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2026-04-16 - 21:45

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

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 rackbslot8s (updated Thu Apr 16, 2026 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
562153213494,20sleep50-21swapper/507:06:565
5622712117103,9sleep20-21swapper/207:08:372
5621062115101,9sleep40-21swapper/407:06:154
562052211499,10sleep60-21swapper/607:05:296
562171211399,9sleep30-21swapper/307:07:093
560253211397,10sleep70-21swapper/707:05:067
562196211095,10sleep10-21swapper/107:07:311
562316210692,9sleep00-21swapper/007:09:150
562607991040,100cyclictest0-21swapper/009:15:140
562613991030,100cyclictest0-21swapper/207:56:372
56262199102100,2cyclictest553-21snmpd11:05:034
5626139910299,3cyclictest553-21snmpd11:18:412
562613991020,100cyclictest0-21swapper/209:01:212
5626079910299,3cyclictest553-21snmpd12:27:200
5626079910299,3cyclictest553-21snmpd07:49:430
562607991020,100cyclictest0-21swapper/012:15:040
562607991020,100cyclictest0-21swapper/011:10:150
562607991020,100cyclictest0-21swapper/008:59:000
562632991010,99cyclictest0-21swapper/709:28:477
562632991010,101cyclictest0-21swapper/707:52:377
562632991010,100cyclictest0-21swapper/711:13:517
5626269910199,2cyclictest553-21snmpd12:22:575
5626269910199,2cyclictest553-21snmpd09:59:305
5626269910199,2cyclictest553-21snmpd09:34:055
562626991010,100cyclictest0-21swapper/510:09:455
5626179910199,2cyclictest553-21snmpd12:10:193
5626179910199,2cyclictest553-21snmpd07:53:463
5626179910198,3cyclictest553-21snmpd10:08:343
5626139910198,3cyclictest625598-21cat09:10:152
5626139910198,3cyclictest553-21snmpd11:38:062
5626139910198,3cyclictest553-21snmpd09:40:392
562613991010,99cyclictest0-21swapper/207:54:582
562613991010,100cyclictest0-21swapper/209:54:082
562609991010,100cyclictest0-21swapper/111:21:581
562609991010,100cyclictest0-21swapper/108:59:211
5626079910198,3cyclictest553-21snmpd08:21:530
562607991010,100cyclictest0-21swapper/008:03:350
562632991000,99cyclictest0-21swapper/710:38:317
562632991000,99cyclictest0-21swapper/708:58:497
562632991000,100cyclictest0-21swapper/711:30:547
562632991000,0cyclictest0-21swapper/710:59:177
5626299910099,1cyclictest553-21snmpd12:39:536
5626299910099,1cyclictest553-21snmpd09:31:376
5626299910099,1cyclictest553-21snmpd09:15:506
5626299910099,1cyclictest553-21snmpd09:04:316
5626299910099,1cyclictest553-21snmpd08:45:336
5626299910099,1cyclictest553-21snmpd08:38:546
562629991000,99cyclictest0-21swapper/612:21:146
562629991000,99cyclictest0-21swapper/610:00:136
562629991000,99cyclictest0-21swapper/608:20:516
562629991000,100cyclictest0-21swapper/611:19:446
5626269910099,1cyclictest553-21snmpd12:38:175
5626269910099,1cyclictest553-21snmpd12:14:405
5626269910099,1cyclictest553-21snmpd11:39:195
5626269910099,1cyclictest553-21snmpd11:33:225
5626269910099,1cyclictest553-21snmpd11:01:505
5626269910099,1cyclictest553-21snmpd10:30:105
5626269910099,1cyclictest553-21snmpd09:55:005
5626269910099,1cyclictest553-21snmpd08:34:595
5626269910099,1cyclictest553-21snmpd07:15:335
5626269910098,2cyclictest553-21snmpd09:16:385
562626991000,99cyclictest0-21swapper/511:58:055
562626991000,99cyclictest0-21swapper/509:36:415
562626991000,100cyclictest0-21swapper/511:12:055
5626219910099,1cyclictest855671-21cat12:35:154
5626219910099,1cyclictest553-21snmpd11:41:124
5626219910099,1cyclictest553-21snmpd10:19:034
5626219910099,1cyclictest553-21snmpd10:03:394
5626219910099,1cyclictest553-21snmpd09:35:354
5626219910099,1cyclictest553-21snmpd08:55:454
5626219910099,1cyclictest553-21snmpd08:44:334
5626219910098,2cyclictest0-21swapper/409:57:384
562621991000,99cyclictest0-21swapper/412:30:144
562621991000,99cyclictest0-21swapper/411:56:084
562621991000,99cyclictest0-21swapper/407:24:214
5626179910099,1cyclictest553-21snmpd07:59:583
5626179910098,2cyclictest553-21snmpd10:26:283
5626179910098,2cyclictest553-21snmpd10:15:243
5626179910098,2cyclictest553-21snmpd07:41:303
5626179910098,1cyclictest553-21snmpd12:04:133
5626179910096,3cyclictest553-21snmpd10:46:373
5626139910099,1cyclictest553-21snmpd11:46:522
5626139910099,1cyclictest553-21snmpd11:46:512
5626139910098,1cyclictest553-21snmpd11:20:202
5626139910097,3cyclictest553-21snmpd11:53:172
562613991000,99cyclictest0-21swapper/209:38:452
562613991000,99cyclictest0-21swapper/209:25:192
562613991000,99cyclictest0-21swapper/208:18:142
562613991000,100cyclictest0-21swapper/211:28:492
562613991000,100cyclictest0-21swapper/209:19:312
562613991000,100cyclictest0-21swapper/208:40:492
5626099910099,1cyclictest709570-21cat10:25:151
5626099910099,1cyclictest602470-21cat08:25:141
5626099910099,1cyclictest553-21snmpd08:19:591
5626099910099,1cyclictest553-21snmpd08:12:591
5626099910099,1cyclictest553-21snmpd07:42:311
5626099910099,1cyclictest553-21snmpd07:11:441
562609991000,100cyclictest0-21swapper/111:51:221
562609991000,100cyclictest0-21swapper/111:11:291
562609991000,100cyclictest0-21swapper/110:08:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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