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2025-12-08 - 20:55
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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 Mon Dec 08, 2025 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26020132230174,18sleep60-21swapper/607:08:036
26021132226188,24sleep30-21swapper/307:09:293
26021502225192,21sleep00-21swapper/007:09:580
26021412221188,21sleep20-21swapper/207:09:522
26019292219186,21sleep50-21swapper/507:06:505
26021062218182,22sleep70-21swapper/707:09:257
26021092212179,21sleep10-21swapper/107:09:271
26021142211177,21sleep40-21swapper/407:09:304
2602369996339,24cyclictest0-21swapper/708:06:277
260235499350,21cyclictest0-21swapper/309:05:543
2602354993410,24cyclictest0-21swapper/308:06:273
260236799330,28cyclictest0-21swapper/611:10:556
260235499320,31cyclictest2654409-21sh08:45:003
2602367993127,1cyclictest0-21swapper/608:40:546
260236399310,3cyclictest2604929-21apt07:15:005
260236399310,30cyclictest2697515-21sh10:05:005
2602359993126,4cyclictest0-21swapper/408:10:524
260234499310,3cyclictest2643365-21sh08:25:000
260234499310,30cyclictest0-21swapper/008:40:540
2602363993027,2cyclictest3820478-21systemd-journal07:25:005
2602363993027,2cyclictest2681345-21sh09:35:005
2602359993027,3cyclictest0-21swapper/408:40:544
260235999300,1cyclictest2621804-21latency_hist07:45:004
260235999300,0cyclictest0-21swapper/407:50:554
260235499300,30cyclictest2657127-21awk08:50:003
260235499300,29cyclictest2614179-21apt-get07:30:543
2602347993027,2cyclictest2722027-21turbostat.cron10:50:001
2602347993027,2cyclictest2719348-21munin-run10:45:001
2602344993027,3cyclictest0-21swapper/008:10:520
2602344993026,3cyclictest0-21swapper/012:35:550
260234499300,29cyclictest0-21swapper/007:50:550
260234499300,0cyclictest0-21swapper/011:30:550
2602369992927,1cyclictest0-21swapper/709:45:557
260236999290,28cyclictest0-21swapper/712:05:577
260236999290,28cyclictest0-21swapper/709:05:557
260236999290,1cyclictest0-21swapper/712:15:007
2602367992927,1cyclictest0-21swapper/607:30:546
260236799290,28cyclictest0-21swapper/607:50:556
2602363992927,1cyclictest0-21swapper/509:25:005
260236399290,29cyclictest0-21swapper/512:40:005
260236399290,28cyclictest0-21swapper/508:10:525
260236399290,28cyclictest0-21swapper/508:00:545
260236399290,1cyclictest0-21swapper/512:05:585
2602359992928,1cyclictest0-21swapper/410:45:574
2602359992927,1cyclictest0-21swapper/407:20:534
2602359992923,5cyclictest2624527-21idleruntime-cro07:50:004
260235999290,28cyclictest0-21swapper/409:15:574
260235999290,28cyclictest0-21swapper/408:25:524
260235999290,28cyclictest0-21swapper/407:30:544
2602354992928,0cyclictest0-21swapper/312:25:543
260235499290,28cyclictest2616869-21apt-get07:35:543
260235499290,28cyclictest0-21swapper/312:05:003
260235499290,28cyclictest0-21swapper/307:45:543
260235499290,1cyclictest2632573-21sh08:05:003
260235499290,1cyclictest0-21swapper/312:10:003
260235499290,0cyclictest0-21swapper/310:20:553
2602349992927,1cyclictest3820478-21systemd-journal08:30:002
2602349992926,2cyclictest3820478-21systemd-journal08:25:002
2602349992924,4cyclictest2621806-21debian-sa107:45:002
260234999290,28cyclictest0-21swapper/211:55:582
260234999290,28cyclictest0-21swapper/209:55:552
260234999290,28cyclictest0-21swapper/207:10:552
260234999290,1cyclictest2665173-21sh09:05:002
2602347992927,1cyclictest2702895-21sh10:15:001
2602347992927,1cyclictest2678667-21munin-run09:30:001
2602347992927,1cyclictest2635756-21apt-get08:10:521
2602347992926,2cyclictest3820478-21systemd-journal10:20:001
260234799290,28cyclictest0-21swapper/111:45:021
260234799290,28cyclictest0-21swapper/111:15:541
260234799290,1cyclictest2708303-21apt10:25:001
2602344992927,1cyclictest3820478-21systemd-journal09:45:000
2602344992925,4cyclictest0-21swapper/007:50:000
260234499290,28cyclictest0-21swapper/010:45:570
260234499290,28cyclictest0-21swapper/007:40:000
260234499290,28cyclictest0-21swapper/007:20:530
260234499290,1cyclictest2621809-21sh07:45:000
2602369992828,0cyclictest0-21swapper/709:10:547
2602369992827,1cyclictest0-21swapper/708:15:007
260236999280,27cyclictest0-21swapper/709:00:577
2602363992827,1cyclictest0-21swapper/508:45:005
2602363992826,1cyclictest2722504-21apt-get10:50:555
2602359992826,1cyclictest0-21swapper/407:40:004
260235999280,27cyclictest0-21swapper/411:50:554
2602354992827,1cyclictest2725190-21apt-get10:55:553
2602354992827,1cyclictest0-21swapper/309:35:553
2602354992827,1cyclictest0-21swapper/309:35:553
2602349992828,0cyclictest0-21swapper/209:30:552
2602349992825,3cyclictest0-21swapper/212:35:552
2602347992827,1cyclictest0-21swapper/109:55:551
2602347992827,0cyclictest0-21swapper/110:30:561
2602347992826,1cyclictest0-21swapper/108:50:001
2602347992826,1cyclictest0-21swapper/107:50:551
2602344992827,1cyclictest0-21swapper/011:45:020
2602344992827,1cyclictest0-21swapper/009:50:550
2602369992726,1cyclictest0-21swapper/710:30:567
2602369992725,1cyclictest2735961-21apt-get11:15:547
260236999270,0cyclictest0-21swapper/711:10:547
2602367992727,0cyclictest0-21swapper/609:15:576
2602367992726,1cyclictest0-21swapper/608:00:546
2602363992727,0cyclictest0-21swapper/511:45:545
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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