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2026-02-19 - 00:13
[ 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 100 highest latencies:
System rack0slot2.osadl.org (updated Wed Feb 18, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40495692990,1sleep74049572-21sort12:00:507
37612512650,1sleep73761252-21cat10:01:007
3385797996058,2cyclictest3513685-21kworker/u16:2+events_unbound08:37:326
338539825949,7sleep50-21swapper/507:03:425
3385797995452,2cyclictest3980661-21kworker/u16:2+events_unbound12:00:396
3385797995250,2cyclictest4000037-21kworker/u16:5+events_unbound12:10:586
3385797995149,2cyclictest3726780-21kworker/u16:2+events_unbound10:15:526
338534625140,7sleep40-21swapper/407:03:004
3385797994845,2cyclictest3872691-21kworker/u16:2+events_unbound11:10:416
338546424736,8sleep60-21swapper/607:04:396
3385797994644,2cyclictest3980661-21kworker/u16:2+events_unbound11:57:476
3385797994442,2cyclictest3968574-21kworker/u16:0+events_unbound12:05:516
3385797994441,2cyclictest3763789-21kworker/u16:4+events_unbound10:10:436
3385801994237,4cyclictest3872273-21latency_hist10:50:267
3385797994240,2cyclictest3475235-21kworker/u16:0+flush-8:007:55:266
3385797994139,2cyclictest3894105-21kworker/u16:3+events_unbound11:15:596
3385797994139,2cyclictest3894105-21kworker/u16:3+events_unbound11:15:596
3385797994139,2cyclictest3872691-21kworker/u16:2+events_unbound11:09:526
3385797994139,2cyclictest3872691-21kworker/u16:2+events_unbound10:51:326
3385797994139,2cyclictest3821701-21kworker/u16:4+events_unbound10:31:366
3385797994139,2cyclictest3691521-21kworker/u16:0+flush-8:009:45:426
3385795994138,2cyclictest1925032-21kworker/u16:5+events_unbound07:10:285
3385797994038,2cyclictest4000037-21kworker/u16:5+events_unbound12:30:236
3385797994038,2cyclictest3968574-21kworker/u16:0+events_unbound11:44:396
3385797994038,2cyclictest3714189-21kworker/u16:3+events_unbound10:00:536
33764562403,31sleep70-21swapper/707:00:397
3385797993937,2cyclictest3955653-21kworker/u16:1+events_unbound11:24:286
3385797993937,2cyclictest3872691-21kworker/u16:2+flush-8:010:55:366
3385797993937,2cyclictest3714189-21kworker/u16:3+events_unbound10:42:366
3385797993937,2cyclictest3631571-21kworker/u16:1+events_unbound09:50:516
3385797993837,1cyclictest3955653-21kworker/u16:1+events_unbound11:29:076
3385797993735,2cyclictest4074476-21kworker/u16:0+events_unbound12:33:116
3385797993735,2cyclictest4074476-21kworker/u16:0+events_unbound12:33:116
3385797993735,2cyclictest4062047-21kworker/u16:1+events_unbound12:20:396
3385797993735,2cyclictest3821661-21kworker/u16:1+events_unbound10:35:446
3385797993634,2cyclictest4000037-21kworker/u16:5+events_unbound11:49:366
3385797993634,2cyclictest3821661-21kworker/u16:1+events_unbound11:00:556
3385797993634,2cyclictest3714189-21kworker/u16:3+events_unbound10:06:356
3385797993634,2cyclictest3691521-21kworker/u16:0+flush-8:009:55:596
3385797993634,2cyclictest3691521-21kworker/u16:0+flush-8:009:36:006
3385797993634,2cyclictest3691521-21kworker/u16:0+events_unbound10:26:006
3385797993634,2cyclictest3631571-21kworker/u16:1+flush-8:009:26:086
3385797993634,2cyclictest3551852-21kworker/u16:6+events_unbound09:15:236
3385797993634,2cyclictest3551852-21kworker/u16:6+events_unbound09:15:236
3385797993634,2cyclictest3513685-21kworker/u16:2+events_unbound09:42:356
3385797993634,2cyclictest3513685-21kworker/u16:2+events_unbound09:24:366
3385797993533,2cyclictest3590590-21kworker/u16:3+events_unbound09:19:476
3385797993533,2cyclictest3513685-21kworker/u16:2+events_unbound09:31:076
3385797993432,2cyclictest4062047-21kworker/u16:1+events_unbound12:18:436
3385797993432,2cyclictest3590590-21kworker/u16:3+events_unbound09:10:246
3385797993331,2cyclictest3980661-21kworker/u16:2+flush-8:011:50:596
3385797993331,2cyclictest3980661-21kworker/u16:2+flush-8:011:50:596
3385797993331,2cyclictest3714189-21kworker/u16:3+events_unbound10:45:546
3385797993331,2cyclictest3691521-21kworker/u16:0+events_unbound10:20:596
3385795993331,2cyclictest3580560-21kworker/u16:0+events_unbound09:05:525
3385797993230,2cyclictest3968574-21kworker/u16:0+events_unbound11:37:046
3385795993230,2cyclictest3417381-21kworker/u16:1+events_unbound07:55:525
3385797993028,2cyclictest3955653-21kworker/u16:1+events_unbound11:33:006
3385793993027,2cyclictest3523659-21kworker/u16:0+events_unbound08:25:394
3385801992925,2cyclictest3837416-21iostat10:35:427
3385793992927,2cyclictest3551852-21kworker/u16:6+flush-8:009:30:404
3385793992927,2cyclictest3347226-21kworker/u16:0+events_unbound07:15:524
38009602270,0chrt3800959-21df10:20:397
3385801992724,2cyclictest124-21kswapd011:05:397
3385797992725,2cyclictest3551852-21kworker/u16:6+events_unbound08:45:566
3385797992725,2cyclictest3523659-21kworker/u16:0+events_unbound08:28:366
3385797992725,2cyclictest3347226-21kworker/u16:0+events_unbound07:36:376
3385795992623,2cyclictest3631571-21kworker/u16:1+flush-8:009:35:415
3385801992519,5cyclictest3418165-21latency_hist07:20:277
3385797992523,2cyclictest3417381-21kworker/u16:1+events_unbound07:41:016
3385793992523,2cyclictest3580560-21kworker/u16:0+events_unbound09:05:564
3385801992422,1cyclictest0-21swapper/707:50:447
3385797992422,2cyclictest3590590-21kworker/u16:3+events_unbound08:51:366
3385797992422,2cyclictest3551852-21kworker/u16:6+events_unbound08:31:526
3385797992422,2cyclictest3386021-21kworker/u16:2+events_unbound07:33:366
3385795992422,2cyclictest3347226-21kworker/u16:0+events_unbound07:05:515
3385801992323,0cyclictest0-21swapper/709:04:387
3385801992320,2cyclictest3857879-21ssh10:41:107
3385797992321,2cyclictest3417381-21kworker/u16:1+events_unbound07:20:576
3385793992321,2cyclictest3551852-21kworker/u16:6+flush-8:009:15:494
3385801992221,0cyclictest0-21swapper/708:42:317
3385801992217,4cyclictest3775858-21latency_hist10:10:267
3385801992120,0cyclictest0-21swapper/707:35:437
3385797992119,2cyclictest3523659-21kworker/u16:0+events_unbound08:24:366
3385801992020,0cyclictest0-21swapper/709:10:227
3385801992019,0cyclictest0-21swapper/708:35:077
3385801992019,0cyclictest0-21swapper/708:05:457
3385801992019,0cyclictest0-21swapper/707:06:517
3385801992018,1cyclictest3823575-21ssh10:29:377
3385801992018,1cyclictest0-21swapper/707:55:447
3385801992015,4cyclictest3981882-21cat11:35:407
3385801992014,5cyclictest3787939-21latency_hist10:15:267
338580199200,18cyclictest5656-21ssh-agent08:40:067
338580199199,8cyclictest0-21swapper/709:35:387
3385801991919,0cyclictest0-21swapper/708:04:347
3385801991918,0cyclictest0-21swapper/707:27:597
3385801991915,3cyclictest1267-21snmpd12:06:027
3385801991913,5cyclictest3465936-21latency_hist07:45:267
3385801991912,6cyclictest0-21swapper/710:50:467
3385797991917,2cyclictest3513685-21kworker/u16:2+events_unbound08:17:366
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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