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2026-06-19 - 03:13

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 Fri Jun 19, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219499980,5rtkit-daemon2193-21rtkit-daemon00:07:323
219499810,5rtkit-daemon2193-21rtkit-daemon22:19:362
219499810,5rtkit-daemon2193-21rtkit-daemon22:19:362
3260399744,61cyclictest0-21swapper/023:32:390
3261099722,61cyclictest0-21swapper/223:45:282
3261099718,56cyclictest0-21swapper/221:30:362
32603997111,52cyclictest0-21swapper/023:40:330
32603997111,52cyclictest0-21swapper/023:40:330
3260399704,16cyclictest0-21swapper/023:14:120
219499700,5rtkit-daemon2193-21rtkit-daemon19:14:063
219499700,4rtkit-daemon2193-21rtkit-daemon21:39:452
219499700,4rtkit-daemon2193-21rtkit-daemon21:39:452
3261099698,53cyclictest0-21swapper/200:01:572
3260399694,56cyclictest0-21swapper/021:00:410
32603996913,32cyclictest16197-21ssh22:10:280
3261099688,52cyclictest31364-21cat23:20:312
3261099687,53cyclictest0-21swapper/220:55:282
3261099687,53cyclictest0-21swapper/220:55:282
3261099683,58cyclictest0-21swapper/222:55:402
3260699685,55cyclictest0-21swapper/123:18:051
3260399689,51cyclictest0-21swapper/022:45:430
3261099674,55cyclictest0-21swapper/222:35:442
3261099664,54cyclictest0-21swapper/222:29:182
3261099664,53cyclictest0-21swapper/223:00:292
3261099664,53cyclictest0-21swapper/223:00:292
3260699664,54cyclictest0-21swapper/123:00:301
3260699664,54cyclictest0-21swapper/123:00:301
3260699664,54cyclictest0-21swapper/121:45:331
3260399667,50cyclictest0-21swapper/021:40:200
3260399667,42cyclictest0-21swapper/021:33:390
3260399667,37cyclictest0-21swapper/022:57:210
32603996615,44cyclictest0-21swapper/022:00:350
32603996614,43cyclictest22041-21munin-node22:20:300
32603996614,43cyclictest22041-21munin-node22:20:300
32603996614,15cyclictest0-21swapper/019:55:320
3261199657,51cyclictest32093-21crond21:00:113
3261199657,51cyclictest32093-21crond21:00:113
3261099658,51cyclictest0-21swapper/223:33:552
3261099654,53cyclictest0-21swapper/222:02:552
3261099654,52cyclictest0-21swapper/221:29:212
32610996514,34cyclictest0-21swapper/222:05:192
32610996512,46cyclictest1183-21taskset19:58:292
3260399656,53cyclictest0-21swapper/000:10:210
3260399654,53cyclictest0-21swapper/023:45:270
32603996515,42cyclictest303341ssh23:20:190
32603996510,48cyclictest0-21swapper/020:05:280
219499650,7rtkit-daemon0-21swapper/320:04:412
219499650,6rtkit-daemon2193-21rtkit-daemon22:45:283
3261099645,51cyclictest0-21swapper/223:50:212
3261099645,51cyclictest0-21swapper/223:05:232
3261099644,53cyclictest0-21swapper/222:12:172
3261099644,52cyclictest0-21swapper/200:18:262
32610996414,43cyclictest28978-21kworker/2:121:00:232
32610996412,30cyclictest23417-21ssh23:55:402
3260699644,52cyclictest0-21swapper/122:40:181
3260699644,52cyclictest0-21swapper/122:30:381
3260699644,52cyclictest0-21swapper/100:15:531
3260399645,52cyclictest0-21swapper/021:51:420
3260399644,53cyclictest0-21swapper/023:15:290
3260399644,52cyclictest0-21swapper/023:05:290
3260399644,38cyclictest107550irq/46-eth023:25:230
32603996414,27cyclictest23191-21munin-node20:45:350
32603996411,44cyclictest1761-21Xorg22:30:060
219499640,6rtkit-daemon0-21swapper/323:37:262
3261099634,51cyclictest0-21swapper/221:45:262
3261099634,51cyclictest0-21swapper/221:20:412
3261099632,55cyclictest0-21swapper/222:53:272
32610996312,41cyclictest1227-21runrttasks22:33:082
3260699634,53cyclictest0-21swapper/121:30:341
3260699634,51cyclictest0-21swapper/123:40:051
3260699633,51cyclictest2535-21fschecks_count21:50:271
32603996317,38cyclictest17016-21crond19:25:140
32603996316,40cyclictest4585-21grep21:05:330
32603996313,41cyclictest28441-21taskset00:05:170
219499630,8rtkit-daemon0-21swapper/320:24:112
219499630,7rtkit-daemon0-21swapper/321:50:302
219499630,7rtkit-daemon0-21swapper/320:45:472
3261099629,47cyclictest0-21swapper/200:12:512
3261099628,47cyclictest1124-21snmpd21:43:362
3261099624,51cyclictest0-21swapper/200:05:542
32610996232,13cyclictest0-21swapper/220:54:282
3261099623,52cyclictest0-21swapper/222:20:342
3261099623,52cyclictest0-21swapper/222:20:342
32610996226,15cyclictest107550irq/46-eth018:55:162
32610996226,15cyclictest107550irq/46-eth018:55:162
32610996214,30cyclictest4865-21ssh22:40:402
32610996213,32cyclictest1124-21snmpd22:45:272
3260699624,50cyclictest0-21swapper/123:28:211
3260699624,50cyclictest0-21swapper/122:10:491
3260699624,50cyclictest0-21swapper/100:00:301
3260399628,38cyclictest0-21swapper/023:55:190
3260399626,49cyclictest0-21swapper/019:50:250
3260399625,50cyclictest0-21swapper/023:01:070
3260399625,50cyclictest0-21swapper/023:01:070
32603996218,35cyclictest18910-21ssh23:50:220
32603996217,20cyclictest0-21swapper/019:30:370
32603996213,31cyclictest30229-21ssh20:55:400
32603996213,31cyclictest30229-21ssh20:55:400
32603996212,44cyclictest0-21swapper/021:57:360
32603996210,45cyclictest0-21swapper/018:52:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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