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2026-04-17 - 11:15
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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 Fri Apr 17, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327329910697853436,53450cyclictest0-21swapper22:28:450
327329910678953440,53285cyclictest134850irq/9-eth021:46:330
327329910674953413,53244cyclictest0-21swapper19:29:440
327329910658553402,53183cyclictest0-21swapper00:20:480
327329910654953451,53098cyclictest0-21swapper23:50:090
327329910654053443,53097cyclictest0-21swapper20:53:080
327329910650153469,53032cyclictest0-21swapper22:07:590
327329910646453456,53008cyclictest0-21swapper19:51:300
327329910645853407,53051cyclictest0-21swapper22:14:210
327329910645753407,53050cyclictest0-21swapper22:49:410
327329910645453459,52995cyclictest0-21swapper19:32:550
327329910644453399,53045cyclictest0-21swapper21:59:170
327329910643453394,53040cyclictest0-21swapper22:23:240
327329910642353433,52990cyclictest0-21swapper21:06:220
327329910637053435,52843cyclictest0-21swapper00:06:340
327329910629953414,52819cyclictest0-21swapper19:56:010
327329910628253406,52813cyclictest9-21ksoftirqd/021:26:580
327329910628253405,52811cyclictest0-21swapper20:26:400
327329910621353469,52744cyclictest0-21swapper19:41:470
327329910618153452,52729cyclictest0-21swapper20:12:460
327329910617753451,52726cyclictest0-21swapper20:58:490
327329910616653446,52720cyclictest0-21swapper20:15:470
327329910615953441,52718cyclictest0-21swapper22:52:020
327329910615753401,52756cyclictest0-21swapper20:46:360
327329910615553436,52719cyclictest0-21swapper19:23:320
327329910612953432,52697cyclictest0-21swapper19:37:160
327329910612553425,52700cyclictest0-21swapper23:37:350
327329910607353347,52703cyclictest22005-21kworker/0:423:09:570
327329910522052891,52327cyclictest30117-21ssh00:25:590
327329910516353053,52108cyclictest0-21swapper22:35:570
327329910508852998,52088cyclictest0-21swapper23:12:180
327329910501552901,52112cyclictest0-21swapper21:53:250
32732995391912,53907cyclictest0-21swapper23:28:430
32732995384753385,462cyclictest0-21swapper20:41:450
32732995371013,312cyclictest0-21swapper21:43:020
32732995360853457,151cyclictest0-21swapper21:02:300
32732995357553424,151cyclictest0-21swapper19:46:590
32732995356026,53411cyclictest0-21swapper21:36:300
32732995348425,53459cyclictest0-21swapper23:20:100
32732995339913,53292cyclictest0-21swapper20:02:330
32732995321125,53151cyclictest0-21swapper20:34:320
32732995307526,53049cyclictest0-21swapper23:45:170
32732995301625,52899cyclictest0-21swapper21:19:150
327329924491096,1227cyclictest1907-21snmpd21:11:130
327329923211093,1134cyclictest134850irq/9-eth021:30:390
327329922201088,1065cyclictest5350irq/9-uhci_hcd:21:24:470
327329920861027,1022cyclictest0-21swapper20:20:380
327329920091027,862cyclictest0-21swapper22:17:020
327329919991044,917cyclictest24987-21ssh23:30:330
327329919881024,929cyclictest0-21swapper00:13:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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