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2026-08-04 - 13:12
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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 Tue Aug 04, 2026 00:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41782512235173,52sleep40-21swapper/419:09:334
41780142225166,19sleep10-21swapper/119:06:081
41780432223194,19sleep00-21swapper/019:06:320
41782072214185,19sleep50-21swapper/519:08:545
41782582210181,19sleep20-21swapper/219:09:392
41780282207179,18sleep60-21swapper/619:06:216
41780702206174,20sleep70-21swapper/719:06:567
41779682202173,19sleep30-21swapper/319:05:303
524672580,0sleep40-21swapper/421:09:564
4179962993432,1cyclictest0-21swapper/200:35:022
417997499330,32cyclictest52975-21cron21:10:017
417996099330,32cyclictest53071-21munin-run21:10:021
4179974993227,4cyclictest1-21systemd23:00:017
417996999320,4cyclictest58576-21cron21:20:015
417996099320,31cyclictest29185-21/usr/sbin/munin20:30:011
4179956993227,4cyclictest4182630-21unix_chkpwd19:15:010
417997499310,30cyclictest4191711-21cron19:30:017
4179967993128,2cyclictest1-21systemd21:50:014
417996799310,30cyclictest20012-21awk20:10:014
417996299310,28cyclictest0-21swapper/223:04:522
4179956993126,4cyclictest64379-21latency_hist21:30:010
4179974993025,4cyclictest112191-21latency_hist22:55:027
417997499300,29cyclictest0-21swapper/723:39:507
4179967993028,1cyclictest0-21swapper/400:14:574
417996799300,29cyclictest55772-21cron21:15:014
417996499300,29cyclictest112218-21ls22:55:023
417996499300,29cyclictest0-21swapper/320:39:523
417996299300,2cyclictest89425-21latency_hist22:15:022
417996299300,29cyclictest4185599-21cron19:20:012
417996099300,29cyclictest0-21swapper/120:48:031
4179974992927,1cyclictest290-21plymouthd22:45:017
417997499290,28cyclictest132294-21apt-get23:34:547
417997499290,28cyclictest0-21swapper/723:28:157
417997499290,28cyclictest0-21swapper/722:49:557
417997499290,28cyclictest0-21swapper/722:31:487
417997499290,28cyclictest0-21swapper/719:34:537
417997499290,28cyclictest0-21swapper/719:14:557
417997499290,28cyclictest0-21swapper/700:15:037
4179973992927,1cyclictest1-21systemd23:40:006
417997399290,28cyclictest48702-21apt-get21:04:526
417997399290,28cyclictest0-21swapper/619:45:076
417997399290,1cyclictest62671-21apt-get21:29:536
4179969992926,2cyclictest61367-21cron21:25:025
417996999290,29cyclictest96910-21cat22:29:565
417996999290,28cyclictest107-21kcompactd000:36:005
417996999290,28cyclictest0-21swapper/500:19:535
417996999290,1cyclictest126733-21apt-get23:24:545
417996999290,1cyclictest1-21systemd20:15:015
417996999290,1cyclictest0-21swapper/523:20:015
417996999290,1cyclictest0-21swapper/521:00:015
4179967992928,1cyclictest0-21swapper/420:45:234
4179967992925,3cyclictest139226-21awk23:45:004
417996799290,28cyclictest13984-21munin-run20:00:004
417996799290,28cyclictest0-21swapper/422:59:544
417996799290,28cyclictest0-21swapper/419:45:064
417996799290,1cyclictest57096-21apt-get21:19:534
417996499290,28cyclictest0-21swapper/323:34:533
417996499290,28cyclictest0-21swapper/320:29:523
417996499290,28cyclictest0-21swapper/319:29:523
417996499290,28cyclictest0-21swapper/300:15:043
417996499290,1cyclictest0-21swapper/323:05:013
4179962992928,1cyclictest11274-21appstreamcli19:55:042
4179962992927,1cyclictest81014-21sensors_temp22:00:012
4179962992927,1cyclictest53931-21users21:10:032
4179962992927,1cyclictest0-21swapper/223:25:012
4179962992927,1cyclictest0-21swapper/221:10:012
417996299290,28cyclictest163723-21apt-get00:29:532
417996299290,28cyclictest123936-21apt-get23:19:532
417996299290,28cyclictest0-21swapper/222:59:542
417996299290,28cyclictest0-21swapper/221:39:552
417996299290,28cyclictest0-21swapper/221:04:532
417996299290,28cyclictest0-21swapper/220:29:522
417996299290,28cyclictest0-21swapper/219:36:012
417996299290,1cyclictest107-21kcompactd000:35:272
417996299290,1cyclictest0-21swapper/222:10:012
4179960992928,1cyclictest964-21in:imuxsock21:40:011
4179960992927,1cyclictest1-21systemd00:05:011
417996099290,29cyclictest125604-21cron23:20:011
417996099290,28cyclictest168691-21tail00:35:011
417996099290,28cyclictest0-21swapper/123:14:531
417996099290,28cyclictest0-21swapper/123:09:531
417996099290,28cyclictest0-21swapper/122:19:521
417996099290,28cyclictest0-21swapper/122:14:531
417996099290,28cyclictest0-21swapper/120:59:521
417996099290,28cyclictest0-21swapper/119:54:531
417996099290,28cyclictest0-21swapper/119:45:081
417996099290,28cyclictest0-21swapper/100:25:011
417996099290,1cyclictest151800-21apt-get00:09:521
4179956992928,1cyclictest0-21swapper/019:35:010
4179956992927,1cyclictest0-21swapper/021:49:530
4179956992927,1cyclictest0-21swapper/000:15:010
417995699290,29cyclictest37572-21apt-get20:44:540
417995699290,28cyclictest0-21swapper/023:09:540
417995699290,28cyclictest0-21swapper/022:54:520
417995699290,28cyclictest0-21swapper/022:49:540
417995699290,28cyclictest0-21swapper/022:35:010
417995699290,28cyclictest0-21swapper/000:09:520
417995699290,1cyclictest0-21swapper/000:15:030
4179974992828,0cyclictest0-21swapper/723:54:537
4179974992828,0cyclictest0-21swapper/722:39:537
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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