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2026-07-23 - 12:11
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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, lowest P state: performance
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Thu Jul 23, 2026 00:45:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2025499102005239,4951cyclictest9764-21kworker/0:119:16:070
202549986994356,4330cyclictest9764-21kworker/0:119:24:430
202549981764081,4053cyclictest29427-21kworker/0:119:35:120
202549981574075,4068cyclictest9764-21kworker/0:119:14:150
202549974493881,3555cyclictest11261-21kworker/0:000:27:150
202549971383702,3422cyclictest3091-21kworker/0:100:01:020
202549969853807,3165cyclictest26761-21kworker/0:023:40:440
202549967883685,3061cyclictest3091-21kworker/0:123:59:030
202549967743630,3140cyclictest27473-21kworker/0:219:26:190
202549963733259,3063cyclictest11261-21kworker/0:000:13:220
202549962403312,2878cyclictest19020-21kworker/0:123:12:530
202549960543217,2787cyclictest26761-21kworker/0:023:33:360
202549955263052,2423cyclictest25233-21kworker/0:200:40:110
202549935752216,1345cyclictest11261-21kworker/0:000:15:160
199792774183,203sleep00-21swapper19:08:230
202549950955,440cyclictest16173-21expr23:05:310
202549948659,367cyclictest4285-21lldpd21:50:130
202549947452,238cyclictest14668-21df20:20:170
20254994691,468cyclictest0-21swapper21:33:070
202549946791,363cyclictest4040-21ssh23:47:310
202549944953,373cyclictest484-21diskmemload23:17:150
20254994461,431cyclictest484-21diskmemload22:38:040
20254994441,383cyclictest2706-21latency_hist22:30:020
20254994432,427cyclictest484-21diskmemload23:52:240
202549944273,87cyclictest22242-21ssh00:30:520
20254994422,426cyclictest484-21diskmemload00:06:100
20254994384,374cyclictest3919-21sshd21:16:220
20254994360,376cyclictest24708-21seq23:24:100
202549943535,385cyclictest8659-21ssh22:46:530
202549943464,357cyclictest13523-21ssh22:59:450
20254994323,369cyclictest4924-21runrttasks20:29:420
202549943146,88cyclictest11-21ksoftirqd/022:00:430
20254994311,370cyclictest2989-21ssh22:31:020
20254994310,371cyclictest28880-21munin-node22:15:170
20254994283,365cyclictest0-21swapper19:52:480
202549942567,346cyclictest351950irq/10-yenta21:13:080
202549942474,249cyclictest12584-21idleruntime-cro20:15:010
202549942464,348cyclictest11-21ksoftirqd/023:26:250
202549942454,186cyclictest27529-21ssh22:11:070
202549942355,186cyclictest16892-21ssh21:46:190
202549942246,363cyclictest484-21diskmemload22:41:490
20254994170,356cyclictest31800-21strings22:21:030
202549941644,359cyclictest13382-21ssh21:39:050
202549941452,303cyclictest21839-21ssh21:58:040
202549941339,361cyclictest7165-21munin-node20:00:540
202549941269,330cyclictest24673-21sed22:05:250
202549940753,341cyclictest29003-21munin-node19:30:360
202549940535,87cyclictest4305-21snmpd00:22:050
202549939952,347cyclictest0-21swapper21:22:200
202549939853,345cyclictest0-21swapper20:40:370
202549939554,341cyclictest0-21swapper20:51:260
202549939236,341cyclictest23813-21munin-node20:46:010
202549939231,361cyclictest0-21swapper21:06:140
202549939131,360cyclictest0-21swapper19:40:480
202549939131,360cyclictest0-21swapper00:39:240
202549939032,358cyclictest0-21swapper20:56:130
20254993901,376cyclictest4924-21runrttasks20:37:270
202549938936,340cyclictest2430-21python19:45:540
20254993840,370cyclictest9942-21awk22:50:440
202549938136,345cyclictest0-21swapper20:17:270
202549937731,346cyclictest0-21swapper21:02:240
20254993701,355cyclictest484-21diskmemload23:04:480
20254993691,355cyclictest0-21swapper20:33:310
202549936835,333cyclictest0-21swapper19:55:070
202549936493,259cyclictest4285-21lldpd20:06:510
202549935155,0cyclictest7272-21ssh21:25:160
202549935087,251cyclictest11-21ksoftirqd/021:40:530
202549926231,202cyclictest31567-21ssh23:37:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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