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2026-01-22 - 01:23
[ 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 376 highest latencies:
System rack2slot7s.osadl.org (updated Wed Jan 21, 2026 07:55:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2037331997060,6cyclictest2887182-21sh06:11:202
2037331997060,6cyclictest2887182-21sh06:11:202
2037331996432,24cyclictest2043615-21systemctl05:25:012
2037330996450,10cyclictest2860536-21sh06:10:111
2037330996450,10cyclictest2860536-21sh06:10:111
2037329996351,8cyclictest2886935-21sh06:11:190
2037329996351,8cyclictest2886935-21sh06:11:190
2037330996238,21cyclictest2856591-21multi.sh06:10:001
2037331995342,8cyclictest2267915-21tee05:40:002
2037331995322,28cyclictest2042020-21cron05:20:012
2037330995244,5cyclictest2345125-21sh05:43:231
2037330995237,12cyclictest2350903-21execl05:50:071
2037331995143,5cyclictest2936680-21ls06:40:002
2037330995142,5cyclictest2936683-21awk06:40:001
2037329995041,7cyclictest2294116-21sh05:41:150
2037331994938,7cyclictest2350600-21ntpq05:50:022
2037331994938,7cyclictest2350600-21ntpq05:50:022
203733099483,6cyclictest2932523-21ntpq06:25:071
203733099483,6cyclictest2932523-21ntpq06:25:071
2037329994840,5cyclictest2040091-21Run06:03:230
2037331994739,5cyclictest2856597-21rm06:10:002
2037331994739,5cyclictest2327003-21sh05:42:402
2037330994638,5cyclictest2349938-21execl05:50:041
2037330994638,5cyclictest2349938-21execl05:50:041
2037330994638,5cyclictest2043585-21munin-run05:25:011
2037329994639,4cyclictest2853408-21sort06:09:530
2037329994639,4cyclictest2351557-21fstime05:55:000
2037329994639,4cyclictest2349937-21execl05:50:020
2037329994639,4cyclictest2349937-21execl05:50:020
2037331994531,3cyclictest171rcu_preempt06:02:512
203733099452,33cyclictest2042249-21latency_hist05:20:031
2037330994428,13cyclictest2935131-21idleruntime-cro06:35:001
2037330994422,16cyclictest0-21swapper/106:23:141
2037329994438,4cyclictest2040173-21kworker/u8:2+xprtiod06:25:010
2037331994338,2cyclictest0-21swapper/205:15:002
2037331994236,3cyclictest0-21swapper/205:50:072
2037331994235,4cyclictest2230761-21idleruntime-cro05:35:002
203733099422,6cyclictest2929418-21ntpq06:15:041
203733099422,6cyclictest2038770-21ntpq05:10:001
203733099421,33cyclictest2351555-21fstime05:55:081
2037329994230,9cyclictest564-21dbus-daemon06:30:020
2037329994230,9cyclictest564-21dbus-daemon06:30:020
203733199411,33cyclictest2353885-21pipe06:00:002
2037329994134,4cyclictest2037347-21modprobe05:05:010
2037329994133,6cyclictest2265954-21/usr/sbin/munin05:39:520
203733099402,5cyclictest2045454-21ntpq05:30:071
2037330994023,14cyclictest2262575-21multi.sh05:39:381
203733099401,5cyclictest2043882-21ntpq05:25:041
2037329994031,6cyclictest2930606-21idleruntime-cro06:20:000
2037331993932,4cyclictest0-21swapper/206:25:012
2037330993933,3cyclictest0-21swapper/105:05:021
2037330993930,6cyclictest2502044-21spawn06:03:241
203733099391,6cyclictest2039073-21ntpq05:10:041
2037331993830,5cyclictest2933694-21ld06:30:012
2037331993830,5cyclictest2933694-21ld06:30:012
2037331993825,9cyclictest2045083-21missed_timers05:30:022
2037329993831,5cyclictest2936699-21idleruntime-cro06:40:000
2037329993830,5cyclictest564-21dbus-daemon05:15:010
2037331993730,4cyclictest1168-21mta-sts-daemon06:19:552
2037329993629,4cyclictest2231657-21latency_hist05:35:010
2037329993627,7cyclictest0-21swapper/006:35:010
203733199346,18cyclictest2935122-21latency_hist06:35:022
2037329993428,4cyclictest2043798-21ntpq05:25:030
2037329993419,12cyclictest2041644-21whetstone-doubl05:20:030
2037329993224,5cyclictest0-21swapper/005:10:010
2037329993223,7cyclictest2353234-21pipe05:59:430
2037331993111,6cyclictest36-21ksoftirqd/205:05:052
2037331993022,5cyclictest2037499-21wc05:05:022
2037329992617,7cyclictest151ktimers/005:25:080
203733299201,7cyclictest0-21swapper/305:25:083
203733299194,7cyclictest0-21swapper/306:10:093
203733299194,7cyclictest0-21swapper/306:10:093
203733299172,8cyclictest0-21swapper/306:30:023
203733299172,8cyclictest0-21swapper/306:30:023
203733299172,8cyclictest0-21swapper/305:25:013
203733299172,10cyclictest0-21swapper/306:00:033
203733299171,9cyclictest0-21swapper/305:50:033
203733299171,9cyclictest0-21swapper/305:50:033
203733299171,7cyclictest0-21swapper/305:15:053
203733299162,8cyclictest0-21swapper/306:05:573
203733299162,8cyclictest0-21swapper/306:00:043
203733299162,8cyclictest0-21swapper/305:40:053
203733299162,7cyclictest0-21swapper/305:35:053
203733299162,6cyclictest0-21swapper/306:35:023
203733299162,10cyclictest0-21swapper/305:50:083
203733299161,7cyclictest0-21swapper/306:22:103
203733299142,8cyclictest0-21swapper/305:10:013
203733299142,7cyclictest0-21swapper/305:05:013
203733299142,5cyclictest0-21swapper/306:40:023
203733299132,6cyclictest0-21swapper/306:20:023
203733299131,7cyclictest0-21swapper/305:35:023
20373329994,3cyclictest0-21swapper/305:14:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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