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2026-05-14 - 18:54

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 Thu May 14, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3313992519,5cyclictest15287-21sh12:16:112
3309992523,1cyclictest0-21swapper/109:11:281
3309992522,2cyclictest11566-21pmu-power10:47:121
330899250,24cyclictest19614-21ssh10:54:450
330899250,1cyclictest29881-21diskmemload11:08:310
330899250,1cyclictest18864-21sh12:18:500
3318992423,1cyclictest29881-21diskmemload11:58:153
3318992423,1cyclictest22087-21ssh11:25:293
331899240,2cyclictest30046-21rm09:37:563
331899240,24cyclictest29881-21diskmemload11:32:563
331899240,24cyclictest0-21swapper/310:52:163
331899240,23cyclictest5157-21ssh11:38:343
331899240,1cyclictest29881-21diskmemload10:06:113
3313992422,1cyclictest0-21swapper/211:41:372
3313992422,1cyclictest0-21swapper/210:05:012
331399240,23cyclictest29881-21diskmemload11:24:222
331399240,23cyclictest0-21swapper/209:47:052
331399240,1cyclictest13367-21ssh10:20:442
331399240,1cyclictest0-21swapper/211:07:062
3309992424,0cyclictest0-21swapper/111:58:121
3309992422,1cyclictest313-21systemd-journal07:50:011
3309992422,1cyclictest0-21swapper/111:02:011
330999240,23cyclictest2958-21/usr/sbin/munin10:12:071
330999240,23cyclictest2958-21/usr/sbin/munin10:12:071
330999240,23cyclictest0-21swapper/112:38:471
330999240,23cyclictest0-21swapper/110:25:481
330999240,23cyclictest0-21swapper/109:22:131
330999240,23cyclictest0-21swapper/109:22:131
330999240,0cyclictest0-21swapper/111:25:291
330999240,0cyclictest0-21swapper/109:50:001
330999240,0cyclictest0-21swapper/109:41:091
3308992423,1cyclictest29881-21diskmemload11:18:220
3308992423,1cyclictest0-21swapper/011:25:030
3308992420,3cyclictest0-21swapper/012:12:140
330899241,22cyclictest10639-21basename08:30:010
330899240,24cyclictest0-21swapper/009:36:240
330899240,23cyclictest8683-21apt-get10:17:070
330899240,23cyclictest0-21swapper/010:57:070
330899240,0cyclictest29881-21diskmemload10:09:240
330899240,0cyclictest29881-21diskmemload09:19:190
330899240,0cyclictest0-21swapper/010:37:310
3318992323,0cyclictest29881-21diskmemload12:35:553
3318992323,0cyclictest29881-21diskmemload12:05:203
3318992323,0cyclictest29881-21diskmemload09:20:503
3318992323,0cyclictest29881-21diskmemload09:20:503
3318992323,0cyclictest0-21swapper/312:30:073
3318992323,0cyclictest0-21swapper/311:42:143
3318992323,0cyclictest0-21swapper/311:22:253
3318992323,0cyclictest0-21swapper/310:32:153
3318992323,0cyclictest0-21swapper/310:10:053
3318992323,0cyclictest0-21swapper/310:10:053
3318992323,0cyclictest0-21swapper/309:41:253
3318992322,1cyclictest29881-21diskmemload12:22:123
3318992321,1cyclictest725-21sh12:02:203
331899230,23cyclictest29881-21diskmemload09:49:473
331899230,23cyclictest0-21swapper/310:48:513
331899230,23cyclictest0-21swapper/309:50:213
331899230,22cyclictest22491-21sh10:00:073
331899230,22cyclictest21657-21sh09:31:373
331899230,22cyclictest18853-21ssh11:51:203
331899230,22cyclictest14152-21ssh10:21:533
331899230,0cyclictest29881-21diskmemload12:26:373
331899230,0cyclictest29881-21diskmemload11:01:163
331899230,0cyclictest29881-21diskmemload09:16:313
331899230,0cyclictest0-21swapper/310:43:263
331899230,0cyclictest0-21swapper/310:26:503
3313992323,0cyclictest0-21swapper/212:25:032
3313992323,0cyclictest0-21swapper/212:11:272
3313992323,0cyclictest0-21swapper/211:49:042
3313992323,0cyclictest0-21swapper/211:16:252
3313992323,0cyclictest0-21swapper/209:40:112
3313992321,1cyclictest0-21swapper/212:36:302
3313992321,1cyclictest0-21swapper/210:15:062
3313992321,1cyclictest0-21swapper/207:50:012
3313992320,2cyclictest6860-21cron10:15:012
3313992320,2cyclictest6860-21cron10:15:012
3313992320,2cyclictest30102-21rm09:10:012
331399230,2cyclictest25024-21ssh10:59:202
331399230,23cyclictest0-21swapper/211:12:442
331399230,22cyclictest7513-21ssh12:08:452
331399230,22cyclictest5833-21idleruntime-cro08:20:002
331399230,22cyclictest29881-21diskmemload09:50:152
331399230,22cyclictest24330-21ssh10:30:202
331399230,22cyclictest0-21swapper/210:39:402
331399230,22cyclictest0-21swapper/209:55:212
331399230,1cyclictest0-21swapper/212:32:082
331399230,0cyclictest0-21swapper/212:24:332
331399230,0cyclictest0-21swapper/212:01:222
331399230,0cyclictest0-21swapper/210:27:582
331399230,0cyclictest0-21swapper/209:23:052
331399230,0cyclictest0-21swapper/209:23:052
3309992323,0cyclictest0-21swapper/111:15:431
3309992323,0cyclictest0-21swapper/109:38:251
3309992322,0cyclictest0-21swapper/112:10:211
3309992322,0cyclictest0-21swapper/112:05:141
3309992321,1cyclictest0-21swapper/110:40:201
3309992321,1cyclictest0-21swapper/109:32:131
3309992320,2cyclictest24419-21ssh10:30:281
3309992320,1cyclictest0-21swapper/110:04:201
330999230,23cyclictest11720-21ssh11:44:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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