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2026-08-13 - 22:53
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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 Aug 13, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2910099878,68cyclictest20507-21apt-get08:15:110
29100998515,56cyclictest0-21swapper/008:40:110
2910099843,75cyclictest5508-21taskset07:31:350
29100998417,57cyclictest0-21swapper/007:20:130
29100998416,60cyclictest0-21swapper/010:05:150
29100998415,61cyclictest0-21swapper/010:10:130
2910099834,74cyclictest11666-21irqstats09:20:240
29100998317,58cyclictest0-21swapper/011:15:130
29100998316,58cyclictest0-21swapper/007:25:130
29100998316,58cyclictest0-21swapper/007:25:130
29100998315,58cyclictest0-21swapper/007:50:120
29100998214,60cyclictest0-21swapper/011:30:120
29100998214,58cyclictest0-21swapper/010:55:130
2910099813,73cyclictest30811-21latency_hist07:15:010
29100998117,55cyclictest0-21swapper/008:10:150
29100998117,51cyclictest0-21swapper/009:55:110
29100998116,54cyclictest0-21swapper/009:25:220
29100998116,53cyclictest0-21swapper/008:55:130
29100998114,59cyclictest0-21swapper/007:35:110
29100998114,58cyclictest0-21swapper/011:05:120
29100998114,58cyclictest0-21swapper/011:00:130
29100998114,53cyclictest0-21swapper/009:15:120
29100998113,61cyclictest0-21swapper/011:50:240
2910099807,60cyclictest31041-21apt-get08:45:110
29100998016,54cyclictest0-21swapper/009:40:130
29100998015,59cyclictest29093-21cyclictest11:45:110
29100998015,55cyclictest0-21swapper/010:50:150
2910099796,68cyclictest0-21swapper/007:56:080
2910099796,61cyclictest313-21apt-get08:50:100
2910099796,61cyclictest14975-21apt-get09:30:110
2910099796,59cyclictest10984-21apt-get12:20:150
29100997916,56cyclictest0-21swapper/008:30:130
29100997915,57cyclictest0-21swapper/010:40:130
29100997915,56cyclictest0-21swapper/011:20:230
29100997915,55cyclictest0-21swapper/012:30:120
29100997915,54cyclictest0-21swapper/009:10:270
29100997915,53cyclictest0-21swapper/009:50:140
29100997914,54cyclictest0-21swapper/009:00:150
29100997913,58cyclictest0-21swapper/011:10:120
2910099783,45cyclictest6053-21/usr/sbin/munin10:35:220
2910099782,16cyclictest8461-21latency07:40:260
29100997815,56cyclictest0-21swapper/010:00:130
29100997814,54cyclictest0-21swapper/008:35:130
29100997814,49cyclictest0-21swapper/010:30:130
29100997814,49cyclictest0-21swapper/010:30:130
29100997813,51cyclictest0-21swapper/011:55:150
2735227841,23sleep10-21swapper/107:05:051
29106997738,19cyclictest26-21ksoftirqd/110:20:011
2910099777,58cyclictest5593-21apt-get09:05:110
29100997716,52cyclictest0-21swapper/008:20:140
29100997713,50cyclictest0-21swapper/007:45:140
29100997712,57cyclictest0-21swapper/008:05:110
29100997712,51cyclictest0-21swapper/009:45:220
29100997710,60cyclictest31090-21runrttasks10:15:150
2870727718,49sleep00-21swapper/007:07:410
2910099766,58cyclictest12723-21apt-get12:25:120
2910099766,54cyclictest16204-21apt-get12:35:140
29100997617,51cyclictest0-21swapper/007:15:150
29100997616,50cyclictest0-21swapper/012:10:140
29100997615,55cyclictest0-21swapper/012:00:150
29100997614,54cyclictest0-21swapper/011:40:140
29100997614,54cyclictest0-21swapper/011:25:140
29100997614,54cyclictest0-21swapper/011:25:140
2910099756,55cyclictest379-21apt-get10:20:130
2910099756,54cyclictest24007-21apt-get08:25:120
29100997515,52cyclictest0-21swapper/012:05:130
29100997515,50cyclictest0-21swapper/010:25:120
29100997513,54cyclictest0-21swapper/012:15:140
29100997513,52cyclictest0-21swapper/009:35:110
29100997511,53cyclictest27299-21runrttasks11:35:240
29100997414,53cyclictest0-21swapper/010:45:150
29100997313,54cyclictest0-21swapper/008:00:150
29106997123,19cyclictest481-21gdbus08:20:001
29106996844,17cyclictest1143-21ntp_states10:20:291
29106996824,37cyclictest16543-21latency_hist09:35:011
29106996642,15cyclictest6006-21apt-get07:35:131
29106996539,13cyclictest9704-21chrt07:45:131
29106996438,20cyclictest11551-21cat09:20:211
29106996437,22cyclictest7111-21chrt12:08:331
29106996434,24cyclictest3737-21basename10:30:001
29106996425,20cyclictest27312-21latency_hist08:35:011
29106996332,25cyclictest15064-21awk08:00:001
29106996331,25cyclictest21417-21latency_hist11:20:011
29106996327,30cyclictest805-21seq11:50:311
29106996324,16cyclictest3108-21cat07:25:261
29106996324,16cyclictest3108-21cat07:25:261
29106996319,19cyclictest28385-21sed08:35:341
29106996238,12cyclictest3896-21apt-get10:30:141
29106996238,12cyclictest3896-21apt-get10:30:141
29106996232,24cyclictest32408-21apt-get11:50:001
29106996230,24cyclictest14422-21apt-get11:00:121
29106996227,29cyclictest16813-21latency_hist08:05:011
29106996226,30cyclictest7686-21apt-get09:10:211
29106996145,10cyclictest26-21ksoftirqd/108:40:211
29106996135,20cyclictest3658-21sh09:00:001
29106996132,24cyclictest7227-21awk09:10:011
29106996131,24cyclictest30756-21cron07:15:001
29106996131,24cyclictest23329-21ls11:25:001
29106996130,25cyclictest29888-21uname11:40:331
29106996129,26cyclictest4314-21cut07:30:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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