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2026-05-12 - 18:32
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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 Tue May 12, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12972572235174,50sleep60-21swapper/607:05:586
12972572235174,50sleep60-21swapper/607:05:576
12974002218185,24sleep10-21swapper/107:08:021
12974002218185,24sleep10-21swapper/107:08:011
12975302217164,16sleep70-21swapper/707:09:527
12975302217164,16sleep70-21swapper/707:09:527
12974492213181,21sleep30-21swapper/307:08:453
12974492213181,21sleep30-21swapper/307:08:453
12973092209181,19sleep20-21swapper/207:06:422
12973092209181,19sleep20-21swapper/207:06:422
12974222206177,19sleep50-21swapper/507:08:225
12974222206177,19sleep50-21swapper/507:08:225
12973112204173,20sleep40-21swapper/407:06:444
12973112204173,20sleep40-21swapper/407:06:444
12972782204176,19sleep00-21swapper/007:06:160
12972782204176,19sleep00-21swapper/007:06:150
1297786993328,4cyclictest1482433-21cron12:40:024
129779299320,4cyclictest1468971-21seq12:15:137
129779299320,31cyclictest1462962-21cron12:05:017
1297784993232,0cyclictest0-21swapper/311:30:133
1297780993227,4cyclictest1368082-21cron09:15:012
129779299310,1cyclictest0-21swapper/707:15:027
129779299310,1cyclictest0-21swapper/707:15:027
129779099310,30cyclictest1343015-21apt-get08:30:046
129778899312,1cyclictest1421060-21sh10:50:015
129778899312,1cyclictest1421060-21sh10:50:005
129779099300,28cyclictest374-21systemd-journal09:00:026
1297786993028,1cyclictest856-21dbus-daemon08:30:024
1297784993028,1cyclictest0-21swapper/310:55:013
129778499300,1cyclictest1379666-21apt-get09:35:153
129778099300,2cyclictest1359685-21cron09:00:022
129778099300,29cyclictest1477327-21apt-get12:30:122
1297778993027,2cyclictest1443389-21cron11:30:011
1297775993029,1cyclictest0-21swapper/012:20:020
129777599300,2cyclictest374-21systemd-journal12:10:020
1297792992928,1cyclictest0-21swapper/711:00:017
1297792992928,1cyclictest0-21swapper/711:00:017
129779299290,29cyclictest1440639-21munin-run11:25:017
129779299290,28cyclictest1362960-21apt-get09:05:137
129779299290,28cyclictest0-21swapper/710:50:037
129779299290,28cyclictest0-21swapper/708:35:137
1297790992928,1cyclictest0-21swapper/610:35:156
1297790992928,1cyclictest0-21swapper/608:10:136
129779099290,28cyclictest1382018-21munin-run09:40:016
129779099290,28cyclictest1-21systemd12:35:026
129779099290,28cyclictest0-21swapper/611:55:166
129779099290,28cyclictest0-21swapper/611:40:016
129779099290,28cyclictest0-21swapper/610:45:126
129779099290,28cyclictest0-21swapper/610:45:126
129779099290,28cyclictest0-21swapper/610:10:156
129779099290,28cyclictest0-21swapper/608:15:166
129779099290,28cyclictest0-21swapper/607:50:156
129779099290,28cyclictest0-21swapper/607:15:146
1297788992928,1cyclictest1340615-21apt-get08:25:145
1297788992927,2cyclictest1432269-21cron11:10:015
1297788992927,1cyclictest1454575-21cron11:50:015
1297788992927,1cyclictest1421539-21apt-get10:50:135
129778899290,28cyclictest0-21swapper/512:20:145
129778899290,28cyclictest0-21swapper/512:15:145
129778899290,28cyclictest0-21swapper/512:10:125
129778899290,28cyclictest0-21swapper/509:25:145
129778899290,28cyclictest0-21swapper/507:10:145
129778899290,28cyclictest0-21swapper/507:10:145
1297786992927,1cyclictest0-21swapper/411:30:014
129778699290,28cyclictest1309969-21apt-get07:30:164
129778699290,28cyclictest0-21swapper/411:55:164
129778699290,28cyclictest0-21swapper/411:00:144
129778699290,28cyclictest0-21swapper/410:55:024
129778699290,28cyclictest0-21swapper/409:35:144
129778699290,28cyclictest0-21swapper/409:10:164
129778699290,28cyclictest0-21swapper/408:40:144
129778699290,28cyclictest0-21swapper/407:20:154
129778699290,28cyclictest0-21swapper/407:15:134
129778699290,1cyclictest0-21swapper/408:25:024
129778499290,28cyclictest0-21swapper/312:00:153
129778499290,28cyclictest0-21swapper/309:45:143
129778499290,28cyclictest0-21swapper/309:40:143
129778499290,1cyclictest290-21plymouthd07:55:013
129778499290,1cyclictest290-21plymouthd07:50:023
129778499290,1cyclictest0-21swapper/309:15:143
129778499290,1cyclictest0-21swapper/308:20:123
1297780992928,1cyclictest1446664-21apt-get11:35:162
1297780992927,1cyclictest1304410-21apt-get07:20:152
129778099290,28cyclictest856-21dbus-daemon12:00:022
129778099290,28cyclictest1455048-21apt-get11:50:132
129778099290,28cyclictest1376885-21apt-get09:30:132
129778099290,28cyclictest0-21swapper/211:50:022
129778099290,28cyclictest0-21swapper/210:40:152
129778099290,1cyclictest1395977-21cron10:05:012
129778099290,1cyclictest0-21swapper/209:40:012
1297778992926,2cyclictest1390402-21cron09:55:011
129777899290,28cyclictest36-21ksoftirqd/111:40:141
129777899290,28cyclictest0-21swapper/110:45:131
129777899290,28cyclictest0-21swapper/110:45:131
129777899290,28cyclictest0-21swapper/109:05:031
129777899290,28cyclictest0-21swapper/108:15:151
129777899290,1cyclictest1437888-21911:20:001
1297775992928,1cyclictest0-21swapper/009:20:010
129777599290,29cyclictest1457380-21unix_chkpwd11:55:010
129777599290,29cyclictest0-21swapper/009:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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