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2025-12-06 - 07:08

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 Sat Dec 06, 2025 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19039302128114,9sleep60-21swapper/619:06:096
19039072128113,10sleep10-21swapper/119:05:491
19038932124109,10sleep70-21swapper/719:05:387
19041492123107,10sleep20-21swapper/219:09:182
19040102121106,10sleep30-21swapper/319:07:193
19041852120106,9sleep00-21swapper/019:09:480
19040942119105,9sleep40-21swapper/419:08:324
19040862118103,10sleep50-21swapper/519:08:255
19044599910299,3cyclictest3437785-21snmpd22:41:476
19044599910299,3cyclictest3437785-21snmpd22:41:476
1904459991020,0cyclictest0-21swapper/621:46:366
1904456991020,1cyclictest0-21swapper/522:08:405
19044489910299,2cyclictest3437785-21snmpd22:07:433
1904445991020,100cyclictest0-21swapper/223:02:022
19044369910299,3cyclictest3437785-21snmpd21:38:430
1904464991010,100cyclictest0-21swapper/720:31:527
19044599910199,2cyclictest1989572-21cat21:30:156
19044599910198,3cyclictest3437785-21snmpd00:06:266
1904459991010,101cyclictest0-21swapper/600:12:236
19044569910199,2cyclictest3437785-21snmpd23:30:065
19044569910199,2cyclictest3437785-21snmpd19:25:535
19044569910198,3cyclictest3437785-21snmpd23:37:435
19044569910198,3cyclictest3437785-21snmpd19:43:185
1904456991010,99cyclictest0-21swapper/521:40:335
1904456991010,99cyclictest0-21swapper/520:10:335
1904456991010,100cyclictest0-21swapper/520:31:435
19044519910199,2cyclictest3437785-21snmpd23:36:364
1904451991010,101cyclictest0-21swapper/422:09:434
19044489910199,2cyclictest3437785-21snmpd22:44:053
19044489910199,2cyclictest3437785-21snmpd22:44:053
19044489910199,2cyclictest3437785-21snmpd22:35:533
19044489910199,2cyclictest3437785-21snmpd19:31:563
19044459910199,2cyclictest3437785-21snmpd23:16:272
19044459910199,2cyclictest3437785-21snmpd22:15:072
19044459910198,2cyclictest3437785-21snmpd20:23:122
1904445991010,99cyclictest0-21swapper/220:10:332
1904445991010,99cyclictest0-21swapper/200:21:082
1904445991010,101cyclictest0-21swapper/219:27:352
1904445991010,101cyclictest0-21swapper/200:05:562
1904445991010,100cyclictest0-21swapper/220:40:282
1904445991010,0cyclictest0-21swapper/219:54:172
19044409910199,1cyclictest3437785-21snmpd00:18:531
190444099101100,1cyclictest3437785-21snmpd22:42:141
190444099101100,1cyclictest3437785-21snmpd22:42:141
1904440991010,100cyclictest0-21swapper/100:04:151
19044369910199,2cyclictest3437785-21snmpd23:09:060
19044369910199,2cyclictest3437785-21snmpd00:32:480
19044369910198,3cyclictest3437785-21snmpd22:50:170
1904436991010,100cyclictest0-21swapper/020:56:490
1904436991010,100cyclictest0-21swapper/020:19:420
1904464991000,99cyclictest0-21swapper/723:50:377
1904464991000,99cyclictest0-21swapper/723:36:337
1904464991000,99cyclictest0-21swapper/723:25:257
1904464991000,99cyclictest0-21swapper/722:35:567
1904464991000,99cyclictest0-21swapper/720:28:037
1904464991000,99cyclictest0-21swapper/720:19:007
1904464991000,99cyclictest0-21swapper/720:07:067
1904464991000,100cyclictest0-21swapper/722:32:257
1904464991000,100cyclictest0-21swapper/700:20:237
19044599910099,1cyclictest3437785-21snmpd22:23:286
19044599910099,1cyclictest3437785-21snmpd21:26:536
19044599910099,1cyclictest3437785-21snmpd20:23:516
19044599910098,2cyclictest3437785-21snmpd20:40:046
19044599910098,1cyclictest3437785-21snmpd19:23:386
1904459991000,99cyclictest0-21swapper/619:55:146
1904459991000,98cyclictest0-21swapper/621:09:386
1904459991000,100cyclictest0-21swapper/619:10:196
19044569910099,1cyclictest3437785-21snmpd22:27:405
19044569910099,1cyclictest3437785-21snmpd20:04:185
19044569910098,2cyclictest3437785-21snmpd23:29:395
19044569910098,2cyclictest3437785-21snmpd22:33:375
19044569910098,2cyclictest3437785-21snmpd00:04:025
19044569910097,3cyclictest3437785-21snmpd22:51:445
1904456991000,100cyclictest0-21swapper/522:39:445
1904456991000,100cyclictest0-21swapper/520:16:065
1904456991000,100cyclictest0-21swapper/500:27:595
19044519910099,1cyclictest3437785-21snmpd23:23:394
19044519910099,1cyclictest3437785-21snmpd20:57:444
19044519910098,2cyclictest3437785-21snmpd21:12:114
19044519910097,3cyclictest3437785-21snmpd23:40:104
1904451991000,99cyclictest0-21swapper/423:52:254
1904451991000,99cyclictest0-21swapper/423:07:214
1904451991000,99cyclictest0-21swapper/400:35:574
19044489910099,1cyclictest3437785-21snmpd21:25:353
19044489910098,2cyclictest3437785-21snmpd23:53:253
19044459910099,1cyclictest3437785-21snmpd23:24:332
19044459910099,1cyclictest3437785-21snmpd22:06:322
19044459910099,1cyclictest3437785-21snmpd21:31:112
19044459910099,1cyclictest3437785-21snmpd20:57:222
19044459910099,1cyclictest3437785-21snmpd00:37:212
19044459910098,2cyclictest3437785-21snmpd23:48:192
1904445991000,99cyclictest0-21swapper/200:26:292
1904445991000,99cyclictest0-21swapper/200:15:472
1904445991000,1cyclictest1921613-21df_inode19:40:142
1904445991000,100cyclictest0-21swapper/223:42:282
1904445991000,100cyclictest0-21swapper/220:39:342
19044409910099,1cyclictest3437785-21snmpd21:40:481
19044409910099,1cyclictest3437785-21snmpd19:21:381
1904440991000,99cyclictest0-21swapper/122:50:151
1904440991000,99cyclictest0-21swapper/122:33:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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