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2026-06-18 - 01:25
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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 Wed Jun 17, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7736210229,24sleep10-21swapper/107:08:391
735621020,6chrt7354-21apt-config11:40:020
8048998916,63cyclictest0-21swapper/009:50:120
8048998916,58cyclictest0-21swapper/010:55:110
758528917,27sleep00-21swapper/007:07:020
8048998735,45cyclictest457-21dbus-daemon08:15:010
8048998715,60cyclictest0-21swapper/011:10:130
8048998715,60cyclictest0-21swapper/011:10:130
804899867,66cyclictest25857-21apt-get12:30:110
8048998617,60cyclictest0-21swapper/012:15:120
8048998615,59cyclictest0-21swapper/011:50:130
8048998514,63cyclictest0-21swapper/012:35:140
8048998513,58cyclictest0-21swapper/007:55:120
804899846,66cyclictest18239-21apt-get10:40:100
804899846,65cyclictest26350-21apt-get08:00:120
8048998417,53cyclictest0-21swapper/009:10:130
8048998416,55cyclictest0-21swapper/011:00:140
255602840,7sleep125552-21sshd11:00:161
804899837,65cyclictest7987-21apt-get08:40:150
804899832,18cyclictest20328-21timerwakeupswit07:40:430
8048998316,59cyclictest0-21swapper/009:45:120
8048998316,57cyclictest0-21swapper/008:05:150
8048998316,56cyclictest0-21swapper/009:15:110
8048998314,60cyclictest0-21swapper/007:30:120
8048998313,55cyclictest0-21swapper/012:20:130
804899827,61cyclictest13888-21apt-get07:25:130
804899826,60cyclictest32555-21apt-get11:20:110
804899824,73cyclictest4021-21sendmail-msp10:00:000
804899823,59cyclictest4173-21munin-node10:00:100
8048998218,55cyclictest0-21swapper/012:25:120
8048998216,56cyclictest0-21swapper/011:25:220
8048998213,54cyclictest0-21swapper/012:10:110
804899819,61cyclictest16436-21apt-get10:35:160
804899817,60cyclictest15265-21apt-get09:00:130
8048998119,50cyclictest0-21swapper/011:05:130
8048998116,51cyclictest0-21swapper/010:50:130
8048998115,56cyclictest0-21swapper/010:45:220
8048998114,59cyclictest0-21swapper/008:30:120
8048998114,58cyclictest0-21swapper/008:15:150
8048998114,57cyclictest0-21swapper/011:55:220
8048998114,53cyclictest0-21swapper/012:05:110
8048998112,59cyclictest0-21swapper/008:25:140
804899805,63cyclictest21112-21apt-get07:45:140
804899803,15cyclictest4183-21cpuspeed_turbos11:30:180
8048998017,49cyclictest0-21swapper/007:10:120
8048998012,53cyclictest0-21swapper/008:35:120
804899796,63cyclictest24034-21apt-get09:25:120
804899796,58cyclictest22294-21apt-get09:20:130
8048997925,43cyclictest457-21dbus-daemon09:00:000
8048997925,43cyclictest457-21dbus-daemon09:00:000
8048997914,54cyclictest0-21swapper/009:05:130
8048997914,53cyclictest0-21swapper/012:00:220
8048997913,59cyclictest0-21swapper/007:50:110
8048997913,55cyclictest0-21swapper/007:35:140
8048997913,52cyclictest0-21swapper/009:30:150
804899787,55cyclictest9730-21apt-get08:45:160
804899787,55cyclictest11216-21apt-get10:20:140
804899786,56cyclictest12956-21apt-get10:25:140
8048997814,54cyclictest0-21swapper/009:35:240
8048997813,57cyclictest0-21swapper/010:15:120
318012780,6sleep10-21swapper/109:45:231
804899776,59cyclictest12151-21apt-get07:20:110
8048997713,52cyclictest0-21swapper/010:05:130
804899767,54cyclictest7761-21apt-get11:40:220
804899767,53cyclictest29626-21apt-get09:40:090
804899766,54cyclictest953-21apt-get08:20:130
8048997615,51cyclictest0-21swapper/007:15:110
8048997613,57cyclictest0-21swapper/011:45:120
804899756,56cyclictest7703-21apt-get10:10:100
804899755,54cyclictest30793-21apt-get11:15:120
8048997512,51cyclictest0-21swapper/010:30:140
8050997338,21cyclictest671-21apt-get09:50:121
8050997242,19cyclictest29056-21apt-get11:10:131
8050997242,19cyclictest29056-21apt-get11:10:131
8050997230,28cyclictest26-21ksoftirqd/110:00:111
8048997225,37cyclictest13326-21cron08:55:000
8050997032,28cyclictest23757-21apt-get10:55:111
8050996841,15cyclictest11249-21apt-get11:50:131
8050996738,14cyclictest19294-21apt-get07:40:111
8050996736,16cyclictest2169-21apt-get11:25:221
8050996639,13cyclictest28094-21apt-get08:05:151
8050996636,14cyclictest24120-21apt-get12:25:121
8050996635,15cyclictest9452-21apt-get10:15:121
8050996633,24cyclictest24590-21apt-get07:55:121
8050996619,41cyclictest14850-21cron12:00:001
8050996538,13cyclictest22847-21apt-get07:50:121
8050996538,13cyclictest11216-21apt-get10:20:131
8050996536,16cyclictest5917-21apt-get10:05:131
8050996536,14cyclictest17371-21apt-get07:35:141
8050996530,21cyclictest25779-21apt-get09:30:171
8050996438,16cyclictest18795-21apt-get09:10:131
8050996437,13cyclictest2693-21apt-get08:25:141
8050996434,17cyclictest26-21ksoftirqd/109:55:131
8050996433,19cyclictest13502-21apt-get08:55:131
8050996433,19cyclictest13502-21apt-get08:55:131
8050996429,25cyclictest17088-21apt-get12:05:111
8050996427,22cyclictest4431-21apt-get08:30:151
8050996416,43cyclictest26-21ksoftirqd/112:32:311
8050996338,13cyclictest27599-21apt-get12:35:131
8050996337,16cyclictest22380-21apt-get12:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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