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2026-06-12 - 22:41
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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 50 highest latencies:
System rackeslot2.osadl.org (updated Fri Jun 12, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286252421580,2sleep30-21swapper/310:15:033
281694921540,2sleep30-21swapper/309:42:323
274351721150,2sleep30-21swapper/308:50:263
30481512400,1sleep03048155-21sed12:20:250
3153791341,14phc2sys0-21swapper/309:20:013
2617209992919,5cyclictest0-21swapper/012:40:010
2617209992714,6cyclictest0-21swapper/010:15:280
2617209992514,6cyclictest2904426-21phc2sys-jitter10:40:290
2617209992510,6cyclictest0-21swapper/011:10:030
261720999249,5cyclictest0-21swapper/010:30:160
2617209992421,2cyclictest2773390-21systemd09:15:010
2617209992414,5cyclictest2921851-21cpuspeed_turbos10:55:220
2617209992412,2cyclictest2892170-21apt-get10:35:190
2617210992320,2cyclictest2716964-21cron08:30:001
261720999238,6cyclictest0-21swapper/012:00:010
261720999232,16cyclictest0-21swapper/007:20:320
2617209992312,5cyclictest2991932-21kthreadcore11:40:270
2617213992219,1cyclictest0-21swapper/210:45:012
2617210992219,2cyclictest2987632-21cut11:40:011
2617210992216,2cyclictest17750irq/132-ahci[0000:00:17.0]09:15:011
2617210992212,6cyclictest1237-21mta-sts-daemon11:41:241
2617209992213,8cyclictest2826085-21cstates09:50:230
2617209992210,5cyclictest2911834-21/usr/sbin/munin10:45:300
27718272210,2sleep20-21swapper/209:10:332
26224872210,2sleep20-21swapper/207:10:312
2617210992118,2cyclictest660-21dbus-daemon10:15:011
261720999219,5cyclictest0-21swapper/009:40:270
261720999213,9cyclictest0-21swapper/009:23:320
2617209992118,2cyclictest660-21dbus-daemon09:30:010
2617209992118,2cyclictest2624159-21cstates07:15:030
261720999211,15cyclictest0-21swapper/012:28:550
3153791201,2phc2sys0-21swapper/309:54:563
2617213992017,1cyclictest0-21swapper/210:50:012
261721099205,9cyclictest2735636-21aten2.4-expect08:45:201
2617210992017,2cyclictest0-21swapper/108:40:001
2617210992014,2cyclictest492398rtkit-daemon09:26:531
2617210992013,2cyclictest67250irq/126-eno112:25:261
2617210992011,4cyclictest2943869-21aten2.4-expect11:10:201
2617210992011,4cyclictest2680371-21sshd07:58:331
2617210992011,3cyclictest2747358-21sshd08:54:321
2617209992017,2cyclictest2847276-21idleruntime-cro10:05:000
2617209992011,3cyclictest2801203-21awk09:30:310
2617213991916,1cyclictest0-21swapper/211:35:022
2617213991916,1cyclictest0-21swapper/209:30:312
261721099197,6cyclictest4922-21rtkit-daemon07:45:231
261721099196,8cyclictest2880280-21kthreadcore10:25:261
2617210991916,2cyclictest781-21gmain09:45:021
2617210991916,2cyclictest2623382-21gpgv07:15:011
2617210991916,2cyclictest0-21swapper/109:20:281
2617210991912,3cyclictest2952679-21kthreadcore11:15:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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