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2026-01-01 - 10:05
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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 Jan 01, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190749910703253469,53498cyclictest9-21ksoftirqd/021:44:320
190749910680053460,53219cyclictest23411-21ssh23:58:310
190749910674853435,53313cyclictest0-21swapper21:24:460
190749910673753436,53211cyclictest9-21ksoftirqd/021:03:100
190749910659753401,53196cyclictest0-21swapper23:39:150
190749910658353474,53109cyclictest0-21swapper22:31:560
190749910654453400,53144cyclictest0-21swapper23:45:070
190749910653453381,53088cyclictest0-21swapper00:34:310
190749910652053382,53073cyclictest14981-21kworker/0:120:28:200
190749910651453476,53038cyclictest0-21swapper21:57:360
190749910648553401,52995cyclictest3950irq/9-acpi21:17:540
190749910646553428,53037cyclictest0-21swapper23:28:420
190749910643153436,52995cyclictest0-21swapper22:37:570
190749910642253387,53035cyclictest0-21swapper19:33:440
190749910641853430,52988cyclictest0-21swapper21:33:590
190749910641253459,52953cyclictest0-21swapper19:22:410
190749910639053468,52859cyclictest9-21ksoftirqd/020:13:460
190749910637353440,52933cyclictest0-21swapper19:35:050
190749910621553479,52736cyclictest0-21swapper20:15:260
190749910618853461,52727cyclictest0-21swapper19:19:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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