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2025-11-22 - 21:29
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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 Nov 22, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193379910718853473,53593cyclictest2103-21runrttasks11:27:540
193379910712553387,53643cyclictest22052-21ssh09:33:520
193379910695353473,53416cyclictest133750irq/9-eth012:15:380
193379910669853397,53301cyclictest0-21swapper12:37:550
193379910660253457,53081cyclictest5350irq/9-uhci_hcd:09:15:560
193379910655953391,53103cyclictest0-21swapper09:23:390
193379910646453407,53057cyclictest0-21swapper11:06:380
193379910646353409,53054cyclictest0-21swapper11:13:300
193379910646053438,53022cyclictest0-21swapper12:33:130
193379910644353399,53044cyclictest0-21swapper07:25:550
193379910630553475,52830cyclictest0-21swapper07:38:180
193379910624053138,53091cyclictest4058-21ssh09:53:170
193379910622353461,52762cyclictest0-21swapper08:14:090
193379910621053469,52741cyclictest0-21swapper10:44:520
193379910620253468,52734cyclictest0-21swapper08:48:280
193379910617353458,52715cyclictest0-21swapper08:24:520
193379910616353402,52761cyclictest0-21swapper07:18:530
193379910616253403,52759cyclictest0-21swapper08:51:090
193379910615653436,52720cyclictest0-21swapper07:11:210
193379910614353433,52710cyclictest0-21swapper07:33:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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