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2026-01-11 - 07:21
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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 highest latencies:
System rack6slot6 (updated Sun Jan 11, 2026 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2373799209880105400,104478cyclictest0-21swapper21:40:190
237379910693453397,53414cyclictest1397-21rm00:09:310
237379910685553424,53339cyclictest9-21ksoftirqd/020:20:460
237379910671953467,53252cyclictest0-21swapper23:08:040
237379910669753401,53232cyclictest5162-21kworker/0:223:28:200
237379910661253438,53174cyclictest0-21swapper23:40:330
237379910658853442,53146cyclictest0-21swapper23:39:430
237379910657253429,53143cyclictest0-21swapper22:32:240
237379910654153383,53067cyclictest0-21swapper20:35:200
237379910652053416,53039cyclictest0-21swapper21:08:290
237379910650253400,53102cyclictest0-21swapper22:55:000
237379910646553450,53015cyclictest0-21swapper19:40:440
237379910645753406,53051cyclictest0-21swapper21:46:400
237379910644953400,53049cyclictest0-21swapper19:58:090
237379910644153472,52969cyclictest0-21swapper21:53:120
237379910644053439,53001cyclictest0-21swapper19:35:530
237379910643553466,52969cyclictest0-21swapper23:18:170
237379910641353422,52991cyclictest0-21swapper21:21:430
237379910634653402,52879cyclictest134850irq/9-eth022:21:000
237379910632253449,52873cyclictest0-21swapper19:31:110
237379910631253449,52863cyclictest0-21swapper20:26:070
237379910630153396,52813cyclictest0-21swapper20:53:050
237379910626053389,52806cyclictest0-21swapper20:43:020
237379910624853408,52774cyclictest0-21swapper21:04:080
237379910623753397,52777cyclictest3950irq/9-acpi00:12:220
237379910623053476,52754cyclictest0-21swapper19:54:080
237379910622453474,52750cyclictest0-21swapper19:26:300
237379910620853467,52741cyclictest0-21swapper00:31:480
237379910620453474,52722cyclictest0-21swapper19:23:290
237379910620453434,52770cyclictest0-21swapper19:47:060
237379910620053421,52779cyclictest0-21swapper23:22:480
237379910619153463,52728cyclictest0-21swapper20:34:500
237379910616153402,52759cyclictest0-21swapper23:02:220
237379910612453298,52814cyclictest3950irq/9-acpi00:38:000
237379910612353429,52694cyclictest0-21swapper20:48:540
237379910609953379,52704cyclictest25718-21ssh21:34:570
237379910609753426,52671cyclictest0-21swapper20:57:260
237379910590853334,52574cyclictest0-21swapper20:16:240
237379910508352970,52111cyclictest0-21swapper21:13:210
23737995387153406,465cyclictest0-21swapper19:11:060
23737995376130,53641cyclictest9-21ksoftirqd/022:59:110
23737995356653390,176cyclictest0-21swapper23:52:170
23737995335353294,45cyclictest28375-21ssh21:38:180
23737995322026,0cyclictest0-21swapper20:11:430
23737995289125,52775cyclictest0-21swapper20:07:120
237379926991063,1482cyclictest8778-21diskmemload22:39:560
237379924531094,1233cyclictest28738-21ssh23:14:360
237379922951015,1153cyclictest21536-21ssh21:28:150
237379922911091,1073cyclictest14846-21ssh00:28:570
237379922721050,1222cyclictest27424-21kworker/u2:300:04:100
237379922251095,1006cyclictest2687-21gconfd-222:29:530
237379922021083,992cyclictest23329-21ssh22:18:290
237379921691081,991cyclictest15953-21ssh22:07:060
237379921421078,970cyclictest274492sleep019:17:570
237379920901033,1022cyclictest0-21swapper22:42:360
237379920791073,913cyclictest3950irq/9-acpi22:12:480
23737992051978,1036cyclictest19852-21sh23:48:450
23737992050930,1086cyclictest0-21swapper21:18:520
237379920301005,991cyclictest0-21swapper22:47:080
23737992022983,1004cyclictest0-21swapper23:57:480
237379919211043,785cyclictest0-21swapper22:02:150
237379919131058,762cyclictest311-21jbd2/dm-0-820:01:400
237379918571079,778cyclictest0-21swapper00:22:150
23737991836989,814cyclictest23732-21cyclictest21:55:530
23737991703880,807cyclictest6969-21ssh23:30:100
23737991623843,756cyclictest7121-21ssh00:16:540
23610274137,208sleep00-21swapper19:09:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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