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2025-11-23 - 08:21
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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 Sun Nov 23, 2025 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1132299210775105307,105466cyclictest0-21swapper21:57:060
1132299209815105329,104484cyclictest0-21swapper22:40:580
113229910666653444,53222cyclictest0-21swapper19:52:000
113229910657553475,53100cyclictest0-21swapper22:59:040
113229910656153385,53085cyclictest0-21swapper19:43:170
113229910654653402,53144cyclictest0-21swapper19:56:110
113229910650153426,53075cyclictest0-21swapper00:00:210
113229910648753434,53053cyclictest0-21swapper20:56:380
113229910647953455,53024cyclictest0-21swapper23:37:150
113229910646853473,52931cyclictest9-21ksoftirqd/000:32:200
113229910646553451,53014cyclictest0-21swapper20:43:340
113229910645053464,52986cyclictest0-21swapper23:48:480
113229910644753403,53044cyclictest0-21swapper23:08:560
113229910643953398,53041cyclictest0-21swapper19:15:290
113229910643753428,53009cyclictest0-21swapper20:46:550
113229910643453436,52998cyclictest0-21swapper21:52:240
113229910642153389,53032cyclictest0-21swapper20:30:510
113229910641853427,52991cyclictest0-21swapper22:25:040
113229910640353421,52982cyclictest0-21swapper23:34:040
113229910630453473,52831cyclictest0-21swapper20:04:430
113229910630353466,52837cyclictest0-21swapper19:30:330
113229910628853415,52809cyclictest9-21ksoftirqd/021:41:510
113229910625053383,52802cyclictest0-21swapper20:54:580
113229910623353476,52757cyclictest0-21swapper19:46:580
113229910622553476,52749cyclictest0-21swapper20:17:570
113229910622053473,52747cyclictest0-21swapper22:36:570
113229910621253469,52743cyclictest0-21swapper19:20:510
113229910620253465,52737cyclictest0-21swapper19:28:030
113229910619153463,52728cyclictest0-21swapper20:38:030
113229910618553460,52725cyclictest0-21swapper20:21:480
113229910617453455,52719cyclictest0-21swapper00:35:110
113229910616353404,52759cyclictest0-21swapper21:04:200
113229910615453400,52754cyclictest0-21swapper22:12:500
113229910615453398,52756cyclictest0-21swapper20:05:440
113229910603252943,53087cyclictest0-21swapper22:24:440
113229910601752985,53030cyclictest0-21swapper22:19:020
113229910599952993,53004cyclictest17198-1kworker/u3:021:38:500
113229910592752972,52952cyclictest2296-21munin-node22:00:270
113229910587652938,52932cyclictest7805-21sh22:08:190
113229910516453050,52112cyclictest0-21swapper00:08:340
113229910515153060,52090cyclictest0-21swapper21:11:330
113229910515152980,52168cyclictest5683-21sh22:49:110
113229910512553026,52097cyclictest0-21swapper00:14:150
113229910511653011,52103cyclictest0-21swapper21:22:060
113229910509553000,52094cyclictest0-21swapper19:37:460
113229910508052971,52107cyclictest0-21swapper23:42:260
113229910507052986,52082cyclictest0-21swapper21:48:030
113229910506952953,52114cyclictest0-21swapper23:00:540
113229910503652931,52103cyclictest0-21swapper22:53:420
113229910501652912,52102cyclictest0-21swapper00:18:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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