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2026-05-12 - 05:03

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 Tue May 12, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8025992719,4cyclictest1264-21diskmemload21:34:213
802599270,26cyclictest0-21swapper/322:05:033
802599270,23cyclictest0-21swapper/322:58:043
802599260,25cyclictest27412-21ssh23:52:443
802599260,25cyclictest1264-21diskmemload00:06:563
802599260,25cyclictest0-21swapper/323:21:333
802599260,22cyclictest1757-21ssh23:31:413
8020992621,2cyclictest0-21swapper/200:21:202
8011992623,2cyclictest0-21swapper/023:49:220
8025992523,2cyclictest0-21swapper/323:28:113
802599250,21cyclictest23879-21ssh22:26:493
802599250,1cyclictest0-21swapper/323:55:113
8020992522,0cyclictest1264-21diskmemload21:20:522
8016992524,1cyclictest0-21swapper/100:28:451
8011992523,1cyclictest0-21swapper/021:30:000
8011992521,3cyclictest677-21ssh00:26:570
801199250,24cyclictest23679-21ssh23:50:050
8025992423,1cyclictest1264-21diskmemload22:14:023
8025992422,2cyclictest0-21swapper/322:48:143
8025992421,2cyclictest17452-21ssh21:23:423
8025992420,4cyclictest0-21swapper/322:53:343
8025992420,3cyclictest1264-21diskmemload21:53:243
8025992420,3cyclictest0-21swapper/322:24:053
802599240,24cyclictest0-21swapper/300:22:563
802599240,23cyclictest0-21swapper/322:38:593
802599240,23cyclictest0-21swapper/300:30:173
802599240,1cyclictest1264-21diskmemload21:38:543
802599240,0cyclictest0-21swapper/323:02:503
802599240,0cyclictest0-21swapper/321:29:413
802599240,0cyclictest0-21swapper/321:19:173
8020992422,1cyclictest0-21swapper/222:05:022
8020992421,2cyclictest23588-21ssh23:21:572
8020992421,2cyclictest17115-21ssh23:16:442
8020992420,0cyclictest0-21swapper/223:57:532
802099240,24cyclictest0-21swapper/223:04:562
802099240,23cyclictest0-21swapper/222:57:162
802099240,23cyclictest0-21swapper/222:38:382
802099240,23cyclictest0-21swapper/221:11:232
802099240,22cyclictest313-21systemd-journal19:25:012
802099240,0cyclictest1264-21diskmemload00:08:012
802099240,0cyclictest0-21swapper/200:11:552
8016992422,1cyclictest0-21swapper/121:53:141
801699240,24cyclictest0-21swapper/123:48:431
801699240,24cyclictest0-21swapper/100:04:361
801699240,23cyclictest7895-21sh23:07:181
801699240,23cyclictest1264-21diskmemload22:09:451
801699240,23cyclictest0-21swapper/123:34:531
801699240,23cyclictest0-21swapper/122:19:371
801699240,23cyclictest0-21swapper/119:56:531
8011992424,0cyclictest62550irq/127-eno122:59:150
8011992421,2cyclictest2453-40mandb00:00:010
801199240,24cyclictest1264-21diskmemload23:07:480
801199240,24cyclictest0-21swapper/023:14:040
801199240,24cyclictest0-21swapper/023:14:040
801199240,23cyclictest62550irq/127-eno100:05:040
801199240,23cyclictest4826-21cron20:10:010
801199240,23cyclictest1264-21diskmemload22:21:040
801199240,23cyclictest0-21swapper/000:21:420
801199240,1cyclictest6739-21rm23:35:430
801199240,1cyclictest27407-21ssh22:01:080
801199240,0cyclictest0-21swapper/021:36:030
8025992323,0cyclictest0-21swapper/323:10:103
8025992323,0cyclictest0-21swapper/323:10:103
8025992323,0cyclictest0-21swapper/300:39:043
8025992323,0cyclictest0-21swapper/300:18:513
8025992322,1cyclictest1264-21diskmemload23:44:253
8025992320,3cyclictest0-21swapper/321:40:263
8025992320,2cyclictest3292-21ssh00:00:413
802599230,2cyclictest20371-21cron19:35:013
802599230,23cyclictest19444-21ssh00:14:503
802599230,23cyclictest1264-21diskmemload22:34:263
802599230,23cyclictest0-21swapper/323:35:143
802599230,22cyclictest32463-21munin-run20:00:003
802599230,22cyclictest20349-21ssh23:18:433
802599230,1cyclictest19351-21/usr/sbin/munin23:47:003
802599230,0cyclictest10993-21apt-get21:46:523
8020992323,0cyclictest0-21swapper/221:31:532
8020992321,1cyclictest10781-21apt-get19:16:532
8020992321,1cyclictest0-21swapper/222:04:512
802099231,21cyclictest31435-21ssh21:36:122
802099230,23cyclictest1264-21diskmemload00:36:582
802099230,23cyclictest0-21swapper/223:43:582
802099230,23cyclictest0-21swapper/223:32:582
802099230,23cyclictest0-21swapper/221:41:232
802099230,23cyclictest0-21swapper/200:27:512
802099230,22cyclictest606-21dbus-daemon21:55:012
802099230,22cyclictest1264-21diskmemload22:28:102
802099230,22cyclictest0-21swapper/223:35:552
802099230,22cyclictest0-21swapper/223:10:432
802099230,22cyclictest0-21swapper/223:10:432
802099230,0cyclictest0-21swapper/220:26:532
802099230,0cyclictest0-21swapper/200:34:452
8016992323,0cyclictest1264-21diskmemload21:35:321
8016992323,0cyclictest0-21swapper/122:28:011
8016992323,0cyclictest0-21swapper/121:55:191
8016992323,0cyclictest0-21swapper/121:46:401
8016992323,0cyclictest0-21swapper/121:43:591
8016992323,0cyclictest0-21swapper/121:12:411
8016992322,1cyclictest1264-21diskmemload21:21:291
8016992321,1cyclictest30240-21ssh23:56:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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