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2026-07-15 - 09:54

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 Wed Jul 15, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2372488995340,9cyclictest311ktimers/222:05:152
2372482994737,6cyclictest2452517-21munin-plugin-st23:00:001
2372490994538,4cyclictest2393888-21latency_hist20:10:013
2372482994534,7cyclictest2445039-21grep22:35:241
2372477994536,6cyclictest2404103-21cron20:40:000
2372482994434,6cyclictest2441610-21grep22:25:271
2372488994336,4cyclictest2461059-21cron23:25:002
2372490994235,4cyclictest2431847-21sendmail22:00:013
2372490994235,4cyclictest2376612-21cron19:20:013
2372488994130,6cyclictest0-21swapper/200:15:292
2372490994028,7cyclictest0-21swapper/323:50:003
2372490994028,7cyclictest0-21swapper/320:20:013
2372490994025,10cyclictest2446244-21if_eth122:40:173
2372482994027,9cyclictest2416157-21sshd21:11:091
2372477994031,6cyclictest2404761-21fschecks_time20:40:170
2372477994031,6cyclictest2404761-21fschecks_time20:40:170
2372490993929,7cyclictest2404118-21idleruntime-cro20:40:003
2372488993927,8cyclictest0-21swapper/221:35:012
2372482993931,4cyclictest0-21swapper/119:25:021
2372477993930,6cyclictest2477027-21fschecks_time00:10:160
2372477993928,7cyclictest0-21swapper/019:15:010
2372488993828,6cyclictest2474911-21cron00:05:002
2372488993824,10cyclictest311ktimers/200:20:112
2372477993831,4cyclictest2462762-21cut23:30:010
2372477993825,9cyclictest121ktimers/021:35:140
2372477993825,9cyclictest121ktimers/021:35:130
2372490993723,10cyclictest0-21swapper/322:40:013
2372482993724,9cyclictest0-21swapper/100:15:011
2372477993727,7cyclictest2445492-21sendmail22:40:000
2372477993727,6cyclictest2451255-21fschecks_time22:55:170
2372488993628,5cyclictest0-21swapper/220:00:012
2372488993627,5cyclictest2432243-21fschecks_count22:00:162
2372488993625,7cyclictest2414317-21grep21:05:262
2372488993625,6cyclictest0-21swapper/219:30:152
2372477993629,4cyclictest2397288-21apt20:20:000
2372490993527,4cyclictest0-21swapper/319:55:173
2372490993526,6cyclictest0-21swapper/321:00:003
2372490993524,7cyclictest2471061-21grep23:50:253
2372490993524,7cyclictest2391774-21grep20:00:273
2372488993528,3cyclictest0-21swapper/200:30:252
2372488993524,7cyclictest2436474-21grep22:10:272
2372482993527,4cyclictest0-21swapper/119:15:011
2372482993522,9cyclictest2438233-21grep22:15:271
2372477993527,4cyclictest0-21swapper/023:50:000
2372477993525,6cyclictest0-21swapper/023:15:260
2372490993426,4cyclictest0-21swapper/322:10:273
2372488993427,4cyclictest2466170-21idleruntime-cro23:40:012
2372482993424,7cyclictest0-21swapper/100:05:281
2372482993422,8cyclictest2398591-21grep20:20:261
2372477993426,4cyclictest0-21swapper/021:30:000
2372477993424,6cyclictest0-21swapper/022:31:340
2372477993424,6cyclictest0-21swapper/022:20:250
2372477993423,6cyclictest0-21swapper/019:45:270
2372477993421,9cyclictest0-21swapper/021:55:160
2372490993325,4cyclictest0-21swapper/323:40:233
2372490993322,8cyclictest2416931-21fschecks_time21:15:173
2372488993326,4cyclictest2431827-21sh22:00:012
2372488993324,4cyclictest0-21swapper/200:37:002
2372488993323,6cyclictest2388139-21grep19:50:262
2372488993320,7cyclictest2374466-21munin-node19:15:012
2372482993324,5cyclictest2473201-21sendmail00:00:001
2372482993323,5cyclictest0-21swapper/120:36:001
2372477993326,4cyclictest2395583-21apt20:15:010
2372477993324,6cyclictest2382099-21fschecks_count19:35:160
2372477993324,5cyclictest0-21swapper/023:05:260
2372477993323,6cyclictest0-21swapper/022:25:260
2372477993323,6cyclictest0-21swapper/000:40:000
2372490993225,3cyclictest0-21swapper/323:25:273
2372490993223,6cyclictest2418669-21grep21:20:173
2372490993223,6cyclictest0-21swapper/319:45:003
2372488993225,3cyclictest0-21swapper/221:20:262
2372488993220,8cyclictest2483428-21cron00:30:002
2372482993226,4cyclictest2436822-21kworker/u8:1+events_unbound22:21:341
2372482993224,4cyclictest0-21swapper/123:20:161
2372482993224,4cyclictest0-21swapper/121:25:261
2372477993225,4cyclictest2450342-21unixbench_multi22:50:270
2372477993223,6cyclictest0-21swapper/020:55:010
2372477993223,6cyclictest0-21swapper/019:50:270
2372477993223,5cyclictest0-21swapper/023:55:250
2372477993223,5cyclictest0-21swapper/023:30:270
2372477993223,5cyclictest0-21swapper/023:10:280
2372477993222,6cyclictest0-21swapper/019:55:270
2372490993124,4cyclictest0-21swapper/300:05:273
2372490993123,4cyclictest0-21swapper/323:00:263
2372490993123,4cyclictest0-21swapper/322:50:273
2372490993123,4cyclictest0-21swapper/322:35:013
2372490993122,6cyclictest0-21swapper/321:40:273
2372490993120,7cyclictest2399002-21sh20:25:003
2372488993124,3cyclictest0-21swapper/221:10:272
2372488993123,4cyclictest0-21swapper/223:45:252
2372488993123,4cyclictest0-21swapper/220:15:162
2372488993122,5cyclictest0-21swapper/223:05:002
2372488993121,6cyclictest2407309-21grep20:45:252
2372482993124,4cyclictest2469579-21kthreadd23:50:011
2372482993123,4cyclictest0-21swapper/123:25:261
2372477993123,4cyclictest0-21swapper/000:35:000
2372477993121,6cyclictest0-21swapper/020:10:010
2372477993118,4cyclictest131rcu_preempt20:28:510
2372490993023,4cyclictest0-21swapper/319:20:263
2372490993023,3cyclictest0-21swapper/300:05:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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