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2026-06-16 - 21:46

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 100 highest latencies:
System rack1slot6s.osadl.org (updated Tue Jun 16, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2783321500,7sleep32852999cyclictest12:12:353
1454021210,2sleep2281ktimersoftd/210:17:292
285229910013,68cyclictest0-21swapper/009:27:460
189402970,4sleep2281ktimersoftd/209:34:322
2852299954,23cyclictest6309-21ssh10:52:390
2852299944,25cyclictest0-21swapper/010:42:550
2852299934,22cyclictest1005-21ssh12:19:300
28522999316,11cyclictest0-21swapper/009:02:470
2852299926,64cyclictest0-21swapper/010:47:460
2852299924,25cyclictest0-21swapper/010:57:420
28522999217,12cyclictest0-21swapper/011:37:280
28522999216,12cyclictest0-21swapper/010:37:380
2852299916,22cyclictest0-21swapper/011:17:540
2852299915,70cyclictest0-21swapper/011:02:430
28522999121,51cyclictest0-21swapper/008:57:510
28522999117,12cyclictest0-21swapper/009:12:430
28522999117,12cyclictest0-21swapper/009:12:430
2852299909,21cyclictest0-21swapper/012:09:530
2852299906,67cyclictest0-21swapper/008:08:000
2852299905,61cyclictest0-21swapper/010:07:560
2852299904,25cyclictest0-21swapper/012:06:200
2852299904,25cyclictest0-21swapper/010:02:250
2852299904,24cyclictest0-21swapper/011:27:450
2852299904,22cyclictest0-21swapper/010:12:440
2852299903,23cyclictest1104-21ssh09:08:050
28522999019,12cyclictest0-21swapper/012:15:060
28522999014,12cyclictest0-21swapper/009:32:430
2852299897,23cyclictest0-21swapper/011:22:570
2852299894,77cyclictest0-21swapper/012:00:400
2852299894,76cyclictest26718-21grep10:33:030
2852299894,76cyclictest26718-21grep10:33:030
2852299894,62cyclictest0-21swapper/007:32:570
2852299894,25cyclictest0-21swapper/011:47:400
2852299894,25cyclictest0-21swapper/011:35:200
2852299894,25cyclictest0-21swapper/011:14:360
2852299894,25cyclictest0-21swapper/011:14:360
2852299894,25cyclictest0-21swapper/010:24:330
2852299894,24cyclictest0-21swapper/009:55:000
2852299894,24cyclictest0-21swapper/009:55:000
2852299894,22cyclictest0-21swapper/010:30:150
2852299894,22cyclictest0-21swapper/010:30:150
2852299893,25cyclictest0-21swapper/010:02:320
28522998917,12cyclictest0-21swapper/009:42:510
2852299886,65cyclictest0-21swapper/008:53:350
2852299886,24cyclictest0-21swapper/009:41:140
2852299884,23cyclictest0-21swapper/010:21:490
28522998815,12cyclictest0-21swapper/011:42:580
2852299874,25cyclictest0-21swapper/011:55:310
2852299874,25cyclictest0-21swapper/011:55:310
2852299874,25cyclictest0-21swapper/009:24:050
2852299874,24cyclictest0-21swapper/008:21:440
2852299874,23cyclictest0-21swapper/011:12:220
2852299873,25cyclictest0-21swapper/007:28:180
28522998720,11cyclictest0-21swapper/009:17:560
28522998718,12cyclictest0-21swapper/007:42:490
2852299864,73cyclictest0-21swapper/008:02:340
2852299864,23cyclictest0-21swapper/009:49:070
2852299863,76cyclictest19433-21cpuspeed_turbos08:47:470
2852299863,28cyclictest0-21swapper/007:38:060
2852299856,15cyclictest0-21swapper/006:52:360
2852299844,28cyclictest0-21swapper/008:14:000
2852299834,27cyclictest0-21swapper/007:07:550
2852299834,27cyclictest0-21swapper/007:07:550
28522998319,12cyclictest0-21swapper/006:57:510
2852299825,60cyclictest0-21swapper/008:33:010
2852299814,26cyclictest0-21swapper/007:22:360
2852299814,21cyclictest0-21swapper/008:22:560
2852299804,29cyclictest0-21swapper/007:03:080
28522998025,47cyclictest1227-21runrttasks07:48:060
28522998025,47cyclictest1227-21runrttasks07:48:060
28522997923,50cyclictest0-21swapper/007:12:590
28522997914,12cyclictest0-21swapper/008:42:450
28522997911,9cyclictest107550irq/46-eth008:31:460
28522997911,9cyclictest107550irq/46-eth008:31:460
28522997816,13cyclictest0-21swapper/007:27:360
2852299774,24cyclictest0-21swapper/008:02:460
2852299769,8cyclictest107550irq/46-eth007:53:020
2852299754,12cyclictest0-21swapper/006:52:530
28522997520,8cyclictest15915-21timerwakeupswit08:38:040
219499690,5rtkit-daemon2193-21rtkit-daemon08:13:082
263842640,4sleep126406-21wc10:33:011
263842640,4sleep126406-21wc10:33:011
28528996342,13cyclictest0-21swapper/211:12:582
28528996342,13cyclictest0-21swapper/211:12:582
28528996246,10cyclictest0-21swapper/211:40:492
28528996141,13cyclictest0-21swapper/209:52:492
28528996141,13cyclictest0-21swapper/209:52:492
2852899613,37cyclictest0-21swapper/209:26:352
2852599614,51cyclictest0-21swapper/109:48:061
28528996045,10cyclictest0-21swapper/211:11:062
28528996044,11cyclictest0-21swapper/211:06:522
2852599605,14cyclictest0-21swapper/110:03:581
201152603,13sleep20-21swapper/209:37:432
2852999595,46cyclictest0-21swapper/309:32:473
28529995941,12cyclictest0-21swapper/312:07:503
28529995941,12cyclictest0-21swapper/309:02:523
28529995941,12cyclictest0-21swapper/308:57:553
2852999594,48cyclictest0-21swapper/310:47:563
2852999593,50cyclictest0-21swapper/311:12:523
2852999593,50cyclictest0-21swapper/311:12:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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