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2026-04-26 - 19:31
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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 Sun Apr 26, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156009910693753406,53442cyclictest3950irq/9-acpi11:20:110
156009910672353455,53177cyclictest9-21ksoftirqd/011:47:590
156009910658453461,53123cyclictest0-21swapper09:50:050
156009910657553475,53100cyclictest0-21swapper07:43:190
156009910657053433,53072cyclictest0-21swapper07:50:410
156009910655553390,53073cyclictest0-21swapper12:31:320
156009910654453384,53070cyclictest0-21swapper11:13:590
156009910653853412,53033cyclictest0-21swapper09:29:590
156009910651453478,53036cyclictest0-21swapper12:02:530
156009910651053397,53113cyclictest0-21swapper08:45:470
156009910650353400,53103cyclictest0-21swapper09:10:140
156009910648653388,53006cyclictest9-21ksoftirqd/007:33:560
156009910646953457,53012cyclictest0-21swapper09:41:430
156009910645653450,53006cyclictest0-21swapper10:18:430
156009910644753474,52973cyclictest0-21swapper11:55:010
156009910644553439,53006cyclictest0-21swapper12:12:160
156009910641753425,52992cyclictest0-21swapper11:44:280
156009910640053479,52830cyclictest0-21swapper07:23:430
156009910632153462,52824cyclictest0-21swapper11:37:360
156009910623453395,52839cyclictest0-21swapper08:08:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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