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2026-04-12 - 22:22
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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 12, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308419910673953475,53166cyclictest11733-21ssh12:16:000
308419910673953472,53203cyclictest9-21ksoftirqd/008:00:060
308419910661753439,53178cyclictest0-21swapper12:01:250
308419910661453424,53190cyclictest0-21swapper11:33:270
308419910661353472,53077cyclictest9-21ksoftirqd/010:06:020
308419910661053387,53159cyclictest9-21ksoftirqd/009:32:120
308419910652053405,53115cyclictest0-21swapper07:51:230
308419910651953472,53047cyclictest0-21swapper09:16:380
308419910650053428,53072cyclictest9-21ksoftirqd/009:59:300
308419910648553416,53069cyclictest0-21swapper08:17:510
308419910647753395,53020cyclictest3950irq/9-acpi10:33:100
308419910647153459,53012cyclictest0-21swapper07:59:560
308419910645953408,53051cyclictest0-21swapper12:10:480
308419910645653445,53011cyclictest0-21swapper10:35:510
308419910644453448,52996cyclictest0-21swapper07:47:520
308419910644053447,52993cyclictest0-21swapper12:35:450
308419910642553391,53034cyclictest0-21swapper10:04:220
308419910642153387,53034cyclictest0-21swapper11:29:160
308419910640653426,52980cyclictest0-21swapper11:38:390
308419910638053421,52959cyclictest0-21swapper09:53:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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