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2026-03-28 - 17:44
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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 Sat Mar 28, 2026 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80459910701653402,53521cyclictest0-21swapper11:52:480
80459910699153424,53504cyclictest3950irq/9-acpi11:30:520
80459910697053424,53455cyclictest0-21swapper10:47:390
80459910687153472,53277cyclictest2272-21munin-node08:27:090
80459910685853342,53516cyclictest0-21swapper10:56:220
80459910681953436,53383cyclictest9-21ksoftirqd/011:05:540
80459910670853386,53257cyclictest9-21ksoftirqd/011:49:070
80459910669153472,53219cyclictest0-21swapper10:37:560
80459910667053432,53238cyclictest0-21swapper10:04:470
80459910666153445,53193cyclictest13082-21ssh10:26:430
80459910657253469,53039cyclictest9-21ksoftirqd/007:29:220
80459910656453383,53088cyclictest0-21swapper10:18:110
80459910650653429,53077cyclictest0-21swapper08:18:060
80459910648353400,53019cyclictest9-21ksoftirqd/009:57:350
80459910647653455,53021cyclictest0-21swapper10:50:100
80459910646453454,53010cyclictest0-21swapper09:34:180
80459910646353410,53053cyclictest0-21swapper11:42:050
80459910646253408,53054cyclictest0-21swapper09:19:440
80459910645153404,53047cyclictest0-21swapper09:27:460
80459910644453399,53045cyclictest0-21swapper07:53:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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