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2026-07-15 - 01:37
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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 100 highest latencies:
System rackeslot4.osadl.org (updated Tue Jul 14, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2435039993014,4cyclictest2583694-21irqcore09:35:163
243503999292,20cyclictest2486245-21turbostat08:00:013
243503999292,20cyclictest2486245-21turbostat08:00:003
2435039992915,2cyclictest2621321-21kthreadcore10:10:173
243503999291,21cyclictest2751546-21apt-get12:20:133
243503999291,20cyclictest0-21swapper/308:30:123
243503999281,2cyclictest2689333-21ntpq11:15:213
243503999280,2cyclictest0-21swapper/308:10:113
2435039992723,2cyclictest3871586-21snmpd12:35:163
2435039992719,6cyclictest2557884-21apt-get09:10:113
2435039992617,1cyclictest0-21swapper/309:55:133
243503999261,21cyclictest2634266-21apt-get10:25:123
243503999261,20cyclictest64-21kcompactd007:23:503
243503999261,20cyclictest0-21swapper/307:30:113
243503999260,2cyclictest64-21kcompactd010:50:493
2435039992519,1cyclictest0-21swapper/310:35:103
243503999251,22cyclictest2700294-21awk11:30:003
243503999251,20cyclictest0-21swapper/309:25:143
2435036992521,2cyclictest2736397-21apt-get12:05:112
2435036992520,3cyclictest2695511-21apt-get11:25:122
2435036992520,3cyclictest2573057-21apt-get09:25:142
243503699251,20cyclictest0-21swapper/211:50:132
243503699250,23cyclictest2472238-21sed07:45:182
243503699250,23cyclictest2466669-21cut07:40:162
243503499251,22cyclictest2710482-21munin-run11:40:011
243503499251,21cyclictest2674814-21apt-get11:05:121
243503499251,21cyclictest0-21swapper/111:50:131
243503499251,20cyclictest0-21swapper/107:35:121
243502999255,1cyclictest0-21swapper/007:25:140
2435039992420,2cyclictest2741456-21apt-get12:10:133
2435039992420,2cyclictest2639345-21apt-get10:30:133
2435039992420,2cyclictest2639345-21apt-get10:30:123
2435039992420,2cyclictest2547348-21apt-get09:00:113
2435039992419,3cyclictest2440064-21ls07:15:003
243503999241,20cyclictest2629187-21apt-get10:20:113
243503999241,20cyclictest0-21swapper/312:00:123
243503999241,20cyclictest0-21swapper/311:00:123
243503999241,19cyclictest0-21swapper/308:35:113
243503999240,22cyclictest2546174-21grep08:55:223
243503999240,21cyclictest0-21swapper/312:05:113
243503999240,20cyclictest0-21swapper/311:34:223
243503999240,1cyclictest64-21kcompactd009:30:103
2435036992420,2cyclictest2492069-21irqcore08:05:172
243503699241,3cyclictest2510851-21ntpq08:20:212
243503699241,21cyclictest2711124-21apt-get11:40:122
243503699241,20cyclictest0-21swapper/209:15:102
243503499242,2cyclictest2608962-21apt-get10:00:121
243503499240,4cyclictest2536970-21cron08:50:001
243503499240,22cyclictest2435739-21ps07:10:151
243503499240,21cyclictest2522085-21chrt08:35:111
243503499240,20cyclictest2710432-21apt-get11:40:031
2435029992420,2cyclictest2542303-21apt-get08:55:130
2435029992418,4cyclictest2562639-21cron09:15:010
2435039992317,4cyclictest2715901-21cron11:45:003
2435039992317,1cyclictest0-21swapper/311:35:133
2435039992317,1cyclictest0-21swapper/310:40:123
2435039992316,2cyclictest0-21swapper/311:05:123
243503999231,2cyclictest2721233-21apt-get11:50:123
243503999231,20cyclictest0-21swapper/308:20:113
243503999231,19cyclictest0-21swapper/311:20:133
243503999230,3cyclictest2567975-21apt-get09:20:123
243503999230,20cyclictest0-21swapper/307:45:133
243503699232,20cyclictest2567975-21apt-get09:20:122
2435036992319,3cyclictest2481154-21cron07:54:592
2435036992319,2cyclictest2537247-21apt-get08:50:122
243503699231,3cyclictest2603882-21apt-get09:55:122
243503699231,2cyclictest2726767-21ps11:55:172
243503699231,2cyclictest2532194-21apt-get08:45:122
243503699231,2cyclictest0-21swapper/209:05:132
243503699231,21cyclictest2456044-21apt-get07:30:112
243503699231,21cyclictest2445433-21apt-get07:20:122
243503699231,20cyclictest0-21swapper/208:15:122
243503499232,2cyclictest2685374-21apt-get11:15:111
2435034992320,2cyclictest2629187-21apt-get10:20:121
2435034992319,2cyclictest2700566-21apt-get11:30:121
2435034992319,2cyclictest2690457-21apt-get11:20:131
2435034992319,2cyclictest2634266-21apt-get10:25:131
2435034992318,4cyclictest2741176-21cron12:10:001
243503499231,2cyclictest2619094-21apt-get10:10:121
243503499231,2cyclictest0-21swapper/110:05:121
243503499231,21cyclictest0-21swapper/111:56:251
243503499230,21cyclictest2628910-21cron10:20:001
243503499230,21cyclictest2527114-21/usr/sbin/munin08:40:121
2435029992320,2cyclictest2461094-21apt-get07:35:120
2435029992320,1cyclictest2552828-21apt-get09:05:120
243502999231,2cyclictest2731322-21apt-get12:00:120
243502999231,20cyclictest2762533-21/usr/sbin/munin12:30:160
243502999231,1cyclictest2522080-21apt-get08:35:100
2435039992218,2cyclictest2659288-21cron10:50:003
243503999221,1cyclictest2664634-21apt-get10:55:143
243503999220,21cyclictest2761381-21cron12:30:003
243503999220,19cyclictest0-21swapper/308:05:133
243503999220,18cyclictest0-21swapper/309:15:113
2435036992218,2cyclictest2639732-21hddtemp_smartct10:30:162
2435036992218,2cyclictest2639732-21hddtemp_smartct10:30:162
2435036992217,3cyclictest2710447-21cut11:40:012
243503699221,20cyclictest0-21swapper/210:55:152
243503699220,2cyclictest2593831-21ps09:45:142
243503699220,21cyclictest2455709-21cut07:30:012
243503699220,21cyclictest0-21swapper/209:40:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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