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2026-06-28 - 12:44
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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 Sun Jun 28, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239511521170,2sleep20-21swapper/221:30:032
259448221140,2sleep30-21swapper/323:45:033
264715921040,1sleep10-21swapper/100:20:041
24443032930,2sleep20-21swapper/222:05:022
24690942660,1sleep12469097-21cut22:20:041
2216003993317,10cyclictest2405661-21cstates21:39:580
26542622320,1sleep30-21swapper/300:25:033
2216003993119,7cyclictest0-21swapper/021:45:010
26767272300,2sleep20-21swapper/200:40:012
2216003992924,4cyclictest2645530-21apt-key00:20:010
2216003992923,5cyclictest660-21dbus-daemon23:55:010
2216003992916,8cyclictest0-21swapper/023:50:020
2216003992915,9cyclictest2361962-21ps21:10:000
221600399288,14cyclictest0-21swapper/023:04:550
221600399288,14cyclictest0-21swapper/023:04:550
2216004992721,2cyclictest67250irq/126-eno100:20:011
221600399269,12cyclictest0-21swapper/023:55:100
221600399269,12cyclictest0-21swapper/022:34:590
221600399268,13cyclictest0-21swapper/021:34:590
2216003992619,5cyclictest2436481-21ps22:00:030
2216003992611,11cyclictest2562572-21tail23:24:550
221600399258,12cyclictest0-21swapper/021:20:010
221600399257,13cyclictest0-21swapper/019:44:560
221600399256,2cyclictest0-21swapper/021:28:210
221600399254,3cyclictest0-21swapper/022:44:550
2216003992519,5cyclictest765-1atopacctd23:30:030
2216003992519,5cyclictest2653201-21sort00:25:020
2216003992519,5cyclictest1-21systemd23:40:030
2216003992510,11cyclictest2286711-21tail20:09:550
2216003992510,10cyclictest0-21swapper/022:09:560
221600399250,21cyclictest2552596-21ssh23:15:050
2216004992421,2cyclictest2232535-21systemd-run19:25:011
2216004992420,3cyclictest2269084-21apt19:55:001
221600499240,23cyclictest2376419-21tail21:20:001
221600399248,9cyclictest0-21swapper/022:20:040
221600399248,12cyclictest0-21swapper/021:15:020
221600399247,2cyclictest0-21swapper/000:05:020
2216003992417,6cyclictest2518566-21if_enp1s022:55:010
2216003992415,8cyclictest2593299-21ls23:45:010
2216004992320,2cyclictest2676047-21wc00:40:011
2216004992318,2cyclictest1247-21mta-sts-daemon22:30:021
221600399239,9cyclictest0-21swapper/023:30:180
221600399239,4cyclictest2216001-21cyclictest22:19:580
221600399238,5cyclictest2348765-21tail20:59:560
221600399237,4cyclictest808-21hwrng21:47:170
221600399235,2cyclictest0-21swapper/022:59:560
2216003992316,5cyclictest2507932-21mailstats22:45:080
2216003992310,2cyclictest491rcuog/200:11:340
2216005992219,1cyclictest0-21swapper/223:00:002
2216005992219,1cyclictest0-21swapper/219:15:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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