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2026-08-01 - 06:15
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Sat Aug 01, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281759910725853477,53658cyclictest24374-21ssh00:34:300
281759910709153407,53588cyclictest2099-21runrttasks19:42:260
281759910676953465,53240cyclictest9-21ksoftirqd/021:51:130
281759910672853476,53252cyclictest0-21swapper21:40:000
281759910672153380,53252cyclictest14716-21kworker/0:223:45:560
281759910666853467,53112cyclictest9-21ksoftirqd/019:29:420
281759910665353474,53113cyclictest0-21swapper21:26:160
281759910665353474,53088cyclictest0-21swapper19:52:080
281759910662453415,53164cyclictest10946-21munin-node00:15:240
281759910650253394,53108cyclictest0-21swapper19:20:590
281759910648453463,53021cyclictest0-21swapper21:06:200
281759910647453434,52977cyclictest28171-21cyclictest21:47:020
281759910644453401,53043cyclictest0-21swapper20:14:050
281759910642953450,52979cyclictest0-21swapper20:15:150
281759910640053476,52924cyclictest0-21swapper00:39:010
281759910638053414,52875cyclictest0-21swapper23:37:230
281759910636653439,52927cyclictest0-21swapper20:34:410
281759910621853475,52743cyclictest0-21swapper22:44:480
281759910621653411,52805cyclictest0-21swapper19:19:590
281759910617753436,52703cyclictest0-21swapper20:57:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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