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2025-12-24 - 09:26
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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 50 highest latencies:
System rack6slot6 (updated Wed Dec 24, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204569910732453408,53820cyclictest2099-21runrttasks00:10:360
204569910661753399,53123cyclictest31253-21munin-node19:30:250
204569910654653441,53105cyclictest0-21swapper21:50:450
204569910653953401,53138cyclictest0-21swapper00:39:540
204569910652853406,53028cyclictest0-21swapper22:49:120
204569910651653477,53039cyclictest0-21swapper21:42:330
204569910649953426,53073cyclictest0-21swapper21:27:590
204569910649753467,53030cyclictest0-21swapper22:32:270
204569910649653468,53028cyclictest0-21swapper20:10:570
204569910647253454,53018cyclictest0-21swapper23:45:080
204569910647253420,53052cyclictest0-21swapper21:33:100
204569910644153448,52993cyclictest0-21swapper22:52:230
204569910643653467,52969cyclictest0-21swapper19:58:230
204569910643653434,53002cyclictest0-21swapper00:07:050
204569910643253393,53039cyclictest0-21swapper22:18:130
204569910643053395,53035cyclictest0-21swapper22:05:100
204569910642253431,52991cyclictest0-21swapper23:53:210
204569910642053428,52992cyclictest0-21swapper23:37:360
204569910627853414,52864cyclictest0-21swapper20:57:200
204569910625253447,52805cyclictest0-21swapper19:45:390
204569910622253475,52747cyclictest0-21swapper23:08:280
204569910620553473,52732cyclictest0-21swapper20:37:040
204569910618453475,52709cyclictest0-21swapper20:02:040
204569910618153461,52720cyclictest0-21swapper19:27:340
204569910616553407,52758cyclictest0-21swapper20:45:070
204569910615553444,52711cyclictest0-21swapper19:53:520
204569910614853397,52751cyclictest0-21swapper20:33:230
204569910600353065,52936cyclictest28911-21ssh22:28:360
204569910543653174,52262cyclictest0-21swapper23:12:590
20456995370525,53584cyclictest0-21swapper21:13:150
20456995358953439,86cyclictest2622-21ssh22:36:590
20456995351426,438cyclictest0-21swapper21:24:380
20456995347625,407cyclictest0-21swapper20:52:190
20456995339638,0cyclictest0-21swapper21:04:320
20456995320725,53182cyclictest0-21swapper00:20:290
20456995310626,53080cyclictest0-21swapper21:46:240
2045699530358,10cyclictest12232-21ssh00:26:100
204569924331090,1219cyclictest11762-21ssh22:03:090
204569924141098,1191cyclictest2099-21runrttasks19:40:080
204569923361030,1179cyclictest7994-21ssh23:33:050
204569923321017,1221cyclictest3950irq/9-acpi23:16:300
204569923151088,1152cyclictest3950irq/9-acpi21:56:570
204569923031011,1165cyclictest16062-21ssh22:56:440
204569922771046,1231cyclictest20000-21rm23:02:560
204569922711011,1134cyclictest14251-21ssh23:41:570
204569920931035,967cyclictest2332-21kworker/0:222:40:100
204569920811031,926cyclictest2790-21gnome-settings-21:06:530
204569920801031,925cyclictest26311-21ssh21:36:110
204569920031008,958cyclictest14524-21ssh21:19:570
204569919781016,841cyclictest0-21swapper20:06:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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