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2026-02-04 - 14:31
[ 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 #5, slot #3

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 rack5slot3s.osadl.org (updated Wed Feb 04, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148862235164,57sleep30-21swapper/307:07:433
147252224153,57sleep20-21swapper/207:05:372
1331722200,4sleep00-21swapper/007:05:130
148062201169,21sleep10-21swapper/107:06:411
928321560,2sleep00-21swapper/010:35:120
1631321450,5sleep11515399cyclictest09:35:211
8662530,5sleep01514899cyclictest11:30:020
178512510,4sleep01514899cyclictest12:10:190
178512510,4sleep01514899cyclictest12:10:190
15165995148,2cyclictest41-21ksoftirqd/310:51:353
136212480,4sleep339-21rcuc/312:00:233
15165994339,3cyclictest0-21swapper/308:11:223
15165994037,2cyclictest0-21swapper/311:26:513
315752390,1sleep20-21swapper/211:25:152
1515399351,18cyclictest19479-21diskstats12:15:151
1515399328,8cyclictest0-21swapper/111:31:121
1515399322,14cyclictest25228-21munin-run08:45:011
1515399322,14cyclictest25228-21munin-run08:45:011
1515399299,5cyclictest8264-21munin-run09:20:021
1515399291,18cyclictest0-21swapper/109:58:101
1515399291,17cyclictest0-21swapper/111:52:541
1515399291,17cyclictest0-21swapper/109:52:121
1515399290,18cyclictest0-21swapper/112:21:181
1515399289,8cyclictest0-21swapper/109:46:481
1515399287,7cyclictest0-21swapper/111:47:321
1515399284,4cyclictest0-21swapper/111:43:481
1515399281,8cyclictest16545-21kworker/u8:012:29:451
1515399281,21cyclictest0-21swapper/111:19:511
1515399281,20cyclictest0-21swapper/109:27:351
1515399281,17cyclictest0-21swapper/112:38:391
1515399281,17cyclictest0-21swapper/110:50:361
1515399281,17cyclictest0-21swapper/110:19:111
1515399281,16cyclictest0-21swapper/111:59:581
1515399281,13cyclictest0-21swapper/110:45:161
1515399280,17cyclictest15390-21kworker/u8:010:55:261
1514899281,7cyclictest0-21swapper/011:48:030
1514899281,13cyclictest29632-21perf08:55:010
253022271,22sleep225405-21/usr/sbin/munin11:10:192
1515399271,5cyclictest0-21swapper/110:05:211
1515399271,3cyclictest1439-21cstates07:50:121
1515399271,15cyclictest21255-21ps11:00:231
1515399271,15cyclictest21255-21ps11:00:231
1515399271,15cyclictest0-21swapper/109:24:421
182942260,13sleep20-21swapper/207:15:112
1516599262,21cyclictest28889-21/usr/sbin/munin11:20:143
1516599261,5cyclictest7991-21open_files10:30:223
1515899261,8cyclictest20453-21switchtime12:15:262
1515399268,9cyclictest10950-21chrt10:38:371
1515399268,9cyclictest0-21swapper/110:10:431
1515399261,4cyclictest16545-21kworker/u8:012:30:251
15153992614,3cyclictest0-21swapper/109:44:001
1515399261,16cyclictest10722-21gltestperf08:10:141
1515399261,14cyclictest0-21swapper/110:25:021
1515399261,11cyclictest9837-21awk08:10:011
1515399261,11cyclictest14852-21cpuspeed_turbos12:05:101
15153992610,3cyclictest17830-21proc_pri08:25:231
1515399260,6cyclictest16545-21kworker/u8:012:11:041
1515399260,6cyclictest16545-21kworker/u8:012:11:041
1516599251,6cyclictest6511-21ls09:15:123
1516599251,21cyclictest5608-21sshd11:43:513
1516599250,9cyclictest0-21swapper/311:17:253
1515399256,4cyclictest0-21swapper/111:27:381
1515399251,21cyclictest223382sleep107:24:141
1515399251,16cyclictest0-21swapper/111:35:521
1515399251,16cyclictest0-21swapper/109:30:491
1515399250,20cyclictest0-21swapper/110:22:121
1515399250,15cyclictest0-21swapper/108:55:131
1514899252,12cyclictest29894-21munin-run12:40:020
1514899250,12cyclictest14859-21idleruntime-cro09:35:010
1516599249,3cyclictest15105-21sshd10:45:333
1516599246,16cyclictest88150irq/126-enp1s0-08:40:213
1516599246,16cyclictest88150irq/126-enp1s0-08:40:213
1516599243,8cyclictest4847-21kworker/u8:112:07:183
1516599242,11cyclictest21675-21/usr/sbin/munin09:50:273
15165992418,3cyclictest1012-21turbostat07:50:013
1516599241,10cyclictest19475-21/usr/sbin/munin09:45:193
1516599240,7cyclictest0-21swapper/311:57:123
1515399248,8cyclictest23322-21/usr/sbin/munin11:05:191
1515399242,19cyclictest16417-21ntp_states07:10:201
1515399242,15cyclictest32421-21kworker/u8:210:32:471
1515399242,15cyclictest25520-21kworker/u8:110:00:521
1515399241,17cyclictest0-21swapper/108:48:011
1515399241,16cyclictest0-21swapper/111:13:331
1515399241,16cyclictest0-21swapper/108:20:081
1515399241,16cyclictest0-21swapper/107:35:131
1515399241,15cyclictest0-21swapper/112:01:351
1515399241,15cyclictest0-21swapper/109:10:331
1515399241,15cyclictest0-21swapper/109:07:341
1515399241,15cyclictest0-21swapper/108:30:241
1515399240,22cyclictest0-21swapper/110:40:161
1515399240,18cyclictest0-21swapper/107:46:551
1514899247,15cyclictest17065-21basename09:40:010
1516599237,3cyclictest10677-21/usr/sbin/munin09:25:133
1516599236,4cyclictest1818-21grep10:15:253
1516599232,7cyclictest15750-21hddtemp_smartct09:35:143
1516599231,6cyclictest0-21swapper/311:04:033
1516599231,6cyclictest0-21swapper/311:04:023
1516599231,5cyclictest0-21swapper/310:00:073
1516599231,4cyclictest0-21swapper/312:31:133
1516599231,4cyclictest0-21swapper/310:55:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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