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2025-12-13 - 19:15
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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 Sat Dec 13, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32392672233179,17sleep50-21swapper/507:05:075
32392742230172,19sleep30-21swapper/307:05:123
32394852226193,21sleep00-21swapper/007:08:150
32393332219192,17sleep60-21swapper/607:06:056
32394782214186,18sleep20-21swapper/207:08:092
32395362209180,18sleep10-21swapper/107:08:561
32392862209176,21sleep40-21swapper/407:05:234
32392892206179,17sleep70-21swapper/707:05:257
3239847993937,2cyclictest1-21systemd08:55:014
323985399310,30cyclictest3400630-21sh12:05:006
323984399310,3cyclictest3283773-21sh08:30:023
323984399310,3cyclictest3283773-21sh08:30:023
3239855993028,1cyclictest16450irq/4-ttyS010:10:017
3239855993027,2cyclictest16450irq/4-ttyS012:05:017
3239855993026,3cyclictest3329568-21munin-run09:55:027
323985599300,2cyclictest0-21swapper/712:00:007
323985599300,29cyclictest3245779-21dump-pmu-power07:20:007
323985599300,29cyclictest0-21swapper/711:48:177
323985399300,30cyclictest3291865-21turbostat.cron08:45:026
323984899300,29cyclictest3318785-21sh09:35:025
323984799300,29cyclictest3302637-21dump-pmu-power09:05:014
323984099300,29cyclictest0-21swapper/210:58:172
323984099300,29cyclictest0-21swapper/209:33:172
3239837993027,2cyclictest698-21in:imuxsock11:40:001
3239833993026,3cyclictest3264658-21dump-pmu-power07:55:020
3239855992927,1cyclictest3305359-21basename09:10:017
3239855992927,1cyclictest0-21swapper/707:55:027
323985599290,28cyclictest3412312-21apt-get12:28:167
323985599290,28cyclictest0-21swapper/711:53:177
323985599290,28cyclictest0-21swapper/710:23:187
323985599290,1cyclictest0-21swapper/711:18:177
3239853992926,2cyclictest3227737-21munin-node07:15:016
323985399290,28cyclictest0-21swapper/609:08:166
323985399290,1cyclictest0-21swapper/608:23:186
3239848992927,1cyclictest3289819-21apt-get08:43:195
3239848992927,1cyclictest0-21swapper/508:23:185
3239848992927,1cyclictest0-21swapper/508:05:025
323984899290,28cyclictest3354978-21apt-get10:43:185
323984899290,28cyclictest0-21swapper/512:23:175
3239847992927,1cyclictest698-21in:imuxsock09:25:014
3239847992926,2cyclictest3384468-21apt11:35:014
323984799290,28cyclictest0-21swapper/409:28:174
323984799290,1cyclictest3343277-21sh10:20:014
323984399290,28cyclictest0-21swapper/310:48:173
323984399290,28cyclictest0-21swapper/309:33:183
323984399290,1cyclictest3417307-21idleruntime-cro12:35:023
3239840992927,1cyclictest3395248-21munin-run11:55:002
3239840992927,1cyclictest3351623-21sh10:35:012
3239840992927,1cyclictest0-21swapper/207:43:192
3239840992925,3cyclictest3264659-21dump-pmu-power07:55:012
323984099290,28cyclictest3254502-21apt-get07:38:172
323984099290,28cyclictest0-21swapper/208:18:162
323984099290,1cyclictest3382423-21apt-get11:33:172
3239837992927,1cyclictest0-21swapper/112:40:021
3239837992927,1cyclictest0-21swapper/110:10:011
323983799290,28cyclictest0-21swapper/107:58:171
323983799290,28cyclictest0-21swapper/107:43:171
3239833992927,1cyclictest3395271-21basename11:55:010
3239833992927,1cyclictest0-21swapper/010:35:000
3239833992927,1cyclictest0-21swapper/010:30:010
323983399290,28cyclictest0-21swapper/010:58:170
323983399290,28cyclictest0-21swapper/008:23:170
323983399290,28cyclictest0-21swapper/008:18:170
323985599280,1cyclictest3300588-21apt-get09:03:187
323985599280,0cyclictest0-21swapper/707:48:177
3239853992827,1cyclictest0-21swapper/608:00:026
323985399280,28cyclictest3254502-21apt-get07:38:186
323985399280,28cyclictest0-21swapper/610:45:026
323985399280,28cyclictest0-21swapper/608:05:016
323985399280,27cyclictest0-21swapper/610:28:176
323985399280,1cyclictest0-21swapper/611:43:176
323985399280,0cyclictest0-21swapper/611:23:176
3239848992826,1cyclictest0-21swapper/509:13:155
3239848992826,1cyclictest0-21swapper/507:28:165
3239848992824,3cyclictest3368055-21turbostat.cron11:05:005
323984899280,0cyclictest0-21swapper/510:33:185
3239847992828,0cyclictest0-21swapper/407:48:164
323984799280,28cyclictest0-21swapper/411:53:164
323984799280,28cyclictest0-21swapper/408:08:164
323984799280,1cyclictest0-21swapper/408:05:024
323984399280,0cyclictest0-21swapper/310:28:183
323984399280,0cyclictest0-21swapper/310:20:013
323984399280,0cyclictest0-21swapper/308:03:153
3239840992827,1cyclictest0-21swapper/210:30:012
3239837992827,1cyclictest0-21swapper/108:03:141
3239837992826,1cyclictest3240355-21apt-get07:13:131
323983799280,27cyclictest0-21swapper/111:03:151
3239833992828,0cyclictest0-21swapper/007:43:180
3239833992827,1cyclictest0-21swapper/009:48:200
323983399280,27cyclictest0-21swapper/012:18:160
323983399280,0cyclictest0-21swapper/010:25:020
3239855992727,0cyclictest0-21swapper/710:40:007
3239855992727,0cyclictest0-21swapper/709:38:157
3239855992727,0cyclictest0-21swapper/708:58:187
3239855992727,0cyclictest0-21swapper/708:18:177
3239855992726,1cyclictest0-21swapper/707:30:027
3239855992725,1cyclictest0-21swapper/710:30:007
323985599270,0cyclictest0-21swapper/712:23:167
3239853992727,0cyclictest0-21swapper/611:53:176
3239853992727,0cyclictest0-21swapper/609:48:206
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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