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2025-11-21 - 08:37
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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 Fri Nov 21, 2025 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27316112235173,19sleep50-21swapper/519:05:265
27337382227168,19sleep40-21swapper/419:08:064
27336612220193,17sleep60-21swapper/619:07:036
27316242215185,19sleep70-21swapper/719:05:367
27315912213186,17sleep30-21swapper/319:05:083
27315892213186,17sleep10-21swapper/119:05:061
27337992208178,20sleep00-21swapper/019:08:580
27336392203176,17sleep20-21swapper/219:06:432
273407899502,24cyclictest0-21swapper/000:27:240
2734089993431,2cyclictest2909497-21fwupd00:27:244
273408999320,31cyclictest3820478-21systemd-journal00:40:014
2734099993127,3cyclictest2885170-21sh23:45:007
273409499310,30cyclictest2786365-21dump-pmu-power20:45:005
273408099310,30cyclictest430088-21rs:main1
273409999300,28cyclictest0-21swapper/719:45:567
2734095993028,1cyclictest0-21swapper/623:45:566
273409599300,29cyclictest0-21swapper/623:00:006
2734094993028,1cyclictest2847407-21apt-get22:35:585
2734094993028,1cyclictest2743210-21apt-get19:25:575
273409499300,29cyclictest2805735-21cron21:20:005
2734089993027,2cyclictest2896716-21taskset00:05:564
2734089993027,2cyclictest2756450-21sh19:50:014
273408999300,2cyclictest2789314-21dump-pmu-power20:50:004
273408799300,29cyclictest0-21swapper/322:05:573
2734084993028,1cyclictest2882967-21apt-get23:40:572
2734084993028,1cyclictest2790048-21apt-get20:50:572
2734084993028,1cyclictest0-21swapper/219:55:012
273408499300,29cyclictest2827800-21cron22:00:002
273408499300,29cyclictest0-21swapper/220:00:582
273408499300,29cyclictest0-21swapper/219:35:012
273407899300,29cyclictest3820478-21systemd-journal00:10:010
2734099992927,1cyclictest2891290-21apt-get23:55:577
2734099992927,1cyclictest2772614-21dump-pmu-power20:20:007
273409999290,1cyclictest2792743-21apt-get20:56:037
273409999290,1cyclictest0-21swapper/720:50:007
2734095992927,1cyclictest0-21swapper/623:50:586
2734095992927,1cyclictest0-21swapper/622:40:586
273409599290,28cyclictest0-21swapper/620:25:586
273409499290,28cyclictest2885176-21apt-get23:45:005
273409499290,28cyclictest2836365-21apt-get22:15:585
273409499290,28cyclictest0-21swapper/523:20:595
2734089992927,1cyclictest0-21swapper/423:21:004
273408999290,28cyclictest2904803-21apt-get00:20:584
273408999290,28cyclictest2800353-21munin-run21:10:004
273408999290,28cyclictest0-21swapper/422:05:574
273408999290,28cyclictest0-21swapper/419:30:574
273408999290,1cyclictest0-21swapper/400:15:594
2734087992927,2cyclictest2855494-21apt-get22:50:573
2734087992926,2cyclictest2736862-21date19:15:013
273408799290,28cyclictest2896713-21apt-get00:05:563
273408799290,28cyclictest0-21swapper/320:41:003
273408799290,1cyclictest2899403-21apt-get00:10:593
2734084992927,1cyclictest0-21swapper/219:25:572
2734084992926,2cyclictest3820478-21systemd-journal22:45:002
273408499290,28cyclictest2893585-21cups-browsed00:00:012
273408499290,28cyclictest0-21swapper/220:45:002
2734080992928,1cyclictest0-21swapper/122:20:001
273408099290,28cyclictest2784158-21apt-get20:41:001
273408099290,28cyclictest2778760-21apt-get20:31:021
273408099290,1cyclictest0-21swapper/119:40:541
2734078992927,1cyclictest0-21swapper/023:45:560
2734078992927,1cyclictest0-21swapper/020:25:580
273407899290,28cyclictest0-21swapper/023:55:570
273407899290,28cyclictest0-21swapper/021:00:570
273407899290,28cyclictest0-21swapper/019:35:010
273407899290,28cyclictest0-21swapper/000:20:580
2734099992828,0cyclictest0-21swapper/720:25:587
2734099992827,0cyclictest0-21swapper/721:45:587
2734099992826,1cyclictest0-21swapper/700:30:587
273409999280,0cyclictest0-21swapper/723:00:577
273409999280,0cyclictest0-21swapper/722:55:587
2734095992827,1cyclictest0-21swapper/600:15:596
2734095992827,0cyclictest0-21swapper/600:30:586
273409599280,0cyclictest0-21swapper/623:36:006
2734094992825,2cyclictest2800341-21idleruntime-cro21:10:005
273409499280,27cyclictest0-21swapper/519:15:585
273409499280,27cyclictest0-21swapper/500:00:575
273409499280,1cyclictest2825592-21apt-get21:55:585
2734089992827,1cyclictest0-21swapper/421:25:014
2734089992827,0cyclictest0-21swapper/419:35:584
2734089992826,1cyclictest2780961-21idleruntime-cro20:35:004
273408999280,0cyclictest0-21swapper/421:20:594
2734087992828,0cyclictest0-21swapper/322:25:583
2734087992828,0cyclictest0-21swapper/300:25:573
2734087992826,1cyclictest2874133-21sh23:25:003
2734084992827,1cyclictest0-21swapper/223:25:572
2734084992827,1cyclictest0-21swapper/200:25:572
2734080992827,1cyclictest0-21swapper/122:55:001
2734080992827,1cyclictest0-21swapper/119:55:571
273408099280,28cyclictest0-21swapper/123:45:561
273408099280,28cyclictest0-21swapper/100:25:571
2734078992827,0cyclictest0-21swapper/000:30:580
2734078992826,1cyclictest2842030-21apt-get22:25:580
2734078992826,1cyclictest0-21swapper/020:45:000
273407899280,28cyclictest0-21swapper/020:10:010
273407899280,1cyclictest0-21swapper/020:56:030
273407899280,0cyclictest0-21swapper/022:15:580
2734099992727,0cyclictest0-21swapper/723:36:007
2734099992727,0cyclictest0-21swapper/721:00:577
2734099992727,0cyclictest0-21swapper/700:20:587
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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