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2026-08-12 - 20:45
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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 Aug 12, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3247021237,102sleep032576-21/usr/sbin/munin07:05:230
12149912266,42cyclictest14-21ksoftirqd/008:35:120
1218991028,76cyclictest0-21swapper/107:16:491
12149910016,16cyclictest0-21swapper/010:25:130
1214999918,18cyclictest0-21swapper/011:55:110
121899985,66cyclictest0-21swapper/107:20:221
1214999415,18cyclictest0-21swapper/010:40:230
1214999336,19cyclictest14-21ksoftirqd/012:20:140
1214999216,18cyclictest0-21swapper/012:35:130
1214999213,19cyclictest0-21swapper/011:45:120
1214999131,24cyclictest12228-31find07:40:310
1214999117,17cyclictest0-21swapper/008:10:150
1214999116,19cyclictest0-21swapper/010:35:130
1214999115,17cyclictest0-21swapper/009:50:100
1214999114,69cyclictest0-21swapper/011:05:120
1214999114,69cyclictest0-21swapper/011:05:110
1214999114,17cyclictest0-21swapper/009:55:130
1214999024,17cyclictest0-21swapper/009:35:120
1214999015,62cyclictest0-21swapper/008:30:130
1214999014,19cyclictest0-21swapper/009:45:120
1214999011,35cyclictest17755-21chrt09:25:110
1214998913,18cyclictest0-21swapper/009:40:110
1214998823,19cyclictest243-21systemd-journal12:19:150
1214998816,17cyclictest0-21swapper/007:25:140
1214998814,65cyclictest0-21swapper/008:15:130
1214998814,15cyclictest0-21swapper/009:00:120
1214998812,19cyclictest0-21swapper/009:30:150
1214998811,20cyclictest0-21swapper/010:30:130
1214998717,18cyclictest0-21swapper/008:55:130
1214998714,18cyclictest0-21swapper/008:50:250
1214998713,20cyclictest0-21swapper/010:05:150
121499867,22cyclictest4628-21apt-get10:20:150
1214998622,23cyclictest243-21systemd-journal07:58:160
121899856,22cyclictest21233-21apt-get09:35:121
1214998521,21cyclictest243-21systemd-journal08:48:280
1214998521,21cyclictest243-21systemd-journal08:48:280
121899848,68cyclictest30019-21apt-get10:00:131
1214998413,19cyclictest0-21swapper/012:10:150
1214998412,19cyclictest0-21swapper/011:20:130
121899838,58cyclictest0-21swapper/109:05:111
1214998333,17cyclictest22193-21/usr/sbin/munin08:05:290
1214998333,17cyclictest22193-21/usr/sbin/munin08:05:290
121899827,67cyclictest0-21swapper/108:00:151
121499825,43cyclictest0-21swapper/007:18:570
1214998212,21cyclictest0-21swapper/012:25:110
121899817,17cyclictest28257-21apt-get09:55:131
1214998124,20cyclictest481-21gdbus08:30:000
121899805,18cyclictest17751-21apt-get09:25:111
121899803,71cyclictest12651-21ls12:15:011
121899799,64cyclictest0-21swapper/108:40:141
121899797,18cyclictest23295-21apt-get08:10:151
121899797,17cyclictest16319-21apt-get12:25:111
121899796,17cyclictest26518-21apt-get09:50:111
121499797,39cyclictest0-21swapper/009:09:130
1214997914,18cyclictest0-21swapper/010:00:130
121899787,62cyclictest0-21swapper/112:00:141
121899787,19cyclictest9844-21apt-get10:35:121
121899786,63cyclictest0-21swapper/110:50:141
121899786,21cyclictest19800-21apt-get12:35:111
121499785,10cyclictest0-21swapper/010:55:370
1214997823,13cyclictest0-21swapper/007:20:120
121899777,63cyclictest0-21swapper/111:50:161
121899777,61cyclictest0-21swapper/110:45:121
121899775,18cyclictest6367-21apt-get10:25:141
1218997712,57cyclictest0-21swapper/108:20:161
121499777,23cyclictest1405-21apt-get08:40:140
121899767,61cyclictest0-21swapper/108:25:131
121899766,62cyclictest0-21swapper/111:25:131
121499764,35cyclictest243-21systemd-journal09:13:320
1214997612,19cyclictest0-21swapper/012:30:150
121899759,57cyclictest0-21swapper/111:35:131
121899757,60cyclictest0-21swapper/110:10:141
121899756,62cyclictest0-21swapper/108:45:231
121899756,62cyclictest0-21swapper/108:45:231
121899756,61cyclictest0-21swapper/111:15:111
121899756,61cyclictest0-21swapper/110:15:131
121899756,21cyclictest7055-21apt-get07:25:161
1218997526,43cyclictest30808-21cat08:30:251
1218997510,55cyclictest32012-21apt-get08:35:131
121499754,39cyclictest15999-21aten2.4-expect07:50:170
121499754,23cyclictest243-21systemd-journal11:25:440
1214997532,12cyclictest0-21swapper/007:37:450
121899747,59cyclictest0-21swapper/109:15:131
121899747,58cyclictest0-21swapper/107:30:131
121899747,22cyclictest25034-21apt-get08:15:151
121899746,62cyclictest0-21swapper/109:20:141
121899746,61cyclictest0-21swapper/111:40:131
121899746,60cyclictest0-21swapper/112:05:171
121899746,59cyclictest0-21swapper/107:10:131
121899746,19cyclictest25966-21apt-get11:20:131
121899746,16cyclictest8102-21apt-get10:30:121
121899745,9cyclictest0-21swapper/110:40:211
121499747,23cyclictest24203-21apt-get11:15:110
121499745,41cyclictest0-21swapper/008:20:180
121899739,56cyclictest0-21swapper/110:05:141
121899738,57cyclictest0-21swapper/111:30:121
121899737,58cyclictest0-21swapper/112:15:131
121899737,58cyclictest0-21swapper/107:35:111
121899737,18cyclictest24782-21apt-get09:45:121
121899732,65cyclictest24604-21cron09:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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