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2026-05-24 - 01:07

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 May 23, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16562012123100,10sleep70-21swapper/707:08:027
1656018211888,10sleep00-21swapper/007:05:230
16561512117102,10sleep20-21swapper/207:07:182
16562892116101,10sleep10-21swapper/107:09:171
16562172116102,9sleep30-21swapper/307:08:153
1656312211399,9sleep60-21swapper/607:09:376
1656067210692,9sleep40-21swapper/407:06:074
1656059210692,9sleep50-21swapper/507:06:005
1656751991030,0cyclictest0-21swapper/507:55:155
1656759991020,100cyclictest0-21swapper/711:39:527
1656759991020,100cyclictest0-21swapper/709:40:447
165675599102100,2cyclictest1752576-21kworker/6:210:31:526
16567319910299,3cyclictest553-21snmpd08:02:281
1656731991020,102cyclictest0-21swapper/109:20:221
1656759991010,100cyclictest0-21swapper/710:07:097
1656759991010,100cyclictest0-21swapper/708:29:147
1656759991010,0cyclictest0-21swapper/711:06:307
165675599101100,1cyclictest1752576-21kworker/6:209:43:066
16567519910199,2cyclictest553-21snmpd10:16:105
16567519910199,1cyclictest553-21snmpd11:20:125
16567519910198,3cyclictest553-21snmpd10:51:565
1656751991010,0cyclictest0-21swapper/509:06:045
16567469910199,2cyclictest553-21snmpd12:06:554
16567469910199,2cyclictest553-21snmpd10:21:514
1656746991010,100cyclictest0-21swapper/410:53:294
16567429910199,2cyclictest553-21snmpd11:03:183
16567429910199,2cyclictest553-21snmpd10:36:563
16567429910199,2cyclictest553-21snmpd10:06:223
16567429910199,2cyclictest553-21snmpd08:29:483
16567429910199,1cyclictest605-21lldpd10:34:133
16567359910199,2cyclictest553-21snmpd11:31:422
16567359910199,2cyclictest553-21snmpd11:08:532
16567319910199,2cyclictest553-21snmpd10:37:251
16567319910199,2cyclictest553-21snmpd07:44:551
16567319910199,2cyclictest553-21snmpd07:26:431
16567319910199,2cyclictest0-21swapper/111:54:131
16567319910198,3cyclictest553-21snmpd09:08:081
1656731991010,101cyclictest0-21swapper/109:51:201
1656731991010,100cyclictest0-21swapper/111:10:171
1656759991000,99cyclictest0-21swapper/711:57:207
1656759991000,100cyclictest0-21swapper/712:18:367
1656759991000,100cyclictest0-21swapper/712:01:297
1656759991000,100cyclictest0-21swapper/709:01:597
1656759991000,100cyclictest0-21swapper/707:27:457
16567559910099,1cyclictest553-21snmpd12:31:476
16567559910099,1cyclictest553-21snmpd08:05:066
16567559910099,1cyclictest553-21snmpd08:00:236
16567559910099,1cyclictest553-21snmpd07:52:496
16567559910099,1cyclictest1936257-21kworker/6:212:25:136
16567559910099,1cyclictest1893178-21cat11:45:146
16567559910099,1cyclictest1847139-21kworker/6:112:10:006
16567559910099,1cyclictest1847139-21kworker/6:111:25:476
16567559910099,1cyclictest1847139-21kworker/6:111:19:586
16567559910099,1cyclictest1847139-21kworker/6:111:14:116
16567559910099,1cyclictest1752576-21kworker/6:210:55:006
16567559910099,1cyclictest1752576-21kworker/6:210:41:116
16567559910099,1cyclictest1752576-21kworker/6:210:10:496
16567559910099,1cyclictest1752576-21kworker/6:209:51:416
16567559910099,1cyclictest1752576-21kworker/6:209:45:196
16567559910099,1cyclictest1665031-21kworker/6:109:16:166
16567559910097,2cyclictest553-21snmpd12:25:006
165675599100100,0cyclictest1665031-21kworker/6:109:36:486
1656755991000,99cyclictest0-21swapper/612:15:486
1656755991000,100cyclictest0-21swapper/612:00:156
1656755991000,100cyclictest0-21swapper/610:38:566
1656755991000,100cyclictest0-21swapper/610:25:146
1656755991000,100cyclictest0-21swapper/610:09:136
1656755991000,100cyclictest0-21swapper/609:27:066
16567519910099,1cyclictest553-21snmpd12:10:265
16567519910099,1cyclictest553-21snmpd11:14:055
16567519910099,1cyclictest553-21snmpd09:11:495
16567519910099,1cyclictest553-21snmpd09:02:345
16567519910099,1cyclictest553-21snmpd08:40:065
16567519910097,3cyclictest553-21snmpd09:20:415
1656751991000,99cyclictest0-21swapper/511:28:105
1656751991000,99cyclictest0-21swapper/509:49:575
1656751991000,99cyclictest0-21swapper/508:11:445
1656751991000,99cyclictest0-21swapper/507:39:205
1656751991000,100cyclictest0-21swapper/511:40:145
1656751991000,100cyclictest0-21swapper/510:37:385
1656751991000,100cyclictest0-21swapper/509:41:485
1656751991000,100cyclictest0-21swapper/508:30:095
1656751991000,100cyclictest0-21swapper/508:06:185
1656751991000,0cyclictest0-21swapper/508:59:505
16567469910099,1cyclictest553-21snmpd10:00:344
16567469910099,1cyclictest553-21snmpd10:00:334
16567469910099,1cyclictest553-21snmpd09:57:514
16567469910099,1cyclictest553-21snmpd09:20:534
16567469910099,1cyclictest553-21snmpd08:14:504
1656746991000,99cyclictest0-21swapper/410:18:244
1656746991000,100cyclictest0-21swapper/408:55:284
16567429910099,1cyclictest553-21snmpd12:39:303
16567429910099,1cyclictest553-21snmpd11:37:483
16567429910099,1cyclictest553-21snmpd07:43:193
16567429910099,1cyclictest553-21snmpd07:26:013
16567429910099,0cyclictest553-21snmpd11:58:133
16567429910098,2cyclictest553-21snmpd09:26:593
16567429910098,1cyclictest553-21snmpd10:24:343
16567359910099,1cyclictest553-21snmpd12:27:472
16567359910099,1cyclictest553-21snmpd11:29:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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