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2026-04-17 - 21:10

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 Apr 17, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241450999123123,0cyclictest2456332-21kworker/6:211:01:546
24139992121107,9sleep50-21swapper/507:06:235
24141452117103,9sleep10-21swapper/107:08:281
2412135211687,9sleep00-21swapper/007:05:060
24139622115100,10sleep60-21swapper/607:05:536
2414023211398,10sleep20-21swapper/207:06:442
2412002211398,10sleep30-21swapper/307:05:013
2412130211096,9sleep40-21swapper/407:05:024
2413945210995,9sleep70-21swapper/707:05:387
2414514991020,100cyclictest0-21swapper/711:43:527
2414514991020,100cyclictest0-21swapper/709:53:037
24145069910299,3cyclictest553-21snmpd09:27:445
24144999910299,3cyclictest553-21snmpd12:18:593
24144999910299,3cyclictest553-21snmpd09:53:263
2414495991020,100cyclictest0-21swapper/210:32:282
2414495991020,100cyclictest0-21swapper/208:25:332
2414495991020,0cyclictest0-21swapper/210:35:322
2414514991010,101cyclictest0-21swapper/711:16:277
2414514991010,100cyclictest0-21swapper/707:39:277
24145099910199,2cyclictest553-21snmpd12:22:326
24145099910199,2cyclictest553-21snmpd09:55:386
24145099910199,2cyclictest2456332-21kworker/6:210:14:266
24145099910199,1cyclictest553-21snmpd09:30:166
24145099910198,2cyclictest553-21snmpd10:35:316
241450999101100,1cyclictest2456332-21kworker/6:212:00:106
241450999101100,1cyclictest2456332-21kworker/6:211:25:326
241450999101100,1cyclictest2456332-21kworker/6:210:53:346
24145069910199,2cyclictest553-21snmpd11:10:335
24145069910199,2cyclictest553-21snmpd10:27:045
24145069910199,2cyclictest553-21snmpd09:23:045
24145069910198,3cyclictest553-21snmpd07:51:505
24145069910198,3cyclictest2556606-21cat10:20:145
2414506991010,99cyclictest0-21swapper/508:07:285
2414506991010,100cyclictest0-21swapper/509:58:395
24145039910199,2cyclictest553-21snmpd09:42:234
2414503991010,100cyclictest0-21swapper/411:43:424
2414503991010,100cyclictest0-21swapper/411:06:424
2414503991010,100cyclictest0-21swapper/410:14:194
24144999910198,3cyclictest553-21snmpd07:15:333
24144959910199,2cyclictest553-21snmpd12:36:502
24144959910199,2cyclictest553-21snmpd11:54:112
2414495991010,101cyclictest0-21swapper/208:43:572
2414495991010,100cyclictest0-21swapper/210:45:132
2414495991010,100cyclictest0-21swapper/207:22:092
24144909910199,2cyclictest0-21swapper/109:43:361
241449099101100,1cyclictest553-21snmpd12:18:231
241449099101100,1cyclictest553-21snmpd10:05:371
241448699101100,1cyclictest553-21snmpd08:04:410
2414514991000,99cyclictest0-21swapper/711:00:597
2414514991000,99cyclictest0-21swapper/707:49:227
2414514991000,100cyclictest0-21swapper/709:39:087
2414514991000,100cyclictest0-21swapper/709:07:207
24145099910099,1cyclictest553-21snmpd10:32:496
24145099910099,1cyclictest553-21snmpd09:36:206
24145099910099,1cyclictest553-21snmpd07:57:046
24145099910099,1cyclictest3737743-21kworker/6:008:15:196
24145099910099,1cyclictest3737743-21kworker/6:007:45:086
24145099910099,1cyclictest2456332-21kworker/6:212:13:466
24145099910099,1cyclictest2456332-21kworker/6:211:35:516
24145099910099,1cyclictest2456332-21kworker/6:211:20:246
24145099910099,1cyclictest2456332-21kworker/6:211:10:416
24145099910099,1cyclictest2456332-21kworker/6:211:05:446
24145099910099,1cyclictest2456332-21kworker/6:210:08:486
24145099910099,1cyclictest2456332-21kworker/6:210:00:126
24145099910099,1cyclictest2456332-21kworker/6:209:49:226
24145099910099,1cyclictest2456332-21kworker/6:209:15:186
24145099910099,1cyclictest2456332-21kworker/6:209:10:106
24145099910097,2cyclictest2456332-21kworker/6:210:28:566
2414509991000,99cyclictest0-21swapper/611:45:136
2414509991000,100cyclictest0-21swapper/611:53:526
2414509991000,100cyclictest0-21swapper/609:05:146
24145069910099,1cyclictest553-21snmpd11:20:475
24145069910098,2cyclictest553-21snmpd11:31:245
2414506991000,99cyclictest2477086-21diskmemload09:50:185
2414506991000,99cyclictest0-21swapper/510:49:355
2414506991000,99cyclictest0-21swapper/510:42:475
2414506991000,99cyclictest0-21swapper/509:00:075
2414506991000,99cyclictest0-21swapper/508:13:595
2414506991000,99cyclictest0-21swapper/508:01:105
2414506991000,97cyclictest0-21swapper/511:27:185
2414506991000,100cyclictest0-21swapper/508:52:125
2414506991000,100cyclictest0-21swapper/508:15:515
2414506991000,100cyclictest0-21swapper/507:43:105
24145039910099,1cyclictest553-21snmpd11:47:364
24145039910099,1cyclictest553-21snmpd11:32:464
24145039910099,1cyclictest553-21snmpd11:18:594
24145039910099,1cyclictest553-21snmpd09:15:554
24145039910099,1cyclictest553-21snmpd08:42:364
24145039910099,1cyclictest553-21snmpd08:25:024
24145039910099,1cyclictest553-21snmpd07:28:484
24145039910098,2cyclictest553-21snmpd09:29:264
24145039910097,2cyclictest553-21snmpd10:26:494
2414503991000,99cyclictest0-21swapper/411:24:394
2414503991000,100cyclictest0-21swapper/412:05:144
2414503991000,100cyclictest0-21swapper/412:00:144
2414503991000,100cyclictest0-21swapper/411:04:444
24144999910099,1cyclictest553-21snmpd12:36:593
24144999910099,1cyclictest553-21snmpd10:53:403
24144999910099,1cyclictest553-21snmpd10:44:443
24144999910098,2cyclictest553-21snmpd09:26:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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