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2026-02-01 - 20:04
[ 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 #4, slot #6

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.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack4slot6s.osadl.org (updated Sun Feb 01, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1192422590,3sleep011925-21sort11:55:170
3196222460,2sleep031966-21timerwakeupswit11:05:280
193422270,2sleep01935-21cut11:15:260
2407721800,69chrt24078-21/usr/sbin/munin08:30:230
1627421590,4sleep016341-21grep10:05:270
449521540,3sleep04496-21ntpq09:20:190
77721300,2sleep0778-21mailstats09:05:260
819321230,3sleep08196-21missed_timers11:40:190
2142421160,3chrt21420-21ps10:25:270
2234021040,3sleep022358-21modprobe08:25:000
265042990,4sleep026357-21/usr/sbin/munin08:40:180
315112920,3sleep031557-21egrep09:00:110
138462926,10sleep013912-21ls07:50:260
289772906,10sleep028980-21df_inode08:50:150
302402795,61sleep030245-21irqstats11:00:170
200232786,60sleep020065-21memory08:15:190
93312763,5sleep00-21swapper11:45:150
264727616,17sleep00-21swapper07:07:310
67812730,2sleep06782-21latency_hist09:30:020
31802720,3sleep03182-21ls07:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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