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2026-02-21 - 08:39
[ 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 50 highest latencies:
System rack2slot7s.osadl.org (updated Fri Feb 20, 2026 19:55:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3340061998271,7cyclictest4161423-21sh18:10:300
3340061996557,5cyclictest3650922-21execl17:50:250
3340061996033,19cyclictest151ktimers/018:00:230
3340062995734,14cyclictest4188406-21sh18:11:381
3340063995648,5cyclictest3632394-21sort17:42:502
3340063995547,4cyclictest0-21swapper/217:50:212
3340061995436,15cyclictest4123790-21tee18:08:590
3340062995245,3cyclictest0-21swapper/117:50:221
3340062995243,6cyclictest4084632-21multi.sh18:07:251
3340063994937,8cyclictest4085146-21sh18:07:262
3340062994940,5cyclictest3589688-21sh17:41:001
3340063994839,5cyclictest4188140-21sh18:11:382
3340061994628,15cyclictest3575242-21sh17:40:200
3340062994437,4cyclictest35506-21munin-plugin-st18:40:011
3340062994335,5cyclictest3570623-21awk17:40:011
3340061994234,5cyclictest3650673-21execl17:50:020
3340061994234,5cyclictest3545687-21sh17:37:530
3340063994130,8cyclictest2041314-21cups-browsed17:05:132
3340062994126,10cyclictest3342406-21ntpq17:10:201
334006299411,32cyclictest3653013-21fstime17:55:251
3340063994031,6cyclictest2041314-21cups-browsed17:15:192
3340062994016,9cyclictest3346268-21execl17:21:101
3340062994015,20cyclictest3654677-21pipe18:00:231
3340061994021,12cyclictest12450irq/32-eth017:20:220
3340063993931,5cyclictest3570574-21cron17:40:002
3340062993933,3cyclictest0-21swapper/117:50:021
3340063993830,5cyclictest3655536-21Run18:00:392
3340062993830,5cyclictest29512-21latency_hist18:20:021
3340062993828,7cyclictest3347079-21/usr/sbin/munin17:25:151
3340062993825,11cyclictest30437-21ntpq18:20:231
3340063993730,4cyclictest3650670-21execl17:50:022
3340063993624,8cyclictest3653845-21fstime17:57:512
3340062993626,7cyclictest33376-21ntpq18:30:201
3340061993628,5cyclictest3340066-21systemd-run17:05:010
3340061993628,5cyclictest1167-21mta-sts-daemon17:35:010
334006399354,22cyclictest1166-21mta-sts-daemon18:30:572
3340062993527,5cyclictest3495138-21spawn17:34:411
3340062993526,6cyclictest3340627-21/usr/sbin/munin17:05:141
3340062993524,7cyclictest31242-21aten_r2power_en18:25:081
334006399344,19cyclictest3345304-21execl17:20:212
3340062993422,9cyclictest3344224-21sshd17:15:281
334006399322,25cyclictest3346554-21fstime17:25:222
3340061993220,9cyclictest0-21swapper/018:20:300
3340063993125,3cyclictest0-21swapper/218:35:302
3340063993123,5cyclictest3343030-21sh17:15:002
3340063993118,3cyclictest171rcu_preempt17:30:202
3340061993122,7cyclictest2041310-21cupsd18:35:150
3340061993117,9cyclictest12450irq/32-eth017:57:510
3340063993017,3cyclictest171rcu_preempt18:20:182
3340063992911,3cyclictest171rcu_preempt18:25:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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