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2026-09-23 - 05:54
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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 Wed Sep 23, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
257889910665553462,53129cyclictest9-21ksoftirqd/021:47:330
257889910657353459,53051cyclictest3950irq/9-acpi23:16:190
257889910652353394,53129cyclictest0-21swapper22:30:050
257889910650553430,53075cyclictest0-21swapper21:40:410
257889910650253468,53034cyclictest0-21swapper19:26:330
257889910649853469,53029cyclictest0-21swapper21:01:500
257889910647253401,52978cyclictest0-21swapper20:13:460
257889910646853396,53072cyclictest0-21swapper23:41:460
257889910643253443,52989cyclictest0-21swapper00:14:250
257889910641153429,52982cyclictest0-21swapper19:46:480
257889910639453462,52868cyclictest9-21ksoftirqd/020:40:040
257889910631853477,52841cyclictest0-21swapper00:05:330
257889910622953438,52791cyclictest0-21swapper20:32:320
257889910619853466,52732cyclictest0-21swapper19:44:480
257889910619353422,52771cyclictest0-21swapper20:06:140
257889910618853398,52752cyclictest0-21swapper20:20:080
257889910617653447,52729cyclictest0-21swapper20:01:430
257889910616253445,52717cyclictest0-21swapper20:26:000
257889910615853401,52757cyclictest0-21swapper19:21:510
257889910613653435,52701cyclictest0-21swapper20:38:130
257889910612253423,52699cyclictest0-21swapper00:27:190
257889910542353170,52253cyclictest0-21swapper21:25:570
257889910518453076,52106cyclictest0-21swapper19:51:200
257889910518052925,52252cyclictest22884-21ssh22:09:090
257889910515053022,52126cyclictest0-21swapper00:21:070
257889910507552964,52109cyclictest0-21swapper21:11:430
25788995347926,0cyclictest0-21swapper21:08:020
25788995333126,53210cyclictest0-21swapper22:04:080
25788995314229,53113cyclictest0-21swapper22:18:520
25788995294628,0cyclictest0-21swapper23:54:200
257889948712744,2115cyclictest2679-21devkit-power-da23:57:310
257889925111061,1324cyclictest31551-21ssh23:47:080
257889924911062,1305cyclictest24654-21rm23:38:150
257889923971063,1235cyclictest2099-21runrttasks22:24:440
257889923091053,1188cyclictest21322sleep020:48:160
257889922661087,1089cyclictest25784-21cyclictest22:47:400
257889922451014,1108cyclictest0-21swapper20:59:190
257889922141062,1086cyclictest5350irq/9-uhci_hcd:23:05:460
257889921121018,1057cyclictest2099-21runrttasks23:00:440
25788992062994,1017cyclictest0-21swapper00:35:420
257889920041037,844cyclictest18003-21ssh21:19:250
257889919621095,743cyclictest2272-21munin-node19:39:160
25788991932929,965cyclictest2099-21runrttasks23:31:530
257889919301092,714cyclictest2790-21gnome-settings-21:36:000
257889919291024,867cyclictest2099-21runrttasks21:56:260
25788991923932,957cyclictest0-21swapper00:02:020
25788991914922,955cyclictest24249-21ssh22:54:520
257889917531037,652cyclictest9-21ksoftirqd/019:15:590
25788991741963,753cyclictest26671-21ssh22:57:230
257889917271030,604cyclictest9-21ksoftirqd/023:12:380
257889916561022,568cyclictest134850irq/9-eth022:39:380
257889916441067,577cyclictest0-21swapper20:17:570
257889916271042,585cyclictest0-21swapper19:59:220
257889916121087,460cyclictest0-21swapper21:53:550
25788991605889,691cyclictest15337-21taskset22:41:490
257889915811088,428cyclictest129762sleep023:22:200
257889915231007,516cyclictest0-21swapper20:51:570
257889915141102,412cyclictest0-21swapper22:25:340
257889914991008,424cyclictest0-21swapper19:31:340
257889914441096,348cyclictest0-21swapper00:15:060
257889914411088,353cyclictest0-21swapper00:33:110
257889914291024,405cyclictest0-21swapper22:10:400
257889914201033,387cyclictest0-21swapper23:25:110
257889914171017,400cyclictest0-21swapper19:13:590
257889914131089,324cyclictest0-21swapper21:22:460
257889913921063,329cyclictest0-21swapper21:33:290
24877254822,240sleep00-21swapper19:05:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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