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2026-03-22 - 06:00
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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 Sun Mar 22, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11019910676353378,53291cyclictest0-21swapper21:28:000
11019910663453464,53108cyclictest9-21ksoftirqd/022:04:110
11019910658853444,53079cyclictest0-21swapper19:30:570
11019910650953474,53035cyclictest0-21swapper23:51:420
11019910645853408,53050cyclictest0-21swapper21:02:130
11019910645453450,53004cyclictest0-21swapper22:48:440
11019910644753401,53046cyclictest0-21swapper00:06:360
11019910627953401,52759cyclictest0-21swapper23:25:040
11019910624953479,52770cyclictest0-21swapper20:15:290
11019910622553473,52752cyclictest0-21swapper21:16:370
11019910622253414,52773cyclictest0-21swapper19:56:540
11019910619053474,52716cyclictest0-21swapper22:11:130
11019910614853397,52751cyclictest0-21swapper23:47:100
11019910614553435,52710cyclictest0-21swapper20:02:460
11019910613753430,52707cyclictest0-21swapper23:08:290
11019910613753391,52746cyclictest0-21swapper20:26:430
11019910613453435,52699cyclictest0-21swapper21:35:420
11019910564752957,52688cyclictest891-21ssh22:38:410
11019910502652917,52107cyclictest0-21swapper00:10:570
1101995359624,53452cyclictest0-21swapper20:45:080
1101995348717,0cyclictest0-21swapper22:27:070
1101995347826,53354cyclictest3792-21munin-node23:30:260
1101995316224,53138cyclictest0-21swapper00:35:340
1101995313225,53107cyclictest0-21swapper22:54:050
110199530729,53061cyclictest0-21swapper21:57:590
11019941572413,1741cyclictest1741-21hald00:29:330
11019925331077,1331cyclictest30893-21ssh21:47:560
11019925021096,1281cyclictest9-21ksoftirqd/020:21:410
11019924081065,1244cyclictest2099-21runrttasks20:12:280
11019923771078,1232cyclictest3950irq/9-acpi21:43:450
11019923721014,1234cyclictest2169-21ssh21:53:280
11019922291094,1040cyclictest3950irq/9-acpi22:59:470
11019922141007,1183cyclictest2099-21runrttasks19:37:080
11019922011097,1038cyclictest3950irq/9-acpi23:35:570
11019921871092,1002cyclictest16661-1kworker/u3:000:16:390
11019921651032,1008cyclictest28570-21ssh23:19:020
11019921491099,950cyclictest14386-21ssh00:31:130
11019921031029,1034cyclictest31475-21ssh23:22:530
1101992030987,1009cyclictest0-21swapper23:56:530
1101992022997,988cyclictest1907-21snmpd19:44:200
11019920131031,862cyclictest0-21swapper20:51:400
11019919971030,841cyclictest29695-21ssh22:33:090
11019919551034,829cyclictest0-21swapper19:46:310
11019919421047,859cyclictest18872-21ssh22:17:040
11019919401040,807cyclictest0-21swapper20:05:470
11019919291020,852cyclictest2099-21runrttasks23:03:380
11019918851028,764cyclictest0-21swapper20:36:550
11019918811021,824cyclictest19503-21ssh21:30:310
11019918561035,755cyclictest3950irq/9-acpi21:07:540
11019918491077,649cyclictest4569-21ssh21:10:050
11019918121058,661cyclictest0-21swapper23:43:590
11019917751097,678cyclictest0-21swapper21:21:280
11019916811094,587cyclictest0-21swapper20:58:520
11019916761017,624cyclictest23941-21ssh23:11:300
11019916711091,580cyclictest0-21swapper22:20:350
11019916441033,611cyclictest0-21swapper19:50:220
11019916231088,442cyclictest0-21swapper22:44:320
11019916211088,470cyclictest1094-21cyclictest00:21:300
1101991615990,589cyclictest24433-21ssh00:00:040
11019915061012,428cyclictest0-21swapper20:34:250
11019914441090,354cyclictest0-21swapper20:44:380
11019914411087,354cyclictest0-21swapper19:27:150
11019914311083,348cyclictest0-21swapper22:05:410
11019914171075,342cyclictest0-21swapper19:24:250
1101991173622,548cyclictest23743-21hwlatdetect-tra19:16:220
1101991037552,482cyclictest1341-21hwlatdetect-tra19:14:420
110199635627,6cyclictest1005-21latency_hist19:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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