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2025-12-13 - 10:26
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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 Dec 13, 2025 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14641072219166,17sleep00-21swapper/019:08:570
14640632219166,42sleep10-21swapper/119:08:191
14641612212185,17sleep60-21swapper/619:09:446
14638782212184,18sleep30-21swapper/319:05:403
14641092210166,14sleep20-21swapper/219:09:002
14641352207179,18sleep70-21swapper/719:09:217
14640572205177,18sleep40-21swapper/419:08:134
14641812201171,19sleep50-21swapper/519:09:595
1464421993227,1cyclictest1525099-21apt-get21:03:165
146442199320,28cyclictest0-21swapper/520:03:155
146441699320,31cyclictest1466975-21debian-sa119:15:013
1464423993130,1cyclictest1622154-21tar00:00:006
1464423993127,3cyclictest1510724-21sh20:35:016
146442399310,3cyclictest369-21systemd-journal19:25:026
146441899310,29cyclictest369-21systemd-journal20:25:024
146442399300,29cyclictest1595002-21turbostat23:10:026
1464421993026,1cyclictest0-21swapper/500:23:135
146442199300,29cyclictest1572938-21sh22:30:005
146441899300,2cyclictest1510720-21sh20:35:004
1464416993028,1cyclictest1549371-21apt-get21:48:163
146441699300,29cyclictest1598323-21apt-get23:18:143
146441699300,29cyclictest1598323-21apt-get23:18:143
1464412993028,1cyclictest0-21swapper/219:30:012
1464412993028,1cyclictest0-21swapper/200:30:012
146441299300,2cyclictest0-21swapper/200:10:022
146441299300,29cyclictest0-21swapper/222:50:012
146441299300,29cyclictest0-21swapper/220:50:012
146441099300,29cyclictest1619211-21turbostat.cron23:55:021
146441099300,29cyclictest1616527-21apt23:50:021
146441099300,29cyclictest1609088-21apt-get23:38:131
146441099300,29cyclictest1578313-21cron22:40:011
1464406993027,2cyclictest1527141-21latency_hist21:05:000
146442799290,28cyclictest0-21swapper/721:48:167
146442799290,28cyclictest0-21swapper/721:18:177
146442799290,28cyclictest0-21swapper/700:33:127
146442799290,1cyclictest1491875-21idleruntime-cro20:00:017
146442399290,28cyclictest0-21swapper/623:13:146
146442399290,28cyclictest0-21swapper/621:23:166
1464421992927,2cyclictest1516762-21apt-get20:48:165
1464421992927,1cyclictest0-21swapper/521:35:015
146442199290,28cyclictest0-21swapper/523:33:165
1464416992927,1cyclictest0-21swapper/323:48:163
1464416992927,1cyclictest0-21swapper/320:28:163
1464416992927,1cyclictest0-21swapper/300:38:123
146441699290,28cyclictest0-21swapper/323:28:163
146441699290,28cyclictest0-21swapper/321:38:063
146441699290,28cyclictest0-21swapper/320:38:163
146441699290,28cyclictest0-21swapper/319:53:173
146441699290,0cyclictest0-21swapper/319:33:173
1464412992928,1cyclictest1584605-21apt-get22:53:142
1464412992927,1cyclictest0-21swapper/223:53:122
146441299290,28cyclictest1614484-21apt-get23:48:182
146441299290,28cyclictest0-21swapper/222:33:142
146441299290,28cyclictest0-21swapper/221:23:152
146441299290,28cyclictest0-21swapper/221:03:162
146441299290,28cyclictest0-21swapper/220:03:162
1464410992927,1cyclictest1530472-21apt-get21:13:171
1464410992927,1cyclictest0-21swapper/100:38:131
146441099290,28cyclictest0-21swapper/123:18:141
146441099290,28cyclictest0-21swapper/123:18:131
146441099290,28cyclictest0-21swapper/123:13:131
146441099290,28cyclictest0-21swapper/121:23:161
146440699290,28cyclictest0-21swapper/021:53:170
146440699290,1cyclictest1476382-21apt-get19:33:160
1464427992827,1cyclictest0-21swapper/700:08:137
146442799280,28cyclictest0-21swapper/721:25:017
146442399280,1cyclictest1481773-21apt-get19:43:166
146442199280,27cyclictest0-21swapper/523:48:165
1464418992827,0cyclictest0-21swapper/421:18:164
1464418992825,2cyclictest1559502-21munin-run22:05:004
1464416992827,1cyclictest0-21swapper/323:38:143
1464416992827,1cyclictest0-21swapper/323:25:013
1464416992826,1cyclictest1500600-21apt-get20:18:173
146441699280,0cyclictest0-21swapper/321:03:163
1464412992825,2cyclictest1559490-21latency_hist22:05:012
146441299280,0cyclictest0-21swapper/200:38:132
1464410992826,1cyclictest0-21swapper/123:43:161
1464410992826,1cyclictest0-21swapper/121:33:171
146441099280,28cyclictest0-21swapper/121:58:151
146441099280,27cyclictest0-21swapper/120:43:161
1464406992827,1cyclictest1619280-21dpkg23:55:020
1464406992826,1cyclictest0-21swapper/020:58:150
146440699280,28cyclictest0-21swapper/022:35:020
146440699280,27cyclictest0-21swapper/020:08:170
146440699280,0cyclictest0-21swapper/021:43:170
146440699280,0cyclictest0-21swapper/020:28:150
1464427992725,1cyclictest1611201-21chrt23:40:017
1464427992725,1cyclictest1473043-21sh19:25:027
146442799270,0cyclictest0-21swapper/722:23:137
1464423992727,0cyclictest0-21swapper/621:48:176
1464423992726,1cyclictest1556796-21munin-run22:00:006
1464423992725,1cyclictest1505353-21dump-pmu-power20:25:016
146442399270,0cyclictest0-21swapper/623:03:136
146442399270,0cyclictest0-21swapper/620:28:156
146442399270,0cyclictest0-21swapper/619:13:126
1464421992727,0cyclictest0-21swapper/520:13:155
1464421992727,0cyclictest0-21swapper/519:38:165
1464421992727,0cyclictest0-21swapper/500:08:125
1464421992725,1cyclictest1565503-21apt-get22:18:135
146442199270,0cyclictest0-21swapper/523:23:125
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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