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2025-12-18 - 17:30
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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 Thu Dec 18, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40817402234175,19sleep40-21swapper/407:09:054
40795212228169,18sleep50-21swapper/507:05:045
40795542225167,19sleep00-21swapper/007:05:310
40817202220166,17sleep20-21swapper/207:08:472
40817852218166,17sleep10-21swapper/107:09:411
40817872215185,19sleep30-21swapper/307:09:443
40816952210183,17sleep70-21swapper/707:08:277
40796342208174,21sleep60-21swapper/607:06:416
408204599320,27cyclictest0-21swapper/612:13:166
408204599320,27cyclictest0-21swapper/612:13:166
408202499320,30cyclictest4174976-21apt10:00:010
408204999310,30cyclictest369-21systemd-journal08:50:017
4082045993127,3cyclictest0-21swapper/609:40:036
408204399310,30cyclictest66024-21apt-get12:38:165
408203999310,30cyclictest4112246-21sh08:05:014
408203799310,30cyclictest49232-21apt12:05:023
408202499310,29cyclictest0-21swapper/010:13:150
4082045993027,3cyclictest0-21swapper/611:15:006
4082045993027,3cyclictest0-21swapper/607:55:016
4082043993027,2cyclictest369-21systemd-journal11:00:015
408204399301,1cyclictest8565-21sh10:50:005
408204399300,29cyclictest4142781-21apt-get09:03:165
408203399300,29cyclictest0-21swapper/211:18:162
408202999300,29cyclictest4191670-21idleruntime-cro10:30:001
408202999300,29cyclictest4161515-21dump-pmu-power09:35:001
408202999300,29cyclictest4117621-21latency_hist08:15:011
408202499301,28cyclictest38463-21debian-sa111:45:020
408202499300,29cyclictest4158650-21awk09:30:010
408202499300,29cyclictest4147787-21diskmemload09:10:010
4082049992927,1cyclictest24720-21cron11:20:017
4082049992927,1cyclictest0-21swapper/711:28:157
4082049992925,3cyclictest369-21systemd-journal07:40:027
408204999290,28cyclictest0-21swapper/709:43:167
408204999290,28cyclictest0-21swapper/707:58:177
408204999290,1cyclictest0-21swapper/710:05:017
4082045992927,1cyclictest4183965-21apt-get10:18:176
4082045992927,1cyclictest0-21swapper/611:20:016
4082045992927,1cyclictest0-21swapper/610:58:176
4082045992925,3cyclictest0-21swapper/609:50:006
408204599290,2cyclictest4107495-21apt-get07:58:156
408204599290,28cyclictest4101508-21awk07:45:026
408204599290,1cyclictest41159-21munin-run11:50:026
4082043992929,0cyclictest0-21swapper/508:15:025
408204399290,28cyclictest0-21swapper/511:53:175
408204399290,28cyclictest0-21swapper/511:48:175
408204399290,28cyclictest0-21swapper/509:33:165
4082039992927,1cyclictest4153155-21cron09:20:014
408203999290,1cyclictest4123664-21apt-get08:28:144
4082037992928,1cyclictest0-21swapper/310:40:013
4082037992927,1cyclictest51918-21idleruntime-cro12:10:023
4082037992927,1cyclictest51918-21idleruntime-cro12:10:013
4082037992927,1cyclictest4170243-21apt-get09:53:153
4082037992927,1cyclictest0-21swapper/310:10:013
408203799290,28cyclictest0-21swapper/312:13:153
408203799290,28cyclictest0-21swapper/312:13:153
408203799290,28cyclictest0-21swapper/310:33:173
408203799290,28cyclictest0-21swapper/308:53:143
408203799290,28cyclictest0-21swapper/308:38:153
408203799290,1cyclictest6525-21apt-get10:48:163
408203799290,1cyclictest4126358-21apt-get08:33:173
408203399290,28cyclictest4090722-21systemctl07:25:012
408203399290,28cyclictest0-21swapper/209:28:152
408203399290,28cyclictest0-21swapper/208:43:182
408203399290,28cyclictest0-21swapper/207:43:162
408203399290,1cyclictest4104809-21apt-get07:53:182
408203399290,1cyclictest0-21swapper/210:05:002
4082029992928,1cyclictest0-21swapper/110:58:161
4082029992928,1cyclictest0-21swapper/110:23:151
4082029992928,1cyclictest0-21swapper/108:58:161
4082029992927,1cyclictest0-21swapper/108:18:171
408202999290,28cyclictest0-21swapper/111:38:171
4082024992927,1cyclictest4123664-21apt-get08:28:140
408202499290,28cyclictest4132016-21apt-get08:43:170
408202499290,28cyclictest4129303-21apt-get08:38:150
408202499290,28cyclictest0-21swapper/011:23:170
408202499290,28cyclictest0-21swapper/010:43:170
408202499290,28cyclictest0-21swapper/008:48:160
408202499290,28cyclictest0-21swapper/008:33:180
4082049992827,1cyclictest0-21swapper/711:08:167
408204999280,28cyclictest0-21swapper/707:20:027
408204999280,0cyclictest0-21swapper/712:13:177
408204999280,0cyclictest0-21swapper/712:13:177
4082045992827,1cyclictest771ktimers/611:03:146
4082045992827,1cyclictest4093414-21systemd-run07:30:016
4082045992826,2cyclictest0-21swapper/607:18:116
408204599280,27cyclictest0-21swapper/609:38:156
408204599280,0cyclictest0-21swapper/609:18:176
4082039992827,1cyclictest0-21swapper/408:08:154
4082039992827,0cyclictest0-21swapper/411:38:164
4082039992826,1cyclictest4155875-21dump-pmu-power09:25:014
4082039992826,1cyclictest0-21swapper/408:23:154
408203999280,28cyclictest0-21swapper/411:28:164
408203999280,28cyclictest0-21swapper/410:45:004
408203999280,28cyclictest0-21swapper/408:13:154
408203999280,28cyclictest0-21swapper/407:30:024
4082037992828,0cyclictest0-21swapper/310:18:163
4082037992826,1cyclictest0-21swapper/310:05:023
4082033992827,1cyclictest0-21swapper/212:30:022
4082033992827,1cyclictest0-21swapper/211:08:172
4082033992827,1cyclictest0-21swapper/207:28:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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