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2024-06-24 - 12:03
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot2.osadl.org (updated Mon Jun 24, 2024 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
63867425420,29sleep70-21swapper/719:03:207
63867425420,29sleep70-21swapper/719:03:207
639036994240,2cyclictest730236-21kworker/u16:4+events_unbound20:12:265
639036994038,2cyclictest681650-21kworker/u16:0+events_unbound19:46:445
639036994035,4cyclictest974993-40dnf21:54:265
63864323826,8sleep40-21swapper/419:02:534
63864323826,8sleep40-21swapper/419:02:534
2679189380,31rtkit-daemon0-21swapper/519:00:575
2679189380,31rtkit-daemon0-21swapper/519:00:575
63867323523,8sleep60-21swapper/619:03:196
63867323523,8sleep60-21swapper/619:03:196
639040993431,3cyclictest847456-21kworker/u16:0+flush-8:020:47:056
639032993331,2cyclictest730236-21kworker/u16:4+events_unbound19:46:464
639032993026,3cyclictest1161311-21kworker/u16:0+flush-8:023:44:444
639042992827,0cyclictest0-21swapper/720:27:567
639032992725,2cyclictest1052816-21kworker/u16:0+flush-8:022:45:184
639042992523,1cyclictest0-21swapper/723:05:067
639040992520,4cyclictest630-21systemd-journal20:12:236
639042992322,0cyclictest0-21swapper/719:31:557
639032992220,2cyclictest867671-21kworker/u16:2+flush-8:023:15:144
639032992217,4cyclictest1062738-21latency_hist22:39:444
639042992120,0cyclictest0-21swapper/719:39:587
639042992120,0cyclictest0-21swapper/700:04:587
639042992119,1cyclictest0-21swapper/722:20:057
639040992118,2cyclictest975008-21kworker/u16:3+flush-8:021:55:006
639036992119,2cyclictest935741-21kworker/u16:0+events_unbound21:39:595
639032992117,3cyclictest701588-21cat19:34:454
639042992019,0cyclictest0-21swapper/722:45:167
639032992018,2cyclictest867671-21kworker/u16:2+events_unbound23:56:264
639032992018,2cyclictest867671-21kworker/u16:2+events_unbound23:56:264
639032992018,2cyclictest1004749-21kworker/u16:3+flush-8:022:49:594
639032992017,2cyclictest867671-21kworker/u16:2+flush-8:021:50:064
639032992017,2cyclictest847456-21kworker/u16:0+events_unbound20:50:034
639032992016,3cyclictest867671-21kworker/u16:2+flush-8:000:05:124
639042991918,0cyclictest0-21swapper/723:13:527
639042991918,0cyclictest0-21swapper/700:04:447
639042991917,1cyclictest0-21swapper/720:04:597
63904299190,17cyclictest0-21swapper/719:45:097
639040991917,2cyclictest867671-21kworker/u16:2+events_unbound21:35:026
639040991915,3cyclictest649031-21kworker/u16:3+flush-8:019:39:456
639036991916,3cyclictest619111-21kworker/u16:1+flush-8:020:35:165
639032991917,2cyclictest649031-21kworker/u16:3+events_unbound19:50:274
639032991917,2cyclictest619111-21kworker/u16:1+flush-8:020:20:144
639032991915,3cyclictest878078-21kworker/u16:4+flush-8:021:49:444
639032991915,3cyclictest878078-21kworker/u16:4+flush-8:021:49:444
639032991915,3cyclictest867671-21kworker/u16:2+flush-8:022:25:154
639042991817,0cyclictest0-21swapper/722:25:067
639042991817,0cyclictest0-21swapper/721:32:087
639042991817,0cyclictest0-21swapper/719:55:167
639042991817,0cyclictest0-21swapper/700:16:107
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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