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2026-08-12 - 13:51
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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 Wed Aug 12, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313439099348,25cyclictest0-21swapper/123:00:001
313439099331,4cyclictest3777322-21systemd-journal21:50:001
313439699321,23cyclictest3185868-21irqcore20:00:203
313439699301,20cyclictest0-21swapper/300:15:143
313439699300,22cyclictest3419825-21cron23:50:003
3134390993020,8cyclictest3144742-21apt-get19:20:121
313439699291,2cyclictest3307551-21apt-get22:00:143
3134393992926,2cyclictest3230886-21apt-key20:45:012
313439099292,18cyclictest3460592-21cron00:29:591
313439699282,21cyclictest3256842-21apt-get21:10:133
313439699281,6cyclictest3195228-21basename20:10:003
313439699280,20cyclictest0-21swapper/319:20:133
3134390992817,10cyclictest3419853-21idleruntime-cro23:49:591
313439099280,2cyclictest3332687-21basename22:25:011
3134396992718,2cyclictest3237040-21irqcore20:50:163
313439399272,21cyclictest3215822-21apt-get20:30:132
313439399271,22cyclictest3236537-21apt-get20:50:132
313439399271,21cyclictest0-21swapper/223:25:122
313439099272,2cyclictest3394663-21apt-get23:25:121
3134390992716,10cyclictest3259066-21sort21:10:191
313439699261,21cyclictest3389594-21chrt23:20:113
313439699261,21cyclictest0-21swapper/322:05:123
313439699260,23cyclictest3384220-21apt-config23:15:013
313439399261,5cyclictest3777322-21systemd-journal21:35:002
313439399261,22cyclictest3292727-21sshd21:45:142
3134390992619,5cyclictest3287275-21apt-get21:40:121
3134390992619,5cyclictest3180272-21apt-get19:55:131
3134390992618,7cyclictest3465660-21cron00:34:591
313439099261,2cyclictest3430337-21apt-get00:00:131
313439099261,20cyclictest3409922-21apt-get23:40:141
313439699251,4cyclictest3358346-21cat22:50:013
313439399252,2cyclictest3445497-21apt-get00:15:132
313439399252,20cyclictest0-21swapper/220:10:182
313439399251,22cyclictest3777322-21systemd-journal19:49:592
313439399251,21cyclictest0-21swapper/221:25:132
313439399251,20cyclictest3420104-21apt-get23:50:132
313439399251,20cyclictest3332933-21apt-get22:25:092
313439399251,20cyclictest0-21swapper/219:30:122
313439099251,20cyclictest3384500-21apt-get23:15:121
313439099250,22cyclictest3358710-21apt-get22:50:131
3134387992520,3cyclictest3292344-21apt-get21:45:120
313438799251,22cyclictest3777322-21systemd-journal22:25:010
3134396992419,1cyclictest0-21swapper/323:05:333
3134396992419,1cyclictest0-21swapper/300:00:143
313439699241,3cyclictest3460875-21apt-get00:30:123
313439699241,2cyclictest3134603-21apt-get19:10:113
313439699241,20cyclictest0-21swapper/319:30:123
313439699240,23cyclictest3230854-21apt-config20:45:013
3134393992420,2cyclictest3440426-21apt-get00:10:112
3134393992420,2cyclictest3384500-21apt-get23:15:122
313439399241,21cyclictest3470723-21munin-run00:40:002
313439399241,21cyclictest3154625-21cron19:30:002
313439399241,20cyclictest0-21swapper/223:55:142
313439099241,20cyclictest3353214-21apt-get22:45:111
313439099241,20cyclictest3170106-21apt-get19:45:121
313439099240,1cyclictest0-21swapper/120:23:451
3134387992420,2cyclictest3363779-21apt-get22:55:110
313438799240,23cyclictest64-21kcompactd022:35:280
313438799240,20cyclictest0-21swapper/023:50:130
313439699231,19cyclictest0-21swapper/321:50:103
313439699230,22cyclictest3362552-21strings22:50:203
313439699230,20cyclictest0-21swapper/320:45:153
313439699230,20cyclictest0-21swapper/319:25:123
313439699230,20cyclictest0-21swapper/300:25:113
313439699230,20cyclictest0-21swapper/300:20:133
313439699230,20cyclictest0-21swapper/300:05:163
3134393992321,1cyclictest3383825-21turbostat23:15:002
3134393992319,2cyclictest3190462-21apt-get20:05:192
3134393992319,2cyclictest3165038-21apt-get19:40:122
3134393992318,4cyclictest3450815-21fschecks_count00:20:152
3134393992317,4cyclictest3327874-21taskset22:20:112
313439399231,3cyclictest0-21swapper/222:55:112
313439399231,2cyclictest3342771-21cron22:35:002
313439399231,2cyclictest0-21swapper/221:35:132
313439399231,2cyclictest0-21swapper/220:25:132
313439399231,21cyclictest0-21swapper/221:55:212
313439399230,20cyclictest0-21swapper/223:05:142
313439399230,20cyclictest0-21swapper/223:00:102
313439399230,20cyclictest0-21swapper/220:35:142
313439399230,19cyclictest0-21swapper/219:35:122
313439399230,19cyclictest0-21swapper/219:35:112
3134390992319,2cyclictest3348121-21apt-get22:40:101
3134390992319,2cyclictest3241611-21apt-get20:55:131
3134390992319,2cyclictest3149810-21apt-get19:25:121
3134390992318,3cyclictest0-21swapper/122:15:131
3134390992313,4cyclictest3373684-21cron23:05:001
313439099231,2cyclictest3225997-21apt-get20:40:101
313439099230,22cyclictest3211190-21irqcore20:25:171
313439099230,21cyclictest0-21swapper/123:10:131
313439099230,20cyclictest3261909-21apt-get21:15:121
313439099230,19cyclictest0-21swapper/121:30:131
313439099230,19cyclictest0-21swapper/120:05:201
313438799231,21cyclictest3404828-21apt-get23:35:120
313438799231,20cyclictest3251771-21apt-get21:05:140
3134396992219,1cyclictest0-21swapper/319:45:123
3134396992218,3cyclictest3347846-21cron22:40:003
3134396992218,2cyclictest3160457-21irqcore19:35:173
3134396992218,2cyclictest3160457-21irqcore19:35:173
3134396992218,2cyclictest0-21swapper/323:40:143
3134396992217,2cyclictest3405331-21sed23:35:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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