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2026-08-15 - 18:10
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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 Sat Aug 15, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8461622228165,19sleep30-21swapper/307:07:093
8463512224164,19sleep60-21swapper/607:09:536
8463462224165,18sleep10-21swapper/107:09:471
8462332223161,50sleep00-21swapper/007:08:090
8439982223194,19sleep70-21swapper/707:05:037
8462462222159,53sleep40-21swapper/407:08:234
8462442218188,20sleep20-21swapper/207:08:212
8463502216186,20sleep50-21swapper/507:09:525
99678521380,0sleep00-21swapper/011:36:290
10082542420,0sleep7881rcuc/711:56:297
84657899350,29cyclictest964294-21cron10:40:014
84657599340,32cyclictest1008878-21sh12:00:023
84658099330,28cyclictest998247-21apt-get11:41:235
84658099330,1cyclictest0-21swapper/511:21:215
846578993327,5cyclictest961502-21latency_hist10:35:014
84657599330,31cyclictest978230-21cron11:05:013
84657599330,31cyclictest978230-21cron11:05:003
84657599320,31cyclictest1-21systemd08:30:013
846572993227,4cyclictest863896-21cron07:40:002
84656899320,4cyclictest900164-21cron08:45:010
84658699310,3cyclictest1-21systemd10:15:017
84658299310,30cyclictest1-21systemd09:30:016
84658099310,1cyclictest0-21swapper/511:31:235
84658099310,0cyclictest0-21swapper/511:26:215
846578993126,0cyclictest0-21swapper/411:05:014
846578993126,0cyclictest0-21swapper/411:05:014
84657899310,30cyclictest0-21swapper/407:31:234
84657899310,30cyclictest0-21swapper/407:26:224
84657599310,2cyclictest880632-21cron08:10:023
84656999310,30cyclictest1-21systemd07:50:011
846586993029,1cyclictest880682-21sqv08:10:027
84658699300,30cyclictest1028459-21basename12:35:027
84658299300,29cyclictest961605-21latency_hist10:35:016
84658299300,29cyclictest900169-21cron08:45:016
846575993026,3cyclictest382-21systemd-journal11:40:003
84657599300,30cyclictest382-21systemd-journal10:35:013
84657599300,29cyclictest881183-21apt-get08:11:223
84657599300,29cyclictest0-21swapper/311:20:013
84657599300,1cyclictest0-21swapper/311:45:003
846572993028,2cyclictest886224-21cron08:20:022
84657299300,29cyclictest916885-21munin-run09:15:012
84657299300,29cyclictest0-21swapper/211:15:012
846568993029,1cyclictest1003286-21cron11:50:020
84656899300,29cyclictest1028422-21cron12:35:020
84656899300,29cyclictest0-21swapper/009:46:220
84658699290,29cyclictest973176-21apt-get10:56:227
84658699290,28cyclictest909035-21apt-get09:01:227
84658699290,28cyclictest883966-21apt-get08:16:247
84658699290,1cyclictest1-21systemd08:35:017
846582992927,1cyclictest0-21swapper/608:16:236
84658299290,28cyclictest0-21swapper/612:31:226
84658299290,28cyclictest0-21swapper/612:15:016
84658299290,28cyclictest0-21swapper/611:51:236
84658299290,28cyclictest0-21swapper/611:46:236
84658299290,28cyclictest0-21swapper/610:56:216
84658299290,28cyclictest0-21swapper/610:06:216
84658299290,28cyclictest0-21swapper/609:25:006
84658299290,28cyclictest0-21swapper/609:16:206
84658299290,1cyclictest1023380-21apt-get12:26:226
846580992928,1cyclictest921-21dbus-daemon10:50:005
846580992927,2cyclictest0-21swapper/511:56:215
84658099290,28cyclictest0-21swapper/512:15:015
84658099290,28cyclictest0-21swapper/510:30:045
84658099290,1cyclictest922972-21apt-get09:26:235
84658099290,1cyclictest0-21swapper/508:45:015
846578992928,1cyclictest892318-21apt-get08:31:234
846578992926,0cyclictest0-21swapper/411:46:224
84657899290,28cyclictest0-21swapper/408:10:044
846575992928,1cyclictest967102-21sh10:45:013
846575992927,1cyclictest914080-21cron09:10:013
846575992927,1cyclictest382-21systemd-journal12:40:013
846575992925,3cyclictest955903-21cron10:25:003
84657599290,28cyclictest1-21systemd11:10:013
84657599290,28cyclictest1-21systemd11:10:013
84657599290,28cyclictest1026158-21apt-get12:31:213
84657599290,28cyclictest1001029-21apt-get11:46:233
84657599290,28cyclictest0-21swapper/309:51:233
84657599290,1cyclictest0-21swapper/309:01:203
84657299290,28cyclictest0-21swapper/211:31:232
84657299290,28cyclictest0-21swapper/211:26:222
84657299290,28cyclictest0-21swapper/209:40:012
84657299290,28cyclictest0-21swapper/207:21:232
84657299290,1cyclictest0-21swapper/211:20:012
84656999290,28cyclictest897907-21apt-get08:41:231
84656999290,28cyclictest0-21swapper/112:31:221
84656999290,28cyclictest0-21swapper/111:05:011
84656999290,28cyclictest0-21swapper/111:05:001
84656999290,28cyclictest0-21swapper/110:56:221
84656999290,28cyclictest0-21swapper/110:51:241
84656999290,28cyclictest0-21swapper/107:15:011
84656999290,28cyclictest0-21swapper/107:15:011
84656999290,1cyclictest978752-21apt-get11:06:211
84656999290,1cyclictest978752-21apt-get11:06:211
84656999290,1cyclictest911357-21unin-run09:05:011
84656999290,1cyclictest1028940-21apt-get12:36:231
84656999290,1cyclictest0-21swapper/108:05:021
846568992928,1cyclictest948026-21apt-get10:11:210
846568992927,1cyclictest289-21plymouthd11:35:020
84656899290,28cyclictest961572-21appstreamcli10:35:010
84656899290,28cyclictest867215-21apt-get07:46:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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