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2026-01-18 - 19:35
[ 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 Jan 18, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2812722460,2sleep028126-21cut12:30:230
269522390,2sleep02696-21/usr/sbin/munin08:45:100
1418921300,4chrt13711-21/usr/sbin/munin09:30:270
583621230,4chrt5835-21/usr/sbin/munin11:05:110
2914421230,3sleep029143-21switchtime08:20:270
436421180,4chrt4366-21sendmail11:00:010
1874421180,2sleep018743-21ls09:50:000
116089911810,16cyclictest26465-21find08:10:260
11608991177,15cyclictest17218-21chrt09:43:060
116089911610,17cyclictest28524-21munin-run08:20:020
1799621150,4chrt17994-21vmstat11:50:280
11608991159,16cyclictest276-21runrttasks10:52:380
11608991149,16cyclictest4939-21awk11:00:260
11608991149,16cyclictest15430-21users11:40:290
11608991148,15cyclictest24323-21ntp_states10:10:220
11608991139,16cyclictest276-21runrttasks09:50:100
11608991139,15cyclictest30817-21/usr/sbin/munin10:35:260
11608991139,14cyclictest31376-21irqstats08:30:170
11608991139,14cyclictest27857-21latency_hist10:25:020
11608991139,13cyclictest25370-21users08:05:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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