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2026-04-26 - 00:10
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Sat Apr 25, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9736582267185,68sleep10-21swapper/107:06:451
9736872238196,28sleep00-21swapper/007:07:050
110837621270,2sleep10-21swapper/110:59:201
97408499672,43cyclictest1136583-21apt-get11:35:140
179699630,6rtkit-daemon1795-21rtkit-daemon12:03:051
97408499612,41cyclictest989531-21apt-get07:45:160
97408499610,9cyclictest1129312-21memory11:25:200
97408499602,6cyclictest1174575-21apt-get12:25:140
179699600,3rtkit-daemon1795-21rtkit-daemon10:15:571
97408499572,8cyclictest1015350-21apt-get08:50:120
97408499572,6cyclictest1093375-21apt-get10:40:150
97408499572,10cyclictest978809-40unattended-upgr07:17:440
97408499571,7cyclictest1043535-21apt-get09:35:140
179699570,5rtkit-daemon1795-21rtkit-daemon12:19:131
97408499562,6cyclictest1155504-21apt-get12:00:130
97408499562,6cyclictest1051537-21apt-get09:45:130
179699560,5rtkit-daemon1795-21rtkit-daemon11:58:380
179699560,1rtkit-daemon1795-21rtkit-daemon10:19:360
97408499552,5cyclictest1163257-21apt-get12:10:140
179699550,4rtkit-daemon1795-21rtkit-daemon11:23:141
179699550,4rtkit-daemon1795-21rtkit-daemon10:45:241
97408499541,5cyclictest995399-21apt-get08:00:150
97408499541,5cyclictest1078421-21apt-get10:20:130
97408499541,10cyclictest1091329-21ssh10:36:000
179699540,4rtkit-daemon1795-21rtkit-daemon09:55:130
179699530,3rtkit-daemon0-21swapper/008:35:270
97408499522,5cyclictest991480-21apt-get07:50:140
97408499521,5cyclictest1031372-21apt-get09:20:100
97408499521,12cyclictest1021985-21ntp_states09:05:220
179699520,4rtkit-daemon1795-21rtkit-daemon12:05:200
179699520,3rtkit-daemon0-21swapper/008:45:260
97408499512,6cyclictest997348-21apt-get08:05:140
97408499512,4cyclictest983190-21apt-get07:30:130
97408499511,9cyclictest985554-21apt-get07:35:130
97408499511,8cyclictest1097773-21diskstats10:45:150
97408499511,7cyclictest1108339-21ssh10:59:160
97408499511,6cyclictest1148011-21apt-get11:50:130
97408499511,4cyclictest1055505-21apt-get09:50:170
179699510,3rtkit-daemon1795-21rtkit-daemon12:16:020
179699510,3rtkit-daemon0-21swapper/109:24:241
974088995013,14cyclictest1085814-21apt-get10:30:141
974088995012,22cyclictest1070562-21apt-get10:10:131
97408499502,6cyclictest1023255-21apt-get09:10:140
97408499501,7cyclictest1141210-21ntp_states11:40:220
97408499501,5cyclictest1022974-21diskmemload09:40:090
179699500,4rtkit-daemon1795-21rtkit-daemon11:13:020
179699500,4rtkit-daemon1795-21rtkit-daemon11:07:520
179699500,1rtkit-daemon1795-21rtkit-daemon11:30:190
97408499491,9cyclictest1003824-21memory08:20:210
179699490,4rtkit-daemon1795-21rtkit-daemon11:03:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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