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2026-07-24 - 12:52

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 Jul 24, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1186053994737,6cyclictest1245405-21cron22:00:003
1186039994740,4cyclictest1254377-21idleruntime-cro22:25:000
1186039994737,6cyclictest1278845-21cut23:35:140
1186053994536,5cyclictest1217911-21idleruntime-cro20:40:013
1186044994537,5cyclictest1223029-21munin-plugin-st20:55:011
1186048994329,10cyclictest311ktimers/223:35:112
1186048994329,10cyclictest311ktimers/200:20:132
1186039994336,4cyclictest1224713-21cron21:00:010
1186048994234,4cyclictest1245400-21cron22:00:002
1186044994231,8cyclictest1224715-21sh21:00:011
1186053994132,6cyclictest1293363-21unixbench_multi00:15:283
1186048994130,7cyclictest311ktimers/220:25:112
1186044994132,6cyclictest1269928-21cron23:10:001
1186048994027,9cyclictest311ktimers/200:15:152
1186048994027,9cyclictest1300634-21munin-run00:40:002
1186039994031,6cyclictest1227676-21grep21:05:260
1186039994027,9cyclictest1262690-21grep22:45:260
1186044993931,4cyclictest0-21swapper/123:10:251
1186044993930,6cyclictest1227679-21unixbench_multi21:05:261
1186044993928,8cyclictest231ktimers/121:40:141
1186044993928,8cyclictest1277966-21sshd23:30:251
1186039993932,4cyclictest1296815-21unixbench_singl00:25:270
1186039993932,4cyclictest1296815-21unixbench_singl00:25:270
1186053993830,5cyclictest1259507-21idleruntime-cro22:40:003
1186053993827,7cyclictest0-21swapper/320:15:013
1186053993827,6cyclictest0-21swapper/320:30:013
1186044993832,4cyclictest1234667-21kworker/u8:1+events_unbound21:37:221
1186044993830,5cyclictest1217412-21unixbench_multi20:35:251
1186044993830,4cyclictest0-21swapper/100:10:171
1186053993728,5cyclictest0-21swapper/323:25:003
1186053993728,5cyclictest0-21swapper/320:00:013
1186044993730,4cyclictest1203842-21munin-plugin-st20:00:011
118603999374,6cyclictest131rcu_preempt22:55:130
1186039993728,6cyclictest1269927-21cron23:10:000
1186039993723,10cyclictest121ktimers/021:50:130
1186053993628,4cyclictest1254366-21cron22:25:003
1186053993627,5cyclictest0-21swapper/322:45:263
1186053993625,7cyclictest0-21swapper/319:35:253
1186048993628,4cyclictest0-21swapper/222:55:002
118604499368,18cyclictest1259483-21munin-run22:40:011
1186039993630,3cyclictest0-21swapper/000:15:270
118603999362,5cyclictest131rcu_preempt22:10:120
1186053993526,6cyclictest0-21swapper/319:35:013
1186048993527,4cyclictest0-21swapper/222:30:002
1186048993527,4cyclictest0-21swapper/221:52:202
1186044993527,5cyclictest0-21swapper/119:50:011
1186044993527,4cyclictest0-21swapper/120:25:161
1186044993527,4cyclictest0-21swapper/119:20:011
1186044993526,6cyclictest1196394-21grep19:35:261
1186039993528,3cyclictest0-21swapper/023:15:240
1186039993528,3cyclictest0-21swapper/023:15:240
1186053993425,6cyclictest0-21swapper/319:45:013
1186053993425,4cyclictest0-21swapper/319:25:173
1186053993424,7cyclictest0-21swapper/321:40:273
1186053993424,6cyclictest0-21swapper/320:45:013
1186053993423,7cyclictest0-21swapper/323:55:253
1186048993427,4cyclictest0-21swapper/222:30:162
1186048993426,4cyclictest0-21swapper/223:45:152
1186048993424,7cyclictest1217412-21unixbench_multi20:35:242
1186044993428,4cyclictest1254095-21kworker/u8:0+events_unbound22:32:291
1186044993426,4cyclictest0-21swapper/120:45:011
1186044993426,4cyclictest0-21swapper/120:05:241
1186039993427,4cyclictest1187947-21munin-node19:15:020
1186039993427,4cyclictest0-21swapper/020:50:010
118603999342,5cyclictest131rcu_preempt21:00:130
1186039993424,6cyclictest0-21swapper/021:35:250
1186053993326,3cyclictest0-21swapper/323:45:243
1186053993325,4cyclictest0-21swapper/300:25:163
1186053993325,4cyclictest0-21swapper/300:25:163
1186053993323,6cyclictest0-21swapper/323:15:003
1186053993323,6cyclictest0-21swapper/322:55:003
1186048993324,4cyclictest0-21swapper/220:15:252
1186048993323,6cyclictest0-21swapper/222:55:272
1186044993326,4cyclictest0-21swapper/123:50:261
1186044993324,6cyclictest1295110-21grep00:20:261
1186044993321,8cyclictest1209173-21cut20:15:011
1186039993325,3cyclictest0-21swapper/020:20:000
1186039993323,7cyclictest1198088-21grep19:40:260
1186039993323,6cyclictest1267796-21grep23:00:280
1186053993222,6cyclictest0-21swapper/322:30:263
1186053993222,6cyclictest0-21swapper/321:30:253
1186053993221,7cyclictest0-21swapper/322:45:013
1186053993221,7cyclictest0-21swapper/321:30:003
1186048993225,4cyclictest1290406-21sh00:10:002
1186048993225,4cyclictest0-21swapper/222:00:262
1186048993225,4cyclictest0-21swapper/221:40:012
1186048993224,4cyclictest0-21swapper/220:20:232
1186048993222,5cyclictest0-21swapper/220:55:012
1186044993226,4cyclictest1228956-21kworker/u8:3+events_unbound21:12:191
1186044993225,4cyclictest0-21swapper/120:20:141
1186044993224,5cyclictest0-21swapper/123:15:241
1186044993224,5cyclictest0-21swapper/123:15:231
1186044993223,5cyclictest0-21swapper/121:05:011
1186044993222,7cyclictest1266514-21munin-run23:00:001
1186044993221,7cyclictest1220857-21grep20:45:281
118603999323,16cyclictest1259475-21apt-get22:40:010
1186039993223,7cyclictest1235051-21apt-config21:30:010
1186053993123,4cyclictest0-21swapper/323:50:263
1186053993123,4cyclictest0-21swapper/323:30:003
1186053993123,4cyclictest0-21swapper/322:20:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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