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2026-06-07 - 09:33

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 Sun Jun 07, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22573998518,59cyclictest0-21swapper/323:11:343
219499850,5rtkit-daemon2193-21rtkit-daemon00:12:242
219499850,5rtkit-daemon2193-21rtkit-daemon00:12:242
22573998026,46cyclictest32150-21grep23:46:533
22573997926,32cyclictest0-21swapper/321:03:593
219499790,4rtkit-daemon2193-21rtkit-daemon19:20:130
22573997833,27cyclictest22216-21cpuspeed_turbos00:21:343
219499780,4rtkit-daemon2193-21rtkit-daemon21:27:080
219499780,4rtkit-daemon2193-21rtkit-daemon21:27:080
22573997634,15cyclictest16429-21needreboot00:11:463
22573997634,15cyclictest16429-21needreboot00:11:463
22573997628,40cyclictest30483-21smartctl21:21:493
22573997618,51cyclictest0-21swapper/300:17:163
22573997519,41cyclictest15312-21diskmemload22:55:173
22573997519,41cyclictest15312-21diskmemload22:55:173
22573997424,42cyclictest29627-21df22:56:383
22573997424,42cyclictest29627-21df22:56:383
22573997423,30cyclictest25896-21ssh22:01:573
22573997420,47cyclictest0-21swapper/321:07:493
22573997326,32cyclictest9341-21users21:36:593
22573997321,33cyclictest0-21swapper/300:26:323
22573997313,53cyclictest0-21swapper/321:51:493
22573997230,24cyclictest4856-21cut21:31:453
22573997223,42cyclictest0-21swapper/300:01:553
22573997221,29cyclictest0-21swapper/323:06:513
22573997221,27cyclictest1124-21snmpd22:21:593
22573997216,37cyclictest30421-21ssh22:09:563
22573997216,37cyclictest30421-21ssh22:09:563
219499720,5rtkit-daemon2193-21rtkit-daemon19:06:440
22573997129,35cyclictest22562-21head22:46:353
22573997129,33cyclictest30865-21hwlatdetect19:16:523
22573997127,36cyclictest3331-21ssh21:29:353
22573997127,36cyclictest3331-21ssh21:29:353
22573997126,39cyclictest24613-21ssh23:36:403
22573997120,43cyclictest1-21systemd23:56:543
22573997120,43cyclictest0-21swapper/320:46:513
22573997120,30cyclictest31923-21perl22:11:453
22573997119,46cyclictest0-21swapper/323:02:543
22573997118,47cyclictest12334-21ssh00:06:363
22573997118,45cyclictest0-21swapper/320:51:493
22573997118,45cyclictest0-21swapper/320:51:493
22573997115,36cyclictest0-21swapper/322:31:563
2257099718,56cyclictest0-21swapper/022:56:580
2257099718,56cyclictest0-21swapper/022:56:580
22573997025,38cyclictest14334-21diskstats23:21:393
22573997023,40cyclictest0-21swapper/322:36:433
22573997023,31cyclictest2861-21grep22:16:433
22573997021,42cyclictest0-21swapper/321:17:263
22573997020,33cyclictest0-21swapper/322:01:203
22573997019,44cyclictest0-21swapper/319:06:553
22573997016,34cyclictest0-21swapper/323:51:523
22573996926,36cyclictest9026-21taskset19:37:153
22573996916,46cyclictest0-21swapper/322:43:263
22573996916,31cyclictest0-21swapper/321:46:393
22573996914,47cyclictest0-21swapper/321:11:373
22573996829,32cyclictest21302-21gltestperf23:31:423
22573996829,32cyclictest21302-21gltestperf23:31:423
22573996821,42cyclictest0-21swapper/323:18:563
22573996819,42cyclictest15312-21diskmemload23:27:203
22573996818,43cyclictest0-21swapper/323:45:003
2257299684,48cyclictest0-21swapper/200:09:162
22573996725,26cyclictest24570-21users19:02:063
22573996721,39cyclictest1084-21lldpd22:30:343
22573996619,40cyclictest0-21swapper/319:27:033
22573996619,40cyclictest0-21swapper/319:27:033
22573996618,31cyclictest0-21swapper/319:26:323
22573996617,42cyclictest0-21swapper/320:36:583
22573996617,31cyclictest0-21swapper/321:44:403
22573996617,29cyclictest0-21swapper/320:21:303
22573996616,42cyclictest0-21swapper/320:32:213
2257099665,53cyclictest0-21swapper/022:21:410
22573996519,38cyclictest0-21swapper/319:41:423
2257099645,52cyclictest0-21swapper/023:36:400
22570996424,33cyclictest19989-21http_loadtime21:06:490
219499640,6rtkit-daemon15163-21perl19:51:493
22573996320,36cyclictest29245-21taskset20:21:453
22573996312,45cyclictest0-21swapper/320:26:443
219499630,7rtkit-daemon0-21swapper/121:33:450
22573996231,25cyclictest28976-21sendmail_mailqu19:12:013
22573996219,25cyclictest1080-21lldpd20:01:043
2257099624,49cyclictest19496-21ls00:16:400
219499620,7rtkit-daemon0-21swapper/123:19:260
219499620,7rtkit-daemon0-21swapper/123:04:270
219499620,7rtkit-daemon0-21swapper/122:45:350
219499620,7rtkit-daemon0-21swapper/122:12:290
219499620,7rtkit-daemon0-21swapper/120:46:550
219499620,7rtkit-daemon0-21swapper/100:04:540
219499620,6rtkit-daemon25744-21vmstat20:12:043
219499620,5rtkit-daemon7191-21strings20:41:553
22573996114,30cyclictest0-21swapper/319:46:503
2257299614,37cyclictest0-21swapper/221:57:022
219499610,7rtkit-daemon0-21swapper/123:59:550
219499610,7rtkit-daemon0-21swapper/119:27:430
219499610,7rtkit-daemon0-21swapper/119:27:430
219499610,11rtkit-daemon2193-21rtkit-daemon23:52:101
2257299604,39cyclictest0-21swapper/221:24:302
2257299604,38cyclictest0-21swapper/220:37:042
22570996041,12cyclictest0-21swapper/000:06:310
2257099604,47cyclictest0-21swapper/021:21:420
219499600,7rtkit-daemon0-21swapper/122:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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