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2026-02-26 - 18:55
[ 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 100 highest latencies:
System rack2slot7s.osadl.org (updated Thu Feb 26, 2026 07:55:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3851822996639,19cyclictest0-21swapper/005:50:400
3851822996250,8cyclictest4086490-21sort05:40:250
3851824996134,6cyclictest525460-21sh06:12:262
3851824996132,5cyclictest4150458-21sh05:43:092
3851823995742,11cyclictest1165-21mta-sts-daemon05:50:291
3851823995537,9cyclictest3856906-21kworker/u8:13+xprtiod05:40:261
3851822995545,5cyclictest480132-21multi.sh06:10:370
3851823995443,7cyclictest479873-21sh06:10:361
3851823995341,7cyclictest543509-21cron06:25:011
3851823995340,8cyclictest386914-21Run06:06:171
385182299526,5cyclictest171rcu_preempt05:45:210
3851822995242,7cyclictest467685-21sh06:10:020
3851823995117,23cyclictest0-21swapper/105:35:281
3851824994840,5cyclictest391500-21multi.sh06:06:542
3851824994537,4cyclictest0-21swapper/205:50:302
3851822994537,5cyclictest3856879-21munin-run05:25:000
3851824994434,6cyclictest4165883-21Run06:01:342
3851823994314,12cyclictest11975-21spawn06:03:021
385182399425,24cyclictest1166-21mta-sts-daemon06:27:331
3851823994232,6cyclictest0-21swapper/105:05:011
3851822994230,9cyclictest542827-21needreboot06:20:210
3851824994032,5cyclictest4160910-21execl05:49:452
3851823993925,8cyclictest547446-21ntpq06:35:221
3851822993917,15cyclictest151ktimers/005:35:240
3851824993829,6cyclictest3852083-21systemd-run05:10:012
3851823993813,10cyclictest3855547-21execl05:20:191
3851824993729,5cyclictest0-21swapper/206:40:012
3851823993726,6cyclictest541412-21ntpq06:15:251
3851823993725,7cyclictest4163466-21ntpq05:55:231
3851822993730,4cyclictest350866-21spawn06:04:220
3851822993729,5cyclictest3606321-21systemd-journal05:15:010
385182499368,21cyclictest577-21mta-sts-daemon05:10:202
3851824993630,3cyclictest0-21swapper/205:20:252
3851824993627,5cyclictest543552-21grep06:25:012
3851823993626,6cyclictest545980-21ntpq06:30:231
3851823993626,6cyclictest545980-21ntpq06:30:231
3851822993628,5cyclictest4164178-21Run05:59:210
385182299361,7cyclictest171rcu_preempt06:27:330
3851824993526,4cyclictest0-21swapper/205:25:312
385182499351,29cyclictest4047745-21syscall05:35:262
3851824993511,17cyclictest735-21lldpd05:57:512
3851823993524,8cyclictest3852921-21ntpq05:10:171
3851823993521,7cyclictest4160014-21dhry2reg05:45:201
385182299359,24cyclictest0-21swapper/006:35:260
3851823993422,9cyclictest3854195-21if_err_eth005:15:151
3851824993325,5cyclictest544943-21unixbench_singl06:25:342
385182399331,27cyclictest3856943-21fstime05:25:291
3851823993213,16cyclictest4047114-21idleruntime-cro05:35:011
3851824993123,5cyclictest3855335-21/usr/sbin/munin05:20:012
3851823993122,6cyclictest57-21kcompactd005:05:321
385182299311,7cyclictest171rcu_preempt06:15:240
3851822993024,3cyclictest0-21swapper/005:25:330
3851822993020,7cyclictest0-21swapper/005:34:320
3851824992920,4cyclictest0-21swapper/206:30:302
3851824992920,4cyclictest0-21swapper/206:30:302
3851824992917,9cyclictest3859626-21switchtime05:30:332
3851822992823,2cyclictest0-21swapper/005:15:260
3851824992720,4cyclictest541994-21cron06:20:012
3851822992721,3cyclictest467510-21kworker/u8:4-nfsiod06:35:010
3851822992721,3cyclictest467510-21kworker/u8:4-nfsiod06:35:010
3851824992116,2cyclictest0-21swapper/205:05:012
385182599204,8cyclictest0-21swapper/306:00:233
3851822992010,7cyclictest0-21swapper/005:10:000
385182299194,12cyclictest3851879-21latency_hist05:05:020
385182599183,9cyclictest0-21swapper/305:50:233
385182599183,7cyclictest0-21swapper/305:40:243
385182599182,7cyclictest0-21swapper/305:45:223
385182599181,7cyclictest0-21swapper/306:20:263
385182599172,5cyclictest0-21swapper/305:30:223
385182599172,10cyclictest0-21swapper/306:10:393
385182599161,6cyclictest0-21swapper/305:35:203
385182599152,8cyclictest0-21swapper/305:56:133
385182599144,6cyclictest0-21swapper/306:07:163
385182599141,7cyclictest0-21swapper/305:20:213
385182599131,7cyclictest0-21swapper/305:10:173
385182599123,5cyclictest0-21swapper/306:35:233
385182599123,5cyclictest0-21swapper/305:20:003
385182599122,6cyclictest0-21swapper/306:30:303
385182599122,6cyclictest0-21swapper/306:30:303
385182599121,3cyclictest0-21swapper/305:25:313
385182599101,6cyclictest0-21swapper/306:25:153
385182599101,5cyclictest0-21swapper/306:15:243
38518259992,5cyclictest0-21swapper/305:10:013
38518259981,4cyclictest0-21swapper/305:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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