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2026-01-30 - 10:01
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 Fri Jan 30, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49817425419,30sleep70-21swapper/719:03:527
49815425443,7sleep50-21swapper/519:03:345
49819224836,8sleep40-21swapper/419:04:054
498687994745,2cyclictest1059465-21kworker/u16:1+events_unbound23:31:436
498688994438,5cyclictest1240129-21latency_hist00:36:437
498688994037,2cyclictest124-21kswapd022:07:067
498688994035,4cyclictest1179869-21latency_hist00:11:447
498688994034,5cyclictest1047423-21latency_hist23:16:437
498688994034,5cyclictest1047423-21latency_hist23:16:437
498682994036,3cyclictest830854-21kworker/u16:1+flush-8:022:11:445
498687993937,2cyclictest1202663-21kworker/u16:1+flush-8:000:21:446
498687993936,2cyclictest734593-21kworker/u16:2+flush-8:021:57:146
498688993736,0cyclictest0-21swapper/722:36:597
49819423726,8sleep60-21swapper/619:04:076
498682993634,2cyclictest1059465-21kworker/u16:1+flush-8:000:06:585
498679993633,2cyclictest1032573-21kworker/u16:5+events_unbound23:41:584
498688993534,0cyclictest0-21swapper/722:17:077
498688993529,5cyclictest647218-21latency_hist20:21:447
498687993432,2cyclictest830854-21kworker/u16:1+events_unbound22:52:026
498687993432,2cyclictest705502-21kworker/u16:1+flush-8:021:16:446
498687993432,2cyclictest705502-21kworker/u16:1+flush-8:021:16:446
11064622340,1chrt1106461-21ssh23:39:347
498688993327,5cyclictest541100-21latency_hist19:26:447
498687993331,2cyclictest938619-21kworker/u16:4+flush-8:023:16:386
498687993331,2cyclictest938619-21kworker/u16:4+flush-8:023:16:386
498682993231,1cyclictest853516-21kworker/u16:0+events_unbound21:54:495
498682993231,1cyclictest853516-21kworker/u16:0+events_unbound21:54:495
498687993129,2cyclictest570428-21kworker/u16:2+flush-8:020:27:096
498687993128,3cyclictest498438-21kworker/u16:1+events_unbound19:37:066
498682993129,2cyclictest830854-21kworker/u16:1+events_unbound22:27:075
498682992927,2cyclictest985005-21kworker/u16:0+events_unbound23:32:065
498688992827,0cyclictest0-21swapper/722:11:587
498688992822,5cyclictest842459-21latency_hist21:51:437
498682992825,2cyclictest864578-21kworker/u16:5+events_unbound22:02:005
498679992825,2cyclictest830854-21kworker/u16:1+flush-8:021:54:394
498679992825,2cyclictest830854-21kworker/u16:1+flush-8:021:54:394
498688992726,0cyclictest0-21swapper/719:12:037
498688992724,2cyclictest124-21kswapd023:51:577
498688992724,2cyclictest124-21kswapd023:51:577
498687992725,2cyclictest1093266-21kworker/u16:2+events_unbound23:36:386
498682992725,2cyclictest425534-21kworker/u16:2+events_unbound19:21:595
498682992624,2cyclictest938619-21kworker/u16:4+events_unbound22:47:135
498682992624,2cyclictest891199-21kworker/u16:2+events_unbound22:12:125
498682992624,2cyclictest830854-21kworker/u16:1+flush-8:022:56:395
498682992624,2cyclictest1142668-21kworker/u16:3+events_unbound00:12:065
498682992623,3cyclictest1059465-21kworker/u16:1+flush-8:023:26:445
498682992622,3cyclictest677770-21kworker/u16:0+flush-8:021:12:015
498682992622,3cyclictest677770-21kworker/u16:0+flush-8:021:12:015
11648402260,1chrt1164834-21ssh00:02:107
498687992523,2cyclictest891199-21kworker/u16:2+events_unbound22:12:066
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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