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2025-12-27 - 20:03
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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 Dec 27, 2025 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21398832234174,48sleep10-21swapper/107:06:531
21419512221168,42sleep60-21swapper/607:08:436
21419742216186,19sleep20-21swapper/207:09:032
21398472214185,18sleep30-21swapper/307:06:233
21398312213187,17sleep50-21swapper/507:06:095
21398442211180,20sleep00-21swapper/007:06:190
21398302211181,19sleep40-21swapper/407:06:084
21419232209181,18sleep70-21swapper/707:08:277
214226099333,2cyclictest2270532-21sh11:05:000
214227399310,30cyclictest2170031-21dump-pmu-power08:00:024
214227099312,1cyclictest2148206-21latency_hist07:20:022
2142266993131,0cyclictest0-21swapper/111:10:001
2142266993126,4cyclictest2284001-21latency_hist11:30:001
214228299300,30cyclictest2237902-21apt10:05:017
2142279993027,2cyclictest2221476-21debian-sa109:35:016
2142279993027,2cyclictest2213393-21turbostat.cron09:20:026
214227799300,2cyclictest2178118-21idleruntime-cro08:15:025
214227399300,29cyclictest2245961-21cron10:20:014
2142271993028,1cyclictest2319530-21apt12:35:013
2142271993028,1cyclictest2172750-21munin-run08:05:023
214227199300,29cyclictest2303130-21munin-run12:05:023
214227199300,29cyclictest0-21swapper/309:08:163
214227199300,29cyclictest0-21swapper/307:25:013
214226699300,29cyclictest1-21systemd08:25:011
214226099300,29cyclictest2278601-21sh11:20:010
214228299290,28cyclictest681-21dbus-daemon11:45:027
214228299290,28cyclictest2271180-21apt-get11:08:167
214228299290,28cyclictest2142793-21apt-get07:13:167
214228299290,28cyclictest0-21swapper/708:38:157
214228299290,1cyclictest2308536-21systemd-run12:15:027
214228299290,1cyclictest2308536-21systemd-run12:15:017
2142279992927,1cyclictest0-21swapper/610:18:166
2142279992927,1cyclictest0-21swapper/610:10:016
214227999290,28cyclictest0-21swapper/612:08:156
214227999290,28cyclictest0-21swapper/611:18:146
214227999290,28cyclictest0-21swapper/611:13:146
214227799290,28cyclictest2183527-21munin-run08:25:015
214227799290,1cyclictest2227515-21apt-get09:48:185
2142273992927,1cyclictest2183515-21idleruntime-cro08:25:024
2142273992927,1cyclictest1-21systemd12:00:024
214227399290,28cyclictest2224825-21apt-get09:43:144
214227399290,28cyclictest0-21swapper/412:03:144
214227399290,28cyclictest0-21swapper/408:33:144
2142271992927,1cyclictest0-21swapper/308:07:243
2142271992927,1cyclictest0-21swapper/307:48:143
2142271992927,1cyclictest0-21swapper/307:20:023
214227199290,28cyclictest0-21swapper/312:08:143
214227199290,28cyclictest0-21swapper/310:28:193
214227199290,28cyclictest0-21swapper/309:53:163
214227199290,28cyclictest0-21swapper/309:03:173
214227199290,28cyclictest0-21swapper/308:28:163
214227199290,28cyclictest0-21swapper/307:58:153
214227199290,28cyclictest0-21swapper/307:33:163
214227199290,1cyclictest2178762-21apt-get08:18:173
214227199290,1cyclictest0-21swapper/308:35:013
2142270992927,1cyclictest0-21swapper/211:18:162
214227099290,28cyclictest2265782-21apt-get10:58:142
214227099290,28cyclictest0-21swapper/212:28:162
214227099290,28cyclictest0-21swapper/208:53:142
214227099290,28cyclictest0-21swapper/208:23:162
2142266992928,1cyclictest681-21dbus-daemon07:15:011
2142266992928,1cyclictest311rcuc/112:25:021
2142266992928,1cyclictest311rcuc/112:25:021
2142266992927,2cyclictest278-21plymouthd07:40:011
214226699290,29cyclictest0-21swapper/109:50:001
214226699290,28cyclictest0-21swapper/111:30:021
2142260992927,1cyclictest2218786-21turbostat.cron09:30:010
214226099290,28cyclictest0-21swapper/012:15:020
214226099290,28cyclictest0-21swapper/012:15:010
214226099290,28cyclictest0-21swapper/011:33:160
214226099290,28cyclictest0-21swapper/010:58:150
214226099290,28cyclictest0-21swapper/010:23:150
214226099290,28cyclictest0-21swapper/009:43:150
214226099290,28cyclictest0-21swapper/008:43:130
214226099290,1cyclictest0-21swapper/008:13:170
2142282992828,0cyclictest0-21swapper/711:53:177
2142282992827,1cyclictest0-21swapper/711:15:007
214228299280,28cyclictest2314155-21debian-sa112:25:027
214228299280,28cyclictest2314155-21debian-sa112:25:027
214228299280,0cyclictest0-21swapper/712:38:137
214228299280,0cyclictest0-21swapper/709:28:157
2142279992827,1cyclictest0-21swapper/610:38:166
2142279992826,2cyclictest0-21swapper/610:55:016
2142279992826,1cyclictest0-21swapper/608:33:156
2142279992826,1cyclictest0-21swapper/608:23:146
214227999280,28cyclictest0-21swapper/612:15:026
214227999280,28cyclictest0-21swapper/612:15:026
214227999280,27cyclictest0-21swapper/611:23:186
2142277992828,0cyclictest2284903-21apt-get11:33:175
2142277992827,1cyclictest2254695-21apt-get10:38:165
2142277992826,1cyclictest2263093-21apt-get10:53:145
214227799280,28cyclictest0-21swapper/511:45:015
214227799280,28cyclictest0-21swapper/509:05:025
214227799280,27cyclictest0-21swapper/508:08:155
214227399280,27cyclictest0-21swapper/412:28:164
2142270992828,0cyclictest0-21swapper/212:18:152
2142270992828,0cyclictest0-21swapper/212:18:142
2142270992827,0cyclictest0-21swapper/212:38:132
2142270992826,1cyclictest2273866-21apt-get11:13:142
2142270992826,1cyclictest2238546-21apt-get10:08:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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