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2026-05-11 - 06:25

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 Mon May 11, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1189366995648,5cyclictest1272145-21unixbench_multi23:05:260
1189369995329,20cyclictest0-21swapper/121:25:001
1189366995027,8cyclictest131rcu_preempt23:10:120
1189377994935,11cyclictest391ktimers/323:45:133
1189366994834,11cyclictest121ktimers/021:30:130
1189373994740,4cyclictest12003612sleep219:40:122
1189377994435,6cyclictest1300213-21sshd00:28:393
1189377994420,21cyclictest0-21swapper/300:00:003
1189377994418,22cyclictest0-21swapper/323:20:163
1189377994415,26cyclictest0-21swapper/300:15:013
1189377994415,26cyclictest0-21swapper/300:15:003
1189377994415,25cyclictest0-21swapper/323:10:233
1189369994438,4cyclictest1231460-21munin-plugin-st21:10:011
1189369994438,4cyclictest1231460-21munin-plugin-st21:10:001
1189369994435,6cyclictest1203541-21idleruntime-cro19:50:001
1189369994435,6cyclictest1203541-21idleruntime-cro19:50:001
1189369994432,9cyclictest231ktimers/119:15:111
1189366994438,4cyclictest1243254-21kworker/u8:3+events_unbound22:16:590
1189377994315,9cyclictest1223302-21cut20:45:193
118937799427,11cyclictest1253829-21apt22:15:013
118937799427,11cyclictest1253829-21apt22:15:003
1189377994213,3cyclictest0-21swapper/321:40:163
1189373994234,5cyclictest1265783-21audit_send_reply22:50:002
1189366994232,7cyclictest1289435-21grep23:55:250
118937799419,4cyclictest1232741-21unixbench_singl21:10:253
118937799419,4cyclictest1232741-21unixbench_singl21:10:243
118937799417,6cyclictest1303267-21grep00:35:243
1189377994132,6cyclictest1268714-21unixbench_multi22:55:263
118937799408,5cyclictest1261440-21/usr/sbin/munin22:35:223
118937799407,5cyclictest1263593-21unixbench_multi22:40:233
118937799406,6cyclictest1230984-21unixbench_multi21:05:273
118937799406,6cyclictest1230984-21unixbench_multi21:05:273
1189377994014,4cyclictest0-21swapper/320:00:263
1189377994014,23cyclictest0-21swapper/321:35:143
1189377994013,5cyclictest391ktimers/319:55:233
1189377994012,3cyclictest0-21swapper/323:25:183
1189377994012,3cyclictest0-21swapper/323:25:173
118937799401,12cyclictest1212275-21munin-run20:15:003
118937799401,11cyclictest1270437-21tail23:00:273
1189373994032,5cyclictest1260653-21cron22:35:012
118937799392,12cyclictest1288160-21awk23:55:003
1189377993913,3cyclictest0-21swapper/321:15:243
1189377993913,3cyclictest0-21swapper/319:36:353
1189377993912,2cyclictest0-21swapper/300:15:263
118937799391,10cyclictest1201370-21unixbench_multi19:40:253
1189369993932,4cyclictest0-21swapper/122:00:001
118937799381,9cyclictest1213960-21cron20:20:003
1189377993813,3cyclictest0-21swapper/323:06:113
1189377993812,3cyclictest0-21swapper/320:42:133
1189377993812,3cyclictest0-21swapper/320:42:133
1189377993811,3cyclictest0-21swapper/300:00:273
118937799381,12cyclictest1264493-21cut22:45:153
118937799381,10cyclictest1244641-21grep21:45:253
1189377993810,8cyclictest204-21dbus-daemon20:26:443
1189373993831,4cyclictest0-21swapper/221:15:002
1189373993831,4cyclictest0-21swapper/221:15:002
1189373993830,5cyclictest1205452-21idleruntime-cro19:55:012
1189373993828,6cyclictest0-21swapper/223:00:262
1189369993829,4cyclictest0-21swapper/120:11:411
1189369993827,7cyclictest0-21swapper/122:16:581
118936699382,8cyclictest11-21ksoftirqd/022:45:120
1189366993815,6cyclictest131rcu_preempt23:00:130
118937799378,6cyclictest1192930-21seq19:15:463
1189377993727,7cyclictest1238279-21auditctl21:30:003
118937799371,8cyclictest1293271-21cron00:10:003
118937799371,8cyclictest1293271-21cron00:10:003
1189377993713,21cyclictest0-21swapper/322:15:253
1189377993712,3cyclictest0-21swapper/319:20:243
1189377993711,3cyclictest1226350-21/usr/sbin/munin20:55:213
118937799371,10cyclictest1298622-21cron00:25:003
1189377993710,5cyclictest0-21swapper/321:50:173
1189373993729,4cyclictest0-21swapper/221:25:252
1189373993726,8cyclictest1289397-21grep23:55:262
1189377993611,5cyclictest0-21swapper/322:00:183
1189377993611,4cyclictest0-21swapper/322:20:193
118937799361,12cyclictest1280887-21grep23:30:273
118937799361,10cyclictest1259099-21wc22:30:013
1189377993610,3cyclictest0-21swapper/319:30:183
1189373993625,6cyclictest0-21swapper/221:55:002
1189366993626,7cyclictest1251722-21grep22:05:270
1189366993527,4cyclictest151rcuc/020:30:120
1189377993425,5cyclictest0-21swapper/300:35:013
1189377993424,6cyclictest0-21swapper/323:40:263
1189377993424,6cyclictest0-21swapper/323:40:263
1189377993412,3cyclictest645-21runrttasks21:32:533
1189377993411,4cyclictest391ktimers/321:55:143
1189373993418,12cyclictest311ktimers/221:05:152
1189373993418,12cyclictest311ktimers/221:05:152
1189369993426,4cyclictest0-21swapper/100:30:251
1189369993425,5cyclictest1286460-21munin-plugin-st23:50:001
1189366993425,4cyclictest0-21swapper/020:26:440
1189366993424,6cyclictest0-21swapper/019:40:160
1189366993419,12cyclictest1189358-21cyclictest22:35:120
1189377993325,4cyclictest0-21swapper/319:46:363
1189377993325,4cyclictest0-21swapper/319:46:363
1189377993311,3cyclictest0-21swapper/321:00:263
118937799331,10cyclictest1252127-21cron22:10:003
1189377993310,5cyclictest391ktimers/320:20:133
1189373993326,4cyclictest0-21swapper/221:40:162
1189373993325,4cyclictest0-21swapper/222:05:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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