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2026-04-05 - 05:24
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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 05, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185609910756653422,54053cyclictest19082sleep019:46:010
185609910675653464,53202cyclictest9-21ksoftirqd/023:42:490
185609910664353422,53130cyclictest0-21swapper19:58:540
185609910658753422,53073cyclictest0-21swapper20:42:170
185609910656053408,53152cyclictest0-21swapper20:12:380
185609910653553383,53062cyclictest0-21swapper20:20:510
185609910650353429,53074cyclictest0-21swapper19:11:410
185609910650353406,53001cyclictest14957-21ssh00:31:530
185609910649653470,53026cyclictest0-21swapper22:14:340
185609910649153409,53082cyclictest0-21swapper20:39:560
185609910645253402,53050cyclictest0-21swapper00:03:150
185609910645053399,52988cyclictest3950irq/9-acpi22:21:560
185609910644953398,53051cyclictest0-21swapper00:27:520
185609910643453464,52907cyclictest9-21ksoftirqd/020:31:040
185609910622653481,52745cyclictest0-21swapper21:08:450
185609910619753402,52759cyclictest0-21swapper19:24:550
185609910617953456,52723cyclictest0-21swapper20:03:160
185609910615953447,52712cyclictest0-21swapper23:58:230
185609910615953433,52726cyclictest0-21swapper20:25:320
185609910614853441,52707cyclictest0-21swapper23:34:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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