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2026-04-04 - 15:15
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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 Apr 04, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114132237176,48sleep30-21swapper/307:08:523
114062231172,19sleep50-21swapper/507:08:465
92682223175,15sleep40-21swapper/407:05:564
93112216187,19sleep20-21swapper/207:06:342
92652212180,21sleep10-21swapper/107:05:531
93542211181,19sleep70-21swapper/707:07:107
94132207173,21sleep60-21swapper/607:07:586
92442205178,17sleep00-21swapper/007:05:340
935952880,0sleep10-21swapper/109:38:081
1173399350,34cyclictest0-21swapper/508:43:005
1173399340,33cyclictest124080-21turbostat.cron10:35:015
1173399330,32cyclictest61075-21apt08:40:025
1173399330,32cyclictest0-21swapper/512:03:005
1173399320,31cyclictest0-21swapper/509:43:005
11733993126,4cyclictest190095-21sh12:35:015
1173399310,0cyclictest0-21swapper/512:13:015
1173399310,0cyclictest0-21swapper/509:12:585
1173399310,0cyclictest0-21swapper/508:23:065
11726993128,2cyclictest176022-21apt12:10:012
1172299310,30cyclictest72332-21cat09:00:021
1172299310,30cyclictest107647-21sh10:05:001
1173999300,2cyclictest129505-21awk10:45:017
1173999300,29cyclictest0-21swapper/710:15:017
1173999300,29cyclictest0-21swapper/709:05:027
1173999300,1cyclictest0-21swapper/708:55:027
1173799300,29cyclictest73011-21apt-get09:03:006
1173799300,29cyclictest181415-21munin-run12:20:026
1173799300,1cyclictest86112-21latency_hist09:25:016
1173399300,3cyclictest0-21swapper/507:18:005
1173399300,29cyclictest91488-21sh09:35:015
1173399300,29cyclictest0-21swapper/510:17:585
1172899300,29cyclictest108281-21sed10:05:013
1172899300,28cyclictest135470-21apt-get10:58:013
11726993028,1cyclictest0-21swapper/211:45:002
1172699300,2cyclictest69463-21systemd-run08:55:022
1172699300,29cyclictest189483-21cron12:35:022
11722993028,1cyclictest61074-21sh08:40:011
1172299300,29cyclictest53011-21latency_hist08:25:021
1172299300,29cyclictest192438-21apt12:40:021
11739992927,1cyclictest78386-21apt-get09:12:597
11739992927,1cyclictest70042-21apt-get08:58:017
11739992927,1cyclictest122016-21http10:32:597
1173999290,28cyclictest81079-21apt-get09:18:017
1173999290,28cyclictest0-21swapper/707:48:017
1173999290,28cyclictest0-21swapper/707:23:017
1173999290,1cyclictest89427-21apt-get09:33:017
1173999290,1cyclictest165873-21apt-get11:52:597
11737992927,1cyclictest58383-21sh08:35:026
11737992927,1cyclictest55687-21cron08:30:026
1173799290,28cyclictest0-21swapper/611:15:026
1173799290,28cyclictest0-21swapper/608:40:026
1173799290,28cyclictest0-21swapper/608:08:016
1173799290,28cyclictest0-21swapper/607:32:596
1173799290,1cyclictest0-21swapper/610:13:016
11733992925,3cyclictest0-21swapper/511:43:005
1173399290,28cyclictest1-21systemd09:10:015
1173399290,28cyclictest0-21swapper/511:13:015
1173399290,28cyclictest0-21swapper/510:05:015
1173399290,28cyclictest0-21swapper/507:50:025
1173399290,20cyclictest0-21swapper/510:58:015
11731992927,1cyclictest20993-21apt-get07:28:014
11731992926,2cyclictest75070-21sh09:05:024
11731992926,2cyclictest104948-21idleruntime-cro10:00:014
1173199290,1cyclictest132784-21http10:53:004
1172899290,28cyclictest44919-21systemd-run08:10:013
1172899290,28cyclictest157279-21http11:37:593
1172899290,28cyclictest0-21swapper/307:13:023
1172899290,28cyclictest0-21swapper/307:13:023
1172899290,1cyclictest64669-21apt-get08:48:013
1172899290,1cyclictest0-21swapper/311:45:003
11726992927,2cyclictest134856-21munin-run10:55:012
11726992927,1cyclictest12228-21apt-get07:13:022
11726992927,1cyclictest12228-21apt-get07:13:022
11726992927,1cyclictest0-21swapper/211:58:002
11726992926,3cyclictest151304-21awk11:25:012
11726992925,3cyclictest39485-21turbostat.cron08:00:022
1172699290,28cyclictest0-21swapper/210:28:002
1172699290,28cyclictest0-21swapper/209:58:002
1172699290,28cyclictest0-21swapper/208:58:002
1172699290,28cyclictest0-21swapper/208:28:012
1172699290,28cyclictest0-21swapper/207:28:022
11722992927,1cyclictest165082-21awk11:50:021
11722992927,1cyclictest0-21swapper/107:55:021
1172299290,28cyclictest0-21swapper/109:27:591
1172299290,1cyclictest176645-21apt-get12:13:001
1172299290,1cyclictest0-21swapper/112:18:001
1172299290,1cyclictest0-21swapper/108:03:011
1171899290,28cyclictest0-21swapper/012:35:020
1171899290,28cyclictest0-21swapper/008:58:020
1171899290,1cyclictest184732-21apt-get12:27:590
1171899290,1cyclictest0-21swapper/010:20:010
11739992827,1cyclictest0-21swapper/710:28:007
11739992827,1cyclictest0-21swapper/709:58:017
11739992826,1cyclictest0-21swapper/711:25:007
1173999280,0cyclictest0-21swapper/708:28:017
11737992827,1cyclictest0-21swapper/611:37:596
11737992827,1cyclictest0-21swapper/607:18:006
11733992827,1cyclictest0-21swapper/511:03:015
11733992826,1cyclictest0-21swapper/511:55:015
1173399280,27cyclictest0-21swapper/508:58:025
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