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2026-06-01 - 11:44
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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 Mon Jun 01, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86799949312706,2222cyclictest29131-21kworker/0:019:12:030
83532749186,203sleep00-21swapper19:07:560
8679995501,535cyclictest10831-21sh00:37:230
86799951655,399cyclictest21102-21diskmemload22:46:290
86799951627,419cyclictest9334-21ssh21:56:490
86799951530,414cyclictest1708-21ssh22:55:520
86799951530,313cyclictest20558-21expr23:40:320
86799951354,398cyclictest21102-21diskmemload23:16:240
86799951026,423cyclictest2034-21fschecks_time00:16:340
86799950955,439cyclictest13553-21ssh23:23:520
86799950855,439cyclictest30344-21ssh00:05:380
86799950855,439cyclictest11773-21ssh22:03:110
86799950852,274cyclictest21102-21diskmemload21:14:540
86799950755,438cyclictest22677-21ssh22:29:480
86799950552,439cyclictest7219-21ssh23:09:060
86799950363,379cyclictest11-21ksoftirqd/021:51:510
86799950230,400cyclictest2625-21grep20:20:050
86799949955,264cyclictest21102-21diskmemload00:42:000
86799949928,402cyclictest27101-21munin-node23:56:170
86799949752,385cyclictest15466-21ssh23:27:460
86799948852,256cyclictest27184-21ssh21:23:380
86799948653,89cyclictest21102-21diskmemload22:12:330
86799948354,414cyclictest21102-21diskmemload00:03:590
86799948352,362cyclictest13071-21ntp_states19:20:200
86799948032,387cyclictest24280-21ssh22:31:580
86799947955,363cyclictest21102-21diskmemload21:25:410
86799947955,362cyclictest21102-21diskmemload23:35:450
86799947853,363cyclictest21102-21diskmemload21:35:300
86799947655,361cyclictest21102-21diskmemload00:21:090
86799947653,363cyclictest21102-21diskmemload22:18:420
86799947650,364cyclictest30912-21perl21:31:400
86799947629,387cyclictest17819-21rm23:34:010
86799947552,88cyclictest4894-21runrttasks22:50:560
86799947437,437cyclictest0-21swapper21:08:580
86799947156,353cyclictest21102-21diskmemload22:21:330
86799947054,356cyclictest15730-21tr20:55:150
86799947053,357cyclictest25900-21ssh23:54:420
86799946855,353cyclictest21102-21diskmemload23:48:200
86799946555,230cyclictest4894-21runrttasks22:09:530
86799946431,410cyclictest20978-21munin-node19:40:370
86799946127,363cyclictest11150-21which19:15:310
86799946053,221cyclictest21102-21diskmemload22:41:550
86799946029,361cyclictest62432chrt00:26:250
86799945753,343cyclictest24531-21ssh21:16:380
8679994524,434cyclictest3405-21ssh21:44:360
8679994501,387cyclictest5482-21munin-node20:25:520
8679994484,429cyclictest21102-21diskmemload23:03:170
86799944767,95cyclictest21102-21diskmemload00:12:060
86799944561,201cyclictest11-21ksoftirqd/021:03:420
86799943993,346cyclictest0-21swapper19:31:210
86799943929,394cyclictest14914-21ntpq19:25:190
86799943927,397cyclictest26703-21sshd22:38:350
86799943866,311cyclictest13-21rcuc/019:35:100
8679994351,373cyclictest0-21swapper20:44:450
86799942764,304cyclictest12-21rcu_preempt21:47:570
86799940854,339cyclictest21102-21diskmemload23:12:410
86799940638,87cyclictest0-21swapper20:32:530
86799939854,330cyclictest8927-21ssh00:33:280
86799939237,355cyclictest0-21swapper19:45:510
86799938139,158cyclictest28811-21tune2fs20:01:050
86799938054,313cyclictest3444-21strings20:20:500
86799937853,312cyclictest14626-21strings20:50:460
8679993765,357cyclictest0-21swapper20:12:340
86799937254,249cyclictest8334-21irqstats20:35:130
86799937128,318cyclictest25937-21if_eth019:55:140
86799936897,259cyclictest4253-21lldpd19:52:110
86799936228,319cyclictest12154-21df20:45:210
86799936029,317cyclictest30338-21needreboot20:05:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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