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2026-03-11 - 13:54

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 Wed Mar 11, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24144332118103,10sleep50-21swapper/519:06:415
24144942117102,10sleep10-21swapper/119:07:321
2414448211788,9sleep20-21swapper/219:06:532
24144962115100,10sleep30-21swapper/319:07:343
24145492114100,9sleep00-21swapper/019:08:190
2412549211399,9sleep70-21swapper/719:05:077
2414360211298,9sleep60-21swapper/619:05:386
2414589211197,9sleep40-21swapper/419:08:564
241491499103100,3cyclictest553-21snmpd22:29:173
24149149910299,3cyclictest553-21snmpd20:16:303
24149309910199,2cyclictest0-21swapper/722:39:087
2414930991010,100cyclictest0-21swapper/722:42:567
24149259910199,2cyclictest553-21snmpd23:14:596
24149259910199,2cyclictest553-21snmpd23:01:176
24149259910199,2cyclictest553-21snmpd21:07:026
24149259910198,2cyclictest553-21snmpd00:36:196
241492599101100,1cyclictest553-21snmpd21:53:306
24149229910199,2cyclictest553-21snmpd22:41:285
24149229910198,3cyclictest2660630-21cat23:55:165
2414922991010,100cyclictest0-21swapper/521:37:155
24149199910199,2cyclictest553-21snmpd21:25:474
24149149910199,2cyclictest553-21snmpd21:50:423
24149149910199,2cyclictest553-21snmpd19:20:073
24149149910198,3cyclictest553-21snmpd20:32:463
241491499101100,1cyclictest553-21snmpd21:24:533
2414910991010,1cyclictest0-21swapper/221:16:562
2414910991010,100cyclictest0-21swapper/221:56:582
2414910991010,100cyclictest0-21swapper/221:44:332
2414906991010,100cyclictest0-21swapper/122:00:141
24149029910199,2cyclictest553-21snmpd00:21:430
24149029910199,2cyclictest553-21snmpd00:03:220
2414930991000,99cyclictest0-21swapper/722:58:387
2414930991000,99cyclictest0-21swapper/721:23:297
2414930991000,99cyclictest0-21swapper/700:35:197
2414930991000,99cyclictest0-21swapper/700:05:287
2414930991000,100cyclictest0-21swapper/700:34:497
24149259910099,1cyclictest553-21snmpd23:51:186
24149259910099,1cyclictest553-21snmpd22:47:016
24149259910099,1cyclictest553-21snmpd22:44:526
24149259910099,1cyclictest553-21snmpd22:32:346
24149259910099,1cyclictest553-21snmpd22:07:466
24149259910099,1cyclictest553-21snmpd22:04:576
24149259910099,1cyclictest553-21snmpd20:38:076
24149259910099,1cyclictest553-21snmpd20:01:246
24149259910099,1cyclictest553-21snmpd19:40:506
24149259910098,2cyclictest553-21snmpd23:29:276
24149259910098,1cyclictest553-21snmpd20:45:386
2414925991000,99cyclictest0-21swapper/623:55:436
2414925991000,100cyclictest0-21swapper/621:03:226
24149229910099,1cyclictest553-21snmpd19:57:325
24149229910099,1cyclictest553-21snmpd19:22:435
24149229910099,1cyclictest553-21snmpd19:15:465
24149229910099,1cyclictest553-21snmpd00:31:075
24149229910098,2cyclictest553-21snmpd22:22:255
24149229910097,3cyclictest553-21snmpd22:59:355
24149229910096,3cyclictest553-21snmpd21:14:035
2414922991000,99cyclictest0-21swapper/520:35:105
2414922991000,100cyclictest0-21swapper/522:33:325
2414922991000,100cyclictest0-21swapper/521:58:035
2414922991000,100cyclictest0-21swapper/520:57:045
2414922991000,100cyclictest0-21swapper/500:21:505
2414922991000,100cyclictest0-21swapper/500:16:265
2414922991000,100cyclictest0-21swapper/500:12:165
24149199910099,1cyclictest553-21snmpd21:50:544
24149199910099,1cyclictest553-21snmpd20:19:034
24149199910098,2cyclictest553-21snmpd00:03:464
24149149910099,1cyclictest553-21snmpd23:59:033
24149149910099,1cyclictest553-21snmpd23:21:303
24149149910099,1cyclictest553-21snmpd20:36:113
24149149910099,1cyclictest553-21snmpd00:18:373
24149149910098,2cyclictest553-21snmpd22:35:373
24149149910098,2cyclictest553-21snmpd21:14:113
24149149910097,3cyclictest553-21snmpd23:09:173
24149109910099,1cyclictest553-21snmpd20:12:332
24149109910099,1cyclictest553-21snmpd19:14:102
2414910991000,99cyclictest0-21swapper/220:05:522
2414910991000,99cyclictest0-21swapper/219:46:242
2414910991000,99cyclictest0-21swapper/219:46:232
2414910991000,99cyclictest0-21swapper/219:40:592
2414910991000,100cyclictest0-21swapper/223:24:072
2414910991000,100cyclictest0-21swapper/223:06:142
24149069910099,1cyclictest553-21snmpd23:20:411
24149069910099,1cyclictest553-21snmpd00:11:071
24149069910098,2cyclictest553-21snmpd23:34:121
24149069910098,1cyclictest553-21snmpd00:16:521
2414906991000,99cyclictest0-21swapper/123:37:481
2414906991000,99cyclictest0-21swapper/121:35:501
2414906991000,99cyclictest0-21swapper/119:57:141
2414906991000,99cyclictest0-21swapper/119:12:041
2414906991000,99cyclictest0-21swapper/100:31:111
2414906991000,100cyclictest0-21swapper/123:59:181
2414906991000,100cyclictest0-21swapper/122:51:481
2414906991000,100cyclictest0-21swapper/122:27:431
2414906991000,100cyclictest0-21swapper/120:21:001
24149029910099,1cyclictest553-21snmpd23:55:540
24149029910099,1cyclictest553-21snmpd19:26:400
24149029910099,1cyclictest553-21snmpd00:38:340
241493099990,99cyclictest0-21swapper/723:48:067
241493099990,99cyclictest0-21swapper/723:48:067
241493099990,99cyclictest0-21swapper/723:43:277
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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