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2026-01-15 - 05:07
[ 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 Thu Jan 15, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235972239165,25sleep20-21swapper/219:06:272
235972239165,25sleep20-21swapper/219:06:272
237842235164,58sleep30-21swapper/319:08:533
237842235164,58sleep30-21swapper/319:08:533
238482201165,24sleep00-21swapper/019:09:430
238482201165,24sleep00-21swapper/019:09:420
235442201164,24sleep10-21swapper/119:05:451
235442201164,24sleep10-21swapper/119:05:451
443221720,3sleep32397199cyclictest20:50:133
579621240,2sleep22396699cyclictest00:35:022
23966997975,3cyclictest0-21swapper/223:24:052
102872680,4sleep110254-21cstates19:50:121
25682640,4sleep32397199cyclictest19:30:233
248282570,4sleep121-21rcuc/121:35:181
285332530,4sleep1221ktimersoftd/121:45:131
219492490,4sleep341-21ksoftirqd/320:15:183
2397199415,24cyclictest87150irq/126-enp1s0-21:50:163
2397199401,28cyclictest820-21lldpd00:34:583
2397199393,18cyclictest15207-21awk23:40:203
2397199391,27cyclictest12672-21perf21:10:013
2397199381,27cyclictest24280-21munin-run22:50:013
2397199377,21cyclictest20737-21/usr/sbin/munin23:55:233
2397199361,6cyclictest25851-21latency_hist21:40:013
2397199361,26cyclictest29582-21/usr/sbin/munin00:15:163
2397199351,5cyclictest4882-21cpuspeed_turbos22:05:113
2397199351,5cyclictest0-21swapper/300:28:283
2397199351,4cyclictest0-21swapper/322:35:153
2397199351,26cyclictest0-21swapper/300:04:093
2397199351,23cyclictest11841-21/usr/sbin/munin22:20:133
2397199348,16cyclictest12892-21/usr/sbin/munin21:10:113
2397199346,11cyclictest87150irq/126-enp1s0-20:20:253
2397199341,3cyclictest7384-21/usr/sbin/munin20:55:213
2397199341,19cyclictest0-21swapper/323:30:123
23971993411,20cyclictest29531-21sendmail_mailtr21:45:243
2396299340,16cyclictest0-21swapper/121:25:181
2397199338,22cyclictest17550-21latency20:05:183
2397199332,28cyclictest25780-21tail00:05:153
2397199332,27cyclictest32095-21head23:05:163
2397199331,3cyclictest18271-21needreboot21:20:203
2397199327,21cyclictest16672-21diskstats23:45:133
2397199326,18cyclictest87450irq/129-enp1s0-22:50:223
2397199322,4cyclictest28678-21munin-run23:00:013
2397199321,6cyclictest0-21swapper/321:30:203
2397199321,6cyclictest0-21swapper/321:30:193
2397199321,5cyclictest0-21swapper/319:35:203
2397199321,20cyclictest4566-21ls22:05:023
2397199321,15cyclictest920-21/usr/sbin/munin23:10:193
2396299321,14cyclictest11765-21ntp_states21:05:221
2395499329,11cyclictest26492-21perf22:55:010
2395499326,12cyclictest17067-21munin-run21:20:010
2397199315,2cyclictest15891-21cstates22:30:123
2397199311,2cyclictest0-21swapper/323:35:113
23971993110,18cyclictest9119-21/usr/sbin/munin22:15:293
23971993110,18cyclictest30882-21ls23:05:013
2395499311,2cyclictest0-21swapper/020:03:580
2395499311,10cyclictest0-21swapper/019:18:320
2397199309,18cyclictest31825-21latency_hist20:40:013
2397199309,17cyclictest25220-21ntpq19:10:213
2397199306,1cyclictest0-21swapper/323:20:123
2397199303,5cyclictest8183-21smart_sda22:10:233
2397199303,14cyclictest0-21swapper/323:50:053
2397199303,14cyclictest0-21swapper/323:50:053
2397199302,4cyclictest12003-40dnf19:54:403
2397199302,2cyclictest87450irq/129-enp1s0-20:14:103
2397199302,18cyclictest7076-21ntp_states00:35:213
2397199301,7cyclictest7876-21/usr/sbin/munin19:45:233
2397199301,5cyclictest13316-21/usr/sbin/munin19:55:193
2397199301,4cyclictest32399-21df_inode20:40:133
2397199301,3cyclictest8557-21/usr/sbin/munin23:25:193
2397199301,3cyclictest28489-21sort19:15:243
2397199301,3cyclictest20727-21/usr/sbin/munin22:40:153
2397199301,3cyclictest20727-21/usr/sbin/munin22:40:153
2397199301,2cyclictest27723-21df00:10:143
2397199301,26cyclictest19483-21/usr/sbin/munin21:25:183
2397199301,13cyclictest0-21swapper/322:25:163
2397199300,5cyclictest0-21swapper/321:55:223
2397199300,19cyclictest8642-21kworker/u8:023:15:253
2396299301,14cyclictest0-21swapper/122:10:261
2396299301,14cyclictest0-21swapper/121:13:381
2396299301,11cyclictest0-21swapper/123:55:021
23954993012,15cyclictest11094-21munin-run22:20:010
2395499301,15cyclictest0-21swapper/019:39:580
2395499301,13cyclictest0-21swapper/020:52:460
2395499301,11cyclictest0-21swapper/022:12:120
2395499300,23cyclictest0-21swapper/022:58:160
2397199299,17cyclictest25626-21cpuspeed_turbos20:25:123
2397199291,4cyclictest6750-21ntp_states19:40:203
2397199291,3cyclictest8543-21/usr/sbin/munin21:00:113
2397199291,3cyclictest29870-21/usr/sbin/munin19:20:133
2397199290,16cyclictest0-21swapper/321:40:193
2396299294,3cyclictest0-21swapper/120:28:501
23962992910,3cyclictest0-21swapper/121:00:181
2395499291,2cyclictest0-21swapper/021:48:360
2395499291,12cyclictest0-21swapper/020:31:420
2397199287,18cyclictest32448-21seq00:20:153
2397199286,19cyclictest830-21runrttasks20:45:403
2397199281,4cyclictest32515-21ntp_states19:25:193
2397199281,4cyclictest15769-21hddtemp_smartct21:15:183
2397199281,3cyclictest15513-21/usr/sbin/munin20:00:203
23962992811,3cyclictest32167-21ntp_states23:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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