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2026-02-03 - 20:33
[ 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 #1, slot #2

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 50 highest latencies:
System rack1slot2s.osadl.org (updated Tue Feb 03, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
50629390,0sleep10-21swapper/107:00:261
131523928,0sleep30-21swapper/307:02:403
135223723,0sleep00-21swapper/007:03:100
123323323,0sleep20-21swapper/207:01:432
339960,0migration/332097-21sh11:50:003
339960,0migration/331133-21sh12:08:023
339960,0migration/323644-21timerandwakeup10:20:283
339960,0migration/31927-21aten_r1power_en09:10:183
339960,0migration/316039-21sh10:36:503
339960,0migration/315501-21sh10:56:223
339960,0migration/315445-21munin-node07:35:283
29715060,0irq/26-eth0-rx-6163-21processes11:30:263
29715060,0irq/26-eth0-rx-31265-21cut09:05:233
15919960,0cyclictest0-21swapper/107:55:241
15909966,0cyclictest0-21swapper/009:55:170
149960,0migration/032596-21sh10:48:310
149960,0migration/024125-21sh11:03:160
149960,0migration/017757-21if_eth1.311:20:180
149960,0migration/014608-21sh11:35:360
149960,0migration/014476-21run-parts11:56:040
149960,0migration/011153-21kthreadcore07:10:220
8215050,0irq/24-0000:00:15826-21cat11:59:592
339950,0migration/39447-21fschecks_time11:15:183
339950,0migration/39373-21munin-node11:35:193
339950,0migration/38169-21taskset10:32:113
339950,0migration/37375-21taskset11:53:453
339950,0migration/35988-21kthreadcore07:55:213
339950,0migration/35700-21timerwakeupswit12:10:263
339950,0migration/330283-21kthreadcore09:25:223
339950,0migration/32892-21irqcore07:05:213
339950,0migration/326957-21kthreadcore07:45:233
339950,0migration/325780-21diskmemload10:25:163
339950,0migration/325019-21sshd09:21:393
339950,0migration/32487-21kthreadcore12:30:213
339950,0migration/32449-21gltestperf10:10:183
339950,0migration/324140-21munin-node08:35:233
339950,0migration/319694-21kthreadcore07:15:233
339950,0migration/319468-21kthreadcore11:40:233
339950,0migration/318906-21kthreadcore11:00:193
339950,0migration/318770-21irqcore08:10:163
339950,0migration/318457-21needreboot08:55:233
339950,0migration/318278-21taskset08:33:033
339950,0migration/317019-21runrttasks10:18:373
29725050,0irq/27-eth0-tx-24019-21ssh11:23:492
29725050,0irq/27-eth0-tx-17332-21cat10:40:052
29725050,0irq/27-eth0-tx-14592-21ntp_offset10:55:232
29725050,0irq/27-eth0-tx-0-21swapper/008:53:300
29725050,0irq/27-eth0-tx-0-21swapper/008:00:270
29715050,0irq/26-eth0-rx-7896-21ssh11:13:263
29715050,0irq/26-eth0-rx-6515-21tr07:30:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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