyclictest1462-21snmpd19:42:364
2984692992726,1cyclictest1462-21snmpd22:47:020
2984692992726,1cyclictest1462-21snmpd22:47:020
2984713992626,0cyclictest0-21swapper/720:08:547
2984713992625,1cyclictest1462-21snmpd21:01:507
2984713992621,4cyclictest1462-21snmpd21:28:337
2984713992620,5cyclictest3099890-21cat22:20:157
298470999265,21cyclictest0-21swapper/600:36:566
298470999264,21cyclictest0-21swapper/622:30:026
298470999260,25cyclictest0-21swapper/623:30:466
2984708992626,0cyclictest0-21swapper/522:29:175
298470899260,25cyclictest0-21swapper/500:24:595
2984701992626,0cyclictest0-21swapper/323:59:163
2984701992626,0cyclictest0-21swapper/322:41:423
2984698992626,0cyclictest2952393-21kworker/2:1+events20:08:582
2984698992621,4cyclictest1462-21snmpd19:46:332
2984713992524,1cyclictest0-21swapper/723:35:247
298471399250,0cyclictest0-21swapper/700:03:587
298470999253,21cyclictest0-21swapper/623:15:526
298470999250,24cyclictest0-21swapper/623:56:236
298470999250,24cyclictest0-21swapper/620:05:486
2984708992525,0cyclictest0-21swapper/523:14:345
2984708992521,4cyclictest3121391-21awk23:00:165
2984708992520,4cyclictest1462-21snmpd21:45:465
298470899250,25cyclictest0-21swapper/523:42:585
298470899250,22cyclictest0-21swapper/519:10:405
298470899250,0cyclictest0-21swapper/522:46:235
298470899250,0cyclictest0-21swapper/522:46:235
2984703992525,0cyclictest0-21swapper/421:04:104
2984701992525,0cyclictest0-21swapper/321:39:333
2984701992525,0cyclictest0-21swapper/320:02:453
2984701992524,1cyclictest0-21swapper/323:42:413
298470199250,0cyclictest0-21swapper/322:51:083
2984698992521,4cyclictest1462-21snmpd00:13:592
298469899250,24cyclictest0-21swapper/221:36:062
298469899250,24cyclictest0-21swapper/221:22:122
298469899250,1cyclictest0-21swapper/200:27:572
2984713992424,0cyclictest0-21swapper/719:31:027
2984713992423,1cyclictest0-21swapper/700:18:457
2984713992421,3cyclictest1462-21snmpd21:30:037
2984713992419,4cyclictest1462-21snmpd20:59:117
298471399240,23cyclictest0-21swapper/719:53:127
298470999242,21cyclictest0-21swapper/623:21:516
298470999242,21cyclictest0-21swapper/600:26:226
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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