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2026-01-25 - 08:29
[ 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 50 highest latencies:
System rack5slot3s.osadl.org (updated Sun Jan 25, 2026 00:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209772238163,23sleep20-21swapper/219:05:332
211022204167,25sleep00-21swapper/019:07:120
210112202165,25sleep10-21swapper/119:06:011
192862201165,24sleep30-21swapper/319:05:023
1348121640,5sleep12141799cyclictest22:30:121
41721320,3sleep02141199cyclictest23:15:020
44962590,1sleep10-21swapper/120:55:171
136512530,5sleep32142899cyclictest22:30:143
205352490,2sleep00-21swapper/000:00:130
302592460,2sleep329186-21/usr/sbin/munin00:20:223
2142499341,14cyclictest0-21swapper/223:35:242
21417993415,8cyclictest0-21swapper/121:51:071
2141199349,11cyclictest0-21swapper/019:50:010
2141199347,12cyclictest1301-21awk20:50:010
2141199326,12cyclictest4147-21perf22:10:010
2141199325,12cyclictest30534-21perf23:10:010
2142499311,15cyclictest0-21swapper/222:23:162
2142499281,13cyclictest0-21swapper/222:11:382
2142499281,13cyclictest0-21swapper/221:10:262
2142499280,13cyclictest0-21swapper/200:09:362
2141799283,2cyclictest88350irq/128-enp1s0-00:00:161
2142499271,9cyclictest0-21swapper/223:28:182
21424992715,3cyclictest0-21swapper/223:14:382
2142499271,12cyclictest10104-21diskmemload22:34:082
2141799262,12cyclictest23919-21munin-run22:55:011
2141799261,17cyclictest0-21swapper/122:46:151
2141799260,19cyclictest0-21swapper/122:20:291
21411992620,3cyclictest2303-21if_enp2s020:50:170
2141199261,12cyclictest21103-21munin-run21:35:010
129542260,3sleep22142499cyclictest23:40:242
2142499254,9cyclictest823-21snmpd22:29:462
21424992510,3cyclictest0-21swapper/223:07:442
2141799254,5cyclictest23-21ksoftirqd/122:15:141
2141799252,17cyclictest0-21swapper/100:25:491
2141799251,12cyclictest0-21swapper/122:03:001
2141199259,13cyclictest3205-21awk00:35:020
2142499245,9cyclictest0-21swapper/220:51:402
2142499245,3cyclictest0-21swapper/200:00:102
21424992415,3cyclictest0-21swapper/221:08:142
21424992411,8cyclictest0-21swapper/220:09:562
2142499241,15cyclictest0-21swapper/220:40:142
2142499241,14cyclictest0-21swapper/200:15:222
2141799241,17cyclictest0-21swapper/100:10:141
2141799241,16cyclictest0-21swapper/121:29:441
21417992410,3cyclictest21720-21cpuspeed_turbos19:10:121
2142899237,6cyclictest0-21swapper/321:34:423
2142899235,10cyclictest10104-21diskmemload22:20:263
21428992311,3cyclictest8528-21awk22:20:013
2142899231,10cyclictest2916-21awk22:05:163
2142499239,3cyclictest0-21swapper/219:20:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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