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2026-04-16 - 02:22
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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 Thu Apr 16, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29659910712253411,53614cyclictest18225-21ssh22:34:120
29659910696953456,53447cyclictest318282sleep020:06:500
29659910669253471,53221cyclictest0-21swapper21:21:010
29659910657453459,53115cyclictest0-21swapper21:38:260
29659910657153457,53114cyclictest0-21swapper21:11:180
29659910655253454,53098cyclictest0-21swapper00:01:570
29659910654753428,53053cyclictest0-21swapper20:21:040
29659910654753386,53095cyclictest0-21swapper22:37:330
29659910651153429,53082cyclictest0-21swapper22:10:450
29659910650353428,52985cyclictest0-21swapper20:13:010
29659910648953436,53053cyclictest0-21swapper00:07:390
29659910645953448,53011cyclictest0-21swapper00:11:300
29659910644953472,52977cyclictest0-21swapper20:34:280
29659910644853446,53002cyclictest0-21swapper22:44:350
29659910644153396,53045cyclictest0-21swapper22:09:050
29659910640953426,52983cyclictest0-21swapper22:20:080
29659910640253421,52981cyclictest0-21swapper20:38:290
29659910639353439,52865cyclictest7892-21kworker/0:221:32:540
29659910635353389,52899cyclictest0-21swapper19:17:250
29659910630153473,52828cyclictest0-21swapper20:25:550
29659910629353406,52822cyclictest0-21swapper21:07:470
29659910626853451,52817cyclictest0-21swapper21:00:450
29659910626753422,52781cyclictest3950irq/9-acpi00:20:330
29659910625853466,52792cyclictest0-21swapper19:24:480
29659910625353385,52803cyclictest0-21swapper19:27:080
29659910621953429,52790cyclictest0-21swapper19:53:060
29659910617453450,52724cyclictest0-21swapper19:34:500
29659910617053466,52704cyclictest0-21swapper00:31:360
29659910616853406,52762cyclictest0-21swapper00:29:350
29659910615753401,52756cyclictest0-21swapper22:47:260
29659910612553426,52699cyclictest0-21swapper21:42:370
29659910610553019,53081cyclictest0-21swapper23:01:100
29659910604952978,53069cyclictest0-21swapper21:29:030
29659910604453001,53038cyclictest0-21swapper22:03:530
29659910589053029,52854cyclictest13304-21sh22:26:000
29659910515652978,52176cyclictest25245-21ssh21:56:310
29659910515253047,52103cyclictest0-21swapper22:15:070
29659910513453027,52105cyclictest0-21swapper00:38:380
29659910502952935,52092cyclictest0-21swapper23:08:420
2965995388930,53761cyclictest31897-21ssh22:54:080
2965995362326,53597cyclictest0-21swapper23:27:380
2965995361324,53495cyclictest0-21swapper23:33:090
2965995317228,0cyclictest0-21swapper23:47:230
29659925421083,1335cyclictest21402-21ssh21:50:400
29659923351092,1118cyclictest27421-21vmstat19:55:260
29659923101096,1114cyclictest2099-21runrttasks19:35:100
29659920421063,881cyclictest3261-21gnome-power-man20:59:250
29659919851032,859cyclictest0-21swapper19:45:130
29659919671025,849cyclictest0-21swapper23:11:330
2965991957948,985cyclictest10811-21ssh23:57:060
29659919481088,738cyclictest24963-21diskmemload23:21:360
2965991944944,975cyclictest24387-21ssh00:17:120
29659919181070,750cyclictest957-21ssh23:43:120
29659919141058,764cyclictest0-21swapper20:40:490
29659919071039,776cyclictest0-21swapper23:54:150
29659919001032,775cyclictest0-21swapper19:40:320
29659918841053,703cyclictest3261-21gnome-power-man23:18:150
29659918701038,741cyclictest9-21ksoftirqd/023:36:500
29659918461088,664cyclictest0-21swapper20:15:020
2965991768931,800cyclictest29702-21ssh21:15:390
29659917371010,690cyclictest1657-21ssh22:56:280
29659917101034,676cyclictest0-21swapper21:49:590
29659916121068,481cyclictest9-21ksoftirqd/020:49:220
29659915391042,433cyclictest9-21ksoftirqd/020:00:380
29659915161032,421cyclictest9-21ksoftirqd/020:53:530
2965991234614,617cyclictest9485-21hwlatdetect-tra19:10:330
1364222400,1sleep010162-21hwlatdetect-tra19:08:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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