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2026-02-08 - 09:11
[ 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 highest latencies:
System rack2slot7s.osadl.org (updated Sat Feb 07, 2026 19:55:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1742562998574,7cyclictest2558784-21sh18:10:291
1742561997654,19cyclictest2050867-21execl17:50:190
1742562996150,6cyclictest1976377-21sh17:40:291
1742561995346,4cyclictest2624560-21telnet18:25:010
1742563995144,3cyclictest2051755-21kworker/u8:6-xprtiod18:10:262
1742563995143,5cyclictest1987345-21sh17:40:562
174256199503,7cyclictest171rcu_preempt17:40:260
1742561994836,9cyclictest2609979-21rm18:12:330
1742563994739,5cyclictest1970206-21munin-plugin-st17:40:002
1742561994734,10cyclictest2550073-21sh18:10:060
1742561994734,10cyclictest2550073-21sh18:10:060
1742563994638,5cyclictest2546271-21rm18:09:572
1742563994638,5cyclictest2546271-21rm18:09:572
1742562994638,5cyclictest2623133-21latency_hist18:20:021
1742562994637,6cyclictest2548369-21sh18:10:021
1742562994637,6cyclictest2548369-21sh18:10:021
1742563994536,6cyclictest1744367-21sh17:15:012
1742562994331,9cyclictest2190630-21spawn18:03:211
1742562994331,9cyclictest2190630-21spawn18:03:211
1742563994234,5cyclictest2050868-21execl17:50:202
1742563994135,3cyclictest0-21swapper/218:25:012
1742562994134,4cyclictest2050868-21execl17:50:181
1742562994133,5cyclictest2053491-21Run17:59:081
1742561994130,9cyclictest2050245-21execl17:50:030
1742563994031,5cyclictest2327385-21spawn18:04:022
1742563994031,5cyclictest2327385-21spawn18:04:022
1742563994029,8cyclictest812-21cron18:20:012
1742562994031,6cyclictest1933227-21cron17:35:011
1742561993933,4cyclictest2626246-21cpuspeed18:30:020
1742561993932,5cyclictest2102898-21spawn18:03:010
1742561993932,5cyclictest2102898-21spawn18:03:010
1742562993830,5cyclictest2626114-21munin-run18:30:011
1742563993729,5cyclictest2050241-21execl17:49:452
1742562993729,5cyclictest1747615-21cron17:25:011
1742562993728,6cyclictest2050120-21Run17:47:181
1742563993630,3cyclictest0-21swapper/217:35:012
1742563993630,3cyclictest0-21swapper/217:10:002
1742561993621,9cyclictest2623021-21systemd-run18:20:010
1742563993527,5cyclictest1746276-21sed17:20:032
1742563993527,5cyclictest1746276-21sed17:20:032
1742563993523,9cyclictest564-21dbus-daemon18:30:072
1742563993523,9cyclictest564-21dbus-daemon18:30:072
1742562993529,3cyclictest0-21swapper/117:15:011
1742562993527,5cyclictest1746034-21whetstone-doubl17:20:021
1742562993527,5cyclictest1746034-21whetstone-doubl17:20:021
1742562993526,6cyclictest2627475-21cron18:35:011
1742562993526,6cyclictest2627475-21cron18:35:011
1742562993526,5cyclictest2624799-21latency_hist18:25:021
1742561993530,3cyclictest1749194-21pipe17:30:030
1742561993529,4cyclictest2627491-21cron18:35:010
1742561993529,4cyclictest2627491-21cron18:35:010
1742563993428,3cyclictest0-21swapper/217:25:012
1742561993428,4cyclictest1935196-21systemd-run17:35:010
1742561993415,12cyclictest12450irq/32-eth017:20:190
1742562993325,5cyclictest1970214-21sh17:40:001
1742562993325,5cyclictest1749410-21latency_hist17:30:031
1742561993226,4cyclictest2053433-21Run17:58:290
1742563993122,5cyclictest2629241-21/usr/sbin/munin18:40:022
1742563993022,5cyclictest2626183-21aten2.4-expect18:30:012
1742563993021,5cyclictest1749273-21telnet17:30:022
1742563993020,7cyclictest1742515-21munin-plugin-st17:05:022
1742563993020,7cyclictest1742515-21munin-plugin-st17:05:022
1742561993023,5cyclictest0-21swapper/018:40:020
1742561993015,4cyclictest1959290-21sh17:39:030
1742562992923,3cyclictest0-21swapper/117:10:001
1742562992921,5cyclictest2628812-21unixbench-2d18:35:231
1742563992713,10cyclictest2053437-21pipe17:58:392
1742561992723,2cyclictest0-21swapper/017:20:030
1742561992723,2cyclictest0-21swapper/017:20:030
1742561992718,6cyclictest1743247-21cut17:10:020
1742561992619,5cyclictest3606335-21systemd-logind17:05:010
1742561992619,5cyclictest3606335-21systemd-logind17:05:010
174256199229,10cyclictest3606321-21systemd-journal17:13:010
174256499203,9cyclictest0-21swapper/318:10:233
174256299196,10cyclictest564-21dbus-daemon17:05:011
174256299196,10cyclictest564-21dbus-daemon17:05:011
174256499183,9cyclictest0-21swapper/317:56:143
174256499175,7cyclictest0-21swapper/318:01:293
174256499175,7cyclictest0-21swapper/318:01:293
174256499167,5cyclictest0-21swapper/318:07:233
174256499167,5cyclictest0-21swapper/318:07:233
174256499161,8cyclictest0-21swapper/317:40:203
1742564991612,2cyclictest0-21swapper/317:05:013
1742564991612,2cyclictest0-21swapper/317:05:013
174256499152,9cyclictest0-21swapper/317:50:153
174256499152,8cyclictest0-21swapper/318:40:023
174256499147,4cyclictest0-21swapper/317:38:523
174256499142,7cyclictest0-21swapper/317:45:113
174256499137,4cyclictest0-21swapper/318:15:103
174256499136,4cyclictest0-21swapper/318:30:013
174256499136,4cyclictest0-21swapper/317:31:383
174256499136,4cyclictest0-21swapper/317:28:343
174256499136,4cyclictest0-21swapper/317:15:033
174256499136,4cyclictest0-21swapper/317:15:033
174256499127,3cyclictest0-21swapper/317:20:173
174256499127,3cyclictest0-21swapper/317:10:043
174256499126,4cyclictest0-21swapper/318:35:033
174256499126,4cyclictest0-21swapper/318:35:033
174256499126,3cyclictest0-21swapper/318:20:063
174256499116,3cyclictest0-21swapper/317:10:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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