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2026-09-24 - 19:12
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Thu Sep 24, 2026 13:02:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3981199216209,3cyclictest3546-21CPU33
3981199212205,5cyclictest0-21swapper/3910:39:4033
3981199212205,5cyclictest0-21swapper/3910:39:4033
3981199210204,4cyclictest0-21swapper/3911:01:3133
3981199210204,4cyclictest0-21swapper/3911:01:3133
3981199210204,4cyclictest0-21swapper/3911:01:3133
3981199208203,4cyclictest0-21swapper/3907:15:5533
3981199208198,8cyclictest1367-21dbus-daemon10:32:1733
3981199208198,8cyclictest1367-21dbus-daemon10:32:1733
3981199205197,5cyclictest0-21swapper/3911:10:4633
3981199205197,5cyclictest0-21swapper/3911:10:4533
3981199205197,5cyclictest0-21swapper/3911:10:4533
397849920212,176cyclictest4953-21timerwakeupswit07:11:269
397849920212,176cyclictest4953-21timerwakeupswit07:11:269
3977499202193,6cyclictest0-21swapper/812:12:4038
3977499202193,6cyclictest0-21swapper/812:12:3938
3981199201196,4cyclictest0-21swapper/3911:06:2233
3981199201196,4cyclictest0-21swapper/3911:06:2233
3981199201196,4cyclictest0-21swapper/3911:06:2233
3981199199194,3cyclictest30467-21sshd10:15:5833
3981199199194,3cyclictest30467-21sshd10:15:5833
3981199199194,3cyclictest30467-21sshd10:15:5833
3981199198193,4cyclictest0-21swapper/3910:59:2533
3981199198193,4cyclictest0-21swapper/3910:59:2533
3981199198193,4cyclictest0-21swapper/3910:59:2433
3981199197188,6cyclictest0-21swapper/3908:00:1533
3981199197188,6cyclictest0-21swapper/3908:00:1533
397819919746,26cyclictest0-21swapper/1412:35:176
397819919746,26cyclictest0-21swapper/1412:35:166
3979999194189,3cyclictest1-21systemd09:30:1821
3979999194189,3cyclictest1-21systemd09:30:1721
3977699194187,5cyclictest0-21swapper/912:29:1539
3977699194187,5cyclictest0-21swapper/912:29:1539
3980399193183,8cyclictest0-21swapper/3211:35:2026
3980399193183,8cyclictest0-21swapper/3211:35:2026
3979699193181,10cyclictest0-21swapper/2709:42:0120
3979699193181,10cyclictest0-21swapper/2709:42:0120
3977699193188,3cyclictest142050irq/42-eno1-TxRx-012:23:0039
3977699193188,3cyclictest142050irq/42-eno1-TxRx-012:22:5939
3977699193188,3cyclictest142050irq/42-eno1-TxRx-012:22:5939
3981199192169,15cyclictest0-21swapper/3910:40:1433
3981199192169,15cyclictest0-21swapper/3910:40:1333
3980199192135,44cyclictest0-21swapper/3011:26:5024
3980199192135,44cyclictest0-21swapper/3011:26:5024
3980199192135,44cyclictest0-21swapper/3011:26:5024
3977799192129,53cyclictest0-21swapper/1010:13:172
3977799192129,53cyclictest0-21swapper/1010:13:172
3977799192129,53cyclictest0-21swapper/1010:13:172
3981199191186,3cyclictest0-21swapper/3908:35:2333
3981199191186,3cyclictest0-21swapper/3908:35:2333
3981199191182,8cyclictest0-21swapper/3909:18:2833
3981199191182,8cyclictest0-21swapper/3909:18:2833
3981199190178,10cyclictest0-21swapper/3910:26:1833
3981199190178,10cyclictest0-21swapper/3910:26:1833
3981199190174,12cyclictest0-21swapper/3910:50:1333
3981199190174,12cyclictest0-21swapper/3910:50:1233
3981199190174,12cyclictest0-21swapper/3910:50:1233
3981199189178,9cyclictest0-21swapper/3909:00:0133
3981199189178,9cyclictest0-21swapper/3909:00:0133
397889918980,91cyclictest1363-21avahi-daemon09:47:4513
397889918980,91cyclictest1363-21avahi-daemon09:47:4513
397889918980,91cyclictest1363-21avahi-daemon09:47:4513
3977699189183,3cyclictest0-21swapper/908:42:5339
3977699189183,3cyclictest0-21swapper/908:42:5339
3977699189180,4cyclictest0-21swapper/909:24:2239
3977699189180,4cyclictest0-21swapper/909:24:2239
3977499188180,6cyclictest0-21swapper/809:22:1338
3977499188180,6cyclictest0-21swapper/809:22:1338
3976599188178,8cyclictest755-21systemd-journal12:35:000
3976599188178,8cyclictest755-21systemd-journal12:35:000
3981199187176,9cyclictest5239-21cstates08:10:1433
3981199187176,9cyclictest5239-21cstates08:10:1433
3981199187167,12cyclictest0-21swapper/3908:28:5733
3981199187165,19cyclictest0-21swapper/3909:20:5933
3981199187165,19cyclictest0-21swapper/3909:20:5933
3977699187178,7cyclictest0-21swapper/908:21:3239
3977699187167,18cyclictest0-21swapper/909:26:0039
3977699187167,18cyclictest0-21swapper/909:26:0039
3977499187180,5cyclictest0-21swapper/812:16:2838
3977499187180,5cyclictest0-21swapper/812:16:2738
3981199186176,8cyclictest0-21swapper/3910:06:2133
3981199186176,8cyclictest0-21swapper/3910:06:2133
3981199186171,12cyclictest0-21swapper/3908:45:1133
3981199186171,12cyclictest0-21swapper/3908:45:1033
3977499186167,12cyclictest0-21swapper/809:12:1238
3977499186167,12cyclictest0-21swapper/809:12:1138
3977499186167,12cyclictest0-21swapper/809:12:1138
3981199185176,7cyclictest0-21swapper/3909:00:5633
3981199185176,7cyclictest0-21swapper/3909:00:5633
3980299185178,2cyclictest0-21swapper/3109:35:1925
3980299185178,2cyclictest0-21swapper/3109:35:1825
3981199184169,8cyclictest0-21swapper/3910:22:2133
3981199184169,8cyclictest0-21swapper/3910:22:2133
3981199184169,8cyclictest0-21swapper/3910:22:2033
3981199184163,15cyclictest0-21swapper/3908:40:2133
3981199184163,15cyclictest0-21swapper/3908:40:2133
3980399184178,4cyclictest0-21swapper/3211:41:0226
3980399184178,4cyclictest0-21swapper/3211:41:0226
3977699184173,9cyclictest0-21swapper/907:43:2739
3977699184173,9cyclictest0-21swapper/907:43:2639
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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