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2026-05-15 - 11:38
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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 Fri May 15, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11602932236170,20sleep70-21swapper/719:09:037
11601682232165,21sleep30-21swapper/319:07:143
11602812231166,20sleep40-21swapper/419:08:524
11600672225165,20sleep60-21swapper/619:05:486
11603062217159,19sleep20-21swapper/219:09:142
11603312214182,21sleep00-21swapper/019:09:360
11600602213185,19sleep10-21swapper/119:05:421
11602912212185,18sleep50-21swapper/519:09:015
116058399350,4cyclictest1286993-21apt-get22:55:137
116056899340,2cyclictest1-21systemd20:05:021
116057099330,32cyclictest1325576-21unix_chkpwd00:05:022
116056599330,28cyclictest0-21swapper/023:00:150
116058399320,31cyclictest0-21swapper/723:15:147
116058399320,0cyclictest0-21swapper/723:05:137
116058099320,31cyclictest1253182-21awk21:55:006
1160576993227,4cyclictest1220082-21apt-get20:55:144
1160583993129,1cyclictest0-21swapper/720:55:137
116058399310,30cyclictest1295386-21apt-get23:10:157
116058099310,1cyclictest1191855-21920:05:016
1160574993128,2cyclictest964-21in:imuxsock19:35:013
116056599310,30cyclictest0-21swapper/021:30:140
116056599310,0cyclictest0-21swapper/021:50:140
1160583993028,1cyclictest0-21swapper/700:00:027
116058399300,30cyclictest1-21systemd20:00:007
116058399300,29cyclictest1306077-21cron23:30:017
116058399300,29cyclictest0-21swapper/722:40:147
116058399300,29cyclictest0-21swapper/700:15:137
116058399300,0cyclictest0-21swapper/721:35:157
1160580993026,3cyclictest1175536-21apt-get19:35:126
116057999300,29cyclictest72-21ksoftirqd/523:10:155
116057999300,29cyclictest1228043-21921:10:015
116057999300,29cyclictest0-21swapper/523:30:025
116057499300,29cyclictest1239622-21apt-get21:30:133
116057499300,29cyclictest0-21swapper/323:45:013
116057499300,29cyclictest0-21swapper/321:10:013
116057499300,29cyclictest0-21swapper/300:10:123
1160570993027,2cyclictest1-21systemd19:15:022
116057099300,29cyclictest1259165-21chrt22:05:132
116056899300,1cyclictest1292216-21appstreamcli23:05:031
116056599300,29cyclictest0-21swapper/020:50:020
1160583992926,3cyclictest0-21swapper/722:45:157
1160583992926,3cyclictest0-21swapper/722:45:157
116058399290,29cyclictest1-21systemd19:25:017
116058399290,28cyclictest1183895-21apt-get19:50:127
116058399290,28cyclictest0-21swapper/723:45:147
116058399290,28cyclictest0-21swapper/700:25:137
116058399290,1cyclictest0-21swapper/722:00:017
116058399290,1cyclictest0-21swapper/700:30:127
1160580992927,2cyclictest1-21systemd21:40:016
116058099290,28cyclictest0-21swapper/620:45:136
116058099290,28cyclictest0-21swapper/620:05:156
116058099290,28cyclictest0-21swapper/619:25:126
116058099290,1cyclictest1337935-21apt-get00:25:146
116058099290,1cyclictest1217297-21apt-get20:50:126
116058099290,1cyclictest0-21swapper/600:10:146
1160579992928,1cyclictest72-21ksoftirqd/521:10:155
116057999290,28cyclictest1247979-21apt-get21:45:145
116057999290,28cyclictest1160898-21apt-get19:10:135
116057999290,28cyclictest0-21swapper/523:55:145
116057999290,28cyclictest0-21swapper/521:35:145
116057999290,28cyclictest0-21swapper/520:25:025
116057999290,28cyclictest0-21swapper/519:50:135
116057999290,1cyclictest701rcuc/521:15:155
1160576992927,1cyclictest1230815-21cron21:15:014
1160576992927,1cyclictest1197802-21apt-get20:15:124
116057699290,28cyclictest1225265-21unin-run21:05:014
116057699290,28cyclictest1203380-21apt-get20:25:114
116057699290,28cyclictest0-21swapper/422:40:144
116057699290,28cyclictest0-21swapper/421:25:014
1160574992928,1cyclictest290-21plymouthd22:40:013
1160574992928,1cyclictest1216902-21920:50:023
116057499290,28cyclictest1340709-21apt-get00:30:133
116057499290,28cyclictest0-21swapper/322:10:133
116057499290,28cyclictest0-21swapper/321:40:123
116057499290,28cyclictest0-21swapper/320:40:023
116057499290,28cyclictest0-21swapper/300:15:133
116057499290,1cyclictest290-21plymouthd20:10:023
116057499290,1cyclictest0-21swapper/319:55:013
116057099291,1cyclictest81350irq/125-eno120:00:022
116057099290,29cyclictest856-21dbus-daemon22:30:012
116057099290,29cyclictest1-21systemd20:10:022
116057099290,28cyclictest1329578-21apt-get00:10:142
116057099290,28cyclictest1169974-21apt-get19:25:122
116057099290,28cyclictest0-21swapper/223:25:142
116057099290,28cyclictest0-21swapper/219:40:132
116057099290,1cyclictest0-21swapper/222:10:142
1160568992927,1cyclictest0-21swapper/121:45:141
1160568992927,1cyclictest0-21swapper/100:05:051
1160568992926,2cyclictest1177882-21cron19:40:011
116056899290,28cyclictest0-21swapper/123:40:131
116056899290,28cyclictest0-21swapper/120:15:121
116056899290,28cyclictest0-21swapper/120:05:151
116056899290,1cyclictest856-21dbus-daemon23:40:021
116056899290,1cyclictest0-21swapper/119:35:011
116056599290,29cyclictest856-21dbus-daemon00:15:020
116056599290,28cyclictest0-21swapper/020:50:130
116056599290,28cyclictest0-21swapper/020:45:020
116056599290,28cyclictest0-21swapper/020:15:120
116056599290,28cyclictest0-21swapper/019:55:120
116056599290,1cyclictest0-21swapper/023:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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