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2026-04-25 - 16:10
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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 100 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
179699490,4rtkit-daemon1795-21rtkit-daemon10:54:080
179699490,4rtkit-daemon1795-21rtkit-daemon10:30:510
179699490,3rtkit-daemon0-21swapper/011:48:070
97408499487,5cyclictest1022974-21diskmemload12:36:070
97408499481,7cyclictest1070791-21df_inode10:10:150
97408499481,6cyclictest1022974-21diskmemload10:06:370
97408499480,8cyclictest1042704-21ssh09:33:450
179699480,4rtkit-daemon1795-21rtkit-daemon10:26:050
179699480,3rtkit-daemon1795-21rtkit-daemon07:20:270
179699480,3rtkit-daemon0-21swapper/107:33:071
97408899478,22cyclictest1181789-21apt-get12:35:071
974088994712,11cyclictest1089679-21apt-get10:35:131
179699470,5rtkit-daemon1795-21rtkit-daemon09:55:471
179699470,4rtkit-daemon1795-21rtkit-daemon07:57:380
179699470,3rtkit-daemon1795-21rtkit-daemon11:21:080
974088994610,20cyclictest984930-21apt-get07:35:101
974088994610,20cyclictest1144134-21apt-get11:45:131
97408499463,34cyclictest1005169-21apt-get08:25:150
97408499461,10cyclictest1170758-21apt-get12:20:130
97408499460,9cyclictest987581-21apt-get07:40:100
179699460,4rtkit-daemon1795-21rtkit-daemon09:01:220
179699460,3rtkit-daemon1795-21rtkit-daemon11:18:071
179699460,3rtkit-daemon0-21swapper/111:32:381
97408899458,21cyclictest1067001-21apt-get10:05:131
97408899458,21cyclictest1012783-21apt-get08:45:061
974088994510,20cyclictest1047631-21apt-get09:40:141
97408499452,7cyclictest1022974-21diskmemload10:01:220
179699450,1rtkit-daemon1795-21rtkit-daemon11:16:000
97408899449,20cyclictest1039648-21apt-get09:30:141
97408899448,20cyclictest1082016-21apt-get10:25:141
974088994412,10cyclictest1151720-21/usr/sbin/munin11:55:271
97408499441,6cyclictest999299-21apt-get08:10:130
97408499441,6cyclictest999299-21apt-get08:10:120
97408899438,11cyclictest1101449-21apt-get10:50:131
974088994310,11cyclictest1035200-21apt-get09:25:151
97408499431,5cyclictest1022974-21diskmemload09:16:110
97408499430,9cyclictest975019-21ntp_states07:10:360
97408899429,11cyclictest1109030-21apt-get11:00:121
97408899427,20cyclictest1027366-21apt-get09:15:131
974088994214,12cyclictest1022974-21diskmemload11:44:031
974088994211,10cyclictest1057747-21taskset09:52:271
974088994211,10cyclictest1026137-21chrt09:13:151
974088994210,20cyclictest992121-21sed07:50:211
97408499422,14cyclictest1178283-21apt-get12:30:120
179699420,1rtkit-daemon1795-21rtkit-daemon08:59:020
974088994112,10cyclictest1118511-21ssh11:11:271
974088994111,11cyclictest998660-21chrt08:05:311
974088994111,11cyclictest1078451-21grep10:20:141
974088994111,10cyclictest1095904-21taskset10:43:031
179699410,4rtkit-daemon1795-21rtkit-daemon11:38:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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