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2025-10-27 - 10:55
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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 highest latencies:
System rack6slot6 (updated Mon Oct 27, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2179599210817105328,105487cyclictest0-21swapper23:23:090
217959910678653398,53297cyclictest289402sleep020:39:220
217959910672653473,53253cyclictest0-21swapper22:07:270
217959910672153471,53250cyclictest0-21swapper21:34:480
217959910669053478,53123cyclictest9-21ksoftirqd/000:38:510
217959910667953471,53118cyclictest9-21ksoftirqd/023:55:590
217959910665753456,53106cyclictest2114-21munin-node23:06:540
217959910665153321,53311cyclictest3950irq/9-acpi21:55:340
217959910655353488,52976cyclictest21777-21cyclictest20:22:470
217959910655253467,53021cyclictest3950irq/9-acpi22:17:000
217959910653353399,53134cyclictest0-21swapper20:15:150
217959910652053469,53051cyclictest0-21swapper20:49:350
217959910648753463,53024cyclictest0-21swapper21:42:000
217959910648353461,53022cyclictest0-21swapper23:10:260
217959910645953437,53022cyclictest0-21swapper21:48:320
217959910641753384,53033cyclictest0-21swapper22:46:290
217959910641153477,52870cyclictest21777-21cyclictest19:26:110
217959910638153444,52937cyclictest0-21swapper20:57:270
217959910636353436,52927cyclictest0-21swapper19:39:450
217959910618853446,52742cyclictest0-21swapper20:11:140
217959910606552981,53082cyclictest0-21swapper22:36:560
217959910585653344,52512cyclictest0-21swapper00:16:450
217959910575253007,52743cyclictest9945-21ssh00:08:220
217959910531452884,52428cyclictest9355-21ssh21:54:340
217959910513353032,52099cyclictest0-21swapper22:59:520
217959910501752913,52102cyclictest0-21swapper23:26:200
21795995373228,53612cyclictest133750irq/9-eth000:10:330
21795995350926,0cyclictest0-21swapper19:34:330
21795995313626,53110cyclictest0-21swapper22:27:030
21795995311631,53019cyclictest0-21swapper20:53:260
21795995298726,52869cyclictest0-21swapper20:29:490
217959937192138,1578cyclictest2739-21devkit-power-da00:02:410
217959924911088,1279cyclictest18175-21munin-node00:20:260
217959923961072,1226cyclictest2103-21runrttasks21:01:080
217959922651072,1069cyclictest9169-21diskmemload22:12:290
217959921431117,905cyclictest6227-21ssh23:18:580
217959921401041,1062cyclictest23535-21ssh21:29:460
217959920971036,1027cyclictest0-21swapper22:54:210
217959920661023,1009cyclictest0-21swapper00:25:370
217959920481089,860cyclictest27023-21ssh23:02:430
217959919841037,824cyclictest1993-21lldpd22:00:450
217959919801030,858cyclictest0-21swapper20:05:020
217959919691028,816cyclictest2103-21runrttasks21:11:210
21795991952954,962cyclictest19874-21ssh23:37:130
21795991940994,821cyclictest9169-21diskmemload21:39:390
217959919291067,795cyclictest133750irq/9-eth023:46:160
217959919221090,737cyclictest0-21swapper23:40:440
21795991895928,931cyclictest14481-21ssh21:16:130
217959918571074,658cyclictest1998-21sendmail20:41:430
21795991828948,846cyclictest0-21swapper22:21:110
217959917911065,629cyclictest30379-21ssh23:51:270
217959916941077,526cyclictest21777-21cyclictest00:32:090
217959916911100,591cyclictest0-21swapper19:59:100
217959916811079,602cyclictest0-21swapper22:32:450
21795991676914,726cyclictest16664-21ssh23:33:020
217959916611085,576cyclictest0-21swapper21:06:400
217959916551081,574cyclictest0-21swapper19:42:150
217959916091059,550cyclictest0-21swapper21:24:350
217959916031056,547cyclictest0-21swapper19:46:370
217959915851047,538cyclictest0-21swapper20:30:090
217959915771044,533cyclictest0-21swapper20:03:320
217959915271018,509cyclictest0-21swapper19:53:290
21795991240894,321cyclictest9169-21diskmemload22:43:380
2179599978622,353cyclictest7946-21hwlatdetect-tra19:18:290
2179599966616,347cyclictest11711-21hwlatdetect-tra19:21:090
2179599921495,424cyclictest133750irq/9-eth019:10:260
785622280,2sleep07857-21hwlatdetect-tra19:09:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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