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2026-04-16 - 17:54
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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 Apr 16, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235579910688553431,53390cyclictest3950irq/9-acpi09:50:270
235579910664453462,53118cyclictest9-21ksoftirqd/009:17:580
235579910659453460,53044cyclictest9-21ksoftirqd/008:18:000
235579910656253394,53103cyclictest0-21swapper12:06:260
235579910655553481,53074cyclictest0-21swapper10:44:430
235579910653853475,53063cyclictest0-21swapper09:23:490
235579910651853429,53089cyclictest0-21swapper07:33:070
235579910650653475,53031cyclictest0-21swapper12:02:450
235579910650553477,53028cyclictest0-21swapper09:10:150
235579910648953405,53084cyclictest0-21swapper07:56:140
235579910647353456,53017cyclictest0-21swapper09:33:020
235579910645653454,53002cyclictest0-21swapper12:24:410
235579910644253398,53044cyclictest0-21swapper11:01:070
235579910643753396,53041cyclictest0-21swapper11:24:340
235579910643553438,52997cyclictest0-21swapper10:49:540
235579910642753391,53036cyclictest0-21swapper10:32:490
235579910642453389,53035cyclictest0-21swapper09:59:300
235579910641253383,53029cyclictest0-21swapper10:36:100
235579910634153447,52894cyclictest0-21swapper10:03:510
235579910628353390,52802cyclictest0-21swapper07:24:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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