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2026-08-16 - 23:34

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 Aug 16, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2110699280,1cyclictest0-21swapper/212:27:182
2110699260,25cyclictest0-21swapper/212:20:542
2110699260,22cyclictest27654-21ssh11:45:372
21107992523,1cyclictest34-21ksoftirqd/312:40:003
21107992523,1cyclictest0-21swapper/310:51:313
2110799250,24cyclictest0-21swapper/311:30:303
21106992520,4cyclictest0-21swapper/212:08:402
2110699250,24cyclictest15266-21diskmemload12:10:332
2110699250,24cyclictest15266-21diskmemload10:32:442
2110699250,21cyclictest15266-21diskmemload12:15:072
2110699250,1cyclictest0-21swapper/210:21:042
21105992524,1cyclictest28791-21ssh10:49:231
2110599250,1cyclictest15266-21diskmemload10:17:531
21104992523,1cyclictest14576-21ssh10:35:070
21104992521,3cyclictest17136-21ssh10:09:540
2110499250,24cyclictest15266-21diskmemload10:51:100
2110499250,24cyclictest0-21swapper/011:11:040
21107992422,1cyclictest3798-21apt-get08:49:533
21107992422,1cyclictest0-21swapper/312:34:333
21107992422,1cyclictest0-21swapper/309:20:013
2110799240,24cyclictest0-21swapper/311:40:463
2110799240,23cyclictest3946-21sendmail07:40:003
2110799240,23cyclictest30389-21apt08:35:013
2110799240,23cyclictest0-21swapper/311:49:593
2110799240,23cyclictest0-21swapper/310:42:533
21106992423,1cyclictest0-21swapper/209:30:002
21106992422,2cyclictest0-21swapper/211:33:082
21106992422,2cyclictest0-21swapper/210:16:562
21106992421,3cyclictest0-21swapper/212:36:382
21106992420,3cyclictest0-21swapper/210:44:352
21106992420,3cyclictest0-21swapper/210:08:302
21106992420,3cyclictest0-21swapper/210:01:082
21106992420,3cyclictest0-21swapper/209:56:272
2110699240,3cyclictest0-21swapper/209:52:322
2110699240,24cyclictest0-21swapper/211:29:232
2110699240,23cyclictest5697-21ssh10:57:032
2110699240,23cyclictest0-21swapper/212:30:182
2110699240,20cyclictest0-21swapper/210:51:462
2110699240,0cyclictest15266-21diskmemload09:12:262
2110699240,0cyclictest0-21swapper/211:20:522
2110599241,22cyclictest4298-21sh12:23:581
2110599241,22cyclictest2820-21head10:25:011
2110599240,23cyclictest15266-21diskmemload10:54:081
2110599240,0cyclictest0-21swapper/109:37:351
21104992424,0cyclictest0-21swapper/011:03:500
21104992424,0cyclictest0-21swapper/009:48:330
21104992423,1cyclictest15266-21diskmemload12:19:510
21104992423,1cyclictest11891-21ssh10:34:050
21104992423,1cyclictest0-21swapper/010:24:120
21104992422,1cyclictest20501-21ssh10:12:080
21104992421,2cyclictest21762-21memory12:09:580
2110499240,23cyclictest18749-21ssh09:13:400
2110499240,23cyclictest15266-21diskmemload09:40:230
2110499240,23cyclictest13784-21sh11:34:440
2110499240,23cyclictest13740-21ssh12:02:280
21107992323,0cyclictest0-21swapper/311:25:573
21107992323,0cyclictest0-21swapper/309:53:123
21107992321,1cyclictest75-21kswapd009:55:023
21107992321,1cyclictest7340-21apt-get08:55:013
21107992321,1cyclictest2786-21perf08:45:013
21107992321,1cyclictest2668-21munin-run10:25:003
21107992321,1cyclictest0-21swapper/311:10:153
21107992321,1cyclictest0-21swapper/309:36:593
21107992320,2cyclictest14000-21sh10:05:313
2110799230,2cyclictest313-21systemd-journal07:15:013
2110799230,23cyclictest0-21swapper/312:23:043
2110799230,23cyclictest0-21swapper/311:23:333
2110799230,23cyclictest0-21swapper/310:45:583
2110799230,22cyclictest8160-21munin-run10:30:003
2110799230,22cyclictest7953-21sh12:26:133
2110799230,22cyclictest6588-21diskmemload11:55:533
2110799230,22cyclictest16462-21ssh11:35:353
2110799230,22cyclictest0-21swapper/309:10:373
2110799230,1cyclictest0-21swapper/310:32:203
2110799230,0cyclictest15266-21diskmemload11:08:013
2110799230,0cyclictest0-21swapper/310:55:513
21106992323,0cyclictest0-21swapper/211:01:202
21106992323,0cyclictest0-21swapper/209:30:172
21106992320,3cyclictest0-21swapper/211:36:222
21106992320,3cyclictest0-21swapper/211:05:252
21106992320,2cyclictest15266-21diskmemload10:25:302
21106992320,2cyclictest0-21swapper/211:10:062
2110699230,23cyclictest0-21swapper/209:17:152
2110699230,22cyclictest28634-21perf07:25:002
2110699230,22cyclictest26446-21sh11:15:062
2110699230,22cyclictest11590-21mailstats12:00:022
2110699230,22cyclictest0-21swapper/209:24:272
2110699230,0cyclictest0-21swapper/211:55:582
2110699230,0cyclictest0-21swapper/210:36:232
2110699230,0cyclictest0-21swapper/209:40:192
21105992323,0cyclictest0-21swapper/112:12:101
21105992323,0cyclictest0-21swapper/111:42:171
21105992323,0cyclictest0-21swapper/110:22:201
21105992322,1cyclictest22849-21grep08:20:001
21105992322,1cyclictest0-21swapper/109:43:041
21105992321,1cyclictest20208-21sh12:38:051
21105992321,1cyclictest15366-21ssh12:34:001
21105992321,1cyclictest11630-21sensors_fan12:00:021
21105992320,2cyclictest23438-21sh09:17:311
21105992320,2cyclictest21083-21sensors_fan11:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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