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2026-04-04 - 15:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot6s.osadl.org (updated Sat Apr 04, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991090,5rtkit-daemon2484-21rtkit-daemon09:48:190
248599950,4rtkit-daemon2484-21rtkit-daemon08:28:080
248599950,4rtkit-daemon2484-21rtkit-daemon08:28:080
291532890,3sleep1201ktimersoftd/108:21:151
248599840,4rtkit-daemon2484-21rtkit-daemon10:12:412
248599830,5rtkit-daemon2484-21rtkit-daemon10:32:553
248599830,5rtkit-daemon2484-21rtkit-daemon09:47:123
248599830,5rtkit-daemon2484-21rtkit-daemon09:18:513
248599830,5rtkit-daemon2484-21rtkit-daemon08:35:373
248599830,5rtkit-daemon2484-21rtkit-daemon06:48:043
248599830,5rtkit-daemon2484-21rtkit-daemon05:50:213
248599830,4rtkit-daemon2484-21rtkit-daemon10:17:183
248599830,4rtkit-daemon2484-21rtkit-daemon06:40:493
248599820,6rtkit-daemon2484-21rtkit-daemon08:43:523
248599820,6rtkit-daemon2484-21rtkit-daemon07:20:553
248599820,6rtkit-daemon2484-21rtkit-daemon07:10:483
248599820,6rtkit-daemon2484-21rtkit-daemon05:36:223
248599820,5rtkit-daemon2484-21rtkit-daemon09:09:433
248599820,5rtkit-daemon2484-21rtkit-daemon08:50:593
248599820,5rtkit-daemon2484-21rtkit-daemon07:58:013
248599820,5rtkit-daemon2484-21rtkit-daemon07:26:103
248599820,5rtkit-daemon2484-21rtkit-daemon06:32:273
248599820,5rtkit-daemon2484-21rtkit-daemon06:07:513
248599820,4rtkit-daemon2484-21rtkit-daemon09:54:573
248599820,4rtkit-daemon2484-21rtkit-daemon09:29:583
248599820,4rtkit-daemon2484-21rtkit-daemon09:25:433
248599820,4rtkit-daemon2484-21rtkit-daemon08:12:313
248599820,4rtkit-daemon2484-21rtkit-daemon07:15:033
248599820,4rtkit-daemon2484-21rtkit-daemon06:27:353
248599820,4rtkit-daemon2484-21rtkit-daemon06:16:353
248599820,4rtkit-daemon2484-21rtkit-daemon06:11:283
248599820,4rtkit-daemon2484-21rtkit-daemon06:00:213
248599820,4rtkit-daemon2484-21rtkit-daemon05:47:513
248599810,6rtkit-daemon2484-21rtkit-daemon06:56:493
248599810,5rtkit-daemon2484-21rtkit-daemon10:20:413
248599810,5rtkit-daemon2484-21rtkit-daemon09:39:353
248599810,5rtkit-daemon2484-21rtkit-daemon09:06:443
248599810,5rtkit-daemon2484-21rtkit-daemon09:06:443
248599810,5rtkit-daemon2484-21rtkit-daemon09:03:363
248599810,5rtkit-daemon2484-21rtkit-daemon08:45:293
248599810,5rtkit-daemon2484-21rtkit-daemon08:23:233
248599810,5rtkit-daemon2484-21rtkit-daemon08:15:463
248599810,5rtkit-daemon2484-21rtkit-daemon07:51:313
248599810,5rtkit-daemon2484-21rtkit-daemon06:20:503
248599810,5rtkit-daemon2484-21rtkit-daemon06:20:503
248599810,5rtkit-daemon2484-21rtkit-daemon05:55:443
248599810,5rtkit-daemon2484-21rtkit-daemon05:29:523
248599810,5rtkit-daemon2484-21rtkit-daemon05:25:453
248599810,4rtkit-daemon2484-21rtkit-daemon10:49:253
248599810,4rtkit-daemon2484-21rtkit-daemon10:38:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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