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2025-05-03 - 02:10
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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 Fri May 02, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162809910739753467,53808cyclictest13489-21ssh12:22:480
162809910706153437,53501cyclictest9-21ksoftirqd/008:02:430
162809910703653445,53468cyclictest18156-21ssh10:16:020
162809910703653407,53539cyclictest133750irq/9-eth010:14:010
162809910692453465,53459cyclictest0-21swapper09:27:480
162809910683253471,53265cyclictest2114-21munin-node09:08:120
162809910669953455,53244cyclictest0-21swapper08:10:360
162809910661953429,53126cyclictest9-21ksoftirqd/011:31:440
162809910660453413,53191cyclictest0-21swapper10:01:380
162809910658153398,53183cyclictest0-21swapper12:32:310
162809910656853472,53096cyclictest0-21swapper12:17:370
162809910651153419,53092cyclictest0-21swapper09:49:540
162809910650753417,52999cyclictest0-21swapper08:28:010
162809910650453474,53030cyclictest0-21swapper10:21:330
162809910648453479,53005cyclictest0-21swapper11:00:350
162809910647553446,53029cyclictest0-21swapper12:10:350
162809910647253413,53059cyclictest0-21swapper11:44:370
162809910641353423,52990cyclictest0-21swapper11:38:560
162809910640853458,52950cyclictest0-21swapper08:37:540
162809910637653441,52935cyclictest0-21swapper09:00:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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