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2026-05-24 - 10:45

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot5s.osadl.org (updated Sun May 24, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1729199290,0cyclictest0-21swapper/000:02:540
17291992723,3cyclictest10872-21diskmemload21:45:320
1729199270,23cyclictest22191-21rm22:45:530
1729199270,1cyclictest12353-21basename21:40:000
1730099260,1cyclictest0-21swapper/200:28:302
17291992620,5cyclictest10872-21diskmemload21:17:580
1729199260,21cyclictest26216-21apt-get23:47:550
1729199260,1cyclictest30141-21ssh00:19:100
1729199260,1cyclictest18132-21ssh00:08:050
1729199260,1cyclictest14842-21ssh00:33:530
1730199250,24cyclictest10872-21diskmemload21:37:133
1730199250,1cyclictest0-21swapper/323:42:553
17300992520,4cyclictest0-21swapper/221:22:312
1730099250,24cyclictest0-21swapper/200:34:002
1730099250,1cyclictest0-21swapper/223:28:502
1729599250,24cyclictest0-21swapper/123:09:551
1729599250,24cyclictest0-21swapper/121:47:381
1729599250,0cyclictest0-21swapper/122:47:091
17291992520,4cyclictest30814-21rm21:56:460
17291992520,4cyclictest10872-21diskmemload22:50:450
1729199250,24cyclictest9676-21munin-run00:30:010
1729199250,24cyclictest12146-21ssh21:11:260
1729199250,24cyclictest10872-21diskmemload23:16:500
1729199250,24cyclictest10872-21diskmemload22:11:460
1729199250,24cyclictest10872-21diskmemload00:21:230
1729199250,23cyclictest0-21swapper/021:21:350
1729199250,21cyclictest19661-21ssh23:41:320
1729199250,1cyclictest459-21ssh21:29:190
1729199250,1cyclictest17508-21sh21:44:170
1729199250,1cyclictest10985-21ssh23:04:420
1729199250,1cyclictest10872-21diskmemload23:52:080
1729199250,1cyclictest0-21swapper/022:33:540
17301992424,0cyclictest0-21swapper/321:47:533
1730199240,23cyclictest10872-21diskmemload22:16:033
1730199240,23cyclictest10872-21diskmemload00:38:533
1730199240,23cyclictest10872-21diskmemload00:26:003
1730199240,23cyclictest0-21swapper/322:14:323
1730199240,0cyclictest0-21swapper/323:56:123
17300992423,1cyclictest0-21swapper/200:35:012
17300992422,1cyclictest0-21swapper/223:21:362
17300992422,1cyclictest0-21swapper/222:31:192
17300992422,1cyclictest0-21swapper/222:19:112
17300992421,2cyclictest783-21snmpd23:40:282
17300992420,4cyclictest0-21swapper/221:45:462
1730099240,23cyclictest5671-21apt23:00:002
1730099240,23cyclictest0-21swapper/221:17:142
1730099240,23cyclictest0-21swapper/200:15:592
1730099240,1cyclictest31841-21apt-get23:52:552
1730099240,1cyclictest14974-21diskmemload23:37:512
17295992423,1cyclictest10872-21diskmemload23:47:231
1729599240,2cyclictest31406-21ssh22:25:051
1729599240,24cyclictest0-21swapper/123:24:381
1729599240,23cyclictest14317-21ssh00:05:061
1729599240,23cyclictest10872-21diskmemload00:32:451
1729599240,23cyclictest0-21swapper/123:57:431
1729599240,23cyclictest0-21swapper/122:20:171
17291992422,2cyclictest0-21swapper/021:30:090
1729199242,1cyclictest62550irq/127-eno123:09:340
17291992420,3cyclictest10872-21diskmemload23:25:530
17291992420,3cyclictest0-21swapper/022:38:300
17291992420,3cyclictest0-21swapper/000:36:270
1729199240,24cyclictest0-21swapper/021:54:150
1729199240,23cyclictest0-21swapper/022:40:160
1729199240,21cyclictest10872-21diskmemload22:05:430
1729199240,20cyclictest19913-21ssh22:15:260
1729199240,1cyclictest3468-21ssh23:55:420
1729199240,1cyclictest32359-21ssh22:26:250
1729199240,0cyclictest13035-21ssh23:35:160
1729199240,0cyclictest10872-21diskmemload22:59:520
1729199240,0cyclictest0-21swapper/023:10:300
1729199240,0cyclictest0-21swapper/000:10:470
17301992323,0cyclictest10872-21diskmemload23:14:373
17301992323,0cyclictest0-21swapper/323:23:003
17301992323,0cyclictest0-21swapper/322:35:103
17301992321,1cyclictest0-21swapper/322:55:433
1730199231,21cyclictest3410-21apt-get21:32:543
1730199230,2cyclictest25891-21sh23:47:233
1730199230,23cyclictest0-21swapper/322:50:593
1730199230,22cyclictest24962-21ssh21:51:253
1730199230,22cyclictest24427-21ssh00:13:593
1730199230,22cyclictest0-21swapper/322:32:593
1730199230,22cyclictest0-21swapper/322:02:133
1730199230,1cyclictest0-21swapper/300:15:553
1730199230,0cyclictest10872-21diskmemload21:20:453
1730199230,0cyclictest10872-21diskmemload21:14:493
1730199230,0cyclictest0-21swapper/323:31:483
1730199230,0cyclictest0-21swapper/322:43:083
1730199230,0cyclictest0-21swapper/321:56:193
17300992323,0cyclictest10872-21diskmemload00:09:332
17300992323,0cyclictest0-21swapper/223:19:172
17300992323,0cyclictest0-21swapper/222:23:022
17300992323,0cyclictest0-21swapper/222:13:192
17300992323,0cyclictest0-21swapper/221:43:142
17300992321,1cyclictest0-21swapper/223:55:452
17300992321,1cyclictest0-21swapper/223:11:002
17300992321,1cyclictest0-21swapper/221:58:002
1730099230,2cyclictest28894-21idleruntime-cro20:40:002
1730099230,23cyclictest0-21swapper/223:32:522
1730099230,23cyclictest0-21swapper/221:53:262
1730099230,22cyclictest783-21snmpd21:11:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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