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2026-04-02 - 13:47
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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 376 highest latencies:
System rack6slot6 (updated Thu Apr 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237919910700953387,53501cyclictest22741-21diskmemload00:16:540
237919910665753477,53089cyclictest17545-21kworker/u2:022:36:560
237919910662753482,53145cyclictest0-21swapper20:47:540
237919910660753475,53069cyclictest134850irq/9-eth021:14:120
237919910653953444,53095cyclictest0-21swapper21:05:590
237919910652453395,53129cyclictest0-21swapper22:01:450
237919910650553470,53035cyclictest0-21swapper23:58:390
237919910649153406,53085cyclictest0-21swapper22:20:510
237919910646753472,52995cyclictest0-21swapper21:48:120
237919910646453451,53013cyclictest0-21swapper21:51:120
237919910646453450,53014cyclictest0-21swapper23:25:500
237919910645353403,53050cyclictest0-21swapper22:59:320
237919910645053400,53050cyclictest0-21swapper22:43:380
237919910644753443,53004cyclictest0-21swapper23:06:340
237919910643453454,52980cyclictest0-21swapper21:55:440
237919910642553392,53033cyclictest0-21swapper00:29:580
237919910641553431,52984cyclictest0-21swapper23:15:470
237919910640253454,52948cyclictest0-21swapper22:54:010
237919910639453417,52977cyclictest0-21swapper23:36:330
237919910633353422,52820cyclictest9-21ksoftirqd/020:24:270
237919910630453475,52829cyclictest0-21swapper20:36:310
237919910629853394,52812cyclictest0-21swapper19:58:200
237919910629653419,52813cyclictest9-21ksoftirqd/020:26:380
237919910629253417,52811cyclictest9-21ksoftirqd/022:47:490
237919910629253395,52897cyclictest0-21swapper20:31:090
237919910626653391,52809cyclictest0-21swapper21:44:100
237919910626253388,52808cyclictest0-21swapper19:25:410
237919910623753478,52759cyclictest0-21swapper23:33:420
237919910621653474,52742cyclictest0-21swapper20:14:350
237919910620353468,52735cyclictest0-21swapper23:01:330
237919910618053454,52726cyclictest0-21swapper19:44:160
237919910617753457,52720cyclictest0-21swapper20:05:020
237919910617553450,52725cyclictest0-21swapper21:34:480
237919910617253469,52703cyclictest0-21swapper20:57:170
237919910615653441,52715cyclictest0-21swapper19:36:540
237919910614853396,52752cyclictest0-21swapper19:31:320
237919910613953391,52748cyclictest0-21swapper20:03:310
237919910613253427,52705cyclictest0-21swapper20:50:350
237919910556653065,52498cyclictest29757-21ssh22:06:570
237919910515253049,52101cyclictest0-21swapper21:15:220
237919910508752979,52106cyclictest0-21swapper00:00:100
23791995376925,238cyclictest609-21ssh22:11:480
23791995338227,0cyclictest0-21swapper21:27:360
23791995326425,0cyclictest0-21swapper23:20:080
237919925461040,1377cyclictest15545-21ssh00:09:420
237919925261070,1357cyclictest12586-21munin-node22:30:140
237919924051028,1286cyclictest23783-21cyclictest21:00:180
237919922581056,1075cyclictest2099-21runrttasks19:52:180
237919922541029,1132cyclictest5650-21kworker/0:021:35:180
237919921421014,1090cyclictest23817-21runrttasks00:20:350
237919920471006,949cyclictest3950irq/9-acpi22:26:120
237919920251023,878cyclictest22741-21diskmemload00:14:540
237919919911035,863cyclictest0-21swapper23:42:450
237919919841023,927cyclictest0-21swapper20:19:560
237919919791047,838cyclictest3950irq/9-acpi00:33:090
23791991944936,973cyclictest0-21swapper23:46:050
237919919391069,774cyclictest0-21swapper23:54:580
23791991921942,965cyclictest0-21swapper00:35:300
237919918971092,714cyclictest9-21ksoftirqd/021:24:450
237919918791022,764cyclictest0-21swapper19:48:570
23791991682985,660cyclictest4325-21ssh22:17:100
23791991543737,803cyclictest0-21swapper23:11:050
237919914991087,412cyclictest0-21swapper19:22:300
237919914721099,373cyclictest0-21swapper20:42:020
23791991233615,614cyclictest28177-21grep19:19:290
23791991145568,573cyclictest10712-21hwlatdetect-tra19:11:260
2314826112,40sleep02002-21hwlatdetect-tra19:08:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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