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2026-07-05 - 04:02
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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 20 highest latencies:
System rackeslot2.osadl.org (updated Sun Jul 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30836282750,1sleep03083626-21ssh00:31:580
28538972680,1sleep12853896-21ssh21:55:311
28084112310,4sleep02808414-21grep21:24:520
2638705992717,6cyclictest2994297-21munin-run23:30:020
2638706992517,3cyclictest0-21swapper/123:30:011
2638705992522,2cyclictest1-21systemd20:03:560
2638705992413,6cyclictest0-21swapper/023:00:010
2638706992319,2cyclictest1020-21runrttasks19:59:441
2638705992314,5cyclictest2907187-21acpi22:34:430
492398220,3rtkit-daemon2895653-21tr22:24:510
2638707992220,1cyclictest0-21swapper/223:30:022
2638707992219,1cyclictest0-21swapper/221:55:002
492398210,2rtkit-daemon1237-21mta-sts-daemon22:47:210
2638706992118,2cyclictest2905342-21vmstat22:30:011
2638706992111,3cyclictest0-21swapper/121:20:021
263870599210,5cyclictest3010711-21/usr/sbin/munin23:44:490
492398200,3rtkit-daemon1246-21mta-sts-daemon19:43:271
2638707992017,1cyclictest0-21swapper/222:20:002
2638707992015,3cyclictest0-21swapper/221:25:012
2638706992016,2cyclictest2979309-21sh23:20:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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