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2025-11-21 - 18:35

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 Fri Nov 21, 2025 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7242322134115,14sleep70-21swapper/707:05:057
7262032131117,9sleep20-21swapper/207:07:572
7261592128113,10sleep50-21swapper/507:07:205
7247662128114,9sleep10-21swapper/107:05:151
7262592125110,10sleep00-21swapper/007:08:430
7261952124109,10sleep30-21swapper/307:07:503
7261982121107,9sleep60-21swapper/607:07:536
7242382121106,10sleep40-21swapper/407:05:104
7266389910299,3cyclictest546-21snmpd11:27:274
726638991020,101cyclictest0-21swapper/408:37:514
726619991020,100cyclictest0-21swapper/010:24:550
726650991010,101cyclictest0-21swapper/709:30:417
726650991010,100cyclictest0-21swapper/710:10:577
7266479910199,2cyclictest546-21snmpd10:30:256
7266479910199,2cyclictest546-21snmpd10:09:036
726647991010,100cyclictest0-21swapper/610:03:306
726647991010,100cyclictest0-21swapper/609:29:386
726647991010,100cyclictest0-21swapper/607:41:106
726642991010,100cyclictest0-21swapper/512:33:565
7266389910199,2cyclictest546-21snmpd08:12:054
726638991010,101cyclictest0-21swapper/409:43:324
726638991010,100cyclictest0-21swapper/412:27:204
726638991010,0cyclictest0-21swapper/412:01:494
72663099101100,1cyclictest546-21snmpd10:15:243
726628991010,99cyclictest0-21swapper/208:52:362
726628991010,99cyclictest0-21swapper/208:41:482
726628991010,100cyclictest0-21swapper/207:30:522
7266249910199,2cyclictest546-21snmpd11:55:371
7266249910199,1cyclictest546-21snmpd07:36:191
7266199910199,2cyclictest546-21snmpd12:20:530
7266199910199,2cyclictest546-21snmpd11:16:480
7266199910199,2cyclictest546-21snmpd10:00:000
7266199910199,2cyclictest546-21snmpd07:17:360
726619991011,0cyclictest0-21swapper/011:38:170
726619991010,101cyclictest0-21swapper/009:51:320
726619991010,100cyclictest0-21swapper/009:25:200
7266509910099,1cyclictest243-21kworker/7:109:20:347
726650991000,99cyclictest0-21swapper/711:19:397
726650991000,99cyclictest0-21swapper/711:00:147
726650991000,99cyclictest0-21swapper/708:30:187
726650991000,99cyclictest0-21swapper/708:25:537
726650991000,100cyclictest0-21swapper/710:23:407
726650991000,100cyclictest0-21swapper/709:05:167
7266479910099,1cyclictest546-21snmpd12:38:506
7266479910099,1cyclictest546-21snmpd11:20:006
7266479910099,1cyclictest546-21snmpd10:52:146
7266479910099,1cyclictest546-21snmpd08:40:486
7266479910099,1cyclictest546-21snmpd07:20:036
726647991000,99cyclictest0-21swapper/612:08:376
726647991000,100cyclictest0-21swapper/609:40:026
7266429910099,1cyclictest546-21snmpd11:57:375
7266429910099,1cyclictest546-21snmpd10:08:365
7266429910099,1cyclictest546-21snmpd08:51:275
7266429910099,1cyclictest546-21snmpd08:14:115
7266429910098,2cyclictest546-21snmpd09:46:415
726642991000,99cyclictest0-21swapper/508:44:455
726642991000,100cyclictest0-21swapper/512:39:475
726642991000,100cyclictest0-21swapper/511:48:185
7266389910099,1cyclictest546-21snmpd11:24:064
7266389910099,1cyclictest546-21snmpd10:26:164
7266389910099,1cyclictest546-21snmpd09:32:264
7266389910099,1cyclictest0-21swapper/412:21:084
7266389910098,2cyclictest546-21snmpd11:36:034
726638991000,99cyclictest0-21swapper/407:15:334
726638991000,100cyclictest788900-21diskmemload09:13:494
726638991000,100cyclictest0-21swapper/412:31:444
726638991000,100cyclictest0-21swapper/408:00:504
7266309910099,1cyclictest561-21ntpd10:51:263
7266309910099,1cyclictest561-21ntpd10:06:263
7266309910099,1cyclictest546-21snmpd11:01:113
7266309910099,1cyclictest546-21snmpd10:39:283
7266309910099,1cyclictest546-21snmpd09:05:343
7266309910098,1cyclictest597-21lldpd07:21:363
7266289910099,1cyclictest546-21snmpd11:47:552
7266289910099,1cyclictest546-21snmpd10:38:462
7266289910099,1cyclictest546-21snmpd10:03:392
7266289910099,1cyclictest546-21snmpd09:40:112
7266289910099,1cyclictest546-21snmpd09:17:522
7266289910099,1cyclictest546-21snmpd08:22:022
726628991000,99cyclictest0-21swapper/210:15:152
726628991000,99cyclictest0-21swapper/207:48:072
726628991000,100cyclictest0-21swapper/207:18:092
7266249910099,1cyclictest761079-21cat08:15:161
7266249910099,1cyclictest546-21snmpd11:24:091
7266249910099,1cyclictest546-21snmpd10:02:301
7266249910099,1cyclictest546-21snmpd09:37:381
7266249910099,1cyclictest546-21snmpd07:52:431
72662499100100,0cyclictest0-21swapper/111:41:091
726624991000,99cyclictest0-21swapper/112:25:351
726624991000,99cyclictest0-21swapper/111:16:171
726624991000,99cyclictest0-21swapper/107:30:241
7266199910099,1cyclictest546-21snmpd12:02:280
7266199910099,1cyclictest546-21snmpd07:55:250
7266199910098,2cyclictest546-21snmpd09:43:050
7266199910098,2cyclictest546-21snmpd08:32:030
726619991000,99cyclictest0-21swapper/011:04:230
726619991000,99cyclictest0-21swapper/008:20:140
726619991000,99cyclictest0-21swapper/008:06:230
726619991000,100cyclictest0-21swapper/011:33:000
726619991000,100cyclictest0-21swapper/010:57:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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