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2026-02-20 - 07:07
[ 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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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 rackbslot5s.osadl.org (updated Fri Feb 20, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2339912995338,10cyclictest2424409-21grep23:10:263
2339899994942,4cyclictest2436445-21unixbench_singl23:45:270
2339899994841,4cyclictest2435155-21cron23:45:000
2339908994637,6cyclictest2399028-21sendmail22:00:002
2339903994433,7cyclictest2364596-21sendmail20:20:011
2339908994336,5cyclictest2386705-21kworker/u8:0+events_unbound21:37:552
2339908994332,7cyclictest2345823-21apt-config19:25:012
2339908994236,4cyclictest2364209-21kworker/u8:1+events_unbound20:17:342
2339908994231,7cyclictest2433000-21grep23:35:252
2339912994130,7cyclictest2442429-21sh00:05:003
2339912994130,7cyclictest2440651-21latency_hist00:00:013
2339908994032,4cyclictest2438568-21cron23:55:002
2339908994031,6cyclictest311ktimers/221:05:122
2339903993930,6cyclictest2454400-21munin-plugin-st00:40:011
2339903993930,6cyclictest2454400-21munin-plugin-st00:40:001
2339899993932,4cyclictest2362860-21cron20:15:010
2339912993829,6cyclictest2429554-21grep23:25:253
2339912993829,5cyclictest2412723-21sendmail22:40:003
2339908993831,5cyclictest2339535-21kworker/u8:1+events_unbound19:12:242
2339903993831,4cyclictest2404154-21munin-plugin-st22:15:001
2339903993830,5cyclictest2378252-21cron21:00:001
2339903993827,8cyclictest2437497-21runrttasks23:50:211
2339912993727,6cyclictest0-21swapper/321:40:013
2339903993729,5cyclictest2421469-21cron23:05:011
2339899993726,7cyclictest2357250-21grep19:55:250
2339903993627,6cyclictest0-21swapper/100:35:001
2339903993627,6cyclictest0-21swapper/100:35:001
2339912993527,4cyclictest0-21swapper/322:25:253
2339912993526,4cyclictest0-21swapper/322:05:263
2339912993525,6cyclictest0-21swapper/320:45:263
2339912993525,5cyclictest0-21swapper/323:53:103
2339912993523,7cyclictest0-21swapper/319:50:263
2339908993526,5cyclictest0-21swapper/222:05:262
2339903993527,5cyclictest2426589-21cron23:20:001
2339903993527,4cyclictest0-21swapper/120:00:011
2339903993525,6cyclictest0-21swapper/121:05:011
2339903993523,8cyclictest2344305-21fschecks_time19:20:161
2339899993528,4cyclictest2345556-21cron19:25:010
2339899993527,4cyclictest2427008-21fschecks_count23:20:150
2339899993526,6cyclictest2420147-21fschecks_count23:00:190
233991299348,7cyclictest40-21ksoftirqd/322:15:003
2339912993426,4cyclictest0-21swapper/321:50:163
2339912993423,7cyclictest2372668-21grep20:40:293
2339912993422,7cyclictest0-21swapper/322:15:253
233990899345,5cyclictest131rcu_preempt21:20:132
233990899345,5cyclictest131rcu_preempt21:20:122
2339908993428,4cyclictest2371191-21kworker/u8:2+events_unbound20:37:402
2339903993427,4cyclictest0-21swapper/123:10:001
2339903993423,7cyclictest0-21swapper/119:50:251
2339899993425,6cyclictest0-21swapper/022:53:050
2339912993323,6cyclictest0-21swapper/321:40:153
2339899993326,4cyclictest2419761-21grep23:00:000
2339899993324,6cyclictest0-21swapper/021:35:260
2339899993323,7cyclictest0-21swapper/000:40:000
2339899993323,7cyclictest0-21swapper/000:40:000
2339899993316,14cyclictest121ktimers/021:40:220
2339912993225,3cyclictest0-21swapper/300:05:263
2339912993223,4cyclictest0-21swapper/300:30:163
2339912993223,4cyclictest0-21swapper/300:30:163
2339912993220,8cyclictest2345126-21grep19:20:253
2339908993224,4cyclictest0-21swapper/219:40:002
2339908993220,4cyclictest131rcu_preempt19:40:162
2339903993227,3cyclictest2414434-21munin-plugin-st22:45:001
2339903993226,4cyclictest2402211-21kworker/u8:1+events_unbound22:07:571
2339903993225,4cyclictest2433444-21cron23:40:001
2339903993224,4cyclictest0-21swapper/122:20:161
2339903993224,4cyclictest0-21swapper/120:15:011
2339899993226,3cyclictest0-21swapper/020:30:010
2339899993225,4cyclictest2369725-21munin-plugin-st20:35:010
2339899993225,4cyclictest2349186-21auditctl19:35:000
2339899993224,4cyclictest0-21swapper/023:38:090
2339899993223,5cyclictest0-21swapper/021:50:260
2339899993214,14cyclictest0-21swapper/021:15:010
233991299316,7cyclictest40-21ksoftirqd/320:20:223
2339912993122,5cyclictest0-21swapper/320:55:003
2339912993121,7cyclictest391ktimers/320:00:173
2339912993119,8cyclictest0-21swapper/320:40:003
2339912993110,7cyclictest40-21ksoftirqd/323:50:003
2339908993124,5cyclictest2392120-21kworker/u8:1+events_unbound21:40:122
2339908993124,4cyclictest2390456-21cron21:35:012
2339908993123,4cyclictest0-21swapper/219:55:262
2339908993120,9cyclictest311ktimers/223:05:122
2339903993124,4cyclictest0-21swapper/122:20:001
2339903993124,3cyclictest0-21swapper/100:20:011
2339899993124,3cyclictest0-21swapper/019:15:260
2339899993121,6cyclictest0-21swapper/022:30:250
2339899993121,6cyclictest0-21swapper/000:00:000
2339912993023,4cyclictest0-21swapper/321:45:263
2339912993022,5cyclictest0-21swapper/323:15:263
2339912993022,4cyclictest0-21swapper/322:00:253
2339912993021,5cyclictest0-21swapper/321:25:003
2339912993021,5cyclictest0-21swapper/321:25:003
2339912993020,7cyclictest391ktimers/322:47:413
2339912993020,6cyclictest2419284-21unixbench_multi22:55:263
2339912993013,4cyclictest131rcu_preempt19:37:263
2339912993012,10cyclictest131rcu_preempt19:31:563
233991299301,11cyclictest23633362fschecks_time20:15:203
2339908993025,3cyclictest2339891-21cyclictest22:34:272
2339908993023,4cyclictest2382090-21fschecks_count21:10:172
2339908993023,4cyclictest2376125-21grep20:50:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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