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2025-08-28 - 22:23
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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 rackeslot4.osadl.org (updated Thu Aug 28, 2025 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2318857993633,2cyclictest2581048-21kworker/0:2+pm11:09:500
2318863993330,2cyclictest2593946-21fwupd11:09:512
2318857992820,2cyclictest2568693-21apt-get10:50:110
231886399271,24cyclictest2129583-21systemd-journal11:30:002
231886399271,24cyclictest2129583-21systemd-journal11:29:592
231886399271,23cyclictest2360192-21grep07:50:172
231886399271,21cyclictest2702732-21apt-get12:35:142
231886699262,21cyclictest2369838-21apt-get08:00:153
231886399262,21cyclictest2344480-21apt-get07:35:132
231886399262,20cyclictest2663973-21apt-get12:05:112
231886399261,21cyclictest2319073-21apt-get07:10:132
231886399260,25cyclictest2579266-21xargs10:55:252
231886199262,21cyclictest2492424-21apt-get09:50:111
231886199261,21cyclictest2369838-21apt-get08:00:161
231886699251,3cyclictest2542953-21apt-get10:30:093
231886699250,23cyclictest2593614-21taskset11:08:483
231886399252,3cyclictest2625962-21apt-get11:35:122
2318863992520,3cyclictest2415994-21apt-get08:45:132
231886199251,3cyclictest2630083-21ntpq11:35:221
231886199250,24cyclictest2364490-21ls07:54:591
2318857992520,3cyclictest2436301-21apt-get09:05:130
2318866992420,2cyclictest2689721-21apt-get12:25:153
2318866992418,4cyclictest2474614-21ssh09:35:193
231886699241,3cyclictest2613332-21apt-get11:25:133
231886699241,3cyclictest2613332-21apt-get11:25:123
231886699241,21cyclictest2420809-21apt08:50:003
231886699241,20cyclictest0-21swapper/308:50:123
231886699240,3cyclictest2466953-21diskstats09:30:143
231886699240,22cyclictest2581577-21apt-key11:00:013
231886699240,21cyclictest0-21swapper/307:25:143
231886399243,12cyclictest2410683-21munin-run08:40:002
231886399242,20cyclictest2374961-21apt-get08:05:132
2318863992420,2cyclictest2677037-21apt-get12:15:132
2318863992419,3cyclictest2498734-21chrt09:55:132
2318863992419,3cyclictest2486281-21df09:45:162
2318863992418,5cyclictest2359426-21cron07:49:592
231886399241,3cyclictest2380082-21apt-get08:10:112
231886399241,2cyclictest2536660-21apt-get10:25:132
231886399241,2cyclictest2530347-21apt-get10:20:122
231886399241,20cyclictest2441475-21apt-get09:10:142
231886399240,21cyclictest0-21swapper/210:10:122
231886199241,3cyclictest2431197-21apt-get09:00:121
231886199241,21cyclictest2505088-21apt-get10:00:131
231886199241,20cyclictest2405889-21apt-get08:35:141
231886199241,20cyclictest2395737-21apt-get08:25:131
231886199241,20cyclictest0-21swapper/110:25:121
231886199240,23cyclictest2608284-21tr11:20:181
231886199240,23cyclictest2608284-21tr11:20:171
231886199240,20cyclictest0-21swapper/112:20:111
231886199240,20cyclictest0-21swapper/110:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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