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2026-04-01 - 04:16
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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 376 highest latencies:
System rack6slot6 (updated Wed Apr 01, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164769910716353393,53705cyclictest9-21ksoftirqd/021:35:030
164769910698953459,53433cyclictest32480-21runrttasks20:59:220
164769910677953399,53315cyclictest0-21swapper22:47:540
164769910675953456,53206cyclictest1907-21snmpd19:31:170
164769910670953470,53239cyclictest0-21swapper23:30:360
164769910664653414,53166cyclictest0-21swapper22:59:170
164769910650753468,53039cyclictest0-21swapper22:54:260
164769910649053451,53039cyclictest0-21swapper23:14:110
164769910644053396,53044cyclictest0-21swapper22:23:170
164769910640653436,52970cyclictest0-21swapper19:39:490
164769910638453456,52864cyclictest9-21ksoftirqd/021:06:140
164769910637753470,52843cyclictest9-21ksoftirqd/020:48:590
164769910629153405,52886cyclictest0-21swapper20:36:560
164769910619853468,52730cyclictest0-21swapper00:33:340
164769910618853470,52718cyclictest0-21swapper21:46:160
164769910617153428,52703cyclictest0-21swapper23:02:480
164769910615253399,52753cyclictest0-21swapper21:44:250
164769910615053395,52755cyclictest0-21swapper19:25:350
164769910614153445,52696cyclictest0-21swapper22:14:040
164769910612053426,52694cyclictest0-21swapper20:04:570
164769910575752919,52836cyclictest10271-21ssh00:27:220
164769910518053071,52107cyclictest0-21swapper23:23:040
164769910500752917,52088cyclictest0-21swapper23:19:030
16476995336624,53250cyclictest0-21swapper20:31:440
16476995324425,53219cyclictest0-21swapper22:18:150
16476995322432,53192cyclictest0-21swapper00:14:390
16476995307827,53051cyclictest0-21swapper00:23:410
16476995307026,53044cyclictest0-21swapper23:29:360
16476995279832,52766cyclictest0-21swapper20:51:300
164769947502716,2031cyclictest2679-21devkit-power-da21:03:340
164769924441089,1256cyclictest2099-21runrttasks23:56:130
164769923651060,1207cyclictest7114-21munin-node23:35:270
164769923461052,1198cyclictest116602sleep020:08:480
164769922901040,1183cyclictest3950irq/9-acpi22:27:580
164769922321064,1044cyclictest17659-21ssh21:28:510
164769922271021,1161cyclictest3950irq/9-acpi00:05:560
164769921541038,1078cyclictest4462-21diskmemload21:30:210
164769921111040,1032cyclictest4780-21ssh21:56:190
164769920681022,1012cyclictest0-21swapper22:42:120
164769920471012,1001cyclictest0-21swapper23:45:400
164769920421009,998cyclictest0-21swapper22:30:590
164769920291062,841cyclictest1907-21snmpd19:51:330
164769920151057,836cyclictest27041-21ssh00:03:450
16476992001988,975cyclictest2673-21ssh00:15:490
164769919961053,819cyclictest2099-21runrttasks00:36:450
16476991990984,969cyclictest7413-21ssh21:13:570
164769919711024,854cyclictest0-21swapper19:47:320
16476991969949,985cyclictest0-21swapper23:09:200
164769919131092,696cyclictest12825-21ssh22:08:520
164769918981054,724cyclictest0-21swapper19:24:250
164769918811091,668cyclictest10003-21ssh21:17:070
16476991834919,888cyclictest1173-21hwclock-spikech19:44:010
164769917861074,618cyclictest9-21ksoftirqd/021:50:370
164769917531019,644cyclictest16461-21cyclictest19:58:450
164769916621094,568cyclictest0-21swapper23:42:490
164769916381080,558cyclictest0-21swapper22:00:500
164769916351079,556cyclictest0-21swapper20:10:480
164769916151069,546cyclictest0-21swapper20:42:370
164769915311011,520cyclictest0-21swapper21:23:090
164769915051022,421cyclictest3950irq/9-acpi22:36:300
164769914481089,359cyclictest0-21swapper20:27:430
1647699144727,1327cyclictest18871-21ssh23:51:020
16476991168622,542cyclictest19491-21hwlatdetect-tra19:14:520
16476991153614,535cyclictest19024-21wc19:17:130
16476991135510,623cyclictest0-21swapper20:20:110
1647699883483,398cyclictest14828-21ntp_states20:15:200
30372750,1sleep03034-21wc19:05:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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