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2026-02-12 - 17:36
[ 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 50 highest latencies:
System rack2slot7s.osadl.org (updated Thu Feb 12, 2026 07:55:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4052865995634,9cyclictest12450irq/32-eth005:40:140
4052867994840,5cyclictest671792-21sh06:10:082
4052866994840,5cyclictest682086-21sh06:10:361
4052866994831,5cyclictest405019250kworker/u8:12+xprtiod06:09:201
4052867994739,5cyclictest669135-21sh06:10:012
4052867994738,5cyclictest105841-21multi.sh05:40:532
4052866994739,5cyclictest108555-21sh05:41:001
4052865994731,13cyclictest0-21swapper/006:10:290
4052865994632,11cyclictest169726-21execl05:50:240
4052865994632,11cyclictest169726-21execl05:50:240
4052867994436,5cyclictest169185-21munin-run05:50:002
4052866994436,5cyclictest747873-21systemd-run06:35:011
4052866994436,5cyclictest747873-21systemd-run06:35:011
4052866994436,4cyclictest0-21swapper/105:50:191
4052866994436,4cyclictest0-21swapper/105:50:191
4052865994229,10cyclictest631444-21sort06:08:300
4052865994135,4cyclictest55991-21systemd-run05:35:010
4052866994033,4cyclictest168417-21dhry2reg05:45:211
4052866994032,5cyclictest4055929-21latency_hist05:15:021
4052865994030,7cyclictest172295-21fstime05:56:380
4052865994030,7cyclictest172295-21fstime05:56:380
4052867993929,6cyclictest367397-21spawn06:03:362
4052866993931,5cyclictest458722-21spawn06:03:591
4052866993931,5cyclictest4054366-21systemd-run05:10:011
4052865993932,5cyclictest174099-21context106:01:160
4052865993831,5cyclictest169140-21Run05:49:130
4052867993728,6cyclictest563-21avahi-daemon05:37:462
4052867993727,6cyclictest170027-21netstat05:50:132
4052867993727,6cyclictest170027-21netstat05:50:132
4052866993630,3cyclictest0-21swapper/106:25:001
4052866993630,3cyclictest0-21swapper/106:25:001
4052867993530,2cyclictest0-21swapper/205:57:022
4052867993530,2cyclictest0-21swapper/205:57:022
4052867993524,8cyclictest4054364-21sh05:10:002
4052866993529,3cyclictest0-21swapper/105:40:011
4052867993428,3cyclictest0-21swapper/205:15:012
4052866993426,5cyclictest4052876-21systemd-run05:05:011
4052866993325,5cyclictest4058472-21ntp_kernel_pll_05:20:151
4052865993226,4cyclictest4057564-21cron05:20:010
4052865993225,4cyclictest90123-21idleruntime-cro05:40:010
4052867993124,4cyclictest743863-21fschecks_count06:20:082
4052867993124,4cyclictest743863-21fschecks_count06:20:082
4052865993122,7cyclictest744991-21latency_hist06:25:020
4052865993122,7cyclictest744991-21latency_hist06:25:020
4052867993022,5cyclictest747873-21systemd-run06:35:012
4052867993022,5cyclictest747873-21systemd-run06:35:012
4052867993014,6cyclictest171rcu_preempt05:21:282
4052866993026,2cyclictest0-21swapper/105:30:011
4052866993025,2cyclictest0-21swapper/105:30:141
4052866993023,4cyclictest4057573-21sh05:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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