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2025-12-14 - 14:32
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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 Sun Dec 14, 2025 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25462782230174,17sleep40-21swapper/407:05:584
25484912228169,19sleep50-21swapper/507:09:535
25463782227171,18sleep30-21swapper/307:07:253
25463832218187,20sleep70-21swapper/707:07:307
25462752216189,17sleep10-21swapper/107:05:561
25484792211183,18sleep20-21swapper/207:09:422
25484862210183,17sleep00-21swapper/007:09:480
25463272205178,17sleep60-21swapper/607:06:406
26162132570,0sleep40-21swapper/409:13:234
2548746993332,1cyclictest0-21swapper/708:00:027
254873999320,31cyclictest369-21systemd-journal11:50:015
254872899320,31cyclictest2691316-21chrt11:33:161
2548734993129,2cyclictest501ktimers/311:43:173
254873299310,30cyclictest2571127-21turbostat.cron07:50:012
254872599310,30cyclictest369-21systemd-journal08:00:010
254874399300,29cyclictest2723628-21apt-get12:33:166
254874399300,29cyclictest2693362-21turbostat.cron11:35:016
254874399300,29cyclictest2641392-21sh10:00:006
254874399300,29cyclictest2563015-21sh07:35:016
2548739993028,1cyclictest0-21swapper/508:53:175
2548739993027,2cyclictest0-21swapper/507:55:015
254873999300,2cyclictest2565727-21idleruntime-cro07:40:015
254873799300,29cyclictest698-21in:imuxsock10:30:024
254873799300,1cyclictest0-21swapper/412:38:154
254873299300,29cyclictest0-21swapper/209:30:012
254872599300,28cyclictest2571763-21apt-get07:53:150
254872599300,0cyclictest0-21swapper/009:43:160
2548746992928,1cyclictest681-21dbus-daemon07:25:017
2548746992927,1cyclictest2604082-21apt-get08:53:187
2548746992927,1cyclictest0-21swapper/711:43:167
254874699290,1cyclictest2662955-21munin-run10:40:027
254874399290,28cyclictest2669241-21apt-get10:53:196
254874399290,28cyclictest2669241-21apt-get10:53:186
254874399290,28cyclictest0-21swapper/610:18:166
254874399290,28cyclictest0-21swapper/607:18:206
2548739992927,1cyclictest671rcuc/509:25:005
2548739992927,1cyclictest0-21swapper/510:05:005
2548739992927,1cyclictest0-21swapper/508:08:165
254873999290,28cyclictest0-21swapper/512:28:155
254873999290,28cyclictest0-21swapper/509:08:165
254873999290,1cyclictest0-21swapper/508:40:015
254873999290,1cyclictest0-21swapper/507:13:135
254873799290,28cyclictest0-21swapper/407:43:164
2548734992928,1cyclictest0-21swapper/310:50:023
2548734992928,1cyclictest0-21swapper/310:50:013
254873499290,1cyclictest2657567-21idleruntime-cro10:30:023
2548732992927,1cyclictest2549249-21http07:13:132
254873299290,28cyclictest2627975-21idleruntime-cro09:35:002
2548728992927,1cyclictest2663602-21apt-get10:43:151
254872899290,28cyclictest2704768-21apt-get11:58:141
254872899290,28cyclictest0-21swapper/111:48:171
254872899290,28cyclictest0-21swapper/108:03:161
254872899290,1cyclictest2684834-21systemd-run11:20:021
254872899290,1cyclictest2576564-21systemd-run08:00:021
254872899290,1cyclictest2563660-21apt-get07:38:171
2548725992926,2cyclictest2595362-21turbostat.cron08:35:010
2548725992924,4cyclictest0-21swapper/012:30:010
254872599290,28cyclictest0-21swapper/011:30:010
254872599290,28cyclictest0-21swapper/010:58:180
254872599290,28cyclictest0-21swapper/010:58:170
254872599290,28cyclictest0-21swapper/010:33:160
254872599290,28cyclictest0-21swapper/009:50:010
254872599290,28cyclictest0-21swapper/008:23:160
254872599290,28cyclictest0-21swapper/007:48:160
2548746992827,1cyclictest0-21swapper/711:53:177
2548746992827,1cyclictest0-21swapper/707:43:177
2548746992827,0cyclictest0-21swapper/710:28:177
2548746992826,1cyclictest2622945-21apt-get09:28:187
254874699280,28cyclictest2595370-21munin-run08:35:017
254874699280,28cyclictest0-21swapper/710:23:167
254874699280,28cyclictest0-21swapper/709:55:007
254874699280,0cyclictest0-21swapper/711:03:167
254874699280,0cyclictest0-21swapper/708:43:177
2548743992827,1cyclictest0-21swapper/609:45:006
254874399280,27cyclictest0-21swapper/608:08:166
254874399280,0cyclictest0-21swapper/610:28:176
2548739992827,1cyclictest0-21swapper/509:13:165
2548739992827,0cyclictest0-21swapper/511:53:175
2548739992826,2cyclictest0-21swapper/512:08:165
2548739992825,2cyclictest0-21swapper/511:20:035
2548739992813,14cyclictest2647432-21apt-get10:13:165
254873999280,28cyclictest0-21swapper/507:18:135
2548737992827,1cyclictest0-21swapper/407:38:164
2548737992827,0cyclictest0-21swapper/412:33:154
2548737992826,1cyclictest2598709-21apt-get08:43:184
254873799280,28cyclictest0-21swapper/407:23:174
254873799280,27cyclictest0-21swapper/409:38:174
2548734992828,0cyclictest0-21swapper/312:33:163
2548734992827,1cyclictest0-21swapper/310:40:013
254873499280,28cyclictest0-21swapper/307:43:163
254873499280,0cyclictest0-21swapper/312:38:153
2548732992826,1cyclictest2696708-21apt-get11:43:172
2548732992826,1cyclictest2662942-21cron10:40:022
2548732992826,1cyclictest2628582-21apt-get09:38:172
2548732992826,1cyclictest0-21swapper/209:25:002
254873299280,28cyclictest0-21swapper/208:55:012
254872899280,27cyclictest0-21swapper/110:53:191
254872899280,27cyclictest0-21swapper/110:53:191
254872899280,27cyclictest0-21swapper/109:33:151
2548725992826,2cyclictest0-21swapper/011:48:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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