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2026-05-14 - 13:16
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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 Thu May 14, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
295629910711553384,53635cyclictest29920-21diskmemload23:41:260
295629910707353400,53551cyclictest29920-21diskmemload21:59:370
295629910690953451,53370cyclictest3950irq/9-acpi22:13:210
295629910688353472,53370cyclictest0-21swapper00:23:380
295629910668353425,53167cyclictest0-21swapper19:41:470
295629910667053483,53096cyclictest0-21swapper23:58:310
295629910662553456,53080cyclictest9-21ksoftirqd/020:22:490
295629910661353282,53308cyclictest13905-21ssh23:52:190
295629910660853413,53195cyclictest0-21swapper20:14:060
295629910653553476,53059cyclictest0-21swapper22:48:110
295629910651153476,53035cyclictest0-21swapper19:36:560
295629910650153471,53030cyclictest0-21swapper22:55:330
295629910644053397,53043cyclictest0-21swapper21:03:210
295629910643553395,53040cyclictest0-21swapper23:05:460
295629910643353392,53041cyclictest0-21swapper23:37:050
295629910637653477,52835cyclictest9-21ksoftirqd/022:05:390
295629910637553477,52834cyclictest9-21ksoftirqd/021:33:490
295629910637353411,52871cyclictest0-21swapper19:30:340
295629910637353410,52871cyclictest0-21swapper20:19:180
295629910623353478,52755cyclictest0-21swapper20:52:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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