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2026-04-21 - 23:58

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 Tue Apr 21, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14315822119105,9sleep40-21swapper/407:08:394
14313852117102,10sleep20-21swapper/207:05:482
14314962116101,10sleep10-21swapper/107:07:231
14315632115100,10sleep30-21swapper/307:08:223
1431576211398,10sleep70-21swapper/707:08:357
1431380211398,9sleep60-21swapper/607:05:446
1429564211399,9sleep00-21swapper/007:05:060
1431536211096,9sleep50-21swapper/507:07:595
143190799103100,3cyclictest553-21snmpd11:34:373
14319049910318,20cyclictest0-21swapper/208:51:052
1431924991020,100cyclictest0-21swapper/711:15:337
14319209910299,3cyclictest553-21snmpd12:07:386
1431920991020,100cyclictest0-21swapper/611:34:226
1431904991020,102cyclictest0-21swapper/212:07:562
1431924991010,101cyclictest0-21swapper/712:25:127
1431924991010,101cyclictest0-21swapper/711:12:127
1431924991010,101cyclictest0-21swapper/709:25:327
14319209910199,2cyclictest553-21snmpd09:34:036
1431920991010,1cyclictest0-21swapper/610:50:156
1431920991010,0cyclictest0-21swapper/610:10:056
14319159910199,2cyclictest570-21ntpd10:41:575
14319159910199,2cyclictest553-21snmpd10:16:525
143191599101100,1cyclictest553-21snmpd07:58:305
1431912991010,100cyclictest0-21swapper/409:11:364
1431912991010,100cyclictest0-21swapper/407:46:324
14319079910199,2cyclictest553-21snmpd09:41:333
14319049910199,2cyclictest553-21snmpd10:42:532
14319049910199,2cyclictest553-21snmpd10:06:462
14319049910198,3cyclictest1539346-21cat09:50:152
1431904991010,99cyclictest0-21swapper/208:18:572
14319019910199,2cyclictest553-21snmpd11:47:521
14319019910199,2cyclictest553-21snmpd07:30:171
1431924991000,99cyclictest0-21swapper/708:49:317
1431924991000,99cyclictest0-21swapper/708:49:317
1431924991000,99cyclictest0-21swapper/708:34:017
1431924991000,100cyclictest0-21swapper/712:23:517
1431924991000,100cyclictest0-21swapper/708:57:267
14319209910099,1cyclictest553-21snmpd09:21:026
14319209910099,1cyclictest553-21snmpd09:05:236
14319209910099,1cyclictest553-21snmpd07:19:406
14319209910099,0cyclictest553-21snmpd09:54:186
14319209910098,2cyclictest553-21snmpd12:21:216
1431920991000,100cyclictest0-21swapper/612:30:156
1431920991000,100cyclictest0-21swapper/610:27:446
1431920991000,100cyclictest0-21swapper/607:35:146
1431920991000,100cyclictest0-21swapper/607:14:466
14319159910099,1cyclictest553-21snmpd12:32:245
14319159910099,1cyclictest553-21snmpd11:18:305
14319159910099,1cyclictest553-21snmpd10:53:395
14319159910099,1cyclictest553-21snmpd09:29:395
14319159910099,1cyclictest553-21snmpd08:36:255
14319159910098,2cyclictest553-21snmpd11:26:055
1431915991000,99cyclictest0-21swapper/511:07:395
1431915991000,99cyclictest0-21swapper/510:48:025
1431915991000,100cyclictest0-21swapper/511:55:295
1431915991000,100cyclictest0-21swapper/510:11:525
1431915991000,100cyclictest0-21swapper/509:22:505
1431915991000,100cyclictest0-21swapper/508:21:455
1431915991000,100cyclictest0-21swapper/508:07:515
1431915991000,100cyclictest0-21swapper/507:33:565
14319129910099,1cyclictest553-21snmpd10:46:294
14319129910099,1cyclictest553-21snmpd08:19:064
14319129910099,1cyclictest553-21snmpd08:02:244
14319129910099,1cyclictest553-21snmpd07:20:434
14319129910098,1cyclictest553-21snmpd12:16:214
1431912991000,99cyclictest0-21swapper/410:21:224
1431912991000,100cyclictest0-21swapper/411:22:044
1431912991000,100cyclictest0-21swapper/411:03:124
1431912991000,100cyclictest0-21swapper/409:57:224
14319079910099,1cyclictest553-21snmpd11:39:193
14319079910099,1cyclictest553-21snmpd10:10:403
14319079910099,1cyclictest553-21snmpd09:03:203
14319079910099,1cyclictest553-21snmpd08:17:363
14319079910099,1cyclictest553-21snmpd08:00:213
14319079910099,0cyclictest553-21snmpd09:18:113
14319079910098,2cyclictest553-21snmpd12:31:093
14319079910098,2cyclictest553-21snmpd12:25:093
14319079910098,2cyclictest553-21snmpd11:00:243
14319079910098,2cyclictest553-21snmpd08:51:403
14319049910099,1cyclictest553-21snmpd11:46:192
14319049910099,1cyclictest553-21snmpd08:08:362
14319049910098,2cyclictest553-21snmpd08:46:192
14319049910098,2cyclictest553-21snmpd08:46:192
14319049910097,3cyclictest553-21snmpd11:29:402
14319049910097,3cyclictest1522373-21cat09:35:142
1431904991000,99cyclictest0-21swapper/212:21:422
1431904991000,99cyclictest0-21swapper/210:21:502
1431904991000,99cyclictest0-21swapper/209:55:222
1431904991000,99cyclictest0-21swapper/207:20:462
1431904991000,100cyclictest0-21swapper/210:30:412
14319019910099,1cyclictest553-21snmpd11:07:151
14319019910099,1cyclictest553-21snmpd10:13:131
14319019910099,1cyclictest553-21snmpd08:49:581
14319019910099,1cyclictest553-21snmpd08:49:581
14319019910099,1cyclictest553-21snmpd08:35:131
14319019910099,1cyclictest553-21snmpd08:26:131
14319019910099,1cyclictest553-21snmpd08:24:571
14319019910099,1cyclictest553-21snmpd08:15:271
14319019910099,1cyclictest553-21snmpd07:48:181
14319019910099,1cyclictest1493219-21diskmemload09:41:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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