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2026-01-07 - 09:37
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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 Wed Jan 07, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230669910729353486,53709cyclictest14583-21ssh23:09:550
230669910677953403,53310cyclictest3950irq/9-acpi22:56:110
230669910671953394,53325cyclictest0-21swapper00:05:510
230669910663753440,53197cyclictest0-21swapper22:42:370
230669910658953452,53137cyclictest0-21swapper19:24:400
230669910654853388,53070cyclictest0-21swapper19:18:390
230669910654153410,53040cyclictest0-21swapper19:26:310
230669910653153472,53059cyclictest0-21swapper00:39:410
230669910651853478,53040cyclictest0-21swapper20:41:430
230669910648053459,53021cyclictest0-21swapper20:24:180
230669910643753398,53039cyclictest0-21swapper21:26:150
230669910643553438,52997cyclictest0-21swapper21:19:030
230669910641153425,52986cyclictest0-21swapper00:17:550
230669910639453415,52979cyclictest0-21swapper21:42:000
230669910631353478,52835cyclictest0-21swapper23:01:530
230669910630853472,52773cyclictest3950irq/9-acpi22:51:100
230669910622253301,52898cyclictest15482-21ssh22:22:420
230669910622153456,52729cyclictest0-21swapper19:43:260
230669910621253472,52740cyclictest0-21swapper19:58:300
230669910620353467,52736cyclictest0-21swapper19:37:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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