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2025-12-28 - 13:41
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack8slot4.osadl.org (updated Sun Dec 28, 2025 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38864232242181,20sleep50-21swapper/519:07:305
38884742237180,18sleep70-21swapper/719:09:097
38864652224168,19sleep10-21swapper/119:08:051
38884222219166,18sleep20-21swapper/219:08:302
38884882214185,19sleep30-21swapper/319:09:203
38864022214187,17sleep40-21swapper/419:07:124
38863802210165,15sleep00-21swapper/019:06:530
38863302210182,18sleep60-21swapper/619:06:106
388878199320,1cyclictest0-21swapper/720:20:027
3888781993126,4cyclictest681-21dbus-daemon21:40:017
388878199310,30cyclictest3961044-21apt-get21:23:157
388877599310,30cyclictest4012511-21apt-get22:58:155
388877099310,30cyclictest3979553-21turbostat.cron21:55:013
388876199310,30cyclictest369-21systemd-journal23:45:001
3888781993027,3cyclictest0-21swapper/700:08:157
388878199300,29cyclictest4038862-21dpkg23:45:007
3888770993026,0cyclictest0-21swapper/321:44:193
388877099300,29cyclictest3961044-21apt-get21:23:133
388877099300,0cyclictest0-21swapper/320:20:013
3888765993028,1cyclictest0-21swapper/222:58:162
388876599300,29cyclictest0-21swapper/220:28:142
3888756993028,1cyclictest0-21swapper/020:38:180
388878199290,29cyclictest3905481-21idleruntime-cro19:40:007
388878199290,28cyclictest4039710-21apt-get23:48:157
388878199290,28cyclictest0-21swapper/721:28:187
388878199290,28cyclictest0-21swapper/720:28:147
388878199290,28cyclictest0-21swapper/700:13:167
3888777992928,1cyclictest0-21swapper/620:58:166
3888777992927,2cyclictest3950014-21http21:03:176
3888777992927,1cyclictest0-21swapper/622:00:026
388877799290,28cyclictest4036764-21http23:43:146
388877799290,28cyclictest0-21swapper/623:53:176
388877799290,28cyclictest0-21swapper/623:08:146
388877799290,1cyclictest4066283-21apt00:35:016
388877799290,1cyclictest4015218-21apt-get23:03:156
388877799290,1cyclictest3998412-21dump-pmu-power22:30:016
388877799290,1cyclictest3995719-21sh22:25:026
388877799290,1cyclictest3988275-21apt-get22:13:156
388877799290,1cyclictest0-21swapper/600:40:016
3888775992927,1cyclictest0-21swapper/521:15:025
388877599290,2cyclictest3894717-21munin-run19:20:015
388877599290,28cyclictest3931154-21apt-get20:28:155
388877599290,28cyclictest3928464-21apt-get20:23:155
388877599290,28cyclictest0-21swapper/500:33:165
388877599290,1cyclictest3957434-21apt21:15:015
3888772992927,1cyclictest3941286-21apt20:45:014
3888772992927,1cyclictest3941286-21apt20:45:014
388877299290,28cyclictest4006502-21munin-run22:45:004
388877299290,28cyclictest0-21swapper/422:23:144
388877299290,28cyclictest0-21swapper/400:03:154
388877299290,1cyclictest4036760-21apt-get23:43:154
3888770992927,1cyclictest3906113-21latency_hist19:40:023
3888770992927,1cyclictest0-21swapper/323:13:143
3888770992926,0cyclictest0-21swapper/300:08:153
3888770992925,1cyclictest0-21swapper/321:45:023
3888770992925,1cyclictest0-21swapper/319:23:173
3888770992924,1cyclictest0-21swapper/320:48:153
3888770992924,1cyclictest0-21swapper/320:48:143
388877099290,28cyclictest1-21systemd21:40:023
388877099290,28cyclictest0-21swapper/323:33:173
388877099290,28cyclictest0-21swapper/322:20:013
388877099290,28cyclictest0-21swapper/320:28:153
388877099290,28cyclictest0-21swapper/319:28:163
388877099290,1cyclictest3916766-21idleruntime-cro20:00:003
3888765992927,1cyclictest4009819-21apt-get22:53:142
3888765992927,1cyclictest0-21swapper/219:48:172
388876599290,28cyclictest3919545-21apt-config20:05:012
388876599290,28cyclictest0-21swapper/223:48:162
388876599290,28cyclictest0-21swapper/223:43:142
388876599290,28cyclictest0-21swapper/222:28:182
388876599290,28cyclictest0-21swapper/221:53:162
388876599290,28cyclictest0-21swapper/221:25:022
388876599290,1cyclictest4020590-21apt-get23:13:142
3888761992928,1cyclictest0-21swapper/123:53:181
3888761992928,1cyclictest0-21swapper/120:23:151
388876199290,28cyclictest0-21swapper/123:13:141
388876199290,28cyclictest0-21swapper/100:28:141
388876199290,1cyclictest3949350-21turbostat.cron21:00:021
388876199290,1cyclictest3933846-21apt-get20:33:171
388876199290,1cyclictest0-21swapper/122:33:151
3888756992928,1cyclictest0-21swapper/000:38:160
3888756992927,2cyclictest3946656-21cron20:55:010
388875699290,29cyclictest4033405-21sh23:35:010
388875699290,28cyclictest0-21swapper/021:18:140
388875699290,28cyclictest0-21swapper/020:43:160
388875699290,28cyclictest0-21swapper/020:43:160
388875699290,28cyclictest0-21swapper/019:58:160
388875699290,28cyclictest0-21swapper/019:23:160
3888781992827,1cyclictest4028678-21apt-get23:28:157
3888781992824,4cyclictest0-21swapper/721:45:017
388878199280,1cyclictest4007137-21apt-get22:48:157
388878199280,0cyclictest0-21swapper/719:25:007
388877799280,27cyclictest0-21swapper/619:48:166
388877799280,0cyclictest0-21swapper/621:38:156
3888775992826,1cyclictest0-21swapper/520:35:015
388877599280,27cyclictest0-21swapper/519:48:165
3888772992826,1cyclictest4042401-21apt-get23:53:174
3888772992826,1cyclictest0-21swapper/422:28:194
388877299280,27cyclictest3952697-21apt-get21:08:164
388877299280,27cyclictest0-21swapper/420:18:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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