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2025-12-12 - 22:08

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 Fri Dec 12, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2230355995325,23cyclictest0-21swapper/321:25:283
2230355995126,21cyclictest0-21swapper/319:15:013
2230355995025,21cyclictest0-21swapper/319:20:183
2230355994921,24cyclictest2324468-21munin-run23:40:013
2230355994825,20cyclictest0-21swapper/322:20:003
2230355994825,18cyclictest0-21swapper/323:00:293
2230344994840,5cyclictest2296138-21unixbench_singl22:15:310
2230355994718,26cyclictest0-21swapper/321:00:233
2230355994718,24cyclictest0-21swapper/320:55:273
223034999471,43cyclictest231ktimers/121:00:141
2230344994538,5cyclictest2277525-21kworker/u8:1+events_unbound21:27:500
2230344994537,5cyclictest2338129-21idleruntime-cro00:20:000
2230355994423,16cyclictest0-21swapper/322:58:073
2230355994423,16cyclictest0-21swapper/322:58:073
223034499441,8cyclictest11-21ksoftirqd/019:15:130
2230355994332,7cyclictest2277575-21cron21:25:003
2230344994333,7cyclictest2261994-21sh20:40:010
2230344994332,8cyclictest2317665-21sendmail23:20:000
2230344994312,6cyclictest131rcu_preempt22:40:130
2230355994217,21cyclictest0-21swapper/321:15:283
2230355994215,3cyclictest0-21swapper/320:30:253
2230344994234,4cyclictest2331311-21sendmail00:00:010
223035599415,7cyclictest2344926-21cron00:39:593
2230355994122,15cyclictest2263238-21unixbench_multi20:40:263
2230355994121,17cyclictest0-21swapper/323:20:303
2230355994117,20cyclictest0-21swapper/323:45:263
2230355994116,22cyclictest391ktimers/323:50:143
2230355994114,3cyclictest2232288-21munin-node21:45:123
2230355994112,3cyclictest0-21swapper/320:35:273
2230349994133,4cyclictest2312338-21munin-plugin-st23:05:011
2230355994029,6cyclictest0-21swapper/300:20:003
2230355994025,11cyclictest391ktimers/300:10:153
2230355994015,22cyclictest0-21swapper/322:45:233
2230355994012,3cyclictest2314624-21fschecks_count23:10:193
2230349994032,4cyclictest0-21swapper/100:00:001
2230344994031,6cyclictest2259813-21grep20:30:270
2230344994028,9cyclictest121ktimers/021:20:160
2230352993927,9cyclictest311ktimers/222:15:152
2230344993923,6cyclictest2314103-21kworker/u8:2+events_unbound23:12:290
223035599389,5cyclictest0-21swapper/320:50:183
223035599388,7cyclictest2257739-21pluginstate20:25:253
2230355993827,7cyclictest0-21swapper/321:45:003
2230355993812,3cyclictest2272901-21fschecks_time21:10:163
223035599381,12cyclictest2308230-21tail22:50:293
2230352993830,4cyclictest2314249-21idleruntime-cro23:10:002
2230352993825,9cyclictest2237695-21sshd19:27:272
223035599379,6cyclictest2292516-21date22:05:293
223035599378,5cyclictest0-21swapper/319:40:183
2230355993715,3cyclictest0-21swapper/300:20:273
2230355993713,5cyclictest0-21swapper/320:20:003
223035599371,11cyclictest2250060-21cron20:05:003
223035599371,11cyclictest2250060-21cron20:05:003
2230349993727,7cyclictest0-21swapper/119:20:001
2230349993725,9cyclictest231ktimers/100:30:161
2230344993723,10cyclictest151rcuc/022:55:130
2230344993723,10cyclictest151rcuc/022:55:130
2230344993721,4cyclictest131rcu_preempt00:35:140
223034499371,8cyclictest11-21ksoftirqd/021:40:140
2230355993626,6cyclictest0-21swapper/319:15:283
2230355993612,3cyclictest0-21swapper/319:25:243
2230352993627,4cyclictest0-21swapper/222:25:172
2230349993628,4cyclictest0-21swapper/123:13:091
2230349993626,5cyclictest0-21swapper/120:47:411
2230349993625,6cyclictest2319354-21cron23:25:001
2230352993527,4cyclictest0-21swapper/219:55:172
2230352993525,7cyclictest2232953-21cut19:15:172
223034499352,8cyclictest11-21ksoftirqd/000:05:130
2230344993528,5cyclictest2230492-21kworker/u8:0+events_unbound19:27:260
2230344993528,4cyclictest2270283-21kworker/u8:0+events_unbound21:07:450
2230355993425,6cyclictest2253051-21unixbench_singl20:10:273
2230355993423,7cyclictest0-21swapper/319:35:253
2230352993426,5cyclictest2231530-21unixbench_multi19:10:262
223034499342,8cyclictest11-21ksoftirqd/021:10:120
2230344993426,4cyclictest0-21swapper/019:55:250
223034499341,9cyclictest11-21ksoftirqd/019:40:140
2230344993414,5cyclictest131rcu_preempt23:45:120
2230355993325,6cyclictest2247886-21unixbench_multi19:55:253
2230355993322,6cyclictest0-21swapper/323:25:273
2230355993321,7cyclictest0-21swapper/321:05:313
2230355993312,4cyclictest391ktimers/300:30:273
2230349993325,4cyclictest0-21swapper/121:30:291
2230349993324,4cyclictest0-21swapper/119:30:261
2230349993323,6cyclictest0-21swapper/122:55:001
2230355993225,3cyclictest0-21swapper/321:35:143
2230352993224,4cyclictest0-21swapper/220:30:162
2230352993224,4cyclictest0-21swapper/219:45:262
2230352993223,4cyclictest0-21swapper/223:30:272
2230349993223,5cyclictest0-21swapper/119:57:321
2230344993221,8cyclictest121ktimers/021:30:150
2230344993216,13cyclictest0-21swapper/000:25:010
2230344993210,4cyclictest131rcu_preempt22:30:150
2230355993124,4cyclictest0-21swapper/322:25:273
2230355993123,4cyclictest0-21swapper/322:10:263
2230355993121,6cyclictest0-21swapper/322:40:283
2230352993125,3cyclictest2305831-21if_eth022:45:172
2230352993124,4cyclictest2320610-21unixbench_multi23:25:272
2230352993124,4cyclictest2262006-21munin-plugin-st20:40:002
2230352993123,4cyclictest0-21swapper/223:53:172
2230352993123,4cyclictest0-21swapper/220:45:302
2230352993123,4cyclictest0-21swapper/219:50:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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