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2026-03-04 - 07:36
[ 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 #2, 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.

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 20 highest latencies:
System rack2slot7s.osadl.org (updated Tue Mar 03, 2026 19:55:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
167845996730,25cyclictest1000974-21sh18:11:202
167843996353,6cyclictest453942-21sort17:42:350
167845996033,23cyclictest423422-21sh17:41:152
167845995749,3cyclictest365267-21kworker/u8:3-xprtiod17:50:342
167845995733,21cyclictest949898-21sh18:08:562
167843995739,14cyclictest479040-21execl17:50:260
167843995545,7cyclictest1028716-21tee18:12:330
167845995335,15cyclictest478761-21Run17:49:132
167844995341,7cyclictest404736-21od17:40:271
167844995243,5cyclictest986162-21wc18:10:351
167843995242,5cyclictest151ktimers/018:05:260
167844994940,6cyclictest624514-21spawn18:03:251
167844994940,5cyclictest977443-21sh18:10:021
167844994938,8cyclictest479037-21execl17:50:321
167845994727,17cyclictest838759-21spawn18:04:152
16784599441,9cyclictest170152-21awk17:10:252
16784599441,13cyclictest481304-21ntpq17:55:252
167844994437,4cyclictest158163-21kworker/u8:4-xprtiod17:15:011
167844994335,5cyclictest399338-21sh17:40:011
167843994333,7cyclictest399239-21sort17:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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