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2026-01-23 - 07:29
[ 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 23, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38268622930,0sleep40-21swapper/419:52:124
1569642900,0sleep60-21swapper/623:42:296
41759912670,1sleep74175992-21rm22:29:057
373574726656,7sleep60-21swapper/619:03:276
373570925949,7sleep50-21swapper/519:02:545
3736312995452,2cyclictest4068530-21kworker/u16:1+events_unbound21:47:264
3736312995451,2cyclictest4083529-21kworker/u16:3+events_unbound22:02:294
373599525319,30sleep70-21swapper/719:06:577
3736312995250,2cyclictest152310-21kworker/u16:1+events_unbound23:42:254
373597025141,7sleep40-21swapper/419:06:384
3736312995048,2cyclictest4083529-21kworker/u16:3+flush-8:022:12:264
3736312994846,2cyclictest20876-21kworker/u16:2+events_unbound22:52:254
3736312994845,2cyclictest3832410-21kworker/u16:0+events_unbound20:17:304
3736312994845,2cyclictest3818779-21kworker/u16:4+events_unbound20:22:274
3736312994643,2cyclictest4068530-21kworker/u16:1+events_unbound22:07:144
3736312994543,2cyclictest4153409-21kworker/u16:0+events_unbound23:22:464
3736312994543,2cyclictest260584-21kworker/u16:4+events_unbound00:27:284
3736312994341,2cyclictest129489-21kworker/u16:4+events_unbound23:32:294
3736312994340,2cyclictest3048660-21kworker/u16:0+flush-8:019:17:274
3736312994340,2cyclictest184657-21kworker/u16:0+events_unbound00:02:134
3736320994236,5cyclictest3797888-21latency_hist19:37:127
3736312994240,2cyclictest3935797-21kworker/u16:2+events_unbound21:52:254
3736312994139,2cyclictest4068530-21kworker/u16:1+events_unbound22:22:334
3736312994139,2cyclictest3935797-21kworker/u16:2+flush-8:021:57:444
3736312994138,2cyclictest3737524-21kworker/u16:1+events_unbound19:22:244
3736312994138,2cyclictest3737524-21kworker/u16:1+events_unbound19:22:244
3736312994137,3cyclictest3875448-21kworker/u16:3+flush-8:020:32:304
3736312993937,2cyclictest3972059-21kworker/u16:3+events_unbound21:19:144
3736312993937,2cyclictest3894080-21kworker/u16:1+flush-8:021:12:574
3736312993936,2cyclictest187792-21kworker/u16:1+events_unbound23:57:414
3736312993836,2cyclictest4091614-21kworker/u16:4+events_unbound22:18:294
3736312993836,2cyclictest235533-21kworker/u16:0+events_unbound00:19:424
3736312993836,2cyclictest115039-21kworker/u16:2+events_unbound23:39:214
3736320993731,5cyclictest3904035-21latency_hist20:32:127
3736312993735,2cyclictest4153409-21kworker/u16:0+events_unbound23:30:124
3736312993735,2cyclictest4054066-21kworker/u16:3+events_unbound21:42:434
3736312993735,2cyclictest3935797-21kworker/u16:2+flush-8:021:32:454
3736312993734,2cyclictest129488-21kworker/u16:3+events_unbound23:47:264
3736312993634,2cyclictest4091614-21kworker/u16:4+events_unbound22:31:094
3736312993634,2cyclictest187792-21kworker/u16:1+events_unbound00:34:454
3736312993533,2cyclictest4153409-21kworker/u16:0+events_unbound22:45:214
3736312993533,2cyclictest3935797-21kworker/u16:2+events_unbound21:24:174
3736312993533,2cyclictest3935797-21kworker/u16:2+events_unbound21:11:134
3736312993533,2cyclictest3894080-21kworker/u16:1+flush-8:021:27:454
3736312993533,2cyclictest235533-21kworker/u16:0+events_unbound00:14:414
3736312993533,2cyclictest129489-21kworker/u16:4+events_unbound23:54:324
1671682350,1chrt167167-21ip_192.168.115.23:47:277
3736320993433,0cyclictest0-21swapper/723:52:467
3736312993432,2cyclictest3935797-21kworker/u16:2+events_unbound21:37:444
3736312993331,2cyclictest43433-21kworker/u16:3+events_unbound23:17:364
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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