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2026-02-11 - 03:41
[ 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 Wed Feb 11, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
828722620,2sleep08286-21cat22:00:270
27762213221,86sleep027768-21ntp_states19:05:180
1455121230,4chrt14469-21/usr/sbin/munin20:20:160
166021220,3chrt1655-21ntp_states21:35:210
1728421200,3sleep017285-21cat22:35:270
3036321190,4chrt30355-21ntp_states19:15:210
2360321190,3sleep023604-21cat20:55:140
698021160,4chrt6981-21readlink21:55:270
1216421140,4sleep012162-21ntp_states20:10:240
425221010,3sleep04257-21ntp_states21:45:220
157752980,3sleep015839-21/usr/sbin/munin22:30:190
223252920,3sleep022356-21/usr/sbin/munin22:55:270
68642830,2sleep06867-21sed00:00:260
288072820,2sleep028809-21ntpq23:20:220
28686996931,28cyclictest13550-21/usr/sbin/munin20:15:250
2868699608,18cyclictest25908-21/usr/sbin/munin23:10:200
2868699607,23cyclictest12897-21grep22:20:000
28686996012,15cyclictest22728-21/usr/sbin/munin20:50:280
2868699599,18cyclictest8049-21df_inode19:55:150
28686995918,14cyclictest9569-21seq20:00:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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