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2026-05-18 - 08:17

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 Mon May 18, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
537199280,27cyclictest0-21swapper/123:52:251
537199270,26cyclictest31819-21diskmemload00:01:371
537799260,25cyclictest0-21swapper/322:23:163
537699260,25cyclictest31819-21diskmemload21:57:532
5371992623,3cyclictest0-21swapper/121:47:431
537199260,25cyclictest29615-21ssh22:05:391
537199260,25cyclictest2290-21rm22:38:471
537199260,25cyclictest0-21swapper/121:15:201
537799252,22cyclictest24929-21sh22:30:253
537799250,24cyclictest31819-21diskmemload22:29:563
537799250,24cyclictest31819-21diskmemload22:07:193
537799250,24cyclictest0-21swapper/321:17:193
537699250,24cyclictest8785-21perf00:40:002
537699250,24cyclictest31819-21diskmemload23:39:332
537699250,24cyclictest23682-21ssh00:24:202
537699250,24cyclictest0-21swapper/223:13:142
537699250,24cyclictest0-21swapper/222:37:462
537699250,24cyclictest0-21swapper/222:29:242
537699250,0cyclictest0-21swapper/220:02:252
5371992523,2cyclictest0-21swapper/100:28:191
5371992522,2cyclictest0-21swapper/100:07:451
5371992521,3cyclictest20338-21ssh00:22:081
537199250,25cyclictest0-21swapper/100:35:271
537199250,24cyclictest31819-21diskmemload22:41:471
537199250,24cyclictest15769-21ssh23:48:291
537199250,24cyclictest0-21swapper/121:58:511
537199250,24cyclictest0-21swapper/121:23:111
537199250,1cyclictest15334-21sh22:51:021
537199250,0cyclictest31819-21diskmemload22:32:181
536499250,24cyclictest2135-21cron20:10:010
537799241,23cyclictest7410-21apt-get20:20:023
537799240,23cyclictest5853-21ssh23:11:363
537799240,23cyclictest31819-21diskmemload22:03:103
537799240,23cyclictest31819-21diskmemload00:03:163
537799240,23cyclictest0-21swapper/323:22:013
537799240,23cyclictest0-21swapper/321:26:493
537799240,0cyclictest0-21swapper/321:12:133
5376992420,4cyclictest0-21swapper/221:41:442
537699240,24cyclictest4974-1kworker/u9:122:16:422
537699240,23cyclictest12463-21ssh00:14:172
537699240,23cyclictest0-21swapper/200:17:062
537699240,1cyclictest0-21swapper/221:33:212
5371992421,3cyclictest0-21swapper/122:12:301
537199240,24cyclictest0-21swapper/123:16:581
537199240,24cyclictest0-21swapper/122:21:501
537199240,23cyclictest17395-21ssh21:26:201
537199240,20cyclictest19970-21kworker/u8:223:32:561
537199240,1cyclictest11987-21ssh22:18:141
537199240,0cyclictest25298-21interrupts23:57:291
537199240,0cyclictest0-21swapper/123:43:321
537199240,0cyclictest0-21swapper/123:00:351
537199240,0cyclictest0-21swapper/122:49:311
537199240,0cyclictest0-21swapper/122:03:451
537199240,0cyclictest0-21swapper/121:50:591
537199240,0cyclictest0-21swapper/100:18:381
5364992424,0cyclictest0-21swapper/000:26:150
5364992423,1cyclictest31819-21diskmemload22:32:170
536499240,24cyclictest0-21swapper/022:00:080
536499240,24cyclictest0-21swapper/021:37:430
536499240,23cyclictest62550irq/127-eno121:58:270
536499240,1cyclictest31819-21diskmemload23:26:050
536499240,0cyclictest0-21swapper/023:05:110
536499240,0cyclictest0-21swapper/023:01:380
5377992323,0cyclictest31819-21diskmemload23:16:543
5377992323,0cyclictest31819-21diskmemload21:33:243
5377992323,0cyclictest0-21swapper/323:54:343
5377992323,0cyclictest0-21swapper/323:48:293
5377992323,0cyclictest0-21swapper/323:41:353
5377992323,0cyclictest0-21swapper/322:45:153
5377992323,0cyclictest0-21swapper/321:55:213
5377992323,0cyclictest0-21swapper/321:52:243
5377992321,1cyclictest31819-21diskmemload23:27:323
5377992321,1cyclictest0-21swapper/322:50:503
5377992321,1cyclictest0-21swapper/321:35:333
537799231,1cyclictest26708-21sh23:58:053
537799230,23cyclictest0-21swapper/323:00:013
537799230,22cyclictest4224-21ssh00:36:193
537799230,22cyclictest31819-21diskmemload23:37:343
537799230,22cyclictest31819-21diskmemload22:55:463
537799230,22cyclictest31819-21diskmemload21:45:083
537799230,22cyclictest27008-21grep21:00:013
537799230,22cyclictest1405-21sh21:40:553
537799230,1cyclictest0-21swapper/322:16:473
537799230,0cyclictest31819-21diskmemload22:13:143
537799230,0cyclictest17368-21ssh00:18:173
537799230,0cyclictest0-21swapper/300:09:003
5376992323,0cyclictest0-21swapper/223:05:302
5376992322,0cyclictest31819-21diskmemload21:16:082
5376992322,0cyclictest0-21swapper/219:52:242
5376992320,0cyclictest0-21swapper/222:20:292
537699231,22cyclictest418-21ssh21:11:162
537699230,23cyclictest0-21swapper/223:28:362
537699230,23cyclictest0-21swapper/222:46:322
537699230,23cyclictest0-21swapper/200:03:572
537699230,22cyclictest7423-21cron20:20:002
537699230,22cyclictest31819-21diskmemload23:59:352
537699230,22cyclictest28250-21ssh21:35:552
537699230,22cyclictest27803-21apt-get19:57:232
537699230,22cyclictest19087-21ssh23:52:252
537699230,22cyclictest0-21swapper/223:46:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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