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2025-12-31 - 07:32
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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 Wed Dec 31, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18446422231176,17sleep20-21swapper/219:07:342
18466742225168,44sleep40-21swapper/419:08:584
18446652224168,18sleep70-21swapper/719:07:567
18446042223165,19sleep30-21swapper/319:07:043
18446452214186,18sleep50-21swapper/519:07:385
18446852213183,19sleep00-21swapper/019:08:130
18446592208177,20sleep10-21swapper/119:07:501
18466762206177,19sleep60-21swapper/619:08:596
1847187995810,24cyclictest0-21swapper/621:13:326
1847183993633,2cyclictest2002659-21sh23:55:005
184717799340,32cyclictest369-21systemd-journal21:45:023
1847189993231,1cyclictest16450irq/4-ttyS000:35:017
1847189993231,1cyclictest16450irq/4-ttyS000:35:017
1847189993228,3cyclictest1926222-21latency_hist21:35:027
184718399320,30cyclictest1945334-21turbostat.cron22:10:015
1847189993129,1cyclictest1864875-21apt-get19:43:147
184718999310,3cyclictest1977907-21latency_hist23:10:017
184718799310,30cyclictest1934597-21awk21:50:016
184717799310,30cyclictest1866919-21sh19:45:023
184716799310,3cyclictest1945335-21latency_hist22:10:000
184716799310,30cyclictest2002663-21sh23:55:010
1847189993028,1cyclictest1934565-21idleruntime-cro21:50:017
184718999300,29cyclictest0-21swapper/719:35:027
1847187993026,3cyclictest2018862-21debian-sa100:25:026
184718799300,29cyclictest1-21systemd19:40:026
184718399300,29cyclictest0-21swapper/500:35:025
184718399300,29cyclictest0-21swapper/500:35:025
184717799300,29cyclictest1904662-21turbostat.cron20:55:023
184717799300,1cyclictest0-21swapper/320:13:143
1847172993028,1cyclictest2026928-21dump-pmu-power00:40:022
1847172993028,1cyclictest2026928-21dump-pmu-power00:40:022
1847189992927,1cyclictest1957014-21http22:33:147
1847189992927,1cyclictest0-21swapper/722:10:007
1847189992926,2cyclictest1964455-21turbostat.cron22:45:007
184718999290,28cyclictest0-21swapper/721:25:027
184718999290,28cyclictest0-21swapper/719:18:157
1847187992927,1cyclictest1965094-21apt-get22:48:166
184718799290,28cyclictest1970468-21apt-get22:58:156
184718799290,28cyclictest0-21swapper/620:23:166
184718799290,28cyclictest0-21swapper/619:33:156
184718799290,1cyclictest681-21dbus-daemon23:25:006
184718799290,1cyclictest0-21swapper/621:00:016
1847183992927,1cyclictest0-21swapper/520:33:145
1847183992925,3cyclictest1899287-21apt20:45:025
184718399290,28cyclictest0-21swapper/522:23:145
184718399290,28cyclictest0-21swapper/521:33:165
184718399290,28cyclictest0-21swapper/521:28:145
184718099290,28cyclictest2016168-21munin-run00:20:014
184718099290,28cyclictest1967783-21http22:53:154
184718099290,28cyclictest0-21swapper/420:48:164
184718099290,28cyclictest0-21swapper/420:23:164
184718099290,28cyclictest0-21swapper/420:18:154
184718099290,1cyclictest1910065-21munin-run21:05:014
1847177992928,1cyclictest0-21swapper/323:58:143
1847177992928,1cyclictest0-21swapper/323:03:163
1847177992927,1cyclictest0-21swapper/322:18:183
1847177992927,1cyclictest0-21swapper/320:28:143
1847177992926,2cyclictest1918139-21cron21:20:023
184717799290,1cyclictest1921484-21apt-get21:28:143
1847172992928,1cyclictest0-21swapper/221:58:132
1847172992927,2cyclictest1896578-21cron20:40:022
184717299290,28cyclictest0-21swapper/221:53:172
1847170992928,1cyclictest0-21swapper/123:18:131
184717099290,29cyclictest0-21swapper/123:05:011
184717099290,28cyclictest0-21swapper/123:23:141
184717099290,28cyclictest0-21swapper/121:13:141
184717099290,28cyclictest0-21swapper/120:18:141
184717099290,28cyclictest0-21swapper/119:43:141
184717099290,28cyclictest0-21swapper/119:38:141
184717099290,1cyclictest0-21swapper/119:35:021
1847167992928,1cyclictest0-21swapper/021:08:150
1847167992927,1cyclictest1899274-21cron20:45:020
1847167992927,1cyclictest0-21swapper/021:38:150
1847167992927,1cyclictest0-21swapper/021:33:160
184716799290,28cyclictest0-21swapper/023:10:030
184716799290,28cyclictest0-21swapper/022:10:010
184716799290,28cyclictest0-21swapper/020:28:130
184716799290,28cyclictest0-21swapper/020:13:150
1847189992827,1cyclictest1981505-21apt-get23:18:137
1847189992827,1cyclictest0-21swapper/719:13:167
1847189992826,1cyclictest1881067-21apt-get20:13:157
1847189992826,1cyclictest1861269-21apt-get19:35:027
184718999280,1cyclictest1935204-21apt-get21:53:177
1847187992827,1cyclictest1926283-21systemd-run21:35:026
1847187992827,1cyclictest0-21swapper/621:43:146
1847187992827,1cyclictest0-21swapper/619:18:146
1847187992826,1cyclictest2014110-21apt-get00:18:146
1847187992826,1cyclictest0-21swapper/621:08:156
184718799280,28cyclictest1983565-21munin-run23:20:016
184718799280,28cyclictest0-21swapper/620:53:166
184718799280,28cyclictest0-21swapper/620:38:176
184718799280,28cyclictest0-21swapper/620:30:016
184718799280,27cyclictest0-21swapper/600:13:156
184718799280,1cyclictest0-21swapper/623:43:146
1847183992826,1cyclictest0-21swapper/522:10:015
1847183992826,1cyclictest0-21swapper/521:45:015
184718399280,28cyclictest1977908-21apt-get23:10:005
184718399280,0cyclictest0-21swapper/520:53:175
184718399280,0cyclictest0-21swapper/519:55:015
1847180992826,1cyclictest0-21swapper/419:45:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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