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2026-07-23 - 12:11
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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 Jul 23, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139559910669353456,53173cyclictest9-21ksoftirqd/023:31:470
139559910664653423,53223cyclictest405-21ssh21:50:380
139559910660553458,53056cyclictest0-21swapper20:53:520
139559910660453400,53141cyclictest3950irq/9-acpi23:04:490
139559910655453392,53071cyclictest0-21swapper22:27:590
139559910654553385,53095cyclictest0-21swapper21:49:580
139559910653553474,53061cyclictest0-21swapper21:32:230
139559910648253450,53032cyclictest0-21swapper22:42:030
139559910646953325,53129cyclictest14019-21ssh23:47:020
139559910627653416,52772cyclictest0-21swapper20:32:150
139559910625453412,52751cyclictest0-21swapper20:22:030
139559910624953406,52751cyclictest0-21swapper23:40:500
139559910624453400,52844cyclictest0-21swapper23:19:440
139559910621253469,52743cyclictest0-21swapper20:42:590
139559910619053461,52729cyclictest0-21swapper23:52:530
139559910618153413,52768cyclictest0-21swapper22:48:250
139559910616453400,52764cyclictest0-21swapper20:36:070
139559910615253438,52714cyclictest0-21swapper19:52:440
139559910611553419,52696cyclictest0-21swapper20:10:090
139559910582653055,52768cyclictest27158-21ssh22:30:300
139559910576752921,52844cyclictest18350-21ssh23:06:200
139559910529953021,52275cyclictest15598-21ssh21:25:410
139559910521253043,52163cyclictest16207-21ssh00:39:170
139559910507752970,52105cyclictest0-21swapper00:01:060
139559910506852970,52096cyclictest0-21swapper21:22:000
139559910504052946,52092cyclictest0-21swapper00:27:530
13955995316626,0cyclictest0-21swapper21:43:560
13955995306126,53035cyclictest0-21swapper23:38:490
139559925941090,1378cyclictest16446-21ssh22:14:550
139559924731092,1255cyclictest22922-21ssh21:36:340
139559924591082,1250cyclictest8482-21ssh22:02:420
139559922951089,1105cyclictest5356-21rm21:10:570
139559922081043,1144cyclictest0-21swapper00:21:320
139559921761039,1037cyclictest8881-21ssh21:16:080
139559921201048,979cyclictest134850irq/9-eth022:39:320
139559921161074,953cyclictest3950irq/9-acpi22:52:360
139559920701024,1010cyclictest11647-21ssh00:31:540
139559920551012,1005cyclictest20535-21ssh23:56:140
139559920251067,834cyclictest27762-21ssh00:06:570
139559919591046,820cyclictest0-21swapper19:59:360
139559918701060,810cyclictest0-21swapper20:48:500
139559918451012,796cyclictest12415-21ssh22:58:280
139559918421063,654cyclictest32039-21rm23:26:060
139559918211094,663cyclictest3950irq/9-acpi00:10:580
139559917321066,601cyclictest9-21ksoftirqd/022:21:470
139559917271086,641cyclictest0-21swapper19:29:270
13955991704941,738cyclictest12585-21ssh22:09:030
139559916961035,661cyclictest0-21swapper19:41:510
139559916541043,547cyclictest134850irq/9-eth000:15:500
139559916541014,602cyclictest28019-21ssh23:20:240
139559916521043,544cyclictest3950irq/9-acpi20:26:240
139559916321094,445cyclictest11-21rcu_preempt22:17:460
139559916021129,407cyclictest3950irq/9-acpi21:05:250
139559915891081,415cyclictest0-21swapper21:00:540
139559915371013,431cyclictest0-21swapper19:39:500
139559915291011,425cyclictest0-21swapper20:03:570
139559915211017,437cyclictest0-21swapper20:59:030
139559914981009,424cyclictest0-21swapper19:45:420
139559914971009,421cyclictest0-21swapper20:15:310
139559914891004,418cyclictest0-21swapper20:06:280
139559914641095,369cyclictest0-21swapper21:57:200
139559914601098,362cyclictest0-21swapper19:10:020
139559914531087,366cyclictest0-21swapper19:32:580
139559914411083,358cyclictest0-21swapper19:22:350
139559914001049,311cyclictest0-21swapper23:13:320
13955991128605,519cyclictest5609-21hwlatdetect-tra19:18:440
3068322350,1sleep030678-21hwlatdetect-tra19:07:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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