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2025-10-20 - 19:54
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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 the 792 highest latencies:
System rack6slot6 (updated Mon Oct 20, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215549910702553405,53498cyclictest6486-21diskmemload09:16:090
215549910692153429,53427cyclictest0-21swapper09:31:530
215549910679953407,53296cyclictest18223-21ssh11:43:010
215549910679353395,53308cyclictest4637-21rm11:24:050
215549910675953380,53314cyclictest0-21swapper07:20:250
215549910673653401,53237cyclictest1911-21snmpd07:30:280
215549910669853388,53221cyclictest133750irq/9-eth011:18:240
215549910661253416,53105cyclictest9-21ksoftirqd/010:00:110
215549910659753472,53125cyclictest0-21swapper10:36:320
215549910658953471,53118cyclictest0-21swapper11:36:390
215549910658653464,53122cyclictest0-21swapper08:34:370
215549910655653431,53125cyclictest0-21swapper07:14:440
215549910654253401,53141cyclictest0-21swapper07:48:130
215549910653053437,53093cyclictest0-21swapper08:45:400
215549910649053466,53024cyclictest0-21swapper12:13:400
215549910647553401,53074cyclictest0-21swapper08:59:340
215549910646553447,53018cyclictest0-21swapper12:24:430
215549910646053447,53013cyclictest0-21swapper11:31:180
215549910645153462,52891cyclictest31387-21ssh12:01:060
215549910644453470,52908cyclictest9-21ksoftirqd/010:44:540
215549910644253439,53003cyclictest0-21swapper07:41:510
215549910644053437,53003cyclictest0-21swapper08:21:330
215549910643353439,52994cyclictest0-21swapper12:07:480
215549910641753427,52990cyclictest0-21swapper07:19:050
215549910638153439,52942cyclictest0-21swapper08:03:280
215549910636853433,52935cyclictest0-21swapper12:17:010
215549910636653405,52898cyclictest21553-21cyclictest07:57:360
215549910628753413,52809cyclictest9-21ksoftirqd/009:08:060
215549910620553464,52741cyclictest0-21swapper08:40:580
215549910619953434,52765cyclictest0-21swapper10:21:370
215549910618753415,52772cyclictest0-21swapper08:11:500
215549910618153474,52707cyclictest0-21swapper08:16:210
215549910617053451,52719cyclictest0-21swapper09:03:350
215549910611953428,52691cyclictest0-21swapper07:28:280
215549910587453034,52838cyclictest22319-21ssh11:49:130
215549910539253079,52308cyclictest15205-21ssh12:25:030
215549910538652983,52401cyclictest8686-21ssh09:58:110
21554995395053395,555cyclictest0-21swapper11:26:260
21554995388753425,462cyclictest0-21swapper09:41:360
21554995383153392,439cyclictest0-21swapper09:21:100
21554995373224,53587cyclictest0-21swapper08:08:090
21554995372153414,216cyclictest0-21swapper07:35:300
21554995353127,53411cyclictest0-21swapper07:53:450
21554995323226,53206cyclictest0-21swapper08:28:250
215549924071110,1172cyclictest22087-21sh10:16:360
215549923531071,1156cyclictest6486-21diskmemload09:26:420
215549923151083,1105cyclictest2103-21runrttasks08:52:020
215549922531033,1096cyclictest7897-21ssh09:10:370
215549921781094,986cyclictest30083-21ssh11:14:330
215549921781026,1054cyclictest6486-21diskmemload10:31:400
21554992171999,1137cyclictest0-21swapper10:07:230
215549920861079,913cyclictest19984-21rm12:30:350
215549920621031,996cyclictest0-21swapper12:38:470
215549919881032,863cyclictest0-21swapper08:36:470
215549919781098,756cyclictest6486-21diskmemload09:51:090
215549919581028,909cyclictest0-21swapper11:59:260
215549918941088,708cyclictest2103-21runrttasks09:35:340
215549918361087,683cyclictest3950irq/9-acpi11:52:140
21554991779934,811cyclictest10642-21ssh10:45:540
215549917251088,547cyclictest11-21rcu_preempt09:47:280
215549916171028,589cyclictest0-21swapper10:58:180
215549915321011,486cyclictest25315-21rm11:07:000
215549915161028,426cyclictest9-21ksoftirqd/011:04:100
215549914681095,373cyclictest0-21swapper10:52:360
215549914601066,394cyclictest0-21swapper10:14:050
215549914441084,360cyclictest0-21swapper10:27:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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