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2026-03-18 - 11:33
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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 Wed Mar 18, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260559910732953458,53779cyclictest0-21swapper22:05:020
260559910704453481,53471cyclictest9-21ksoftirqd/023:16:220
260559910703253440,53497cyclictest7536-21ssh00:12:590
260559910684453419,53360cyclictest15068-1kworker/u3:223:35:280
260559910680853417,53269cyclictest23865-21ssh00:37:060
260559910669953434,53199cyclictest26047-21cyclictest23:06:400
260559910659553471,53124cyclictest0-21swapper22:45:440
260559910658553419,53102cyclictest9-21ksoftirqd/021:19:390
260559910653453384,53061cyclictest32292-21kworker/0:200:04:360
260559910651153449,53062cyclictest0-21swapper20:30:250
260559910650353471,53032cyclictest0-21swapper20:01:360
260559910650353470,53033cyclictest0-21swapper19:51:430
260559910650253475,53027cyclictest0-21swapper23:34:180
260559910649353466,53027cyclictest0-21swapper22:14:550
260559910647253455,53017cyclictest0-21swapper22:54:560
260559910646953411,53058cyclictest0-21swapper19:41:510
260559910646553471,52994cyclictest0-21swapper23:44:510
260559910645853453,53005cyclictest0-21swapper23:14:520
260559910645753435,53022cyclictest0-21swapper23:02:080
260559910645353448,53005cyclictest0-21swapper22:58:470
260559910645353402,53051cyclictest0-21swapper21:55:390
260559910645053444,53006cyclictest0-21swapper21:01:340
260559910644253458,52984cyclictest0-21swapper20:49:200
260559910643653440,52996cyclictest0-21swapper21:48:570
260559910641553431,52984cyclictest0-21swapper19:26:360
260559910641453427,52987cyclictest0-21swapper21:30:420
260559910639053413,52977cyclictest0-21swapper20:24:030
260559910633453438,52832cyclictest26100-21kworker/0:220:29:340
260559910622553476,52749cyclictest0-21swapper20:51:510
260559910615953443,52716cyclictest0-21swapper20:13:300
260559910610152995,53104cyclictest0-21swapper22:01:010
260559910606253023,53036cyclictest32714-21ssh22:26:080
260559910593852967,52965cyclictest7183-21ssh23:25:050
260559910539852992,52404cyclictest8044-21ssh22:38:010
260559910516253047,52113cyclictest0-21swapper23:57:340
26055995398128,53827cyclictest26301-21ssh23:52:430
26055995345327,53426cyclictest0-21swapper20:07:380
26055995331527,438cyclictest0-21swapper22:15:450
26055995322428,0cyclictest0-21swapper20:15:400
26055995312126,53095cyclictest0-21swapper19:32:180
26055995308024,53056cyclictest0-21swapper19:23:350
26055995306325,52945cyclictest0-21swapper21:23:400
26055995304026,52922cyclictest0-21swapper19:56:250
260559924131021,1265cyclictest11398-21ssh00:19:100
260559923791005,1248cyclictest23675-21ssh23:49:220
260559922371004,1141cyclictest3950irq/9-acpi22:41:320
260559921351076,932cyclictest3070-21ssh00:05:260
26055992063952,1074cyclictest6569-21munin-node20:55:220
26055992042976,995cyclictest21633-21ssh00:34:350
260559920421089,826cyclictest3732-21ssh21:44:260
260559919691023,852cyclictest0-21swapper20:44:190
260559919531009,852cyclictest11-21rcu_preempt00:25:420
260559919431014,831cyclictest12634-21diskmemload21:10:060
260559919411070,779cyclictest0-21swapper22:31:090
26055991933957,941cyclictest0-21swapper23:23:550
260559918821024,764cyclictest0-21swapper19:49:330
260559918141022,667cyclictest14159-21ssh00:22:510
260559916771013,573cyclictest3950irq/9-acpi21:37:340
260559916721095,483cyclictest0-21swapper21:27:510
260559915621038,428cyclictest0-21swapper20:38:270
260559915011026,409cyclictest0-21swapper21:07:250
260559914901079,403cyclictest0-21swapper21:54:090
260559914651099,366cyclictest0-21swapper19:37:390
260559914431086,357cyclictest0-21swapper22:24:470
26055991236617,616cyclictest27792-21grep19:17:030
26055991137566,568cyclictest18168-21hwlatdetect-tra19:14:030
820421420,2sleep08200-21grep19:05:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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