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2026-05-05 - 16:45
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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 Tue May 05, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278769910688553413,53381cyclictest0-21swapper07:36:000
278769910688453432,53387cyclictest134850irq/9-eth012:23:020
278769910676453383,53291cyclictest0-21swapper11:32:480
278769910676253400,53240cyclictest10188-21ssh11:04:200
278769910671353390,53258cyclictest0-21swapper10:36:320
278769910660753476,53131cyclictest0-21swapper08:48:200
278769910655653393,53098cyclictest0-21swapper08:45:000
278769910654253384,53093cyclictest0-21swapper12:11:290
278769910654053384,53091cyclictest0-21swapper11:46:520
278769910646753395,52982cyclictest10-21rcuc/011:13:420
278769910646653455,53011cyclictest0-21swapper10:09:140
278769910645153430,53021cyclictest0-21swapper08:54:420
278769910644753430,53017cyclictest0-21swapper11:24:050
278769910644653447,52999cyclictest0-21swapper07:44:120
278769910643853441,52997cyclictest0-21swapper12:17:010
278769910638753471,52852cyclictest9-21ksoftirqd/008:55:530
278769910634753395,52952cyclictest0-21swapper08:03:380
278769910617753409,52768cyclictest0-21swapper07:46:230
278769910615853401,52757cyclictest0-21swapper09:02:040
278769910612453426,52698cyclictest0-21swapper07:58:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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