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2026-01-05 - 09:26

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 Jan 05, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2192071995631,7cyclictest131rcu_preempt21:25:122
2192071995036,9cyclictest2254347-21seq22:05:252
2192074994740,4cyclictest2216561-21unixbench_singl20:15:303
2192071994733,11cyclictest311ktimers/220:30:132
2192074994531,11cyclictest391ktimers/300:35:133
2192074994434,7cyclictest2297968-21grep00:10:243
2192071994234,4cyclictest0-21swapper/220:20:012
2192071994232,8cyclictest311ktimers/220:20:152
2192068994232,7cyclictest2282613-21latency_hist23:30:001
2192068994133,4cyclictest2203068-21munin-plugin-st19:40:011
2192063994132,5cyclictest0-21swapper/021:05:010
2192071994033,4cyclictest0-21swapper/200:00:182
2192071994030,5cyclictest0-21swapper/222:00:162
2192063994033,4cyclictest2221669-21unixbench_singl20:30:270
2192063994033,4cyclictest2196002-21cron19:20:010
2192063994032,5cyclictest2197266-21unixbench_multi19:20:280
2192074993926,8cyclictest2275757-21cron23:10:003
2192063993928,7cyclictest2282209-21grep23:25:280
2192074993826,7cyclictest2283841-21grep23:30:243
2192074993730,4cyclictest2296558-21latency_hist00:10:013
2192071993730,4cyclictest0-21swapper/220:15:012
2192068993729,4cyclictest0-21swapper/123:45:161
2192063993730,3cyclictest2293099-21sendmail00:00:010
2192063993728,6cyclictest2219906-21unixbench_multi20:25:260
2192063993727,6cyclictest0-21swapper/021:40:000
2192063993727,6cyclictest0-21swapper/021:40:000
2192068993625,7cyclictest2195579-21grep19:15:281
2192063993629,4cyclictest0-21swapper/022:20:000
2192063993627,6cyclictest2223819-21sendmail20:40:010
2192074993525,6cyclictest2258694-21fschecks_time22:20:163
2192071993527,4cyclictest0-21swapper/221:05:212
2192071993523,9cyclictest2303547-21cron00:30:002
2192068993528,4cyclictest2237496-21munin-plugin-st21:20:001
2192068993527,4cyclictest0-21swapper/122:30:011
2192063993527,5cyclictest2242180-21unixbench_multi21:30:260
2192063993527,5cyclictest2242180-21unixbench_multi21:30:260
2192063993525,6cyclictest0-21swapper/023:45:260
2192074993427,4cyclictest2203056-21sh19:40:003
2192071993427,5cyclictest2203892-21kworker/u8:2+events_unbound19:41:512
2192071993424,6cyclictest0-21swapper/221:15:002
2192068993425,5cyclictest2216538-21unixbench_singl20:15:291
2192068993425,5cyclictest0-21swapper/119:50:201
2192063993424,6cyclictest0-21swapper/000:05:010
2192074993325,4cyclictest2268718-21munin-plugin-st22:50:013
2192074993324,6cyclictest0-21swapper/320:05:013
219207199332,5cyclictest131rcu_preempt21:15:132
2192071993325,4cyclictest0-21swapper/223:10:312
2192071993324,5cyclictest2291359-21sh23:55:012
2192068993326,4cyclictest0-21swapper/120:25:011
2192068993324,6cyclictest2200730-21grep19:30:271
2192068993323,5cyclictest0-21swapper/121:40:171
2192063993323,6cyclictest0-21swapper/022:30:260
2192074993225,4cyclictest208-21systemd-logind23:02:123
2192074993225,4cyclictest0-21swapper/322:30:263
2192074993224,5cyclictest2206500-21idleruntime-cro19:50:013
2192074993224,4cyclictest0-21swapper/319:55:003
2192074993212,17cyclictest2208642-21apt-get19:55:133
2192071993225,5cyclictest2257897-21kworker/u8:2+events_unbound23:28:412
2192071993224,4cyclictest0-21swapper/223:22:132
2192071993224,4cyclictest0-21swapper/220:00:272
2192071993223,5cyclictest2201137-21cron19:35:012
2192071993220,7cyclictest0-21swapper/222:30:262
2192068993224,4cyclictest0-21swapper/123:39:591
2192068993223,4cyclictest0-21swapper/123:05:171
2192068993220,9cyclictest0-21swapper/122:30:161
2192063993222,6cyclictest0-21swapper/022:45:260
2192063993222,6cyclictest0-21swapper/000:30:280
2192063993219,9cyclictest121ktimers/000:35:130
219206399320,29cyclictest0-21swapper/020:55:140
2192074993125,3cyclictest2240519-21unixbench_singl21:25:263
2192074993116,7cyclictest131rcu_preempt21:57:003
2192074993111,6cyclictest40-21ksoftirqd/322:25:223
2192071993124,5cyclictest2257897-21kworker/u8:2+events_unbound22:26:412
2192071993124,4cyclictest2199441-21latency_hist19:30:012
2192071993124,4cyclictest0-21swapper/223:45:262
2192071993124,4cyclictest0-21swapper/200:05:262
2192071993122,4cyclictest0-21swapper/220:50:012
2192071993121,6cyclictest0-21swapper/222:15:002
2192068993122,4cyclictest0-21swapper/122:20:251
2192068993118,9cyclictest0-21swapper/121:30:171
2192068993118,9cyclictest0-21swapper/121:30:161
2192063993125,3cyclictest0-21swapper/021:20:000
2192063993121,6cyclictest0-21swapper/022:05:260
2192063993121,6cyclictest0-21swapper/019:35:270
219207499309,4cyclictest391ktimers/321:00:243
2192074993024,3cyclictest0-21swapper/300:30:173
2192074993023,3cyclictest0-21swapper/320:35:263
2192074993021,7cyclictest2238270-21grep21:20:213
2192074993011,8cyclictest131rcu_preempt22:40:223
2192074993011,5cyclictest40-21ksoftirqd/321:41:293
2192071993022,6cyclictest2199371-21kworker/u8:1+events_unbound19:51:512
2192071993022,4cyclictest0-21swapper/220:40:272
2192068993023,4cyclictest0-21swapper/121:55:001
2192068993023,4cyclictest0-21swapper/100:15:261
2192068993022,4cyclictest0-21swapper/120:55:011
2192068993020,7cyclictest2303557-21idleruntime-cro00:29:591
2192068993020,7cyclictest0-21swapper/100:35:001
2192063993021,5cyclictest0-21swapper/020:15:300
2192063993020,5cyclictest0-21swapper/021:40:270
2192074992919,4cyclictest131rcu_preempt23:10:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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