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2025-11-13 - 06:50
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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 100 highest latencies:
System rack6slot6 (updated Thu Nov 13, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227429910697153413,53465cyclictest265572sleep022:09:510
227429910676653449,53221cyclictest2103-21runrttasks20:45:470
227429910662753400,53138cyclictest9-21ksoftirqd/021:22:470
227429910661553461,53154cyclictest0-21swapper21:45:040
227429910656553467,53098cyclictest0-21swapper23:24:420
227429910646853454,53014cyclictest0-21swapper00:00:130
227429910646853448,53020cyclictest0-21swapper21:36:310
227429910646553448,53017cyclictest0-21swapper22:56:440
227429910645253445,53007cyclictest0-21swapper23:53:510
227429910643853439,52999cyclictest0-21swapper22:47:220
227429910642853392,53036cyclictest0-21swapper21:58:270
227429910641453431,52983cyclictest0-21swapper21:27:490
227429910641353448,52965cyclictest0-21swapper19:32:560
227429910640953419,52990cyclictest0-21swapper21:50:250
227429910631953414,52840cyclictest0-21swapper20:02:140
227429910630053396,52840cyclictest9-21ksoftirqd/019:20:420
227429910623353432,52801cyclictest0-21swapper22:39:290
227429910620253471,52731cyclictest0-21swapper20:14:280
227429910619153458,52733cyclictest0-21swapper20:50:380
227429910618753464,52723cyclictest0-21swapper23:36:560
227429910618453413,52771cyclictest0-21swapper19:42:080
227429910614253444,52698cyclictest0-21swapper22:13:420
227429910516953044,52124cyclictest0-21swapper23:47:390
227429910515653060,52094cyclictest0-21swapper23:14:090
22742995371724,53693cyclictest0-21swapper21:34:000
22742995368853417,208cyclictest3950irq/9-acpi22:43:200
22742995361953443,176cyclictest0-21swapper20:16:480
22742995361053434,176cyclictest0-21swapper21:00:110
22742995357553425,150cyclictest0-21swapper20:58:500
22742995355953407,152cyclictest0-21swapper00:31:220
22742995351553335,180cyclictest0-21swapper23:42:480
22742995344129,0cyclictest32248-21ssh22:16:530
22742995338131,53284cyclictest9-21ksoftirqd/019:52:210
22742995314725,53030cyclictest0-21swapper23:08:480
22742995291326,52765cyclictest0-21swapper21:43:230
22742995274227,52715cyclictest0-21swapper20:32:430
227429924921096,1271cyclictest17350-21ssh23:26:230
227429922881065,1125cyclictest133750irq/9-eth022:53:130
227429921721091,952cyclictest18859-21runrttasks19:56:520
227429921321075,930cyclictest2103-21runrttasks21:19:060
227429921071013,1054cyclictest1266-21munin-node00:35:130
227429920621004,1024cyclictest0-21swapper23:55:110
227429920571001,1021cyclictest0-21swapper20:43:560
227429920521023,1009cyclictest0-21swapper20:36:440
227429920231041,946cyclictest20892-21ssh22:00:380
227429920141031,863cyclictest0-21swapper23:17:100
227429919961023,852cyclictest0-21swapper20:25:510
22742991977931,1032cyclictest0-21swapper22:33:580
227429919751018,922cyclictest0-21swapper00:10:460
22742991940935,970cyclictest0-21swapper23:02:460
227429919191101,818cyclictest0-21swapper21:14:450
227429919031038,769cyclictest0-21swapper20:23:500
227429918971034,773cyclictest0-21swapper19:36:370
22742991867961,868cyclictest13744-21ssh00:06:140
227429918171084,733cyclictest0-21swapper00:19:180
227429918001091,586cyclictest25670-21ssh00:23:390
227429916971072,527cyclictest19345-21ssh23:30:140
227429916731017,656cyclictest0-21swapper22:27:260
227429916501045,605cyclictest0-21swapper21:05:520
227429916491049,507cyclictest10558-21kworker/0:020:06:250
22742991615954,641cyclictest3950irq/9-acpi22:24:350
227429916141054,467cyclictest9-21ksoftirqd/019:19:010
227429915701017,459cyclictest9-21ksoftirqd/019:48:000
227429915001006,402cyclictest133750irq/9-eth000:28:510
227429914891007,418cyclictest0-21swapper19:29:550
2274299878622,253cyclictest25145-21hwlatdetect-tra19:12:300
1576126111,10sleep016057-21hwlatdetect-tra19:07:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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