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2025-12-27 - 00:26

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 Fri Dec 26, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223826799571,3cyclictest0-21swapper/009:45:120
2238277995646,6cyclictest2321713-21cut11:10:152
2238277995645,6cyclictest2331318-21grep11:35:252
2238277995546,6cyclictest204-21dbus-daemon12:05:212
2238277994942,5cyclictest2312286-21kworker/u8:1+events_unbound10:45:112
2238272994938,7cyclictest2259002-21grep08:05:261
2238281994628,7cyclictest2314505-21kworker/u8:0+events_unbound11:30:173
2238281994522,5cyclictest2232857-21kworker/u8:1+events_unbound07:15:043
2238272994537,5cyclictest2302333-21cron10:15:011
2238267994534,8cyclictest121ktimers/012:25:130
2238267994533,9cyclictest2304063-21sendmail10:20:000
2238267994438,4cyclictest2242214-21cron07:20:010
2238277994334,4cyclictest0-21swapper/208:00:012
2238272994333,5cyclictest2350937-21fschecks_time12:35:121
2238272994329,10cyclictest2296770-21grep09:55:261
2238272994232,7cyclictest2326643-21cron11:25:001
2238272994232,7cyclictest2326643-21cron11:24:591
2238272994126,11cyclictest231ktimers/109:00:131
2238267994121,16cyclictest13550irq/42-30be0000.ethernet11:00:130
2238277994033,5cyclictest2341855-21kworker/u8:1+events_unbound12:10:232
2238267994033,5cyclictest2314505-21kworker/u8:0+events_unbound11:40:190
2238281993929,6cyclictest0-21swapper/307:25:013
2238277993929,6cyclictest2281866-21cron09:15:012
2238277993911,7cyclictest131rcu_preempt09:00:112
2238272993929,4cyclictest2310546-21kworker/u8:0+events_unbound10:40:081
2238267993932,4cyclictest2283591-21munin-plugin-st09:20:010
2238281993831,5cyclictest2307462-21cron10:30:013
2238281993831,4cyclictest0-21swapper/308:50:013
2238281993830,4cyclictest0-21swapper/311:19:593
2238281993828,6cyclictest0-21swapper/308:05:003
2238277993832,4cyclictest2303718-21kworker/u8:0+events_unbound10:20:072
2238277993828,6cyclictest0-21swapper/211:50:192
2238277993828,5cyclictest2260727-21grep08:10:242
2238277993827,8cyclictest311ktimers/210:10:122
2238277993825,9cyclictest2350109-21grep12:30:252
2238272993828,6cyclictest2318318-21fschecks_count11:00:161
2238272993827,7cyclictest2239987-21cron07:15:011
2238267993828,7cyclictest2245727-21latency_hist07:30:010
2238281993728,5cyclictest0-21swapper/312:00:003
2238281993726,7cyclictest2284860-21grep09:20:233
2238277993729,5cyclictest2249023-21sh07:40:012
2238277993726,6cyclictest0-21swapper/209:50:252
2238277993725,8cyclictest311ktimers/210:30:132
2238272993729,5cyclictest2345373-21kworker/u8:0+events_unbound12:20:251
2238272993728,5cyclictest2340307-21munin-plugin-st12:05:011
2238281993628,5cyclictest0-21swapper/309:15:013
2238281993627,6cyclictest2268871-21proc_pri08:35:243
2238281993626,5cyclictest0-21swapper/310:00:173
2238277993625,7cyclictest2334699-21grep11:45:232
2238277993625,7cyclictest0-21swapper/207:15:262
2238277993625,6cyclictest0-21swapper/207:30:232
2238277993622,9cyclictest311ktimers/207:20:122
2238281993529,4cyclictest2262756-21kworker/u8:0+events_unbound08:54:573
2238281993526,6cyclictest0-21swapper/312:20:013
2238281993526,6cyclictest0-21swapper/311:45:003
2238281993524,7cyclictest0-21swapper/310:25:003
2238277993526,7cyclictest2271653-21kworker/u8:1+events_unbound08:53:412
2238277993523,4cyclictest2285168-21kworker/u8:0+events_unbound09:35:002
2238272993526,6cyclictest2259877-21fschecks_count08:10:161
2238272993526,5cyclictest0-21swapper/112:35:011
2238267993526,6cyclictest2330045-21cron11:35:000
2238281993427,3cyclictest0-21swapper/308:15:283
2238281993425,5cyclictest0-21swapper/307:55:013
2238281993425,5cyclictest0-21swapper/307:55:013
2238281993424,7cyclictest2321715-21fschecks_count11:10:143
2238281993424,6cyclictest2321310-21sh11:10:003
2238281993424,6cyclictest0-21swapper/312:05:013
2238281993424,6cyclictest0-21swapper/311:50:013
2238281993424,6cyclictest0-21swapper/310:44:593
2238277993428,4cyclictest2293780-21kworker/u8:3+events_unbound09:55:022
2238277993427,5cyclictest2300326-21kworker/u8:2+events_unbound10:06:412
2238277993427,3cyclictest0-21swapper/210:35:172
2238277993426,4cyclictest0-21swapper/207:10:242
2238277993422,8cyclictest311ktimers/209:40:142
2238272993424,6cyclictest2253740-21grep07:50:271
2238272993424,6cyclictest2253740-21grep07:50:261
2238267993427,4cyclictest2239995-21cron07:15:010
2238281993326,4cyclictest2336870-21cron11:55:013
2238281993324,6cyclictest2261177-21cron08:15:013
2238281993322,7cyclictest2270966-21grep08:40:273
2238281993320,10cyclictest391ktimers/309:55:143
2238277993322,7cyclictest2326203-21grep11:20:262
2238277993322,7cyclictest2326203-21grep11:20:252
2238272993325,4cyclictest0-21swapper/108:20:161
2238272993324,6cyclictest2300643-21idleruntime-cro10:10:001
2238272993323,7cyclictest2283570-21cron09:20:001
2238272993322,6cyclictest0-21swapper/109:50:011
2238281993226,4cyclictest2250583-21kworker/u8:0+events_unbound07:44:423
2238281993224,5cyclictest2348828-21grep12:30:003
2238281993224,4cyclictest0-21swapper/308:20:263
2238281993222,6cyclictest2314278-21sh10:49:593
2238277993226,4cyclictest2276366-21kworker/u8:2+events_unbound08:56:422
2238277993224,4cyclictest0-21swapper/207:25:262
2238277993222,6cyclictest2269295-21grep08:35:262
2238277993221,6cyclictest0-21swapper/211:55:262
2238277993221,5cyclictest0-21swapper/208:35:012
2238272993224,4cyclictest0-21swapper/110:50:171
2238272993222,7cyclictest2307460-21sh10:30:011
2238272993222,6cyclictest0-21swapper/111:30:241
2238272993222,6cyclictest0-21swapper/111:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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