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2026-04-14 - 08:31
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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 Tue Apr 14, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9715852269191,28sleep10-21swapper/119:07:401
9714642267187,27sleep00-21swapper/019:06:220
97195499572,35cyclictest1157496-21apt-get00:25:140
97195499563,34cyclictest1014389-21appstreamcli20:55:040
97195499542,35cyclictest1066899-21apt-get22:15:140
179699530,4rtkit-daemon1795-21rtkit-daemon21:58:410
97195499522,33cyclictest1020969-21apt-get21:10:120
97195499522,32cyclictest1098745-21apt-get23:00:130
97195499522,32cyclictest1063455-21apt-get22:10:130
97195499512,31cyclictest1031904-21apt-get21:25:130
97195499501,31cyclictest1143956-21apt-get00:05:130
971954995012,19cyclictest1041865-21sh21:39:180
971954995012,18cyclictest1093910-21sh22:53:400
179699500,4rtkit-daemon1795-21rtkit-daemon22:20:551
179699500,4rtkit-daemon1795-21rtkit-daemon21:32:120
179699490,4rtkit-daemon1795-21rtkit-daemon19:11:340
97195499471,35cyclictest1119095-21ssh23:29:370
97195499471,34cyclictest1125059-21ssh23:37:220
97195499470,4cyclictest1020292-21diskmemload22:04:230
179699470,3rtkit-daemon1795-21rtkit-daemon19:22:460
97195499461,8cyclictest1030590-21ssh21:22:220
97195499461,3cyclictest1147266-21apt-get00:10:140
97195499461,30cyclictest1153968-21apt-get00:20:140
97195499461,27cyclictest1088486-21needreboot22:45:200
971954994610,20cyclictest1108178-21sh23:13:190
97195499451,8cyclictest1115501-21ssh23:24:240
97195499451,8cyclictest1026713-21ssh21:16:520
97195499451,7cyclictest1127959-21ssh23:41:090
97195499446,21cyclictest0-21swapper/020:31:230
97195499442,5cyclictest1164429-21apt-get00:35:140
97195499440,8cyclictest997865-21perf20:15:010
97195499432,28cyclictest1020292-21diskmemload22:31:560
97195499431,8cyclictest1102481-21fschecks_time23:05:180
97195499431,4cyclictest1140375-21apt-get00:00:130
97195499430,9cyclictest1086930-21ssh22:43:260
97195499430,8cyclictest1075890-21ssh22:26:490
97195499430,7cyclictest1112125-21ssh23:19:380
97195499421,5cyclictest1020292-21diskmemload22:25:000
97195499420,7cyclictest1135149-21ssh23:51:230
179699420,3rtkit-daemon0-21swapper/023:50:171
97195499412,26cyclictest1020292-21diskmemload23:57:030
97195499411,8cyclictest1020292-21diskmemload00:15:110
97195499411,7cyclictest992977-21ntp_states20:00:220
97195499411,3cyclictest1160962-21apt-get00:30:130
97195499411,27cyclictest1020292-21diskmemload23:45:020
97195499411,23cyclictest1020292-21diskmemload21:50:210
97195499411,10cyclictest1019312-21ntp_states21:05:210
97195499410,7cyclictest1084028-21munin-run22:40:010
97195499410,3cyclictest1044933-21ssh21:43:260
97195499401,9cyclictest991005-21ntp_states19:55:220
97195499401,5cyclictest1020292-21diskmemload23:30:070
97195499400,3cyclictest998818-21ntp_states20:15:220
97195499400,3cyclictest987102-21ntp_states19:45:220
97195499400,3cyclictest1095567-21ntp_states22:55:210
97195499400,3cyclictest1046014-21df21:45:150
11287402400,4sleep10-21swapper/123:43:071
97195499392,3cyclictest975663-21find19:15:260
97195499391,3cyclictest981236-21ntp_states19:30:230
97195499390,7cyclictest1017466-21ps21:00:230
97195499390,3cyclictest988286-21apt19:50:100
97195499390,3cyclictest985679-21users19:40:260
97195499390,3cyclictest1010413-21df20:45:160
97195499390,3cyclictest1001768-21apt-get20:25:000
179699390,3rtkit-daemon0-21swapper/020:52:450
97195499381,4cyclictest1059925-21apt-get22:05:130
97195499381,3cyclictest994366-21diskstats20:05:150
97195499380,8cyclictest1001768-21apt-get20:25:010
97195499380,3cyclictest982733-21perl19:35:160
179699380,3rtkit-daemon1795-21rtkit-daemon23:31:081
97195499370,3cyclictest1006503-21diskstats20:35:160
179699370,3rtkit-daemon0-21swapper/122:38:411
97195499360,3cyclictest978856-21perl19:25:160
11607592360,2sleep10-21swapper/100:30:001
179699350,5rtkit-daemon1020292-21diskmemload23:23:051
179699350,4rtkit-daemon1795-21rtkit-daemon19:55:191
179699350,3rtkit-daemon0-21swapper/019:35:061
97195499340,3cyclictest1008472-21sh20:40:150
179699340,3rtkit-daemon0-21swapper/121:08:351
179699340,3rtkit-daemon0-21swapper/022:15:301
179699330,6rtkit-daemon1014587-40apt-check20:55:111
179699330,4rtkit-daemon1795-21rtkit-daemon21:24:261
179699330,3rtkit-daemon1795-21rtkit-daemon21:10:561
179699330,3rtkit-daemon0-21swapper/121:15:001
179699330,3rtkit-daemon0-21swapper/022:02:151
179699330,3rtkit-daemon0-21swapper/021:00:271
179699330,3rtkit-daemon0-21swapper/020:51:451
179699330,3rtkit-daemon0-21swapper/020:22:531
179699330,3rtkit-daemon0-21swapper/019:23:491
179699320,3rtkit-daemon0-21swapper/021:54:291
179699320,3rtkit-daemon0-21swapper/019:31:491
971959993114,3cyclictest26-21ksoftirqd/100:08:051
971959993114,10cyclictest996101-21apt-get20:10:121
179699310,3rtkit-daemon1795-21rtkit-daemon22:11:391
179699310,3rtkit-daemon0-21swapper/021:38:141
179699310,3rtkit-daemon0-21swapper/020:47:551
179699310,3rtkit-daemon0-21swapper/020:38:331
179699310,3rtkit-daemon0-21swapper/020:02:561
179699310,3rtkit-daemon0-21swapper/019:10:371
97195999308,4cyclictest26-21ksoftirqd/122:31:531
971959993027,2cyclictest18150irq/39-mmc022:09:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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