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2026-03-15 - 05:46

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 Sun Mar 15, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
486133994941,4cyclictest507418-21latency_hist20:10:011
486141994840,5cyclictest533362-21munin-plugin-st21:25:023
486138994840,4cyclictest568084-21apt-key23:05:002
486141994723,5cyclictest486123-21cyclictest20:12:273
486141994723,5cyclictest486123-21cyclictest20:12:273
486138994739,5cyclictest503932-21idleruntime-cro20:00:012
486133994739,4cyclictest0-21swapper/119:15:021
486141994632,10cyclictest391ktimers/321:10:133
486141994626,5cyclictest538655-21cron21:40:003
486141994531,10cyclictest391ktimers/321:00:123
486141994531,10cyclictest391ktimers/321:00:113
486129994331,9cyclictest121ktimers/020:55:120
486138994231,8cyclictest517789-21sendmail20:40:002
486141994130,8cyclictest581740-21basename23:45:003
486141994129,8cyclictest555937-21auditctl22:30:003
486141994033,4cyclictest574915-21cron23:25:003
486129994029,7cyclictest500063-21grep19:45:270
486141993930,5cyclictest0-21swapper/322:25:013
486141993827,7cyclictest579530-21grep23:35:263
48613899381,5cyclictest131rcu_preempt23:50:132
486129993828,6cyclictest0-21swapper/020:30:010
486129993827,7cyclictest512267-21grep20:20:230
486129993826,10cyclictest121ktimers/019:40:120
486141993730,4cyclictest493493-21munin-plugin-st19:30:003
486141993726,7cyclictest0-21swapper/320:55:013
486133993725,9cyclictest231ktimers/121:00:121
486133993725,9cyclictest231ktimers/121:00:121
486129993730,4cyclictest496891-21cron19:40:000
486129993728,6cyclictest0-21swapper/021:50:010
486129993728,6cyclictest0-21swapper/020:15:010
486129993728,6cyclictest0-21swapper/020:15:000
486141993626,7cyclictest505636-21auditctl20:05:003
486138993527,4cyclictest0-21swapper/223:15:312
486138993526,7cyclictest573560-21kworker/u8:1+events_unbound23:32:532
486138993526,4cyclictest583437-21munin-plugin-st23:50:002
486138993525,7cyclictest551901-21grep22:15:272
486133993527,4cyclictest0-21swapper/121:00:011
486133993527,4cyclictest0-21swapper/120:50:171
486133993526,6cyclictest557171-21grep22:30:251
486129993527,4cyclictest489641-21grep19:15:280
486129993523,6cyclictest0-21swapper/023:35:250
486138993427,3cyclictest0-21swapper/220:20:142
486138993426,4cyclictest0-21swapper/200:20:262
486138993425,5cyclictest548502-21head22:05:252
486138993425,4cyclictest0-21swapper/223:20:152
486138993424,7cyclictest524599-21sendmail21:00:012
486133993425,6cyclictest572778-21grep23:15:301
486133993424,7cyclictest533557-21latency_hist21:25:011
486129993425,6cyclictest0-21swapper/023:15:000
486129993425,6cyclictest0-21swapper/000:40:000
486129993425,5cyclictest0-21swapper/023:45:000
486129993424,6cyclictest0-21swapper/021:30:250
486129993424,6cyclictest0-21swapper/019:55:150
486129993424,6cyclictest0-21swapper/019:20:240
486141993325,4cyclictest0-21swapper/323:17:493
486141993325,4cyclictest0-21swapper/319:40:003
486141993324,5cyclictest0-21swapper/319:40:243
486141993323,6cyclictest0-21swapper/323:45:163
486141993323,6cyclictest0-21swapper/321:20:003
486138993324,5cyclictest0-21swapper/200:40:002
486138993320,8cyclictest204-21dbus-daemon21:22:342
486133993326,4cyclictest0-21swapper/100:20:011
486133993325,4cyclictest0-21swapper/123:50:001
486129993325,4cyclictest0-21swapper/000:15:000
486129993324,6cyclictest533346-21sh21:25:020
486129993324,6cyclictest0-21swapper/020:30:260
486129993323,6cyclictest0-21swapper/021:40:240
486141993225,4cyclictest0-21swapper/321:00:013
486141993223,6cyclictest0-21swapper/320:30:263
486141993222,7cyclictest556395-21tune2fs22:30:153
486141993222,7cyclictest391ktimers/319:20:133
486138993224,4cyclictest0-21swapper/219:15:172
486138993224,4cyclictest0-21swapper/219:10:262
486138993223,5cyclictest0-21swapper/200:35:012
486133993221,6cyclictest0-21swapper/122:00:251
486129993226,3cyclictest0-21swapper/021:30:000
486129993225,3cyclictest0-21swapper/020:10:010
486141993123,4cyclictest0-21swapper/320:42:293
486141993121,7cyclictest539141-21grep21:40:153
486141993118,4cyclictest0-21swapper/323:30:173
486138993125,4cyclictest507767-21kworker/u8:2+events_unbound20:17:282
486138993125,4cyclictest507767-21kworker/u8:2+events_unbound20:17:272
486138993121,7cyclictest516064-21sh20:35:002
486138993121,6cyclictest0-21swapper/219:50:242
486138993118,5cyclictest571357-21kworker/u8:2+events_unbound23:26:482
486133993123,4cyclictest0-21swapper/123:00:011
486133993123,4cyclictest0-21swapper/121:45:251
486133993123,4cyclictest0-21swapper/100:10:151
486133993122,5cyclictest536533-21grep21:30:251
486133993119,8cyclictest1-21systemd00:07:551
486129993125,3cyclictest0-21swapper/021:05:240
486129993122,5cyclictest562764-21munin-plugin-st22:50:000
486129993122,5cyclictest0-21swapper/021:35:200
486141993023,4cyclictest0-21swapper/322:40:243
486141993022,5cyclictest0-21swapper/300:10:253
486141993019,7cyclictest0-21swapper/319:10:263
486138993022,4cyclictest539073-21fschecks_count21:40:152
486138993022,4cyclictest0-21swapper/223:00:002
486138993021,5cyclictest0-21swapper/220:40:172
486138993021,5cyclictest0-21swapper/219:25:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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