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2025-11-30 - 13:11
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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 Sun Nov 30, 2025 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
364996899272,21cyclictest4012924-21apt-get00:20:142
364996899271,22cyclictest3798586-21apt-get21:30:122
364996899261,3cyclictest3853165-21ntpq22:10:212
364996899261,22cyclictest3868106-21taskset22:25:122
364996099262,21cyclictest3706708-21apt-get20:05:141
364996099261,21cyclictest3969015-21apt-get23:45:131
364997699252,20cyclictest4032662-21apt-get00:35:143
3649976992520,3cyclictest3931348-21apt-get23:15:123
364997699251,20cyclictest3655600-21apt-get19:15:153
364996899252,2cyclictest3772866-21apt-get21:10:162
3649968992520,3cyclictest3861738-21apt-get22:20:132
3649968992520,3cyclictest3767700-21apt-get21:05:152
3649968992520,3cyclictest3767700-21apt-get21:05:152
364996899251,21cyclictest3792345-21apt-get21:25:132
364996899251,21cyclictest3772536-21diskmemload21:35:052
364996099252,20cyclictest3716867-21apt-get20:15:141
3649960992520,3cyclictest3696475-21apt-get19:55:131
3649954992519,5cyclictest3772536-21diskmemload21:33:150
364997699241,20cyclictest3772536-21diskmemload21:30:083
364997699240,22cyclictest3953766-21kthreadcore23:30:173
364997699240,22cyclictest3953766-21kthreadcore23:30:163
3649968992420,3cyclictest3956470-21apt-get23:35:122
3649968992419,3cyclictest3779456-21ssh21:15:132
3649968992419,1cyclictest191rcu_preempt00:00:512
364996899241,3cyclictest4006685-21apt-get00:15:112
364996899241,3cyclictest3772536-21diskmemload00:37:062
364996899241,3cyclictest0-21swapper/223:55:462
364996899241,3cyclictest0-21swapper/222:45:132
364996899241,2cyclictest0-21swapper/223:15:302
364996899241,22cyclictest3950238-21ssh23:30:122
364996899241,22cyclictest3950238-21ssh23:30:112
364996899241,22cyclictest3772536-21diskmemload22:32:452
364996899241,21cyclictest686-21snmpd21:52:332
364996899241,21cyclictest3772536-21diskmemload23:07:562
364996899241,21cyclictest3772536-21diskmemload22:54:352
364996899241,21cyclictest3772536-21diskmemload22:16:132
364996899241,21cyclictest0-21swapper/200:05:132
364996899240,2cyclictest0-21swapper/219:35:142
364996899240,22cyclictest4000431-21runrttasks00:10:142
364996899240,22cyclictest3981264-21cron23:55:002
364996899240,21cyclictest0-21swapper/220:50:132
364996099241,21cyclictest0-21swapper/122:25:121
364996099241,20cyclictest64-21kcompactd021:45:051
364996099240,23cyclictest3998922-21ssh00:06:121
364995499242,2cyclictest3691383-21apt-get19:50:130
3649954992421,2cyclictest3676062-21apt-get19:35:140
364995499241,21cyclictest3925001-21apt-get23:10:120
364995499241,20cyclictest3742313-21apt-get20:40:150
364995499240,22cyclictest3918778-21ssh23:05:110
3649976992320,2cyclictest3900060-21apt-get22:50:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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