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2026-02-22 - 08:44
[ 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 #b, 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.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 50 highest latencies:
System rackbslot7s.osadl.org (updated Sun Feb 22, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
203812115718,1127sleep223174-1kworker/2:2H23:04:342
15437273012,702sleep115461-21/usr/sbin/munin00:29:381
2685926008,580sleep226903-21ntpq19:59:482
17252251012,482sleep331126-1kworker/3:0H00:34:413
7855248017,443sleep27982-21timerwakeupswit22:24:532
29020243811,411sleep029063-21ntpq23:29:440
9083232415,254sleep29101-21fschecks_count22:29:412
15495230913,52sleep20-21swapper/222:49:442
15195225347,116sleep20-21swapper/221:04:492
16858224848,29sleep20-21swapper/222:54:412
23080223348,28sleep20-21swapper/221:29:532
26307223235,173sleep226457-21unixbench_multi23:20:502
26307223235,173sleep226457-21unixbench_multi23:20:502
29954223013,201sleep330084-21latency_hist23:34:233
2379022279,205sleep023798-21ntpq19:49:490
1147622238,199sleep211594-21vmstat19:14:262
1147622238,199sleep211594-21vmstat19:14:262
2796222112,186sleep12874-21sed22:09:451
9411221345,60sleep29424-21kernelversion00:09:442
412622067,54sleep24197-21switchtime20:29:522
412622067,54sleep24197-21switchtime20:29:522
336521949,165sleep23515-21latency_hist20:29:242
10082218641,29sleep20-21swapper/220:49:592
30401217745,117sleep230453-21cat23:34:432
15897217316,115sleep20-21swapper/200:29:512
4812217010,111sleep20-21swapper/223:54:462
4812217010,111sleep20-21swapper/223:54:462
2195521699,149sleep013441-21snmpd21:25:470
21009216411,136sleep021082-21find23:05:050
25417216115,132sleep00-21swapper/019:54:530
11971216010,123sleep212009-21sendmail00:19:212
43921589,139sleep213441-21snmpd22:01:182
43921589,139sleep213441-21snmpd22:01:182
12218215815,122sleep212287-21fschecks_time22:39:432
12263215186,41sleep20-21swapper/200:19:332
31719215011,94sleep20-21swapper/220:14:462
31719215011,94sleep20-21swapper/220:14:462
1638421507,41sleep216447-21cut21:09:422
23731214744,51sleep20-21swapper/219:49:462
2297214730,58sleep22339-21sort20:24:432
31673213922,94sleep331875-21sort23:39:243
32753213818,62sleep20-21swapper/223:40:002
14847213711,107sleep214957-21dpkg19:24:232
6463213513,106sleep06543-21latency_hist20:39:230
6382212644,33sleep26419-21cron20:39:212
21904212666,19sleep20-21swapper/219:44:422
10579212110,70sleep210653-21cat19:09:532
10579212110,70sleep210653-21cat19:09:532
28548212013,93sleep028596-21sed20:05:030
25947212018,50sleep20-21swapper/219:56:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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