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2025-12-25 - 03:23
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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 rack3slot6.osadl.org (updated Thu Dec 25, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10597999116,68cyclictest0-21swapper/020:25:130
10597999116,68cyclictest0-21swapper/020:25:120
1029928733,38sleep00-21swapper/019:08:480
10602998642,31cyclictest26-21ksoftirqd/123:40:131
884128532,41sleep10-21swapper/119:05:071
10597998559,14cyclictest0-21swapper/022:20:110
10597998432,43cyclictest12394-21runrttasks20:45:160
10597998432,43cyclictest12394-21runrttasks20:45:150
10602998249,20cyclictest26-21ksoftirqd/120:25:151
10602998249,20cyclictest26-21ksoftirqd/120:25:151
1059799817,59cyclictest15052-21apt-get23:55:140
1059799816,60cyclictest7091-21apt-get20:30:140
10602998039,27cyclictest26-21ksoftirqd/123:10:131
10597998059,12cyclictest0-21swapper/000:05:120
1059799803,70cyclictest24134-21cat00:20:020
1059799787,59cyclictest730-21apt-get23:15:150
1059799787,59cyclictest730-21apt-get23:15:140
10597997852,12cyclictest14-21ksoftirqd/021:40:130
1059799766,58cyclictest4241-21apt-get23:25:160
10597997625,46cyclictest448-21dbus-daemon23:05:010
10597997622,48cyclictest250-21systemd-journal19:46:110
10597997615,53cyclictest0-21swapper/020:00:150
10597997546,16cyclictest0-21swapper/021:50:120
1059799753,66cyclictest250-21systemd-journal20:15:000
1059799752,66cyclictest21402-21wc21:10:190
1059799746,55cyclictest17157-21apt-get00:00:260
1059799743,65cyclictest26396-21apt-get21:25:100
10597997410,51cyclictest0-21swapper/022:10:120
10597997410,50cyclictest0-21swapper/019:55:170
1059799739,51cyclictest0-21swapper/022:50:140
1059799739,50cyclictest0-21swapper/020:50:160
1059799739,50cyclictest0-21swapper/000:10:140
1059799734,48cyclictest31033-21uname21:35:430
10597997326,42cyclictest448-21dbus-daemon23:39:010
10597997326,42cyclictest448-21dbus-daemon23:39:010
1059799729,51cyclictest0-21swapper/019:40:140
1059799729,50cyclictest0-21swapper/021:20:120
1059799729,50cyclictest0-21swapper/021:15:140
1059799728,55cyclictest0-21swapper/021:55:130
1059799728,49cyclictest0-21swapper/022:00:150
10597997213,18cyclictest0-21swapper/023:45:120
1059799716,49cyclictest10643-21apt-get20:40:120
10597997111,48cyclictest0-21swapper/023:30:160
1059799709,52cyclictest0-21swapper/019:10:130
1059799709,48cyclictest0-21swapper/023:20:130
1059799709,47cyclictest0-21swapper/021:00:150
1059799708,48cyclictest0-21swapper/021:30:160
1059799706,49cyclictest26226-21apt-get00:25:150
10597997051,10cyclictest14-21ksoftirqd/022:05:120
10597997019,44cyclictest448-21dbus-daemon19:30:040
1059799699,47cyclictest0-21swapper/000:35:130
1059799698,49cyclictest0-21swapper/022:15:120
1059799698,49cyclictest0-21swapper/019:50:130
1059799696,53cyclictest8829-21apt-get20:35:110
10597996938,19cyclictest20232-21taskset19:35:140
10597996910,51cyclictest0-21swapper/022:40:110
10597996910,45cyclictest0-21swapper/022:55:140
1059799689,48cyclictest0-21swapper/022:25:120
1059799689,47cyclictest0-21swapper/022:30:160
1059799688,49cyclictest0-21swapper/023:50:260
1059799687,47cyclictest24483-21apt-get00:20:240
10597996810,49cyclictest0-21swapper/023:40:130
10597996810,48cyclictest0-21swapper/023:05:120
1059799679,44cyclictest0-21swapper/022:45:140
1059799678,49cyclictest0-21swapper/021:45:230
1059799678,47cyclictest0-21swapper/020:15:120
1059799676,47cyclictest14699-21apt-get19:20:140
1059799675,58cyclictest0-21swapper/020:56:490
1059799672,45cyclictest17791-21taskset19:27:450
10602996641,18cyclictest12386-21apt-get20:45:161
10602996641,18cyclictest12386-21apt-get20:45:151
1059799666,48cyclictest19107-21apt-get22:35:140
1059799666,48cyclictest19107-21apt-get22:35:130
1059799662,58cyclictest30951-21cpu20:05:200
1059799662,57cyclictest19523-21aten2.4-expect21:05:180
10597996611,42cyclictest0-21swapper/023:10:130
10602996536,17cyclictest26-21ksoftirqd/122:12:281
10602996536,17cyclictest26-21ksoftirqd/100:35:431
1059799659,44cyclictest0-21swapper/000:30:150
1059799659,43cyclictest0-21swapper/020:20:150
136992640,9sleep1261ksoftirqd/123:50:321
1059799647,48cyclictest12937-21apt-get19:15:120
10602996327,30cyclictest0-21swapper/100:00:251
10602996233,9cyclictest26-21ksoftirqd/100:25:131
10602996225,28cyclictest0-21swapper/120:30:131
1294026111,30sleep10-21swapper/119:15:121
10602996125,27cyclictest0-21swapper/121:00:141
10602996032,16cyclictest23775-21apt-get19:45:141
10602995935,11cyclictest18895-21apt-get00:05:141
10602995932,14cyclictest22894-21apt-get21:15:141
10602995926,24cyclictest0-21swapper/123:55:141
10602995925,26cyclictest0-21swapper/100:20:231
10602995841,11cyclictest500-21snmpd19:22:251
10602995831,17cyclictest6846-21apt-get22:00:141
10602995831,15cyclictest8584-21apt-get22:05:121
10602995825,27cyclictest0-21swapper/123:05:121
10602995824,26cyclictest0-21swapper/120:55:131
10602995823,24cyclictest0-21swapper/123:25:151
10602995737,12cyclictest25510-21apt-get19:50:151
10602995733,13cyclictest11271-21apt-get23:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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