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2026-07-11 - 19:56

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 50 highest latencies:
System rackbslot5s.osadl.org (updated Sat Jul 11, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1433354995039,9cyclictest121ktimers/009:35:130
1433367994937,8cyclictest1436855-21grep07:15:293
1433367994840,4cyclictest1454579-21latency_hist08:10:013
1433367994839,4cyclictest1478702-21idleruntime-cro09:20:013
1433359994733,11cyclictest231ktimers/110:20:111
1433362994437,4cyclictest1466523-21apt-get08:45:012
1433362994432,9cyclictest1478705-21idleruntime-cro09:20:002
1433362994424,12cyclictest131rcu_preempt12:15:122
1433362994330,9cyclictest311ktimers/210:55:132
1433359994335,5cyclictest1508092-21apt-get10:45:001
1433367994233,6cyclictest208-21systemd-logind10:36:133
1433359994233,5cyclictest0-21swapper/111:39:591
1433367994033,5cyclictest1456005-21kworker/u8:2+events_unbound08:30:403
1433367994028,9cyclictest1450707-21grep07:55:283
1433367994015,9cyclictest131rcu_preempt10:30:123
1433362994032,4cyclictest0-21swapper/211:46:232
1433354994028,10cyclictest121ktimers/011:35:120
1433367993931,5cyclictest1466535-21munin-plugin-st08:45:003
1433362993931,4cyclictest0-21swapper/207:35:212
1433362993923,6cyclictest1464747-21kworker/u8:0+events_unbound08:50:162
1433362993923,6cyclictest1464747-21kworker/u8:0+events_unbound08:50:162
1433359993931,4cyclictest0-21swapper/112:00:001
1433354993932,4cyclictest1449251-21munin-plugin-st07:55:000
1433354993916,10cyclictest131rcu_preempt08:10:120
1433367993830,6cyclictest1515227-21kworker/u8:2+events_unbound11:11:183
1433367993829,4cyclictest0-21swapper/312:19:593
1433362993822,4cyclictest1539407-21kworker/u8:0+events_unbound12:24:422
1433359993830,5cyclictest1489125-21munin-run09:50:001
1433359993830,5cyclictest1449218-21kworker/u8:3+events_unbound07:55:241
1433359993829,5cyclictest0-21swapper/109:35:011
1433354993830,6cyclictest1494250-21munin-plugin-st10:05:010
1433367993715,7cyclictest131rcu_preempt09:35:123
1433362993728,6cyclictest1459285-21unixbench_singl08:20:252
1433362993727,6cyclictest0-21swapper/210:00:012
1433362993723,11cyclictest311ktimers/212:30:152
1433359993729,4cyclictest0-21swapper/110:00:541
1433359993728,7cyclictest1544556-21unixbench_singl12:25:251
1433367993627,6cyclictest1544960-21sh12:30:003
1433367993626,7cyclictest1511822-21apt-config10:55:003
1433367993624,7cyclictest0-21swapper/307:45:283
1433367993613,8cyclictest131rcu_preempt09:00:113
1433367993612,4cyclictest0-21swapper/311:30:133
1433362993627,6cyclictest0-21swapper/208:05:262
1433367993527,4cyclictest0-21swapper/310:10:283
1433367993526,4cyclictest0-21swapper/311:25:263
1433367993526,4cyclictest0-21swapper/311:25:253
1433367993516,5cyclictest1463008-21kworker/u8:1+events_unbound08:37:343
1433367993514,8cyclictest40-21ksoftirqd/307:25:113
1433362993528,4cyclictest1508129-21latency_hist10:45:012
1433359993529,4cyclictest1464813-21grep08:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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