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2026-06-30 - 11:28
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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 Tue Jun 30, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18247999812,78cyclictest0-21swapper/023:20:130
270942920,5chrt27093-21cut21:05:161
18247998833,42cyclictest14-21ksoftirqd/021:10:150
18247998815,58cyclictest0-21swapper/021:20:130
18247998814,61cyclictest0-21swapper/020:05:150
1824799876,68cyclictest17724-21apt-get22:10:130
1824799876,68cyclictest17724-21apt-get22:10:130
1824799876,66cyclictest1133-21apt-get00:25:130
18247998714,59cyclictest0-21swapper/021:25:140
18247998664,12cyclictest0-21swapper/019:15:150
18247998616,65cyclictest243-21systemd-journal20:26:410
18247998616,58cyclictest0-21swapper/000:00:100
18247998615,57cyclictest0-21swapper/021:05:140
1824799857,67cyclictest19769-21apt-get22:15:240
1824799856,67cyclictest384-21apt-get19:50:130
1824799856,62cyclictest27561-21apt-get19:35:130
18247998514,55cyclictest0-21swapper/019:30:130
1824799847,62cyclictest31823-21apt-get00:20:150
1824799847,61cyclictest28326-21apt-get00:10:150
1824799846,63cyclictest4609-21apt-get00:35:140
1824799845,64cyclictest30548-21apt-get21:15:140
18247998416,57cyclictest0-21swapper/023:25:140
18247998416,55cyclictest0-21swapper/022:30:120
18247998415,54cyclictest0-21swapper/020:55:140
18247998414,59cyclictest0-21swapper/023:55:120
18247998413,60cyclictest0-21swapper/021:30:120
18247998413,57cyclictest0-21swapper/020:15:110
18247998413,57cyclictest0-21swapper/000:30:130
18247998412,58cyclictest0-21swapper/023:40:120
1824799836,64cyclictest30300-21apt-get22:45:110
18247998315,56cyclictest0-21swapper/022:35:130
18247998314,60cyclictest0-21swapper/020:50:170
18247998314,57cyclictest0-21swapper/020:20:150
18247998314,55cyclictest0-21swapper/023:50:250
18247998314,55cyclictest0-21swapper/020:45:120
18247998312,57cyclictest0-21swapper/021:50:130
1824799828,63cyclictest3110-21apt-get23:00:120
1824799827,63cyclictest28566-21apt-get22:40:140
1824799827,60cyclictest16178-21apt-get20:35:120
1824799826,63cyclictest25277-21apt-get21:00:140
18247998216,53cyclictest0-21swapper/021:45:220
18247998215,53cyclictest0-21swapper/023:05:140
18247998213,56cyclictest0-21swapper/023:30:100
1824799816,65cyclictest24082-21apt-get19:25:140
1824799816,63cyclictest8379-21apt-get23:15:140
1824799816,62cyclictest14438-21apt-get20:30:150
18247998114,55cyclictest0-21swapper/022:05:150
18247998114,53cyclictest0-21swapper/023:45:120
18247998114,53cyclictest0-21swapper/000:05:170
18247998113,55cyclictest0-21swapper/022:25:140
18247998111,57cyclictest12440-21seq21:55:140
18253998051,13cyclictest5663-21apt-get20:05:151
1824799798,55cyclictest21534-21apt-get22:20:110
18247997912,52cyclictest0-21swapper/019:45:140
1824799786,61cyclictest32042-21apt-get22:50:160
1824799783,24cyclictest23926-21seq19:25:000
18253997749,15cyclictest1624-21apt-get21:25:141
1824799776,55cyclictest7451-21apt-get20:10:140
18247997728,42cyclictest243-21systemd-journal19:15:000
18247997715,51cyclictest0-21swapper/023:35:110
18247997715,51cyclictest0-21swapper/022:00:120
18253997646,21cyclictest24490-21apt-get00:00:111
18253997634,26cyclictest26-21ksoftirqd/100:20:141
1824799768,52cyclictest2163-21apt-get19:55:140
1824799767,53cyclictest30056-21apt-get00:15:110
1824799767,53cyclictest1350-21apt-get22:55:120
18247997619,51cyclictest457-21dbus-daemon21:39:000
18253997550,14cyclictest26755-21apt-get22:35:131
18253997544,20cyclictest11884-21apt-get23:25:141
1824799756,55cyclictest6640-21apt-get23:10:110
1787927540,26sleep10-21swapper/119:08:061
18253997448,12cyclictest20584-21apt-get19:15:141
18253997447,17cyclictest25821-21apt-get19:30:131
18253997447,17cyclictest20958-21apt-get23:50:251
18253997447,12cyclictest3362-21apt-get21:30:121
18253997447,12cyclictest2870-21apt-get00:30:131
18253997446,16cyclictest17173-21apt-get23:40:121
18253997428,40cyclictest9423-21cat21:45:341
1824799747,54cyclictest17990-21apt-get20:40:140
18253997344,17cyclictest22696-21apt-get23:55:121
18253997246,12cyclictest19769-21apt-get22:15:231
18253997230,37cyclictest7829-21cat20:10:211
1824799725,51cyclictest6914-21apt-get21:40:130
18253997151,10cyclictest23277-21apt-get22:25:141
18253997145,17cyclictest19731-21apt-get20:45:111
18253997144,16cyclictest26542-21apt-get00:05:171
18253997129,35cyclictest12522-21latency_hist20:25:011
1824799716,50cyclictest3925-21apt-get20:00:140
18253997045,14cyclictest15933-21apt-get22:05:151
18253997043,18cyclictest18919-21apt-get23:45:141
18253997042,18cyclictest10698-21apt-get21:50:151
18253997042,17cyclictest26-21ksoftirqd/122:40:151
18253997020,20cyclictest0-21swapper/119:40:371
1776727021,39sleep00-21swapper/019:06:540
18253996946,12cyclictest25277-21apt-get21:00:121
18253996939,17cyclictest26-21ksoftirqd/119:10:151
18253996934,31cyclictest0-21swapper/123:20:311
18253996929,34cyclictest1509-21aten2.4_r3power22:55:161
18253996843,16cyclictest4851-21apt-get23:05:131
18247996822,38cyclictest29712-21df19:40:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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