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2026-02-08 - 00:56
[ 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 #9, slot #4

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 rack9slot4s (updated Sat Feb 07, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312769912581217,28cyclictest0-21swapper/007:25:120
312779911271119,5cyclictest0-21swapper/107:25:131
312779910951068,21cyclictest10392-21python07:50:281
312779910951068,21cyclictest10392-21python07:50:281
308652581537,30sleep10-21swapper/107:21:141
310992458417,26sleep00-21swapper/007:23:440
3127699230206,21cyclictest0-21swapper/007:50:290
3127699230206,21cyclictest0-21swapper/007:50:280
2518421230,8sleep03127699cyclictest09:28:130
154112960,5sleep115409-21ssh11:30:311
258532940,8sleep03127699cyclictest11:08:550
126022840,4sleep00-21swapper/010:55:110
92862820,5sleep19287-21latency_hist07:50:001
132592710,3sleep041ktimersoftd/010:22:110
3127699625,29cyclictest0-21swapper/012:09:550
3127699606,4cyclictest81rcu_preempt10:25:510
3127699602,17cyclictest2206-21dbus-daemon08:09:080
118682600,2sleep10-21swapper/110:20:291
3127699579,14cyclictest6928-21mailstats10:15:280
61202530,24sleep122-21ksoftirqd/107:40:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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