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2026-02-25 - 20:34
[ 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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Wed Feb 25, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1458721180,4sleep20-21swapper/210:21:312
1458721180,4sleep20-21swapper/210:21:312
3232921060,1sleep00-21swapper/011:11:140
3232921060,1sleep00-21swapper/011:11:140
1071321030,3sleep00-21swapper/011:36:340
1071321030,3sleep00-21swapper/011:36:340
1071321030,3sleep00-21swapper/011:36:340
111721020,7sleep0142-21systemd-journal11:11:340
111721020,7sleep0142-21systemd-journal11:11:340
213382920,3sleep20-21swapper/212:06:272
213382920,3sleep20-21swapper/212:06:272
72042660,2sleep07208-21tail08:36:250
72042660,2sleep07208-21tail08:36:250
72042660,2sleep07208-21tail08:36:250
103722650,5sleep20-21swapper/211:36:322
103722650,5sleep20-21swapper/211:36:322
103722650,5sleep20-21swapper/211:36:322
100102650,1chrt0-21swapper/010:11:200
100102650,1chrt0-21swapper/010:11:200
271872640,3chrt0-21swapper/208:01:332
271872640,3chrt0-21swapper/208:01:332
146022620,3chrt0-21swapper/208:56:252
146022620,3chrt0-21swapper/208:56:252
14212600,2chrt0-21swapper/209:46:302
14212600,2chrt0-21swapper/209:46:302
313272570,3sleep20-21swapper/209:41:232
327442550,3chrt0-21swapper/208:16:332
327442550,3chrt0-21swapper/208:16:332
327442550,3chrt0-21swapper/208:16:332
249222530,4chrt0-21swapper/207:56:272
249222530,4chrt0-21swapper/207:56:272
38272490,3sleep20-21swapper/211:21:212
38272490,3sleep20-21swapper/211:21:212
12012480,2chrt0-21swapper/112:41:111
12012480,2chrt0-21swapper/112:41:111
87862420,2sleep18859-21strings10:06:271
87862420,2sleep18859-21strings10:06:271
158432420,3chrt0-21swapper/211:51:322
158432420,3chrt0-21swapper/211:51:322
131382400,3chrt0-21swapper/007:26:220
7736993932,5cyclictest201rcuc/008:08:290
7736993932,5cyclictest201rcuc/008:08:290
37692390,3sleep00-21swapper/008:26:280
37692390,3sleep00-21swapper/008:26:280
83972380,3sleep20-21swapper/210:06:232
83972380,3sleep20-21swapper/210:06:232
7736993817,4cyclictest201rcuc/008:13:590
7736993527,6cyclictest23248-21netstat12:11:280
190022350,2sleep0201rcuc/007:41:250
190022350,2sleep0201rcuc/007:41:250
304022340,2sleep00-21swapper/011:06:110
304022340,2sleep00-21swapper/011:06:110
7736993326,4cyclictest171ktimers/010:53:190
7736993326,4cyclictest171ktimers/010:53:190
7736993326,4cyclictest171ktimers/010:53:190
7736993325,6cyclictest7734-21cyclictest09:46:340
7736993325,6cyclictest7734-21cyclictest09:46:340
7736993325,6cyclictest23146-21netstat07:51:290
111332330,2sleep00-21swapper/010:11:330
111332330,2sleep00-21swapper/010:11:330
7742993226,4cyclictest2712-21ntp_offset11:16:291
7742993226,4cyclictest2712-21ntp_offset11:16:291
7742993223,7cyclictest5251-21fschecks_time08:31:221
7742993221,9cyclictest6223-21kernelversion11:26:251
7736993225,5cyclictest201rcuc/012:04:330
7736993225,5cyclictest201rcuc/012:04:330
7736993224,6cyclictest15451-21timerwakeupswit08:56:340
7736993224,6cyclictest15451-21timerwakeupswit08:56:340
7736993213,4cyclictest181rcu_preempt08:25:510
7742993124,5cyclictest21392-21processes07:46:341
7742993124,5cyclictest21392-21processes07:46:341
7742993123,6cyclictest11774-21latency07:21:271
773699317,5cyclictest171ktimers/007:34:330
773699317,4cyclictest181rcu_preempt12:28:380
773699317,4cyclictest181rcu_preempt12:28:380
7736993124,5cyclictest7734-21cyclictest07:18:310
7736993124,5cyclictest26846-21needreboot08:01:290
7736993124,5cyclictest26846-21needreboot08:01:290
7736993122,7cyclictest2680-21netstat11:16:290
7736993122,7cyclictest2680-21netstat11:16:290
7736993121,8cyclictest31718-21kernelversion09:41:270
7736993121,8cyclictest31718-21kernelversion09:41:270
7736993121,8cyclictest31718-21kernelversion09:41:270
773699311,5cyclictest171ktimers/007:49:580
773699311,5cyclictest171ktimers/007:49:580
7012310,2sleep20-21swapper/211:11:282
7012310,2sleep20-21swapper/211:11:282
126162310,2sleep20-21swapper/208:51:222
7746993026,2cyclictest0-21swapper/209:44:422
7746993026,2cyclictest0-21swapper/209:44:422
7746993026,2cyclictest0-21swapper/209:44:422
7742993026,3cyclictest19561-21ntp_offset12:01:301
7742993026,3cyclictest19561-21ntp_offset12:01:301
7742993025,3cyclictest7734-21cyclictest11:36:311
7742993025,3cyclictest7734-21cyclictest11:36:311
7742993025,3cyclictest7734-21cyclictest11:36:311
7742993021,7cyclictest21177-21latency_hist10:41:171
7742993021,7cyclictest21177-21latency_hist10:41:171
7742993021,7cyclictest21177-21latency_hist10:41:171
7736993025,4cyclictest201rcuc/011:42:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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