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2026-07-09 - 04:24

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 100 highest latencies:
System rackbslot5s.osadl.org (updated Thu Jul 09, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3159935995647,5cyclictest3184077-21unixbench_multi20:15:243
3159935995137,10cyclictest391ktimers/320:00:133
3159931995038,9cyclictest3271582-21grep00:30:252
3159924994937,7cyclictest3186257-21cron20:25:010
3159929994738,6cyclictest3181348-21fschecks_time20:10:161
3159931994634,8cyclictest311ktimers/220:50:132
3159929994635,8cyclictest3229127-21idleruntime-cro22:30:011
3159924994537,4cyclictest3263467-21idleruntime-cro00:10:000
3159924994434,6cyclictest3210344-21cron21:34:590
3159935994333,6cyclictest3271580-21unixbench_singl00:30:243
3159935994328,11cyclictest391ktimers/322:40:133
3159931994235,4cyclictest3217165-21cron21:55:002
3159931994235,4cyclictest3179228-21idleruntime-cro20:05:012
3159929994029,8cyclictest3201826-21cron21:10:011
3159935993930,5cyclictest3205233-21cron21:20:013
3159929993926,9cyclictest0-21swapper/123:59:591
3159924993932,4cyclictest3198101-21kworker/u8:1+events_unbound21:06:060
3159935993825,10cyclictest391ktimers/323:00:123
3159929993831,4cyclictest3254911-21cron23:45:001
3159929993828,8cyclictest0-21swapper/119:15:121
3159924993831,4cyclictest0-21swapper/021:45:000
3159924993831,4cyclictest0-21swapper/021:45:000
3159924993828,7cyclictest3256152-21grep23:45:260
3159924993826,7cyclictest3204747-21grep21:15:260
3159931993730,4cyclictest3182641-21cut20:15:002
3159929993730,4cyclictest3184571-21idleruntime-cro20:20:011
3159929993727,7cyclictest0-21swapper/121:35:001
3159935993621,11cyclictest391ktimers/320:35:123
3159931993629,4cyclictest3225689-21cron22:20:012
3159931993628,5cyclictest3248092-21cron23:25:002
3159929993628,4cyclictest0-21swapper/121:46:141
3159929993627,6cyclictest0-21swapper/123:00:251
3159929993625,7cyclictest3170682-21sh19:40:011
3159924993630,4cyclictest3186059-21kworker/u8:1+events_unbound20:36:010
3159924993626,7cyclictest3208186-21grep21:25:230
3159935993527,4cyclictest0-21swapper/321:49:593
3159935993527,4cyclictest0-21swapper/321:35:153
3159935993527,4cyclictest0-21swapper/321:35:153
3159931993527,5cyclictest3200112-21cron21:05:012
3159931993527,5cyclictest3163868-21cron19:20:002
3159931993524,8cyclictest3212077-21sendmail21:39:592
3159931993524,8cyclictest3212077-21sendmail21:39:592
3159929993526,5cyclictest0-21swapper/122:35:001
3159929993525,7cyclictest3271518-21grep00:30:251
3159929993525,6cyclictest0-21swapper/121:55:001
3159929993525,6cyclictest0-21swapper/119:50:241
3159929993524,7cyclictest0-21swapper/119:15:021
3159924993529,4cyclictest3248081-21kworker/u8:1+events_unbound23:35:410
3159935993427,4cyclictest3174106-21auditctl19:50:013
3159935993424,6cyclictest0-21swapper/321:00:003
3159931993424,6cyclictest0-21swapper/221:20:262
3159931993423,6cyclictest0-21swapper/223:30:252
3159929993428,4cyclictest3270294-21cron00:30:011
3159929993425,6cyclictest0-21swapper/123:55:001
3159935993325,5cyclictest3273868-21apt-config00:40:003
3159935993325,4cyclictest0-21swapper/319:40:003
3159935993324,4cyclictest0-21swapper/323:26:333
3159931993323,7cyclictest0-21swapper/222:10:012
3159931993323,6cyclictest0-21swapper/219:50:002
3159931993322,7cyclictest0-21swapper/223:26:322
3159929993325,4cyclictest0-21swapper/120:30:271
3159929993324,6cyclictest0-21swapper/122:45:001
3159924993324,7cyclictest121ktimers/019:40:120
3159924993323,4cyclictest0-21swapper/022:40:000
3159924993321,7cyclictest0-21swapper/019:10:260
3159935993224,4cyclictest0-21swapper/323:52:573
3159935993224,4cyclictest0-21swapper/300:25:163
3159935993222,7cyclictest438-21cron23:25:013
3159935993219,9cyclictest391ktimers/319:20:123
3159931993225,4cyclictest0-21swapper/223:00:002
3159931993224,4cyclictest0-21swapper/200:10:232
3159931993222,7cyclictest3244667-21cron23:15:012
3159931993222,6cyclictest0-21swapper/222:50:262
3159931993222,6cyclictest0-21swapper/220:05:262
3159931993222,6cyclictest0-21swapper/219:55:152
3159931993221,7cyclictest0-21swapper/219:40:252
3159931993221,7cyclictest0-21swapper/219:10:262
3159931993221,6cyclictest0-21swapper/223:45:252
3159931993221,6cyclictest0-21swapper/219:30:262
3159929993223,6cyclictest3166014-21tune2fs19:25:141
3159929993223,6cyclictest0-21swapper/100:20:011
3159924993224,4cyclictest0-21swapper/021:45:250
3159924993224,4cyclictest0-21swapper/000:25:010
3159924993221,7cyclictest3226996-21grep22:20:250
3159935993123,5cyclictest3226935-21unixbench_multi22:20:233
3159935993119,7cyclictest0-21swapper/322:20:003
3159935993119,7cyclictest0-21swapper/320:50:263
3159931993125,4cyclictest3256468-21kworker/u8:3+events_unbound23:58:162
3159931993124,4cyclictest0-21swapper/222:20:152
3159929993123,5cyclictest0-21swapper/123:10:001
3159929993123,4cyclictest0-21swapper/119:40:161
3159929993122,6cyclictest0-21swapper/100:00:161
3159929993122,6cyclictest0-21swapper/100:00:151
3159929993121,6cyclictest0-21swapper/100:10:241
3159929993118,9cyclictest231ktimers/121:40:101
3159929993118,9cyclictest231ktimers/121:40:101
3159924993125,4cyclictest3218847-21kworker/u8:2+events_unbound22:31:220
3159924993124,4cyclictest3225703-21munin-plugin-st22:20:000
3159924993124,4cyclictest0-21swapper/023:20:000
3159924993123,4cyclictest3167280-21cron19:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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