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2026-04-27 - 07:30

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 Apr 27, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1656683995343,7cyclictest1692979-21grep20:50:272
1656674995042,5cyclictest1726275-21idleruntime-cro22:30:010
1656687994937,7cyclictest53-21kcompactd023:20:003
1656674994836,8cyclictest1727962-21cron22:35:000
1656683994740,4cyclictest1694043-21fschecks_count20:55:172
1656674994737,6cyclictest1701766-21grep21:15:280
1656674994231,6cyclictest1665952-21grep19:35:000
1656674994230,8cyclictest1717098-21grep22:00:260
1656674994229,9cyclictest438-21cron20:50:000
1656674994229,9cyclictest438-21cron20:50:000
1656683994132,6cyclictest1713689-21unixbench_singl21:50:282
1656683994132,6cyclictest1713689-21unixbench_singl21:50:272
1656678994133,4cyclictest0-21swapper/121:00:011
1656674994131,7cyclictest121ktimers/020:05:130
1656678994030,6cyclictest0-21swapper/100:40:001
1656674994027,9cyclictest121ktimers/019:15:130
1656674994027,9cyclictest121ktimers/019:15:130
1656683993929,6cyclictest0-21swapper/223:35:252
1656678993929,5cyclictest0-21swapper/120:55:001
1656683993830,4cyclictest0-21swapper/221:26:552
1656674993830,4cyclictest1736731-21sendmail23:00:010
1656687993729,5cyclictest1769125-21munin-plugin-st00:35:003
1656678993727,7cyclictest1726271-21sh22:30:001
1656683993627,6cyclictest0-21swapper/219:15:012
1656683993626,6cyclictest0-21swapper/222:30:242
1656683993626,6cyclictest0-21swapper/222:15:262
1656678993614,4cyclictest131rcu_preempt21:00:131
1656674993627,4cyclictest0-21swapper/023:17:150
1656687993527,5cyclictest0-21swapper/319:35:003
1656683993526,6cyclictest0-21swapper/221:05:022
1656683993525,6cyclictest0-21swapper/200:10:242
1656683993524,7cyclictest0-21swapper/219:55:262
1656678993528,4cyclictest0-21swapper/119:15:051
1656678993528,4cyclictest0-21swapper/119:15:051
1656674993524,7cyclictest1758421-21grep00:00:280
1656674993524,7cyclictest1758421-21grep00:00:280
1656687993425,7cyclictest1750735-21fschecks_count23:40:163
1656683993426,4cyclictest0-21swapper/222:05:172
1656683993426,4cyclictest0-21swapper/200:40:002
1656678993428,3cyclictest0-21swapper/122:15:011
1656678993426,4cyclictest0-21swapper/119:40:271
1656678993424,6cyclictest0-21swapper/123:25:261
1656678993422,8cyclictest1767013-21grep00:25:271
1656674993427,4cyclictest0-21swapper/021:40:250
1656674993425,6cyclictest1676175-21sh20:05:020
1656687993326,4cyclictest1735016-21munin-plugin-st22:55:013
1656687993326,4cyclictest1667177-21unixbench_multi19:35:253
1656687993317,4cyclictest0-21swapper/323:55:253
1656683993325,5cyclictest1755461-21cron23:55:002
1656683993324,6cyclictest0-21swapper/223:05:002
1656683993324,6cyclictest0-21swapper/220:40:002
1656683993324,6cyclictest0-21swapper/220:15:022
1656683993323,6cyclictest0-21swapper/223:30:242
1656683993323,6cyclictest0-21swapper/223:20:272
1656683993323,6cyclictest0-21swapper/200:30:262
1656683993323,5cyclictest0-21swapper/200:25:282
1656678993326,5cyclictest1664104-21kworker/u8:2+events_unbound19:31:351
1656678993325,5cyclictest1743527-21auditctl23:20:011
1656678993325,5cyclictest0-21swapper/122:40:261
1656687993223,4cyclictest0-21swapper/300:10:243
1656687993222,7cyclictest1746529-21grep23:25:263
1656683993225,3cyclictest0-21swapper/223:10:162
1656683993223,6cyclictest0-21swapper/219:25:012
1656683993223,6cyclictest0-21swapper/219:25:002
1656683993220,7cyclictest0-21swapper/221:10:242
1656678993225,4cyclictest1736730-21idleruntime-cro23:00:011
1656678993221,8cyclictest1738424-21auditctl23:05:001
1656674993224,4cyclictest0-21swapper/021:55:160
1656674993224,4cyclictest0-21swapper/021:55:160
165667499321,28cyclictest0-21swapper/023:50:120
1656687993125,4cyclictest1750364-21awk23:40:003
1656687993124,3cyclictest0-21swapper/322:05:263
1656687993123,5cyclictest0-21swapper/321:20:003
1656687993123,4cyclictest1684243-21grep20:25:263
1656687993123,4cyclictest0-21swapper/320:50:273
1656687993122,4cyclictest0-21swapper/322:30:263
1656687993120,7cyclictest0-21swapper/319:40:273
1656683993125,3cyclictest0-21swapper/222:40:272
1656683993123,5cyclictest0-21swapper/200:05:252
1656683993121,6cyclictest0-21swapper/219:40:272
1656678993125,3cyclictest0-21swapper/120:25:011
1656678993124,5cyclictest1664104-21kworker/u8:2+events_unbound19:36:371
1656678993124,4cyclictest0-21swapper/121:55:271
1656678993124,4cyclictest0-21swapper/121:55:261
1656678993122,6cyclictest231ktimers/100:15:141
165667499319,5cyclictest0-21swapper/019:45:240
1656674993124,4cyclictest0-21swapper/020:50:280
1656674993121,6cyclictest0-21swapper/022:35:250
1656687993021,5cyclictest1722848-21sh22:20:003
1656683993023,4cyclictest0-21swapper/223:25:222
1656683993022,5cyclictest0-21swapper/221:25:002
1656683993022,5cyclictest0-21swapper/200:05:012
1656683993022,5cyclictest0-21swapper/200:05:002
1656683993021,6cyclictest0-21swapper/221:50:002
1656683993021,6cyclictest0-21swapper/219:55:012
1656683993021,6cyclictest0-21swapper/200:20:002
1656683993020,6cyclictest0-21swapper/221:55:262
1656683993020,6cyclictest0-21swapper/221:55:262
1656683993014,13cyclictest1679818-21seq20:15:142
1656678993022,4cyclictest0-21swapper/123:10:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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