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2026-01-14 - 16:53
[ 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 #3, slot #3

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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  TQ-Systems
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 100 highest latencies:
System rack3slot3s.osadl.org (updated Wed Jan 14, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2352490212567,54sleep30-21swapper/307:06:333
235253328252,9sleep20-21swapper/207:07:052
235274227964,9sleep10-21swapper/107:09:451
235263227960,13sleep00-21swapper/007:08:190
2352891993330,1cyclictest0-21swapper/310:39:593
25767612278,6sleep02576894-21grep10:45:110
26501502250,3sleep12650154-21latency_hist11:55:011
2352891992522,1cyclictest0-21swapper/310:05:013
2352891992522,1cyclictest0-21swapper/309:40:003
235289199251,19cyclictest2381138-21sleep07:35:013
24442922230,2sleep30-21swapper/308:32:103
2352891992318,2cyclictest0-21swapper/309:10:003
2352891992218,2cyclictest0-21swapper/312:10:013
2352891992117,2cyclictest0-21swapper/310:50:003
235289199202,13cyclictest2470983-21taskset09:00:123
2352891992017,1cyclictest0-21swapper/309:40:243
2352891992014,3cyclictest2465455-21sleep08:55:013
235289199201,14cyclictest0-21swapper/312:30:113
2352891991916,1cyclictest0-21swapper/312:20:183
2352891991916,1cyclictest0-21swapper/309:50:183
2352891991916,1cyclictest0-21swapper/308:40:003
2352891991916,1cyclictest0-21swapper/308:20:223
2352891991916,1cyclictest0-21swapper/308:20:223
2352891991916,1cyclictest0-21swapper/308:15:133
235289199191,14cyclictest0-21swapper/312:00:103
235289199191,14cyclictest0-21swapper/311:22:343
235289199182,8cyclictest2639796-21taskset11:45:013
235289199182,13cyclictest2634342-21turbostat11:40:003
2352891991815,1cyclictest0-21swapper/311:50:163
2352891991815,1cyclictest0-21swapper/310:50:153
2352891991815,1cyclictest0-21swapper/310:30:163
2352891991815,1cyclictest0-21swapper/310:30:153
2352891991815,1cyclictest0-21swapper/308:40:123
2352891991815,1cyclictest0-21swapper/308:15:013
2352891991815,1cyclictest0-21swapper/308:00:133
2352891991815,1cyclictest0-21swapper/307:20:213
235289199181,14cyclictest0-21swapper/310:05:193
235289199181,12cyclictest2671000-21sleep12:15:003
235289199180,14cyclictest0-21swapper/311:05:233
235289199172,11cyclictest2518821-21turbostat09:50:003
2352891991715,1cyclictest0-21swapper/311:30:153
2352891991715,1cyclictest0-21swapper/310:25:163
2352891991715,1cyclictest0-21swapper/307:15:123
2352891991715,1cyclictest0-21swapper/307:15:123
2352891991714,2cyclictest0-21swapper/311:30:013
2352891991714,1cyclictest0-21swapper/309:25:173
2352891991714,1cyclictest0-21swapper/309:25:163
235289199171,13cyclictest0-21swapper/312:15:193
235289199171,13cyclictest0-21swapper/311:15:203
2352891991711,3cyclictest0-21swapper/309:55:303
235289199171,13cyclictest0-21swapper/308:05:193
235289199171,10cyclictest2576626-21taskset10:45:013
25757882168,4sleep22575891-21timerandwakeup10:40:242
25616132161,10sleep02562955-21tr10:30:160
25616132161,10sleep02562955-21tr10:30:150
24119162161,10sleep12412056-21ntpq08:00:181
235289199167,6cyclictest2357964-21taskset07:13:473
235289199161,9cyclictest2434283-21taskset08:25:003
235289199161,9cyclictest2387459-21taskset07:40:123
2352891991613,1cyclictest0-21swapper/312:35:143
2352891991613,1cyclictest0-21swapper/309:15:163
2352891991613,1cyclictest0-21swapper/307:35:153
2352891991612,2cyclictest0-21swapper/311:14:593
2352891991611,3cyclictest0-21swapper/311:00:113
235289199161,13cyclictest0-21swapper/307:55:163
235289199161,12cyclictest2396988-21taskset07:45:283
235289199161,12cyclictest0-21swapper/312:25:103
235289199161,12cyclictest0-21swapper/310:55:153
235289199161,11cyclictest2502834-21turbostat09:35:003
235289199161,10cyclictest2655262-21taskset11:59:563
2352891991610,3cyclictest0-21swapper/311:50:003
2352891991610,3cyclictest0-21swapper/310:20:113
235289199160,10cyclictest2485745-21taskset09:10:223
25979012151,9sleep02598096-21expr11:05:150
24759562151,10sleep12475962-21cron09:04:591
24648132150,1sleep10-21swapper/108:50:251
24644882151,4sleep02464544-21ntp_states08:50:190
235289199152,9cyclictest2466226-21taskset08:55:143
235289199151,9cyclictest2545008-21taskset10:13:553
2352891991512,1cyclictest0-21swapper/310:15:193
235289199151,11cyclictest0-21swapper/309:20:153
235289199150,13cyclictest0-21swapper/308:45:193
235289199150,12cyclictest0-21swapper/307:25:133
23773162141,4sleep02379042-21tr07:30:160
235289199140,13cyclictest0-21swapper/307:50:153
25754942131,2sleep1171rcu_preempt10:40:181
25407022131,7sleep22542119-21kthreadcore10:10:172
24714842131,7sleep22471724-21grep09:00:162
24452862131,8sleep22445415-21kthreadcore08:35:142
24281622131,7sleep12423777-21/usr/sbin/munin08:15:261
23649962130,1sleep10-21swapper/107:15:501
23649962130,1sleep10-21swapper/107:15:491
26613092121,7sleep02661363-21kthreadcore12:05:150
26174112122,6sleep22617571-21strings11:20:152
26097532121,7sleep22611505-21kthreadcore11:15:152
26015622121,7sleep12601608-21/usr/sbin/munin11:05:201
25844672120,1sleep10-21swapper/110:50:161
25240362120,1sleep10-21swapper/109:54:571
24767742121,7sleep12476821-21kthreadcore09:05:161
24025812121,5sleep02402600-21munin-run07:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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