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2025-12-07 - 21:05
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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 07, 2025 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34366722223168,18sleep30-21swapper/307:07:513
34367672221191,19sleep40-21swapper/407:09:124
34367262221166,17sleep10-21swapper/107:08:371
34366782218166,17sleep00-21swapper/007:07:560
34365652213174,26sleep60-21swapper/607:06:176
34367962212183,18sleep50-21swapper/507:09:375
34366062211178,21sleep20-21swapper/207:06:532
34366132210181,18sleep70-21swapper/707:06:587
34590742530,0sleep460-21ksoftirqd/407:46:034
34590742530,0sleep460-21ksoftirqd/407:46:034
343702399480,24cyclictest0-21swapper/409:04:304
343701099360,2cyclictest3541104-21apt10:20:000
3437033993228,3cyclictest3617321-21sh12:40:007
3437024993127,3cyclictest3442969-21sh07:20:005
343701399310,30cyclictest0-21swapper/107:55:551
343701099310,3cyclictest0-21swapper/008:45:540
343701099310,30cyclictest3500163-21sh09:05:000
343701099310,30cyclictest3489330-21sh08:45:000
3437033993028,1cyclictest0-21swapper/711:35:547
3437033993027,2cyclictest1-21systemd08:40:007
3437033993026,3cyclictest3445681-21idleruntime-cro07:25:007
343703399300,29cyclictest3554582-21sh10:45:007
343703399300,29cyclictest3475860-21munin-run08:20:007
343702799300,29cyclictest3820478-21systemd-journal07:25:006
3437024993027,2cyclictest3565362-21sh11:05:005
3437023993027,2cyclictest3514386-21apt-get09:30:574
3437019993028,1cyclictest0-21swapper/309:00:543
343701699300,2cyclictest3820478-21systemd-journal07:55:002
343701099300,28cyclictest3590615-21apt-get11:50:570
343701099300,1cyclictest3451823-21apt-get07:35:550
343703399290,28cyclictest3440762-21apt-get07:15:567
343703399290,28cyclictest0-21swapper/711:45:007
343702799290,28cyclictest3546975-21apt-get10:30:536
343702799290,28cyclictest0-21swapper/611:20:556
343702799290,28cyclictest0-21swapper/610:05:576
343702799290,28cyclictest0-21swapper/609:55:566
343702799290,1cyclictest3486625-21dump-pmu-power08:40:006
343702499290,28cyclictest3612423-21apt-get12:30:545
343702499290,28cyclictest3503348-21apt-get09:10:555
343702499290,28cyclictest0-21swapper/511:10:565
343702499290,28cyclictest0-21swapper/507:20:565
343702399290,28cyclictest0-21swapper/411:20:544
343702399290,28cyclictest0-21swapper/410:45:544
343702399290,1cyclictest3560445-21apt-get10:55:564
3437019992927,1cyclictest0-21swapper/311:15:553
3437019992925,3cyclictest3820478-21systemd-journal10:55:003
3437019992925,3cyclictest3590130-21sh11:50:003
343701999290,29cyclictest3451109-21apt-config07:35:003
343701999290,29cyclictest3451109-21apt-config07:35:003
343701999290,28cyclictest0-21swapper/311:50:573
343701999290,28cyclictest0-21swapper/308:10:003
343701999290,28cyclictest0-21swapper/307:35:553
3437016992927,1cyclictest3571001-21latency_hist11:15:002
343701699290,28cyclictest3568104-21apt-config11:10:002
343701699290,28cyclictest3484417-21apt-get08:35:552
343701699290,28cyclictest0-21swapper/212:00:572
343701699290,28cyclictest0-21swapper/210:40:552
343701699290,1cyclictest0-21swapper/209:25:562
3437013992928,1cyclictest0-21swapper/109:10:551
3437013992927,1cyclictest3454531-21apt-get07:40:541
3437013992927,1cyclictest3454531-21apt-get07:40:541
343701399290,28cyclictest0-21swapper/108:55:541
343701099290,28cyclictest0-21swapper/012:20:540
343701099290,28cyclictest0-21swapper/012:15:550
343701099290,28cyclictest0-21swapper/012:15:550
3437027992827,1cyclictest3552377-21apt-get10:40:546
3437024992826,1cyclictest3533247-21apt-get10:05:585
343702499280,1cyclictest0-21swapper/507:40:545
343702499280,1cyclictest0-21swapper/507:40:545
343702399280,27cyclictest0-21swapper/410:40:554
343702399280,0cyclictest0-21swapper/407:35:004
343702399280,0cyclictest0-21swapper/407:35:004
3437019992828,0cyclictest0-21swapper/312:35:543
3437019992827,1cyclictest0-21swapper/312:10:013
3437019992827,1cyclictest0-21swapper/312:10:013
3437019992827,1cyclictest0-21swapper/308:25:583
3437019992827,1cyclictest0-21swapper/307:15:563
3437019992826,1cyclictest3538703-21sed10:15:003
3437019992826,1cyclictest3506032-21apt-get09:15:543
3437013992828,0cyclictest0-21swapper/111:10:011
3437013992827,1cyclictest3527846-21apt-get09:55:561
3437013992826,2cyclictest0-21swapper/109:30:021
3437013992826,1cyclictest3544294-21apt-get10:25:581
3437013992825,2cyclictest0-21swapper/110:55:571
343701399280,0cyclictest0-21swapper/109:35:551
343701099280,0cyclictest0-21swapper/011:35:540
343701099280,0cyclictest0-21swapper/007:30:550
343701099280,0cyclictest0-21swapper/007:30:550
3437033992727,0cyclictest0-21swapper/710:15:537
3437033992727,0cyclictest0-21swapper/709:30:577
3437033992725,1cyclictest3598697-21apt-get12:05:557
3437033992725,1cyclictest3598697-21apt-get12:05:557
3437033992725,1cyclictest0-21swapper/711:10:007
343703399270,0cyclictest0-21swapper/712:30:007
343703399270,0cyclictest0-21swapper/710:25:007
3437027992727,0cyclictest0-21swapper/610:35:566
3437027992727,0cyclictest0-21swapper/608:45:556
3437024992727,0cyclictest0-21swapper/510:40:545
3437024992727,0cyclictest0-21swapper/507:45:545
3437024992727,0cyclictest0-21swapper/507:45:545
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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