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2026-01-22 - 22:16
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Thu Jan 22, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17576211995,19sleep00-21swapper/007:05:400
17743211795,17sleep20-21swapper/207:07:502
17785211396,12sleep30-21swapper/307:08:233
17860210892,11sleep10-21swapper/107:09:211
202862710,0sleep30-21swapper/310:41:093
198612700,0sleep30-21swapper/312:30:113
191682680,0sleep10-21swapper/108:30:171
241622490,1sleep324161-21ssh11:59:093
188172270,1sleep10-21swapper/111:16:341
1794199250,23cyclictest0-21swapper/107:36:061
1794199240,2cyclictest0-21swapper/108:40:011
1794199240,2cyclictest0-21swapper/108:40:011
1794399230,2cyclictest0-21swapper/308:40:013
1794399230,2cyclictest0-21swapper/308:40:013
1794199230,21cyclictest0-21swapper/111:20:101
145612220,0sleep00-21swapper/009:59:570
89222210,1sleep30-21swapper/311:41:133
1794399210,19cyclictest0-21swapper/312:25:093
1794199211,18cyclictest0-21swapper/112:25:101
17942992017,2cyclictest5019-21kworker/u8:311:49:042
1794199200,18cyclictest0-21swapper/108:20:121
142962200,1sleep20-21swapper/210:34:182
1794399192,7cyclictest0-21swapper/309:51:593
17942991916,2cyclictest5019-21kworker/u8:311:43:042
17942991916,2cyclictest29791-21kworker/u8:107:42:052
1794199191,2cyclictest0-21swapper/110:45:111
17942991815,2cyclictest32399-21kworker/u8:212:10:052
17942991815,2cyclictest27540-21kworker/u8:112:04:052
17942991815,2cyclictest21491-21kworker/u8:210:22:052
17942991815,2cyclictest21018-21kworker/u8:009:47:042
17942991815,2cyclictest20843-21kworker/u8:010:54:052
17942991815,2cyclictest20819-21kworker/u8:011:20:052
17940991815,2cyclictest27540-21kworker/u8:112:33:040
17940991815,2cyclictest24998-21kworker/u8:012:02:050
1794399170,6cyclictest0-21swapper/309:37:593
17942991714,2cyclictest6188-21kworker/u8:008:16:052
17942991714,2cyclictest30180-21kworker/u8:109:56:052
17942991714,2cyclictest26530-21kworker/u8:009:21:032
17942991714,2cyclictest20819-21kworker/u8:011:29:042
17940991714,2cyclictest5019-21kworker/u8:311:51:050
17940991714,2cyclictest27540-21kworker/u8:112:18:050
160302170,1sleep316031-21cat09:25:013
17943991611,3cyclictest8129-21fschecks_time11:05:143
17943991611,3cyclictest0-21swapper/308:05:163
17942991613,2cyclictest30180-21kworker/u8:109:54:052
17942991613,2cyclictest25904-21kworker/u8:111:05:052
17942991613,2cyclictest21491-21kworker/u8:210:10:042
17942991613,2cyclictest2144-21kworker/u8:207:58:052
17942991613,2cyclictest20407-21kworker/u8:108:47:052
1794199161,3cyclictest26508-21grep12:00:281
17941991611,3cyclictest1427-21diskstats10:20:131
17940991613,2cyclictest2774-21kworker/u8:211:11:050
17940991613,2cyclictest27540-21kworker/u8:112:05:050
17940991613,2cyclictest27540-21kworker/u8:111:32:050
17940991613,2cyclictest26691-21kworker/u8:110:38:050
17940991613,2cyclictest21491-21kworker/u8:210:21:040
17940991613,2cyclictest20843-21kworker/u8:010:57:050
17940991613,2cyclictest10672-21kworker/u8:212:39:050
244542150,1sleep124459-21cpuspeed_turbos10:10:111
17943991511,2cyclictest0-21swapper/308:55:003
1794399150,3cyclictest6277-21ssh11:03:373
1794399150,13cyclictest0-21swapper/311:30:243
1794399150,13cyclictest0-21swapper/310:45:163
17942991512,2cyclictest9939-21kworker/u8:208:08:052
17942991512,2cyclictest20720-21kworker/u8:107:28:052
17942991512,2cyclictest18149-21kworker/u8:207:21:052
1794299150,2cyclictest0-21swapper/212:33:042
1794299150,13cyclictest0-21swapper/212:39:052
17941991510,3cyclictest12915-21munin-node1
17941991510,3cyclictest0-21swapper/109:15:171
1794199150,14cyclictest0-21swapper/112:16:081
1794199150,14cyclictest0-21swapper/109:55:191
1794199150,13cyclictest1871-21diskmemload11:33:191
1794199150,13cyclictest0-21swapper/110:44:221
17940991512,2cyclictest5019-21kworker/u8:311:41:050
17940991512,2cyclictest25904-21kworker/u8:110:53:050
17940991512,2cyclictest20407-21kworker/u8:108:41:040
17940991512,2cyclictest20407-21kworker/u8:108:41:040
17940991512,2cyclictest14486-21kworker/u8:109:25:050
17940991512,2cyclictest10672-21kworker/u8:212:21:050
1794099150,13cyclictest27165-21ssh10:49:560
33912140,10sleep220819-21kworker/u8:011:35:282
17943991411,2cyclictest22222-21munin-node3
17943991410,2cyclictest0-21swapper/308:35:003
1794399140,3cyclictest9641-21ssh10:29:133
1794399140,3cyclictest9368-21rm09:16:493
1794399140,2cyclictest0-21swapper/310:32:333
1794399140,2cyclictest0-21swapper/310:11:033
1794399140,2cyclictest0-21swapper/309:44:333
1794399140,2cyclictest0-21swapper/308:40:003
1794399140,2cyclictest0-21swapper/307:15:103
1794399140,2cyclictest0-21swapper/307:10:133
1794399140,13cyclictest0-21swapper/310:24:523
1794399140,12cyclictest25639-21chrt12:35:293
1794399140,12cyclictest1871-21diskmemload12:09:593
1794399140,12cyclictest1871-21diskmemload09:25:433
1794399140,12cyclictest12017-21apt-get11:10:113
1794399140,12cyclictest0-21swapper/310:35:233
17942991411,2cyclictest9939-21kworker/u8:208:24:052
17942991411,2cyclictest6188-21kworker/u8:008:04:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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