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2026-06-19 - 18:06
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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 all highest latencies:
System rack6slot6 (updated Fri Jun 19, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311749910714153435,53642cyclictest31152-21cyclictest12:15:490
311749910692353450,53376cyclictest25814-21munin-node08:15:190
311749910686753414,53388cyclictest9-21ksoftirqd/009:57:590
311749910679453473,53321cyclictest0-21swapper12:25:010
311749910669753418,53188cyclictest0-21swapper08:48:590
311749910668453441,53243cyclictest0-21swapper11:22:130
311749910664353416,53227cyclictest0-21swapper11:28:150
311749910662753413,53214cyclictest0-21swapper07:33:270
311749910654053469,53071cyclictest0-21swapper09:51:270
311749910651653453,52972cyclictest0-21swapper12:07:260
311749910650453476,53028cyclictest0-21swapper10:56:560
311749910650053395,53105cyclictest0-21swapper07:46:410
311749910649053471,53019cyclictest0-21swapper09:38:430
311749910647353459,53014cyclictest0-21swapper10:26:270
311749910646053450,53010cyclictest0-21swapper08:55:110
311749910643553398,53037cyclictest0-21swapper11:57:330
311749910642253451,52971cyclictest0-21swapper07:21:540
311749910633053405,52925cyclictest0-21swapper07:27:360
311749910627853384,52803cyclictest0-21swapper10:02:200
311749910621753471,52746cyclictest0-21swapper08:12:080
311749910621353415,52798cyclictest0-21swapper09:03:330
311749910620953473,52736cyclictest0-21swapper07:43:100
311749910618253396,52750cyclictest0-21swapper07:54:030
311749910617853457,52721cyclictest0-21swapper08:39:160
311749910615953447,52712cyclictest0-21swapper09:08:150
311749910608853007,53079cyclictest0-21swapper10:46:330
311749910554552985,52558cyclictest25454-21ssh09:22:390
311749910537153095,52276cyclictest0-21swapper12:02:350
311749910521152921,52284cyclictest6491-21sh09:41:340
311749910504152946,52090cyclictest0-21swapper11:32:560
311749910503952937,52100cyclictest0-21swapper07:18:430
31174995352024,465cyclictest0-21swapper10:33:390
31174995324427,53123cyclictest0-21swapper09:47:160
31174995312632,53094cyclictest0-21swapper11:12:100
311749925431060,1356cyclictest2863-21ssh10:23:460
311749923641050,1218cyclictest9-21ksoftirqd/011:07:390
311749922571048,1082cyclictest16164-21diskmemload11:16:520
311749921971097,1005cyclictest134850irq/9-eth010:50:240
311749921371020,1079cyclictest16400-21sh10:43:020
31174992122947,1141cyclictest0-21swapper07:35:280
311749921061023,1049cyclictest31428-21ssh12:37:550
311749921031100,905cyclictest2099-21runrttasks10:36:400
311749920911034,1022cyclictest0-21swapper08:31:140
31174992035983,1015cyclictest20408-21ssh11:35:170
31174992027979,1010cyclictest16164-21diskmemload12:13:580
31174992012994,982cyclictest0-21swapper09:34:520
311749919961095,901cyclictest0-21swapper11:49:010
31174991991964,990cyclictest26010-21ssh11:43:490
31174991972908,1026cyclictest25977-21kworker/0:211:04:380
31174991916950,941cyclictest31169-21ssh10:17:350
311749919151014,777cyclictest2099-21runrttasks08:51:000
311749918971030,773cyclictest0-21swapper08:09:280
311749918691080,696cyclictest9-21ksoftirqd/009:25:090
311749918621049,719cyclictest0-21swapper12:30:530
311749918311054,654cyclictest20631-21ssh12:22:100
311749917371093,644cyclictest0-21swapper08:01:050
311749916881005,591cyclictest9-21ksoftirqd/008:25:020
311749916691005,627cyclictest27856-21ssh10:12:530
31174991637991,612cyclictest134850irq/9-eth010:05:210
311749916351062,573cyclictest0-21swapper07:59:250
31174991610973,602cyclictest32726-21ssh11:53:220
311749916031045,558cyclictest0-21swapper07:11:510
31174991579751,825cyclictest0-21swapper08:21:010
31174991546873,660cyclictest21988-21ssh09:17:370
31174991495930,544cyclictest134850irq/9-eth008:40:170
311749913651007,358cyclictest0-21swapper09:12:160
30390254881,208sleep00-21swapper07:06:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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