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2026-08-07 - 07:05
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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 792 highest latencies:
System rack6slot6 (updated Fri Aug 07, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43889910754753459,54088cyclictest0-21swapper19:31:320
43889910731753412,53809cyclictest2118-21ssh23:51:070
43889910695453419,53443cyclictest0-21swapper21:57:140
43889910667953422,53166cyclictest0-21swapper19:24:400
43889910659953412,53122cyclictest9-21ksoftirqd/023:18:080
43889910656953398,53105cyclictest0-21swapper00:15:440
43889910656553442,53123cyclictest0-21swapper23:21:290
43889910655153452,53099cyclictest0-21swapper22:41:170
43889910654953403,53146cyclictest0-21swapper21:25:050
43889910652853396,53132cyclictest0-21swapper22:59:420
43889910652753467,53060cyclictest0-21swapper21:37:390
43889910650553443,53062cyclictest0-21swapper20:41:120
43889910650053474,53026cyclictest0-21swapper21:14:420
43889910650053437,53063cyclictest0-21swapper23:43:050
43889910648053417,53063cyclictest0-21swapper21:09:410
43889910647953470,53009cyclictest0-21swapper00:35:400
43889910643853436,53002cyclictest0-21swapper22:05:070
43889910643453367,52979cyclictest3950irq/9-acpi00:06:520
43889910641353423,52990cyclictest0-21swapper23:10:360
43889910640153417,52984cyclictest0-21swapper19:28:320
43889910625353387,52800cyclictest0-21swapper20:28:590
43889910623253479,52753cyclictest0-21swapper19:58:500
43889910621353472,52741cyclictest0-21swapper19:42:560
43889910621353465,52748cyclictest0-21swapper19:39:150
43889910619553461,52734cyclictest0-21swapper21:20:440
43889910617853456,52722cyclictest0-21swapper19:51:480
43889910615953400,52759cyclictest0-21swapper20:11:340
43889910615553398,52757cyclictest0-21swapper21:43:400
43889910614053391,52749cyclictest0-21swapper00:03:410
43889910612353424,52699cyclictest0-21swapper20:57:470
43889910588353379,52504cyclictest0-21swapper22:45:380
43889910578852972,52814cyclictest21958-21ssh23:33:120
43889910562952987,52640cyclictest26756-21ssh22:52:100
43889910504752943,52102cyclictest0-21swapper00:13:240
4388995387053405,465cyclictest0-21swapper23:01:230
4388995386853429,439cyclictest0-21swapper20:07:230
4388995382753386,441cyclictest0-21swapper23:49:570
4388995362124,53476cyclictest0-21swapper20:36:310
4388995358653435,151cyclictest0-21swapper22:24:520
4388995357453423,151cyclictest0-21swapper20:03:320
4388995351453467,47cyclictest0-21swapper21:04:590
4388995350826,0cyclictest0-21swapper19:14:270
4388995317125,53146cyclictest0-21swapper20:17:160
4388995307525,52958cyclictest0-21swapper21:17:330
4388995306125,53036cyclictest0-21swapper22:17:400
43889923991094,1180cyclictest16287-21ssh22:36:260
43889921871084,977cyclictest30578-21ssh00:34:000
4388992157953,1108cyclictest11820-21kworker/0:221:46:510
43889920911033,1023cyclictest0-21swapper20:32:000
43889920461030,892cyclictest21700-21diskmemload23:06:140
4388992043994,1014cyclictest0-21swapper20:54:360
43889920141026,950cyclictest13959-21ssh22:33:450
43889919911036,863cyclictest0-21swapper20:22:570
43889919851029,863cyclictest0-21swapper23:37:030
43889919711021,855cyclictest0-21swapper21:32:270
43889919251044,781cyclictest18703-21rm23:28:310
43889919231065,734cyclictest9814-21ssh22:27:030
43889918801041,747cyclictest0-21swapper22:10:080
43889917441059,586cyclictest25043-21ssh22:01:460
43889917281083,552cyclictest31933-21kworker/u2:223:58:290
43889916941070,624cyclictest0-21swapper20:48:450
4388991654883,746cyclictest26876-21ssh00:28:180
43889915431046,430cyclictest3950irq/9-acpi19:15:580
43889915011011,427cyclictest9-21ksoftirqd/019:48:570
43889913951025,332cyclictest23855-21ssh00:24:070
43889913821066,316cyclictest0-21swapper21:52:530
3457255963,240sleep00-21swapper19:05:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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