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2026-06-02 - 21:07

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 Tue Jun 02, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2394464995241,7cyclictest2448468-21grep09:40:243
2394457995241,7cyclictest2413324-21grep08:00:271
2394457995042,5cyclictest2436780-21idleruntime-cro09:10:001
2394464994935,10cyclictest391ktimers/308:55:143
2394464994935,10cyclictest391ktimers/308:55:133
2394464994934,11cyclictest391ktimers/312:25:093
2394457994836,8cyclictest2448457-21grep09:40:251
2394461994738,5cyclictest2419068-21cron08:20:002
2394457994736,8cyclictest231ktimers/108:25:141
2394452994740,4cyclictest0-21swapper/007:55:130
2394461994639,4cyclictest2500711-21cron12:15:002
2394452994534,7cyclictest2468096-21auditctl10:40:000
2394461994336,4cyclictest2505843-21apt12:30:002
2394461994235,4cyclictest0-21swapper/210:00:012
2394457994233,6cyclictest2474927-21cut11:00:001
2394461994134,4cyclictest2431242-21munin-plugin-st08:55:012
2394457994034,4cyclictest2453942-21kworker/u8:0+events_unbound10:15:171
2394457994034,4cyclictest2412403-21kworker/u8:1+events_unbound08:09:481
2394457994029,7cyclictest2502448-21sendmail12:20:001
2394452994032,5cyclictest2488131-21unixbench_singl11:35:270
2394452993931,4cyclictest2504137-21cron12:24:590
2394452993928,7cyclictest2449327-21grep09:45:160
2394464993830,4cyclictest0-21swapper/307:10:173
2394461993828,6cyclictest2503687-21unixbench_multi12:20:252
2394461993827,7cyclictest0-21swapper/209:00:162
2394457993830,4cyclictest2454065-21kworker/u8:010:00:001
2394457993829,5cyclictest0-21swapper/111:15:011
2394457993829,4cyclictest0-21swapper/110:45:011
2394461993728,6cyclictest2450214-21unixbench_singl09:45:252
2394461993727,6cyclictest0-21swapper/209:05:252
2394457993728,5cyclictest0-21swapper/112:30:281
2394457993728,5cyclictest0-21swapper/109:05:001
2394464993628,4cyclictest0-21swapper/309:50:243
2394464993627,4cyclictest0-21swapper/308:05:003
2394461993627,6cyclictest0-21swapper/211:50:012
2394457993629,5cyclictest2438283-21kworker/u8:1+events_unbound09:20:041
2394457993628,5cyclictest2488573-21grep11:40:001
2394457993624,5cyclictest131rcu_preempt12:00:161
2394457993610,7cyclictest24-21ksoftirqd/109:50:121
2394452993629,3cyclictest0-21swapper/011:30:150
2394452993627,5cyclictest2469807-21cron10:45:010
2394464993527,4cyclictest0-21swapper/309:55:273
2394464993526,4cyclictest0-21swapper/309:00:173
2394461993525,5cyclictest0-21swapper/209:40:242
2394457993526,5cyclictest0-21swapper/108:25:001
2394457993526,5cyclictest0-21swapper/108:25:001
2394457993519,5cyclictest131rcu_preempt08:55:021
2394457993519,5cyclictest131rcu_preempt08:55:021
2394457993519,3cyclictest131rcu_preempt11:06:111
2394452993529,4cyclictest2443634-21latency_hist09:30:010
2394452993527,6cyclictest2453942-21kworker/u8:0+events_unbound10:30:180
2394452993525,7cyclictest2424314-21apt-config08:35:000
2394464993427,4cyclictest2419071-21cron08:20:013
2394461993427,4cyclictest0-21swapper/212:00:262
2394461993426,5cyclictest2457875-21ls10:10:002
2394461993425,5cyclictest0-21swapper/210:55:012
2394461993423,7cyclictest0-21swapper/208:35:252
2394457993428,4cyclictest2479931-21kworker/u8:1+events_unbound11:17:411
2394457993424,5cyclictest2439699-21grep09:15:271
2394457993418,5cyclictest131rcu_preempt07:40:291
2394457993416,3cyclictest0-21swapper/112:37:221
2394457993416,3cyclictest0-21swapper/112:37:221
2394452993426,4cyclictest0-21swapper/009:20:010
2394452993425,4cyclictest0-21swapper/010:00:000
2394452993424,6cyclictest2427399-21grep08:40:270
2394464993327,4cyclictest2483462-21auditctl11:25:003
2394464993325,5cyclictest391ktimers/312:20:113
2394461993326,3cyclictest0-21swapper/209:20:002
2394461993323,6cyclictest0-21swapper/208:30:252
2394457993326,4cyclictest0-21swapper/112:10:151
2394457993325,4cyclictest0-21swapper/109:30:001
2394457993324,6cyclictest2417364-21cron08:15:011
2394457993324,5cyclictest0-21swapper/107:45:231
2394457993323,3cyclictest131rcu_preempt10:30:141
2394457993322,7cyclictest2498581-21grep12:05:261
2394457993322,4cyclictest131rcu_preempt10:08:521
2394457993321,8cyclictest2430809-21grep08:50:261
2394457993317,3cyclictest131rcu_preempt11:33:351
2394457993315,5cyclictest131rcu_preempt09:30:071
239445299332,5cyclictest131rcu_preempt07:20:120
2394452993325,5cyclictest2422489-21cron08:30:000
2394452993325,4cyclictest0-21swapper/012:35:260
2394452993325,4cyclictest0-21swapper/012:35:260
2394452993323,6cyclictest0-21swapper/011:15:260
2394452993323,4cyclictest0-21swapper/009:30:180
239445299330,30cyclictest0-21swapper/010:00:120
2394464993226,4cyclictest2468063-21kworker/u8:0+events_unbound10:40:163
2394464993224,4cyclictest0-21swapper/310:55:273
2394461993224,4cyclictest0-21swapper/207:20:012
2394461993222,6cyclictest0-21swapper/210:25:262
2394461993222,6cyclictest0-21swapper/208:00:012
2394461993222,6cyclictest0-21swapper/207:30:172
2394461993222,6cyclictest0-21swapper/207:30:172
239445799325,15cyclictest24-21ksoftirqd/107:25:021
2394457993223,5cyclictest0-21swapper/111:20:261
2394457993218,5cyclictest131rcu_preempt08:42:031
2394457993217,5cyclictest131rcu_preempt09:35:251
2394457993217,4cyclictest131rcu_preempt10:52:401
239445799320,18cyclictest2403511-21cron07:35:001
239445799320,18cyclictest2403511-21cron07:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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