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2026-02-18 - 09:53
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 highest latencies:
System rack2slot7s.osadl.org (updated Tue Feb 17, 2026 19:55:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395359998169,9cyclictest1217716-21sh18:10:382
395357996555,5cyclictest1217848-21sh18:10:380
395358996455,5cyclictest1217862-21expr18:10:381
395358996250,8cyclictest705248-21execl17:50:131
395359996144,13cyclictest0-21swapper/218:01:552
395357996140,18cyclictest684930-21sh17:42:450
395357996033,17cyclictest151ktimers/017:35:190
395357995931,25cyclictest1187981-21sh18:09:220
395357995931,25cyclictest1187981-21sh18:09:220
395357995428,5cyclictest705245-21Run17:50:080
395359995345,3cyclictest0-21swapper/217:40:182
395359995245,4cyclictest1203865-21sh18:10:012
395359995245,4cyclictest1203865-21sh18:10:012
395357995224,8cyclictest704882-21execl17:50:030
395358994940,6cyclictest631747-21sh17:40:291
395358994841,4cyclictest1168879-21multi.sh18:08:361
395358994841,4cyclictest1168879-21multi.sh18:08:361
395358994536,6cyclictest3606335-21systemd-logind18:30:021
395357994332,6cyclictest0-21swapper/017:15:240
395358994235,4cyclictest704882-21execl17:49:481
395359994135,3cyclictest0-21swapper/217:40:002
395359994134,4cyclictest401657-21munin-plugin-st17:25:012
395359994133,5cyclictest398406-21sh17:15:012
39535899411,32cyclictest400691-21execl17:20:181
395357994134,4cyclictest398392-21sh17:15:010
395357994132,7cyclictest1281343-21/usr/sbin/munin18:30:020
395359994032,5cyclictest705247-21execl17:50:162
395357994031,5cyclictest12450irq/32-eth017:20:170
395357993929,7cyclictest1278372-21sh18:20:010
395359993829,5cyclictest704881-21execl17:50:012
395357993834,3cyclictest395356-21cyclictest18:35:230
395357993830,4cyclictest0-21swapper/018:20:190
39535799371,30cyclictest401877-21fstime17:25:180
395359993628,5cyclictest1281363-21systemd-run18:30:022
395358993630,3cyclictest1168-21mta-sts-daemon17:05:211
395358993630,3cyclictest0-21swapper/117:35:011
395358993630,3cyclictest0-21swapper/117:35:011
395358993628,5cyclictest1279868-21systemd-run18:25:001
395359993527,5cyclictest707905-21tail17:55:302
395358993525,8cyclictest1277642-21needreboot18:15:151
395357993528,5cyclictest859234-21spawn18:03:270
395358993424,7cyclictest763220-21spawn18:03:031
395357993426,6cyclictest0-21swapper/017:56:100
395358993324,6cyclictest398324-21cron17:15:011
395358993323,7cyclictest402736-21mailstats17:25:251
395359993226,3cyclictest401673-21kworker/u8:16-xprtiod18:35:012
395359993224,5cyclictest1-21systemd17:30:022
395358993224,5cyclictest1281988-21kernelversion18:30:131
395358993217,3cyclictest399958-21kworker/u8:13-xprtiod17:37:391
395357993223,7cyclictest589776-21spawn17:35:000
395357993223,7cyclictest589776-21spawn17:35:000
395359993126,2cyclictest0-21swapper/217:05:012
395359993125,2cyclictest0-21swapper/218:20:102
395359993023,4cyclictest1167-21mta-sts-daemon18:35:212
395359993023,3cyclictest0-21swapper/218:15:172
395359993018,9cyclictest396212-21ntp_kernel_pll_17:05:162
395359993013,13cyclictest564-21dbus-daemon17:15:242
39535899306,6cyclictest28-21ksoftirqd/117:55:251
395358993023,3cyclictest0-21swapper/118:40:011
39535999293,24cyclictest404179-21pipe17:30:232
39535999293,24cyclictest404179-21pipe17:30:232
395357992924,3cyclictest391557-21kworker/u8:6-xprtiod17:10:000
39535899287,8cyclictest28-21ksoftirqd/117:15:241
395358992519,4cyclictest393948-21kworker/u8:7+xprtiod17:05:011
39536099212,10cyclictest0-21swapper/317:50:233
39535799201,14cyclictest1282390-21ps18:30:240
39536099181,7cyclictest0-21swapper/318:00:113
39536099172,9cyclictest0-21swapper/317:57:523
395357991711,2cyclictest0-21swapper/017:05:010
39536099163,8cyclictest0-21swapper/318:05:593
39536099163,8cyclictest0-21swapper/318:05:593
39536099163,7cyclictest0-21swapper/317:45:193
39536099162,8cyclictest0-21swapper/317:15:243
39536099162,6cyclictest0-21swapper/318:15:203
39536099162,10cyclictest0-21swapper/317:40:183
39536099161,9cyclictest0-21swapper/318:10:263
39536099161,7cyclictest0-21swapper/317:05:153
39536099161,6cyclictest0-21swapper/318:20:173
39536099143,5cyclictest0-21swapper/317:20:163
39536099141,6cyclictest0-21swapper/317:35:183
39536099141,5cyclictest0-21swapper/317:10:173
39536099131,7cyclictest0-21swapper/318:25:173
39536099131,7cyclictest0-21swapper/317:25:183
39536099124,4cyclictest0-21swapper/317:30:183
39536099124,4cyclictest0-21swapper/317:30:183
39536099111,6cyclictest0-21swapper/318:35:113
39536099101,6cyclictest0-21swapper/318:30:173
3953609982,5cyclictest0-21swapper/317:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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