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2025-11-17 - 10:36
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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 Mon Nov 17, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97339910729253387,53784cyclictest1744-21hald22:52:430
97339910703253410,53528cyclictest0-21swapper23:33:340
97339910691553393,53522cyclictest0-21swapper22:11:010
97339910657253465,53107cyclictest0-21swapper19:57:420
97339910656353460,53103cyclictest0-21swapper20:32:320
97339910651253473,53039cyclictest0-21swapper20:22:390
97339910650053411,53089cyclictest0-21swapper22:34:270
97339910648653465,53021cyclictest0-21swapper23:41:270
97339910646653455,53011cyclictest0-21swapper20:09:560
97339910645953372,53022cyclictest3950irq/9-acpi22:56:240
97339910644853397,53051cyclictest0-21swapper00:30:510
97339910644453437,53007cyclictest0-21swapper23:53:500
97339910643853397,53041cyclictest0-21swapper21:48:240
97339910643053432,52998cyclictest0-21swapper19:47:390
97339910642753461,52966cyclictest0-21swapper19:41:070
97339910638653404,52982cyclictest0-21swapper21:01:000
97339910634253477,52804cyclictest0-21swapper20:42:450
97339910625653380,52811cyclictest9-21ksoftirqd/021:56:360
97339910621153473,52738cyclictest0-21swapper21:16:450
97339910621153467,52744cyclictest0-21swapper19:52:110
97339910620553469,52736cyclictest0-21swapper21:07:320
97339910618253414,52768cyclictest0-21swapper19:34:350
97339910617353453,52720cyclictest0-21swapper19:28:440
97339910617153450,52721cyclictest0-21swapper20:51:180
97339910616653450,52716cyclictest0-21swapper21:11:130
97339910612953427,52702cyclictest0-21swapper19:38:170
97339910513353051,52081cyclictest0-21swapper20:14:370
97339910513053046,52082cyclictest0-21swapper22:05:590
97339910504252951,52089cyclictest0-21swapper23:37:150
9733995385553391,464cyclictest0-21swapper20:39:040
9733995381953381,438cyclictest0-21swapper23:21:510
9733995374625,0cyclictest11-21rcu_preempt23:25:420
9733995356953420,149cyclictest0-21swapper20:04:140
9733995297525,52857cyclictest0-21swapper22:02:380
9733995276825,52743cyclictest0-21swapper20:26:200
97339956723161,2474cyclictest2739-21devkit-power-da00:09:050
97339923571061,1170cyclictest10358-21ssh21:30:390
97339923061089,1144cyclictest3950irq/9-acpi22:47:210
97339922361100,1013cyclictest26859-21diskmemload00:16:070
97339922181091,1000cyclictest26859-21diskmemload00:12:050
97339921611077,994cyclictest12409-1kworker/u3:121:36:100
97339921351095,947cyclictest133750irq/9-eth021:20:460
97339921131057,930cyclictest2103-21runrttasks19:23:120
97339920941085,916cyclictest9-21ksoftirqd/019:14:200
97339920921034,1024cyclictest0-21swapper20:57:190
97339920841033,1016cyclictest0-21swapper22:43:000
97339920471010,1037cyclictest0-21swapper23:02:250
9733992026984,1007cyclictest0-21swapper23:46:580
97339920231016,884cyclictest2103-21runrttasks21:41:020
97339920151038,941cyclictest26859-21diskmemload22:20:230
97339919951043,863cyclictest3950irq/9-acpi00:01:220
97339918371064,706cyclictest133750irq/9-eth020:18:480
9733991827945,849cyclictest3950irq/9-acpi00:37:430
97339918101062,655cyclictest3950irq/9-acpi21:28:580
97339917481004,653cyclictest9723-21cyclictest23:59:220
97339917151004,619cyclictest133750irq/9-eth023:12:480
9733991713994,699cyclictest5350irq/9-uhci_hcd:00:28:300
97339917041078,626cyclictest0-21swapper22:17:320
97339916841064,620cyclictest0-21swapper21:54:460
9733991615953,645cyclictest17793-21ssh22:26:350
9733991608781,818cyclictest0-21swapper20:45:560
9733991571747,821cyclictest0-21swapper23:15:290
97339915691002,529cyclictest3944-21ssh00:24:290
97339914631095,368cyclictest0-21swapper19:17:200
97339914501089,361cyclictest0-21swapper22:38:490
97339914331083,350cyclictest0-21swapper23:07:370
8782256166,207sleep00-21swapper19:05:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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