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2026-03-26 - 17:38
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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 rack8slot4.osadl.org (updated Thu Mar 26, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24981472237181,44sleep50-21swapper/507:06:065
24982362223167,18sleep20-21swapper/207:07:242
25003342221188,21sleep00-21swapper/007:09:380
25002942219168,40sleep60-21swapper/607:09:046
24981252216189,17sleep30-21swapper/307:05:483
24981612212184,18sleep10-21swapper/107:06:181
24982692208178,19sleep70-21swapper/707:07:527
25003012207165,19sleep40-21swapper/407:09:114
250059899340,3cyclictest2558836-21echo08:55:002
250060199332,30cyclictest700-21rs:main3
250061299320,31cyclictest2672694-21sh12:25:017
2500591993228,3cyclictest0-21swapper/009:18:010
250059199320,28cyclictest0-21swapper/011:18:010
250059199320,28cyclictest0-21swapper/011:18:010
2500603993128,2cyclictest1-21systemd07:40:024
250059899312,1cyclictest42-21ksoftirqd/208:50:002
2500612993027,2cyclictest2583030-21apt09:40:017
2500609993030,0cyclictest0-21swapper/609:25:006
250060799300,29cyclictest2541830-21munin-run08:25:025
2500603993028,1cyclictest2618941-21apt-get10:48:014
2500603993027,2cyclictest2607536-21sh10:25:004
250060399301,1cyclictest958-21gmain12:15:014
250060399300,29cyclictest2514609-21apt07:35:024
250060399300,29cyclictest0-21swapper/410:00:004
2500601993028,1cyclictest2509857-21apt-get07:28:013
2500591993028,1cyclictest2536413-21sh08:15:020
2500591993027,2cyclictest0-21swapper/007:58:020
250059199300,0cyclictest0-21swapper/008:55:010
2500612992927,1cyclictest2509857-21apt-get07:28:017
2500612992927,1cyclictest0-21swapper/712:40:027
2500612992927,1cyclictest0-21swapper/710:33:017
250061299290,28cyclictest0-21swapper/712:33:017
250061299290,28cyclictest0-21swapper/707:33:007
2500609992929,0cyclictest0-21swapper/609:18:016
2500609992927,2cyclictest78-21ksoftirqd/609:45:016
2500609992927,1cyclictest2605481-21http10:23:026
2500609992927,1cyclictest0-21swapper/608:05:016
2500607992927,1cyclictest2531092-21systemd-run08:05:025
250060799290,28cyclictest0-21swapper/512:13:015
250060799290,28cyclictest0-21swapper/512:03:005
250060399290,28cyclictest0-21swapper/410:45:014
250060399290,28cyclictest0-21swapper/409:50:014
2500601992926,2cyclictest2638062-21chrt11:23:003
2500601992924,4cyclictest0-21swapper/311:35:023
2500601992923,6cyclictest0-21swapper/308:45:013
250060199290,28cyclictest278-21plymouthd09:45:013
250060199290,28cyclictest2526278-21apt-get07:58:023
250060199290,28cyclictest0-21swapper/312:13:003
250060199290,28cyclictest0-21swapper/311:13:013
250060199290,28cyclictest0-21swapper/311:05:013
250060199290,28cyclictest0-21swapper/309:58:033
250060199290,28cyclictest0-21swapper/308:15:023
2500598992928,1cyclictest2635349-21apt-get11:18:012
2500598992928,1cyclictest2635349-21apt-get11:18:012
2500598992928,1cyclictest0-21swapper/209:53:032
2500598992927,1cyclictest2607578-21systemd-run10:25:012
2500598992927,1cyclictest2561177-21apt-get09:00:022
250059899290,28cyclictest0-21swapper/212:18:012
250059899290,28cyclictest0-21swapper/210:58:012
250059899290,28cyclictest0-21swapper/210:33:002
250059899290,28cyclictest0-21swapper/209:33:002
250059899290,28cyclictest0-21swapper/208:40:012
250059899290,28cyclictest0-21swapper/208:13:002
250059899290,1cyclictest2599817-21apt-get10:13:002
250059899290,1cyclictest0-21swapper/210:10:002
2500596992927,1cyclictest2531672-21apt-get08:08:011
2500596992927,1cyclictest0-21swapper/110:18:011
250059699290,28cyclictest0-21swapper/111:48:011
250059699290,28cyclictest0-21swapper/108:00:011
250059699290,1cyclictest0-21swapper/111:02:591
250059699290,1cyclictest0-21swapper/108:25:021
2500591992927,1cyclictest2618317-21turbostat.cron10:45:000
2500591992924,4cyclictest2552855-21apt08:45:010
250059199290,29cyclictest0-21swapper/010:55:010
2500612992828,0cyclictest0-21swapper/711:58:007
2500612992828,0cyclictest0-21swapper/709:53:037
2500612992827,1cyclictest0-21swapper/710:43:007
2500612992826,1cyclictest2640748-21apt-get11:28:007
2500609992827,1cyclictest0-21swapper/608:33:016
2500609992824,3cyclictest2631777-21idleruntime-cro11:10:016
250060999280,27cyclictest0-21swapper/609:58:026
2500607992828,0cyclictest0-21swapper/510:48:015
2500607992826,1cyclictest2657158-21apt-get11:58:015
2500607992826,1cyclictest2534355-21apt-get08:12:595
2500607992825,2cyclictest2561287-21awk09:00:015
250060799280,28cyclictest0-21swapper/511:45:025
2500603992826,1cyclictest2672760-21apt-config12:25:024
250060399280,28cyclictest0-21swapper/407:30:024
250060399280,1cyclictest1-21systemd12:30:024
250060399280,1cyclictest0-21swapper/409:23:024
250060399280,1cyclictest0-21swapper/408:43:014
2500601992828,0cyclictest0-21swapper/311:58:013
2500601992828,0cyclictest0-21swapper/310:48:023
2500601992828,0cyclictest0-21swapper/309:33:003
2500601992828,0cyclictest0-21swapper/309:25:013
2500601992827,1cyclictest0-21swapper/310:53:033
250060199280,28cyclictest0-21swapper/307:20:023
2500598992827,1cyclictest2542710-21http08:28:022
2500598992827,0cyclictest0-21swapper/212:25:032
250059899280,28cyclictest0-21swapper/208:58:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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