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2026-06-15 - 09:04

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 Mon Jun 15, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991050,6rtkit-daemon0-21swapper/021:47:000
2194991050,6rtkit-daemon0-21swapper/021:47:000
2594599974,40cyclictest0-21swapper/022:21:420
2594599964,35cyclictest18547-21grep00:04:050
2594599954,39cyclictest0-21swapper/021:09:290
2594599952,36cyclictest0-21swapper/022:08:570
2594599944,41cyclictest0-21swapper/023:59:090
25945999422,13cyclictest0-21swapper/023:54:140
2594599935,36cyclictest0-21swapper/023:24:040
2594599934,26cyclictest0-21swapper/022:34:200
25945999330,13cyclictest0-21swapper/023:44:250
2594599924,39cyclictest0-21swapper/022:58:050
2594599915,39cyclictest0-21swapper/022:24:130
2594599915,39cyclictest0-21swapper/022:24:130
2594599914,27cyclictest0-21swapper/023:09:180
2594599905,35cyclictest0-21swapper/023:03:510
2594599904,38cyclictest0-21swapper/023:51:400
2594599904,38cyclictest0-21swapper/023:51:400
2594599904,36cyclictest21469-21yum-updatesd-he22:33:030
2594599904,36cyclictest0-21swapper/021:19:190
25945999030,11cyclictest564-21gltestperf22:49:130
102222900,7sleep00-21swapper/021:28:520
25945998934,11cyclictest9087-21cut19:24:190
2594599886,38cyclictest0-21swapper/021:34:300
2594599885,37cyclictest0-21swapper/000:14:090
2594599884,39cyclictest0-21swapper/022:03:540
2594599875,36cyclictest0-21swapper/021:03:570
2594599874,42cyclictest814-21ssh21:14:140
2594599874,26cyclictest0-21swapper/023:14:020
134092860,4sleep3361ktimersoftd/322:19:223
219499850,30rtkit-daemon24179-21rm20:59:390
25950998427,27cyclictest0-21swapper/122:24:321
25950998427,27cyclictest0-21swapper/122:24:321
25950998342,33cyclictest32027-21sshd23:34:251
25950998325,51cyclictest0-21swapper/121:34:211
25950998235,38cyclictest18194-21munin-node20:49:311
25950998234,26cyclictest26063-21runrttasks23:27:001
25950998232,42cyclictest0-21swapper/121:29:321
2594599824,28cyclictest0-21swapper/019:43:590
25945998231,13cyclictest0-21swapper/023:34:240
25945998228,14cyclictest0-21swapper/000:09:130
219499820,8rtkit-daemon0-21swapper/223:19:110
219499820,27rtkit-daemon4226-21gltestperf19:14:210
219499820,26rtkit-daemon23521-21if_eth019:54:190
25950998129,25cyclictest25035-21kworker/1:000:14:231
2594599815,27cyclictest0-21swapper/022:39:560
219499810,28rtkit-daemon25721-21perl19:59:190
219499810,27rtkit-daemon9527-21aten_r1power_vo20:34:100
219499810,27rtkit-daemon8918-21munin-node20:15:410
25950998034,39cyclictest30769-21munin-node21:09:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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