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2026-02-01 - 08:53
[ 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 #2, slot #7

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 highest latencies:
System rack2slot7s.osadl.org (updated Sat Jan 31, 2026 19:55:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1834510996052,5cyclictest2655770-21sort18:10:210
1834510996034,19cyclictest151ktimers/017:45:100
1834511995943,11cyclictest1837443-21Run18:02:441
1834512995545,5cyclictest2657201-21tee18:10:252
1834510995441,10cyclictest2603550-21looper18:08:140
1834510995441,10cyclictest2603550-21looper18:08:140
1834510995438,10cyclictest0-21swapper/017:50:110
1834511995345,5cyclictest2659783-21sort18:10:321
1834510995342,8cyclictest2131966-21rm17:42:550
1834511995143,5cyclictest2647813-21sh18:10:001
1834511995143,5cyclictest2647813-21sh18:10:001
1834511995040,6cyclictest1834509-21cyclictest17:20:171
1834511994739,5cyclictest2106993-21sh17:41:521
1834511994737,5cyclictest0-21swapper/117:50:161
1834512994637,6cyclictest2076454-21sh17:40:362
1834510994634,9cyclictest1906984-21spawn17:34:240
1834512994538,4cyclictest1835660-21kworker/u8:10-xprtiod18:08:462
1834512994538,4cyclictest1835660-21kworker/u8:10-xprtiod18:08:462
1834512994537,5cyclictest2725999-21systemd-run18:35:012
1834512994535,6cyclictest2148916-21execl17:50:142
1834510994538,5cyclictest1837451-21sh17:15:000
1834510994437,4cyclictest1838904-21whetstone-doubl17:20:000
1834510994234,5cyclictest2066690-21basename17:40:010
1834510994234,5cyclictest2066690-21basename17:40:010
1834510994231,8cyclictest0-21swapper/017:20:120
1834510994229,10cyclictest0-21swapper/018:30:010
1834510994134,5cyclictest2151579-21Run18:00:070
1834512994031,6cyclictest2151428-21fstime17:57:492
1834512994031,5cyclictest2148256-21execl17:50:012
1834511994033,4cyclictest2066793-21tee17:40:011
1834511994033,4cyclictest2066793-21tee17:40:011
1834512993931,5cyclictest564-21dbus-daemon18:25:012
1834511993931,6cyclictest0-21swapper/117:59:281
1834511993930,6cyclictest2724484-21munin-plugin-st18:30:011
1834511993921,14cyclictest271ktimers/117:45:121
183451199391,29cyclictest1842976-21pipe17:30:111
1834510993929,6cyclictest2151419-21Run17:57:430
1834512993833,3cyclictest0-21swapper/217:15:012
1834512993830,5cyclictest563-21avahi-daemon18:02:562
1834512993828,6cyclictest2030327-21systemd-run17:35:012
1834511993823,9cyclictest0-21swapper/118:15:111
1834510993830,5cyclictest0-21swapper/018:40:010
1834512993732,2cyclictest0-21swapper/217:25:012
1834512993731,3cyclictest0-21swapper/217:40:012
1834512993731,3cyclictest0-21swapper/217:40:012
1834512993729,5cyclictest341rcuc/217:15:142
1834512993727,7cyclictest2727490-21sendmail18:40:012
1834511993728,4cyclictest0-21swapper/117:25:091
1834511993626,7cyclictest1839309-21latency_hist17:20:021
1834511993526,6cyclictest1837127-21sed17:10:221
1834512993429,2cyclictest0-21swapper/217:30:012
1834512993428,3cyclictest0-21swapper/217:05:012
1834511993324,6cyclictest2727510-21systemd-run18:40:011
1834512993222,5cyclictest0-21swapper/218:15:112
1834510993125,3cyclictest0-21swapper/017:25:150
1834510993121,7cyclictest1-21systemd18:25:010
1834510993121,7cyclictest0-21swapper/018:35:010
1834512993025,2cyclictest0-21swapper/218:30:012
1834511993025,2cyclictest0-21swapper/118:35:011
1834511993024,4cyclictest271ktimers/117:05:131
1834511993024,4cyclictest271ktimers/117:05:131
183451199302,23cyclictest519918-21cupsd18:20:131
1834511992916,3cyclictest1834527-21munin-run17:05:021
1834510992814,11cyclictest0-21swapper/017:10:010
1834510992814,11cyclictest0-21swapper/017:10:010
1834510992721,4cyclictest519922-21cups-browsed18:18:120
183451399263,4cyclictest0-21swapper/318:10:233
183451299261,3cyclictest171rcu_preempt17:05:102
183451299261,3cyclictest171rcu_preempt17:05:102
183451399252,4cyclictest0-21swapper/317:45:123
183451399252,18cyclictest0-21swapper/317:57:003
183451399251,5cyclictest0-21swapper/317:20:103
183451399244,8cyclictest0-21swapper/317:10:123
183451399242,4cyclictest0-21swapper/318:15:133
183451399240,4cyclictest0-21swapper/318:05:133
183451399240,4cyclictest0-21swapper/318:05:133
183451399232,17cyclictest0-21swapper/317:50:153
183451399231,7cyclictest0-21swapper/317:05:103
183451399231,7cyclictest0-21swapper/317:05:103
183451399231,5cyclictest0-21swapper/318:35:103
183451399231,4cyclictest0-21swapper/318:25:083
1834510992317,3cyclictest0-21swapper/017:05:010
183451399222,5cyclictest0-21swapper/318:00:143
183451399221,6cyclictest0-21swapper/317:40:133
183451399221,4cyclictest0-21swapper/318:30:123
183451399221,3cyclictest0-21swapper/317:30:063
183451399221,3cyclictest0-21swapper/317:25:113
183451399213,8cyclictest0-21swapper/317:15:093
183451399213,7cyclictest0-21swapper/318:20:103
183451399211,4cyclictest0-21swapper/317:35:143
183451399211,4cyclictest0-21swapper/317:35:143
183451399201,4cyclictest0-21swapper/317:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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