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2026-04-11 - 20:53

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 Sat Apr 11, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2334148995641,12cyclictest121ktimers/007:15:130
2334162995521,10cyclictest2361514-21wc08:25:233
2334159995142,6cyclictest2429340-21munin-plugin-st11:45:002
2334148995136,11cyclictest121ktimers/011:25:120
2334162994840,4cyclictest2410574-21munin-plugin-st10:50:003
2334162994334,6cyclictest2351469-21unixbench_multi07:55:263
2334153994228,5cyclictest131rcu_preempt10:20:001
2334153994228,5cyclictest131rcu_preempt10:20:001
2334153994129,7cyclictest0-21swapper/109:40:001
2334162994031,6cyclictest2372390-21cron09:00:013
2334153994032,4cyclictest2431028-21auditctl11:50:001
2334153994031,6cyclictest2396288-21grep10:05:251
2334159993929,8cyclictest2380599-21kworker/u8:2+events_unbound09:45:142
2334153993928,7cyclictest2429326-21cron11:45:001
2334148993929,6cyclictest0-21swapper/008:25:000
2334159993831,5cyclictest2313015-21kworker/u8:2+events_unbound08:40:342
2334159993831,4cyclictest2375822-21latency_hist09:10:002
2334159993830,6cyclictest2313015-21kworker/u8:2+events_unbound07:45:192
2334159993826,8cyclictest2440782-21tail12:15:262
2334162993730,4cyclictest2363866-21cron08:35:003
2334162993729,5cyclictest2373707-21unixbench_singl09:00:253
2334162993728,5cyclictest2442957-21cron12:25:003
2334162993727,6cyclictest0-21swapper/310:15:173
2334162993727,6cyclictest0-21swapper/310:15:163
2334159993731,4cyclictest2436703-21kworker/u8:2+events_unbound12:11:092
2334153993725,8cyclictest2365160-21grep08:35:271
2334148993727,6cyclictest2432257-21grep11:50:270
2334162993628,4cyclictest0-21swapper/308:50:263
2334162993628,4cyclictest0-21swapper/308:50:263
2334159993630,4cyclictest2405324-21kworker/u8:1+events_unbound10:40:542
2334159993629,4cyclictest0-21swapper/211:50:272
2334159993619,12cyclictest204-21dbus-daemon07:25:072
2334153993627,5cyclictest0-21swapper/111:00:001
2334153993627,5cyclictest0-21swapper/109:20:171
2334162993526,5cyclictest2360489-21idleruntime-cro08:25:003
2334162993523,9cyclictest2338222-21latency_hist07:20:023
2334159993526,5cyclictest0-21swapper/208:05:262
2334159993525,7cyclictest0-21swapper/209:40:012
2334153993526,5cyclictest2405445-21cron10:35:001
2334153993524,7cyclictest2447857-21grep12:35:261
233414899353,6cyclictest131rcu_preempt09:15:140
2334148993529,3cyclictest0-21swapper/008:40:000
2334162993426,4cyclictest2439541-21cron12:15:003
2334159993426,4cyclictest0-21swapper/212:00:152
2334159993425,7cyclictest2426276-21fschecks_count11:35:152
2334159993423,7cyclictest0-21swapper/208:10:262
2334153993425,6cyclictest0-21swapper/108:00:021
2334153993421,8cyclictest0-21swapper/111:35:241
2334148993418,13cyclictest11-21ksoftirqd/010:25:140
2334162993323,6cyclictest0-21swapper/309:40:003
2334159993325,4cyclictest0-21swapper/210:00:002
2334159993324,5cyclictest0-21swapper/212:25:002
2334159993319,6cyclictest2387817-21kworker/u8:3+events_unbound10:01:002
2334153993325,4cyclictest0-21swapper/108:25:151
2334153993322,7cyclictest2422105-21grep11:20:261
2334153993322,7cyclictest2394603-21grep10:00:251
2334148993318,12cyclictest11-21ksoftirqd/011:00:150
2334162993225,4cyclictest2420797-21munin-plugin-st11:20:003
2334162993225,4cyclictest2420797-21munin-plugin-st11:20:003
2334162993222,7cyclictest2403527-21sh10:30:003
2334159993221,8cyclictest2343020-21grep07:30:252
2334159993221,8cyclictest2343020-21grep07:30:252
2334153993224,4cyclictest2442960-21cron12:25:001
2334153993224,4cyclictest2341717-21auditctl07:30:001
2334153993224,4cyclictest0-21swapper/108:35:001
2334148993223,6cyclictest2447850-21unixbench_singl12:35:270
2334162993124,4cyclictest0-21swapper/307:20:253
2334159993122,7cyclictest2436703-21kworker/u8:2+events_unbound12:33:212
2334159993121,6cyclictest2335318-21grep07:10:252
2334153993122,5cyclictest2357856-21sshd08:15:221
2334153993120,5cyclictest0-21swapper/108:45:251
2334153993118,8cyclictest0-21swapper/111:30:001
2334148993121,6cyclictest0-21swapper/010:05:240
2334148993121,6cyclictest0-21swapper/007:15:010
2334162993022,4cyclictest0-21swapper/311:25:153
2334162993022,4cyclictest0-21swapper/310:30:253
2334162993018,7cyclictest2413483-21grep10:55:253
2334159993020,6cyclictest0-21swapper/208:15:272
2334159993018,9cyclictest2391588-21auditctl09:55:002
2334153993022,4cyclictest0-21swapper/112:15:251
2334153993022,4cyclictest0-21swapper/111:05:261
2334153993021,6cyclictest2420796-21munin-plugin-st11:20:001
2334153993021,6cyclictest2420796-21munin-plugin-st11:20:001
2334153993017,9cyclictest0-21swapper/107:45:121
2334148993023,3cyclictest0-21swapper/012:00:250
2334148993018,7cyclictest2391185-21grep09:50:260
2334162992923,4cyclictest391ktimers/310:10:123
2334162992921,6cyclictest2345740-21kernelversion07:40:193
2334162992921,5cyclictest2444664-21sh12:30:003
2334162992921,5cyclictest2379238-21sh09:20:013
2334162992920,6cyclictest0-21swapper/312:35:003
2334159992923,4cyclictest2313015-21kworker/u8:2+events_unbound07:20:062
2334159992922,4cyclictest0-21swapper/210:55:152
2334159992921,4cyclictest0-21swapper/211:45:262
2334159992911,12cyclictest32-21ksoftirqd/209:15:142
2334153992921,5cyclictest2417969-21uname11:10:171
2334153992917,7cyclictest204-21dbus-daemon09:45:451
2334162992821,4cyclictest0-21swapper/310:40:163
2334162992821,4cyclictest0-21swapper/309:10:153
2334162992820,4cyclictest0-21swapper/308:10:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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