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2026-04-13 - 18:00
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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 Apr 13, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16433322238179,21sleep50-21swapper/507:05:455
16454572216186,20sleep40-21swapper/407:08:264
16434012216186,19sleep00-21swapper/007:06:450
16455292214182,20sleep20-21swapper/207:09:292
16434522213159,17sleep60-21swapper/607:07:316
16454722211181,19sleep10-21swapper/107:08:391
16433232209182,17sleep70-21swapper/707:05:407
16433012208178,19sleep30-21swapper/307:05:203
17459362560,0sleep10-21swapper/110:13:041
1645812993329,4cyclictest16450irq/4-ttyS011:40:017
1645799993228,3cyclictest700-21rs:main3
164579799320,31cyclictest1727937-21sh09:40:012
164579799320,28cyclictest0-21swapper/211:07:572
164579399311,29cyclictest0-21swapper/109:55:011
164578899310,30cyclictest681-21dbus-daemon10:35:010
164578899310,30cyclictest1785035-21latency_hist11:25:020
1645812993028,1cyclictest278-21plymouthd08:50:017
1645812993026,3cyclictest1703455-21munin-run08:55:017
164581299300,29cyclictest1-21systemd09:30:017
164581299300,29cyclictest0-21swapper/711:00:027
1645808993028,1cyclictest0-21swapper/612:30:016
1645806993027,2cyclictest1722567-21apt09:30:015
164580399300,29cyclictest917-21mta-sts-daemon11:00:004
164579999300,29cyclictest680-21avahi-daemon12:05:023
164579999300,29cyclictest1768592-21cron10:55:013
164579999300,29cyclictest0-21swapper/311:52:593
1645797993027,2cyclictest1676267-21apt08:05:012
164579799300,2cyclictest1749553-21unin-run10:20:012
164579799300,2cyclictest1749553-21unin-run10:20:002
1645793993028,1cyclictest0-21swapper/108:58:001
164579399300,29cyclictest1820108-21apt-config12:30:001
164578899300,2cyclictest369-21systemd-journal10:30:010
164578899300,29cyclictest1822984-21sh12:35:010
164578899300,29cyclictest0-21swapper/007:37:580
1645812992927,1cyclictest1685234-21apt-get08:23:007
1645812992927,1cyclictest0-21swapper/707:40:027
164581299290,28cyclictest0-21swapper/709:00:017
164581299290,28cyclictest0-21swapper/708:15:017
164581299290,1cyclictest1660119-21systemd-run07:35:017
164581299290,0cyclictest0-21swapper/710:23:017
164581299290,0cyclictest0-21swapper/710:23:007
1645808992927,1cyclictest1-21systemd11:10:026
1645808992927,1cyclictest0-21swapper/611:05:026
1645808992927,1cyclictest0-21swapper/608:07:596
1645808992927,1cyclictest0-21swapper/607:52:596
1645808992927,1cyclictest0-21swapper/607:27:596
164580899290,28cyclictest0-21swapper/612:20:016
164580899290,28cyclictest0-21swapper/610:30:006
164580899290,1cyclictest1806582-21turbostat.cron12:05:026
164580899290,1cyclictest0-21swapper/609:15:016
1645806992926,2cyclictest1654503-21apt-config07:25:025
164580699290,29cyclictest1717220-21sendmail-msp09:20:015
164580699290,28cyclictest0-21swapper/512:32:585
164580699290,28cyclictest0-21swapper/509:47:585
164580699290,28cyclictest0-21swapper/509:37:595
164580699290,28cyclictest0-21swapper/509:12:595
164580699290,28cyclictest0-21swapper/507:47:595
164580699290,1cyclictest1660727-21apt-get07:37:575
1645803992927,1cyclictest1763855-21apt-get10:48:004
1645803992927,1cyclictest1665509-21munin-run07:45:004
1645803992927,1cyclictest1655327-21apt-get07:27:594
1645803992927,1cyclictest0-21swapper/408:55:014
164580399290,28cyclictest1674207-21http08:02:594
164580399290,28cyclictest0-21swapper/409:28:004
164580399290,28cyclictest0-21swapper/408:07:584
164580399290,28cyclictest0-21swapper/407:47:594
1645799992927,1cyclictest0-21swapper/310:07:593
1645799992927,1cyclictest0-21swapper/309:42:593
164579999290,28cyclictest0-21swapper/311:07:573
164579999290,28cyclictest0-21swapper/310:18:003
164579999290,28cyclictest0-21swapper/310:17:593
164579999290,1cyclictest0-21swapper/309:50:013
164579999290,1cyclictest0-21swapper/308:17:583
1645797992927,1cyclictest1785657-21apt-get11:27:572
1645797992927,1cyclictest1782969-21apt-get11:22:582
1645797992925,3cyclictest1795811-21debian-sa111:45:022
164579799290,28cyclictest0-21swapper/212:07:582
164579799290,28cyclictest0-21swapper/209:23:002
164579799290,1cyclictest1720501-21apt-get09:27:582
1645793992927,1cyclictest0-21swapper/108:12:591
1645793992927,1cyclictest0-21swapper/107:32:591
164579399290,29cyclictest1-21systemd07:15:021
164579399290,28cyclictest0-21swapper/110:53:011
164579399290,28cyclictest0-21swapper/109:37:591
164579399290,28cyclictest0-21swapper/107:27:581
164578899290,28cyclictest0-21swapper/010:57:580
164578899290,28cyclictest0-21swapper/008:07:590
164578899290,28cyclictest0-21swapper/007:32:580
164578899290,28cyclictest0-21swapper/007:12:570
164578899290,1cyclictest0-21swapper/007:55:000
1645812992827,1cyclictest0-21swapper/710:45:027
1645812992827,1cyclictest0-21swapper/708:32:597
1645812992826,1cyclictest1814643-21sh12:20:017
1645812992826,1cyclictest1725879-21apt-get09:37:597
1645812992824,3cyclictest0-21swapper/709:23:007
164581299280,27cyclictest0-21swapper/709:17:587
164581299280,27cyclictest0-21swapper/707:12:577
1645808992826,1cyclictest1701376-21apt-get08:52:576
164580899280,27cyclictest0-21swapper/610:57:586
164580899280,27cyclictest0-21swapper/607:37:586
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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