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2025-12-25 - 09:21
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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 Thu Dec 25, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17829292242183,20sleep60-21swapper/619:05:456
17851142235180,18sleep10-21swapper/119:09:181
17851572234172,19sleep40-21swapper/419:09:544
17829192231171,19sleep50-21swapper/519:05:365
17830752229173,18sleep30-21swapper/319:07:523
17850732226196,19sleep70-21swapper/719:08:437
17851422221167,43sleep00-21swapper/019:09:410
17830742219161,18sleep20-21swapper/219:07:512
18760172550,1sleep133-21ksoftirqd/121:55:001
178540199535,24cyclictest0-21swapper/123:36:381
1785397993228,3cyclictest1941551-21dump-pmu-power23:55:020
1785397993228,3cyclictest1941551-21dump-pmu-power23:55:020
178540399310,28cyclictest0-21swapper/221:53:132
178541599300,29cyclictest0-21swapper/723:25:017
178541599300,29cyclictest0-21swapper/721:30:007
178541599300,1cyclictest0-21swapper/722:28:147
178541599300,0cyclictest0-21swapper/720:18:147
1785414993028,1cyclictest1881908-21apt-get22:08:166
178541499300,29cyclictest0-21swapper/620:00:016
1785408993027,2cyclictest1883948-21sh22:10:004
178540799300,29cyclictest1934133-21apt-get23:43:153
178540799300,29cyclictest1862401-21sh21:30:003
178540799300,29cyclictest0-21swapper/319:18:133
178540799300,29cyclictest0-21swapper/319:18:133
178540799300,1cyclictest1938865-21latency_hist23:50:023
178540399300,29cyclictest0-21swapper/223:33:162
178540399300,29cyclictest0-21swapper/219:55:012
1785415992927,1cyclictest1963389-21apt00:35:027
178541599290,29cyclictest1789283-21apt-get19:18:147
178541599290,29cyclictest1789283-21apt-get19:18:147
178541599290,29cyclictest0-21swapper/719:23:147
178541599290,28cyclictest0-21swapper/723:43:147
178541599290,1cyclictest0-21swapper/723:50:017
178541599290,0cyclictest0-21swapper/700:08:187
1785414992927,1cyclictest1873176-21sh21:50:016
1785414992927,1cyclictest1833159-21apt-get20:38:166
1785414992926,2cyclictest0-21swapper/621:53:146
1785414992922,2cyclictest369-21systemd-journal19:45:026
178541499290,28cyclictest1849589-21http21:08:156
178541499290,28cyclictest0-21swapper/623:53:156
178541499290,28cyclictest0-21swapper/623:53:146
178541499290,28cyclictest0-21swapper/600:03:156
178541499290,1cyclictest1800316-21apt-get19:38:136
1785413992927,1cyclictest1953259-21apt-get00:18:175
178541399290,29cyclictest1826879-21idleruntime-cro20:25:015
1785408992927,1cyclictest0-21swapper/420:25:024
178540899290,28cyclictest0-21swapper/422:33:134
178540899290,28cyclictest0-21swapper/420:30:014
178540899290,1cyclictest1-21systemd22:00:014
1785407992928,1cyclictest491rcuc/300:35:013
1785407992928,1cyclictest1912581-21apt-get23:03:153
1785407992927,1cyclictest0-21swapper/321:43:163
1785407992927,1cyclictest0-21swapper/320:35:013
178540799290,29cyclictest0-21swapper/323:25:023
178540799290,28cyclictest0-21swapper/323:58:163
178540799290,28cyclictest0-21swapper/323:58:153
178540799290,28cyclictest0-21swapper/323:20:023
178540799290,28cyclictest0-21swapper/321:15:023
178540799290,28cyclictest0-21swapper/319:23:153
178540799290,0cyclictest0-21swapper/320:18:153
178540399290,28cyclictest0-21swapper/222:38:182
178540399290,28cyclictest0-21swapper/221:13:162
1785401992927,1cyclictest0-21swapper/121:28:131
1785401992927,1cyclictest0-21swapper/100:15:021
178540199290,28cyclictest1849586-21apt-get21:08:151
178540199290,28cyclictest0-21swapper/121:18:161
178540199290,28cyclictest0-21swapper/120:55:021
178540199290,28cyclictest0-21swapper/120:48:141
178540199290,28cyclictest0-21swapper/100:40:021
178540199290,28cyclictest0-21swapper/100:15:021
178540199290,1cyclictest1923350-21apt-get23:23:151
178540199290,1cyclictest1814060-21apt-get20:03:171
178539799290,1cyclictest1794941-21apt-get19:28:150
178539799290,1cyclictest0-21swapper/022:13:150
1785415992828,0cyclictest0-21swapper/722:43:167
1785415992827,1cyclictest0-21swapper/723:55:027
1785415992827,1cyclictest0-21swapper/723:55:027
1785415992827,1cyclictest0-21swapper/723:03:167
1785415992827,1cyclictest0-21swapper/721:48:167
1785415992827,1cyclictest0-21swapper/721:43:167
1785415992827,1cyclictest0-21swapper/721:25:017
1785415992827,1cyclictest0-21swapper/720:35:027
1785415992826,1cyclictest0-21swapper/723:38:177
178541599280,28cyclictest0-21swapper/723:58:167
178541599280,28cyclictest0-21swapper/723:58:157
178541599280,28cyclictest0-21swapper/723:20:017
178541599280,28cyclictest0-21swapper/721:08:147
1785414992826,2cyclictest0-21swapper/621:25:016
1785414992823,4cyclictest0-21swapper/620:28:146
178541499280,28cyclictest0-21swapper/620:50:016
178541499280,0cyclictest0-21swapper/620:33:166
1785413992827,1cyclictest1955966-21apt-get00:23:155
1785413992827,1cyclictest1931428-21apt-get23:38:175
1785413992827,1cyclictest0-21swapper/523:58:155
1785413992827,1cyclictest0-21swapper/523:58:155
1785413992827,1cyclictest0-21swapper/522:40:005
1785413992827,1cyclictest0-21swapper/500:03:155
178541399280,27cyclictest0-21swapper/523:08:155
178541399280,27cyclictest0-21swapper/520:58:185
178541399280,0cyclictest0-21swapper/521:08:165
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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