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2026-01-18 - 13:20
[ 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 #b, slot #5

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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  Phytec
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.

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 rackbslot5s.osadl.org (updated Sun Jan 18, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2988962994837,6cyclictest3059404-21runrttasks22:35:002
2988962994837,6cyclictest3059404-21runrttasks22:35:002
2988962994617,9cyclictest3054689-21ntp_states22:20:222
2988964994536,5cyclictest3060914-21cron22:40:003
2988964994536,5cyclictest3060914-21cron22:40:003
2988962994417,9cyclictest3008759-21/usr/sbin/munin20:05:142
2988957994436,4cyclictest3100072-21sendmail00:40:001
2988953994434,6cyclictest3013651-21cron20:20:010
2988962994321,9cyclictest3007163-21df20:00:152
2988962994318,6cyclictest3044287-21memory21:50:202
2988962994315,11cyclictest1-21systemd23:33:002
2988964994235,4cyclictest2998176-21kworker/u8:1+events_unbound19:37:133
2988962994234,4cyclictest629-21snmpd22:55:272
2988962994213,11cyclictest3097261-21date00:25:022
2988962994134,4cyclictest3100053-21munin-plugin-st00:40:002
2988962994114,10cyclictest3086225-21expr23:50:242
2988962994113,11cyclictest3075455-21cat23:20:192
2988957994130,7cyclictest3081656-21cron23:40:001
2988962994030,4cyclictest3033374-21apt-get21:20:142
2988957994025,12cyclictest231ktimers/121:05:101
2988957994025,12cyclictest231ktimers/121:05:091
2988964993933,4cyclictest3083073-21kworker/u8:0+events_unbound23:43:033
2988964993933,4cyclictest3039924-21kworker/u8:0+events_unbound21:47:423
2988964993932,5cyclictest3045189-21kworker/u8:0+events_unbound21:57:433
2988964993923,5cyclictest131rcu_preempt22:25:243
2988962993923,10cyclictest3042135-21apt-get21:45:132
2988962993921,10cyclictest311ktimers/219:30:122
2988957993931,5cyclictest3057304-21munin-plugin-st22:30:011
2988964993831,5cyclictest3004813-21kworker/u8:2+events_unbound19:52:163
2988964993824,6cyclictest3006572-21kworker/u8:1+events_unbound20:00:423
2988964993820,4cyclictest131rcu_preempt20:37:533
2988964993819,5cyclictest131rcu_preempt22:40:223
2988964993819,5cyclictest131rcu_preempt22:40:223
2988964993819,4cyclictest131rcu_preempt22:52:133
2988964993819,4cyclictest131rcu_preempt22:34:323
2988964993819,4cyclictest131rcu_preempt22:34:323
2988964993818,10cyclictest131rcu_preempt20:06:103
2988962993826,9cyclictest3036673-21cron21:29:012
2988962993825,10cyclictest3029217-21/usr/sbin/munin21:05:352
2988962993825,10cyclictest3029217-21/usr/sbin/munin21:05:352
2988962993824,10cyclictest3022124-21cron20:44:002
298895399385,7cyclictest131rcu_preempt19:40:130
2988964993727,6cyclictest3086305-21grep23:50:243
2988964993721,9cyclictest131rcu_preempt19:43:293
2988964993719,6cyclictest3093243-21kworker/u8:1+events_unbound00:11:193
2988964993717,9cyclictest131rcu_preempt22:01:023
2988962993729,4cyclictest3025860-21apt-get20:55:122
2988962993729,4cyclictest3025860-21apt-get20:55:112
2988962993727,6cyclictest0-21swapper/221:55:262
2988962993723,9cyclictest3082600-21/usr/sbin/munin23:40:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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