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2026-04-27 - 08:52

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 Mon Apr 27, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25562991003,11cyclictest18302-21diskmemload20:23:310
2485991000,5rtkit-daemon0-21swapper/319:14:592
2556299955,66cyclictest0-21swapper/018:58:410
2556299954,73cyclictest0-21swapper/021:30:350
2556299954,70cyclictest0-21swapper/022:31:080
2556299944,67cyclictest0-21swapper/019:57:480
2556299943,70cyclictest0-21swapper/019:47:310
2556299934,71cyclictest0-21swapper/022:26:110
25562999321,53cyclictest0-21swapper/022:02:310
2556299924,65cyclictest0-21swapper/021:41:070
2556299914,69cyclictest0-21swapper/019:18:290
2556299914,64cyclictest0-21swapper/021:50:030
2556299905,13cyclictest0-21swapper/020:18:380
2556299904,67cyclictest0-21swapper/021:09:030
2556299904,66cyclictest0-21swapper/021:18:320
2556299904,13cyclictest0-21swapper/019:40:080
25562999016,51cyclictest0-21swapper/021:44:040
25562999014,9cyclictest0-21swapper/020:54:420
25562999014,9cyclictest0-21swapper/020:54:420
25562999010,64cyclictest0-21swapper/021:03:360
2556299895,63cyclictest0-21swapper/019:15:080
2556299894,68cyclictest0-21swapper/017:13:350
2556299894,65cyclictest0-21swapper/020:08:280
2556299894,62cyclictest0-21swapper/017:53:330
2556299892,8cyclictest121850irq/46-eth020:28:280
2556299884,69cyclictest0-21swapper/020:01:410
2556299884,68cyclictest0-21swapper/019:50:310
2556299884,65cyclictest0-21swapper/020:34:150
2556299884,63cyclictest0-21swapper/019:30:160
2556299884,16cyclictest0-21swapper/020:44:280
2556299883,20cyclictest0-21swapper/022:06:240
2556299874,67cyclictest0-21swapper/020:14:040
2556299874,67cyclictest0-21swapper/020:14:040
2556299874,66cyclictest0-21swapper/018:53:440
2556299874,66cyclictest0-21swapper/018:53:440
2556299874,61cyclictest0-21swapper/021:26:100
2556299874,60cyclictest0-21swapper/021:53:220
2556299874,60cyclictest0-21swapper/020:59:220
2556299874,58cyclictest0-21swapper/022:08:150
2556299874,13cyclictest0-21swapper/022:22:310
2556299874,13cyclictest0-21swapper/019:03:410
2556299873,66cyclictest0-21swapper/022:13:280
2556299873,21cyclictest0-21swapper/019:25:370
25562998716,49cyclictest0-21swapper/019:34:220
25562998716,49cyclictest0-21swapper/019:34:220
2556299864,67cyclictest0-21swapper/021:16:440
2556299864,67cyclictest0-21swapper/020:42:060
2556299864,65cyclictest0-21swapper/021:33:200
2556299864,65cyclictest0-21swapper/021:33:200
2556299854,69cyclictest0-21swapper/017:18:410
2556299854,59cyclictest0-21swapper/019:09:530
2556299844,62cyclictest0-21swapper/020:03:500
2556299843,63cyclictest0-21swapper/017:43:490
2556299834,66cyclictest0-21swapper/020:51:030
2556299832,17cyclictest0-21swapper/018:28:540
2556299823,21cyclictest14977-21munin-node17:48:580
25562998210,12cyclictest0-21swapper/017:28:430
25562998210,12cyclictest0-21swapper/017:28:430
248599820,6rtkit-daemon0-21swapper/220:32:412
2556299814,69cyclictest0-21swapper/018:44:190
2556299813,20cyclictest0-21swapper/018:00:180
2556299804,57cyclictest0-21swapper/018:08:520
2556299794,68cyclictest0-21swapper/017:03:460
2556299793,10cyclictest1419-21runrttasks18:48:440
2556299784,13cyclictest0-21swapper/018:38:190
2556299783,67cyclictest0-21swapper/017:38:470
2556999774,65cyclictest0-21swapper/219:48:372
2556299774,13cyclictest0-21swapper/018:18:330
2556299774,11cyclictest25563-21awk17:03:230
25562997713,54cyclictest0-21swapper/018:03:320
2556299764,64cyclictest0-21swapper/017:08:340
25562997625,45cyclictest660-21find18:23:500
25562997616,46cyclictest0-21swapper/018:13:500
25562997616,46cyclictest0-21swapper/018:13:500
248599760,6rtkit-daemon0-21swapper/220:34:032
66952756,7sleep20-21swapper/221:55:312
2556299745,12cyclictest0-21swapper/017:23:500
2556299744,64cyclictest0-21swapper/017:33:350
2556299744,64cyclictest0-21swapper/017:33:350
25562997319,46cyclictest1419-21runrttasks18:39:370
2556999724,60cyclictest0-21swapper/221:18:282
2556999724,60cyclictest0-21swapper/219:23:362
2556999724,59cyclictest0-21swapper/220:58:252
248599710,4rtkit-daemon0-21swapper/220:35:333
248599710,3rtkit-daemon0-21swapper/122:00:451
2556999704,58cyclictest0-21swapper/221:03:472
25570996915,28cyclictest12532-21gltestperf20:28:343
2556999684,56cyclictest0-21swapper/219:33:472
2556999684,56cyclictest0-21swapper/219:33:472
25569996830,20cyclictest29081-21aten_r1power_en19:18:292
2556999674,54cyclictest0-21swapper/220:08:322
2556799673,40cyclictest0-21swapper/120:16:441
2556799673,40cyclictest0-21swapper/120:16:441
248599670,5rtkit-daemon11346-21yum-updatesd-he18:48:453
2557099665,53cyclictest0-21swapper/320:13:323
2557099665,53cyclictest0-21swapper/320:13:323
248599660,6rtkit-daemon14971-21yum-updatesd-he17:48:403
248599660,6rtkit-daemon0-21swapper/218:28:533
248599660,5rtkit-daemon1419-21runrttasks19:28:213
2556999654,54cyclictest0-21swapper/219:28:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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