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2026-02-26 - 04:16
[ 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 792 highest latencies:
System rack2slot7s.osadl.org (updated Wed Feb 25, 2026 19:55:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2657999996147,10cyclictest2659470-21kworker/u8:2-xprtiod17:40:310
2657999995953,4cyclictest151ktimers/018:05:230
2657999995953,4cyclictest151ktimers/018:05:230
2657999995842,11cyclictest12450irq/32-eth018:10:370
2657999995746,7cyclictest0-21swapper/018:20:230
2658000995648,6cyclictest3484122-21grep18:10:371
2658001995241,7cyclictest1355119-21cups-browsed18:20:012
2657999995236,13cyclictest2969824-21execl17:50:230
2658001995043,4cyclictest2912835-21sh17:41:092
2658001995042,5cyclictest3534104-21sh18:12:382
2658000995042,5cyclictest2896597-21sh17:40:291
2658000994935,10cyclictest3385098-21Run18:05:231
2658000994935,10cyclictest3385098-21Run18:05:231
2658001994623,18cyclictest564-21dbus-daemon17:55:272
2658000994637,6cyclictest2659501-21systemd-run17:10:011
2658000994637,6cyclictest2659501-21systemd-run17:10:011
2658000994634,7cyclictest0-21swapper/117:50:251
265799999462,37cyclictest2664519-21fstime17:25:220
2658001994537,5cyclictest3400818-21multi.sh18:07:162
2658001994537,5cyclictest3400818-21multi.sh18:07:162
2658000994531,9cyclictest3111179-21spawn18:03:411
2658001994436,5cyclictest2663199-21cpuspeed17:20:122
2658001994436,5cyclictest2663199-21cpuspeed17:20:122
2658000994415,25cyclictest871-21ntpd18:35:241
2658001994335,5cyclictest2971103-21fstime17:51:252
2657999994228,9cyclictest12450irq/32-eth018:15:270
2657999994132,6cyclictest3011765-21spawn18:02:590
2657999994131,7cyclictest2969584-21latency_hist17:50:020
265800199401,34cyclictest2856305-21syscall17:35:242
2658000994032,5cyclictest2890135-21tee17:40:001
2657999994029,8cyclictest0-21swapper/017:30:300
2657999994029,8cyclictest0-21swapper/017:30:300
2658001993911,7cyclictest3247199-21spawn18:04:242
2658000993832,3cyclictest0-21swapper/118:00:001
2658000993830,5cyclictest2658010-21systemd-run17:05:011
2657999993731,4cyclictest2972821-21Run17:59:080
2658001993629,4cyclictest2854865-21spawn17:35:002
2658001993629,4cyclictest2854865-21spawn17:35:002
2658001993625,8cyclictest3550405-21munin-plugin-st18:40:012
2658000993626,6cyclictest2969411-21sh17:46:311
2658000993524,7cyclictest2855496-21spawn17:35:011
2658000993524,7cyclictest2855496-21spawn17:35:011
2657999993526,7cyclictest674-21gdbus17:39:300
2658001993428,3cyclictest0-21swapper/217:50:022
265799999343,25cyclictest2663120-21execl17:20:280
265799999343,25cyclictest2663120-21execl17:20:280
2658001993326,3cyclictest0-21swapper/217:26:502
265800099337,9cyclictest2663120-21execl17:20:271
265800099337,9cyclictest2663120-21execl17:20:271
2658000993327,3cyclictest0-21swapper/117:15:011
2658000993327,3cyclictest0-21swapper/117:15:011
2657999993323,7cyclictest0-21swapper/017:20:000
2657999993323,7cyclictest0-21swapper/017:20:000
2658000993219,8cyclictest3545384-21ntpq18:20:241
2658001993120,7cyclictest2658836-21ntpq17:05:182
2658001993120,7cyclictest2658836-21ntpq17:05:182
2658001993116,12cyclictest2660335-21ntpq17:10:232
2658001993116,12cyclictest2660335-21ntpq17:10:232
2658000993123,5cyclictest3543439-21fschecks_time18:15:151
2658000993123,5cyclictest2665744-21users17:25:341
2658001993016,11cyclictest3548294-21ntpq18:30:212
2658000993017,8cyclictest3548368-21ntpq18:30:241
2658001992919,7cyclictest3545338-21ntpq18:20:222
2658000992910,4cyclictest28-21ksoftirqd/117:15:171
2658000992910,4cyclictest28-21ksoftirqd/117:15:171
2658001992816,9cyclictest3546477-21/usr/sbin/munin18:25:162
2658000992820,5cyclictest1165-21mta-sts-daemon18:25:121
2658001992714,10cyclictest2662097-21sendmail_mailqu17:15:272
2658001992714,10cyclictest2662097-21sendmail_mailqu17:15:272
2657999992619,5cyclictest3547780-21aten_r2power_po18:30:110
2657999992516,7cyclictest2660975-21munin-plugin-st17:15:000
2657999992516,7cyclictest2660975-21munin-plugin-st17:15:000
2657999992516,6cyclictest2658503-21fschecks_count17:05:130
2657999992516,6cyclictest2658503-21fschecks_count17:05:130
2657999992513,9cyclictest0-21swapper/018:35:310
2657999992513,3cyclictest0-21swapper/018:25:190
2658001992317,3cyclictest0-21swapper/217:05:012
265800299204,9cyclictest0-21swapper/317:51:113
265800299204,10cyclictest0-21swapper/317:56:153
265799999207,9cyclictest564-21dbus-daemon17:05:010
265800299192,7cyclictest0-21swapper/317:35:243
265800299184,8cyclictest0-21swapper/318:10:313
265800299173,9cyclictest0-21swapper/317:40:243
265800299171,7cyclictest0-21swapper/317:30:293
265800299171,7cyclictest0-21swapper/317:30:293
265800299171,6cyclictest0-21swapper/318:35:213
265800299163,7cyclictest0-21swapper/317:45:273
265800299162,9cyclictest0-21swapper/318:05:233
265800299162,9cyclictest0-21swapper/318:05:233
265800299161,7cyclictest0-21swapper/317:20:193
265800299161,7cyclictest0-21swapper/317:20:193
265800299161,6cyclictest0-21swapper/318:00:213
265800299161,6cyclictest0-21swapper/317:10:233
265800299161,6cyclictest0-21swapper/317:10:233
265800299151,7cyclictest0-21swapper/318:30:213
265800299151,5cyclictest0-21swapper/318:15:203
265800299141,8cyclictest0-21swapper/317:25:233
265800299141,6cyclictest0-21swapper/318:20:213
265800299132,7cyclictest0-21swapper/318:25:213
265800299131,7cyclictest0-21swapper/317:05:233
265800299131,7cyclictest0-21swapper/317:05:233
265800299121,7cyclictest0-21swapper/317:15:193
265800299121,7cyclictest0-21swapper/317:15:193
26580029993,5cyclictest0-21swapper/317:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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