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2026-01-19 - 11:02
[ 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 #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 rack3slot3s.osadl.org (updated Mon Jan 19, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
859619211858,53sleep30-21swapper/319:07:473
85951928454,9sleep20-21swapper/219:06:302
85883628453,20sleep00-21swapper/019:05:210
85957227762,9sleep10-21swapper/119:07:101
859937992623,1cyclictest0-21swapper/320:00:123
859937992622,2cyclictest0-21swapper/319:25:123
859937992522,1cyclictest0-21swapper/321:50:143
859937992521,2cyclictest0-21swapper/323:55:003
859937992419,2cyclictest0-21swapper/320:55:003
859937992321,1cyclictest0-21swapper/323:25:173
859937992321,1cyclictest0-21swapper/322:30:003
859937992320,1cyclictest0-21swapper/300:15:153
859937992220,1cyclictest0-21swapper/322:55:153
859937992219,1cyclictest0-21swapper/322:15:163
859937992219,1cyclictest0-21swapper/322:05:233
859937992219,1cyclictest0-21swapper/321:40:143
859937992219,1cyclictest0-21swapper/320:10:003
85993799221,18cyclictest1098779-21chrt22:52:363
85993799212,13cyclictest1120212-21taskset23:15:123
859937992119,1cyclictest0-21swapper/322:40:163
859937992118,1cyclictest0-21swapper/320:32:183
859937992118,1cyclictest0-21swapper/300:25:143
11349592211,4sleep21135013-21ntpq23:25:232
85993799202,12cyclictest898916-21taskset19:45:113
859937992018,1cyclictest0-21swapper/300:25:003
859937992017,1cyclictest0-21swapper/323:55:183
859937992017,1cyclictest0-21swapper/323:45:003
859937992017,1cyclictest0-21swapper/323:10:003
859937992017,1cyclictest0-21swapper/321:20:113
85993799201,6cyclictest10361612sleep321:55:123
85993799196,9cyclictest932774-21taskset20:15:163
85993799194,9cyclictest988431-21taskset21:10:073
85993799194,13cyclictest877508-21taskset19:22:573
859937991916,1cyclictest0-21swapper/323:45:233
859937991916,1cyclictest0-21swapper/323:10:163
859937991916,1cyclictest0-21swapper/322:10:173
859937991916,1cyclictest0-21swapper/322:00:153
859937991916,1cyclictest0-21swapper/321:35:153
859937991916,1cyclictest0-21swapper/320:40:213
859937991916,1cyclictest0-21swapper/319:30:173
859937991916,1cyclictest0-21swapper/300:35:183
859937991915,2cyclictest0-21swapper/321:00:173
859937991911,4cyclictest11401892sleep323:30:203
85993799191,14cyclictest0-21swapper/319:55:063
8600942181,4sleep00-21swapper/019:10:130
85993799189,6cyclictest956661-21turbostat20:40:003
859937991816,1cyclictest0-21swapper/323:40:003
859937991816,1cyclictest0-21swapper/322:45:163
859937991816,1cyclictest0-21swapper/322:45:153
859937991815,1cyclictest0-21swapper/321:15:193
859937991815,1cyclictest0-21swapper/319:50:163
859937991815,1cyclictest0-21swapper/319:10:153
859937991813,3cyclictest0-21swapper/319:15:583
859937991813,2cyclictest0-21swapper/323:20:113
85993799181,13cyclictest0-21swapper/320:45:123
859937991715,1cyclictest0-21swapper/322:20:133
859937991714,2cyclictest0-21swapper/300:30:163
859937991714,1cyclictest0-21swapper/319:40:183
859937991713,2cyclictest0-21swapper/323:01:263
859937991713,2cyclictest0-21swapper/322:37:223
859937991713,2cyclictest0-21swapper/321:48:323
859937991713,2cyclictest0-21swapper/321:31:373
859937991713,2cyclictest0-21swapper/321:25:433
859937991713,2cyclictest0-21swapper/321:06:293
859937991713,2cyclictest0-21swapper/320:56:543
859937991713,2cyclictest0-21swapper/320:20:153
859937991713,2cyclictest0-21swapper/319:38:143
859937991713,2cyclictest0-21swapper/300:10:133
859937991713,2cyclictest0-21swapper/300:05:133
859937991712,2cyclictest0-21swapper/320:25:113
11844012171,11sleep21185933-21kthreadcore00:15:162
10718032171,10sleep21071849-21ntpq22:25:182
10418482171,4sleep01041964-21irqstats22:00:150
859937991614,1cyclictest0-21swapper/322:30:223
859937991614,1cyclictest0-21swapper/320:10:133
859937991613,1cyclictest0-21swapper/300:00:023
11204742150,10sleep01120598-21perl23:15:150
10579732151,9sleep21059634-21tr22:15:162
11991912141,9sleep01199271-21cat00:30:010
10927632141,9sleep01092816-21/usr/sbin/munin22:45:210
10927632141,9sleep01092816-21/usr/sbin/munin22:45:200
9306102131,7sleep1930629-21apt-get20:15:111
11840912131,7sleep01184301-21hddtemp_smartct00:15:140
11534822131,7sleep11155237-21kthreadcore23:45:181
10471302131,8sleep11047203-21kernelversion22:05:131
9976452121,5sleep2997734-21ntpq21:15:212
9640192121,7sleep2965842-21kthreadcore20:45:182
9532032121,6sleep2954946-21cut20:35:162
9464742120,3sleep0946720-21df_inode20:30:130
12052292121,7sleep01205856-21kthreadcore00:35:180
11296842121,6sleep11129733-21ntpq23:20:201
10431042121,7sleep21044898-21cut22:00:182
10157062121,7sleep21017183-21tr21:35:162
9924982111,5sleep0992552-21ntpq21:10:210
8942992110,7sleep0895951-21cut19:40:160
8716712110,1sleep00-21swapper/019:15:260
11626312110,6sleep01162137-21apt-get23:55:020
11521992111,6sleep21152343-21grep23:45:152
11411632111,5sleep21141211-21munin-run23:35:002
11315022112,2sleep10-21swapper/123:25:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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