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2025-07-15 - 03:31
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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 Jul 15, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28939910710453471,53540cyclictest133750irq/9-eth000:03:560
28939910697653429,53454cyclictest0-21swapper00:19:200
28939910689453451,53345cyclictest6505-21ssh23:48:310
28939910658753467,53120cyclictest0-21swapper21:01:330
28939910657353464,53109cyclictest0-21swapper21:19:380
28939910655753386,53079cyclictest9-21ksoftirqd/020:08:380
28939910651353474,53039cyclictest0-21swapper19:14:220
28939910650353412,53091cyclictest0-21swapper23:54:130
28939910647453455,53019cyclictest0-21swapper22:40:320
28939910646453452,53012cyclictest0-21swapper19:20:140
28939910646153407,53054cyclictest0-21swapper00:28:330
28939910644153399,53042cyclictest0-21swapper23:07:490
28939910643953437,53002cyclictest0-21swapper23:56:540
28939910637253479,52830cyclictest3950irq/9-acpi19:36:390
28939910625953453,52806cyclictest0-21swapper20:44:080
28939910622853417,52773cyclictest0-21swapper20:32:250
28939910621353471,52742cyclictest0-21swapper22:51:050
28939910620653454,52752cyclictest0-21swapper22:24:170
28939910619753423,52774cyclictest0-21swapper20:26:130
28939910618353414,52769cyclictest0-21swapper20:46:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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