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2026-02-03 - 21:51
[ 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 #e, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot4s.osadl.org (updated Tue Feb 03, 2026 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2079964994640,4cyclictest2205207-21cat09:15:013
2079957994340,2cyclictest2288766-21kworker/u8:0+flush-259:010:45:002
2079964993932,5cyclictest2121585-21latency_hist07:50:013
2079964993831,5cyclictest2355990-21kworker/u8:2+flush-259:011:55:183
2079952993630,4cyclictest2408249-21latency_hist12:30:010
2079957993528,5cyclictest2110438-21ntpq07:35:212
2079953993530,4cyclictest2346163-21apt-get11:30:111
2079957993428,4cyclictest2387221-21latency_hist12:10:012
2079957993428,4cyclictest2387221-21latency_hist12:10:012
2079957993426,6cyclictest2241064-21ntpq09:45:202
2079953993428,4cyclictest2148358-21latency_hist08:20:011
2079952993427,5cyclictest2339457-21ntpq11:20:220
2079957993328,4cyclictest2247595-21latency_hist09:55:012
2079952993328,3cyclictest2200089-21apt-get09:10:120
2079957993229,2cyclictest2069278-21kworker/u8:0+flush-259:008:00:152
2079957993127,3cyclictest2330240-21kworker/u8:3+events_unbound12:25:122
2079957993126,4cyclictest2074836-21kworker/u8:1+events_unbound07:10:132
2079957993126,3cyclictest2345484-21apt-get11:30:012
2079957993027,2cyclictest2074836-21kworker/u8:1+events_unbound07:20:242
2079957993026,3cyclictest2309564-21kworker/u8:1+flush-259:011:25:242
2079957993023,5cyclictest2183554-21ntpq08:50:222
2079953993025,3cyclictest2095653-21/usr/sbin/munin07:25:141
2079952993024,4cyclictest2344651-21ntpq11:25:210
2079953992823,4cyclictest2120758-21ntpq07:45:221
2079952992815,5cyclictest2226135-21gpgv09:35:010
2079964992720,5cyclictest2262123-21ntpq10:05:233
2079957992723,3cyclictest2210295-21kworker/u8:1+flush-259:009:55:262
2079957992720,4cyclictest2413388-21latency_hist12:35:012
2079953992724,2cyclictest2210295-21kworker/u8:1+flush-259:009:45:151
2079964992622,3cyclictest2069278-21kworker/u8:0+flush-259:007:35:243
2079957992622,3cyclictest2288766-21kworker/u8:0+flush-259:010:45:212
2079953992622,3cyclictest2106127-21latency_hist07:35:001
2079952992623,2cyclictest2330240-21kworker/u8:3+events_unbound11:35:160
2079952992620,4cyclictest2115553-21ntpq07:40:200
2079964992519,4cyclictest252-21systemd-journal08:43:353
2079964992519,4cyclictest2204990-21apt-get09:15:023
2079957992522,2cyclictest2200055-21kworker/u8:0+events_unbound09:15:162
2079957992522,2cyclictest2069278-21kworker/u8:0+flush-259:007:40:242
2079957992521,3cyclictest2221121-21apt-get09:30:122
2079957992521,3cyclictest2215740-21kworker/u8:0+flush-259:009:35:252
2079953992520,4cyclictest2382346-21apt-get12:05:121
2079953992520,4cyclictest2382346-21apt-get12:05:111
2079952992521,3cyclictest2132079-21kworker/u8:3+events_unbound08:05:130
207995299250,23cyclictest1-21systemd09:58:340
2079964992417,4cyclictest252-21systemd-journal09:03:513
2079957992421,2cyclictest2397549-21kworker/u8:2+flush-259:012:35:202
2079957992421,2cyclictest2309564-21kworker/u8:1+events_unbound11:10:222
2079957992421,2cyclictest2262997-21kworker/u8:1+flush-259:010:30:002
2079953992421,2cyclictest2074836-21kworker/u8:1+flush-259:007:15:201
2079953992420,3cyclictest2105838-21kworker/u8:2+events_unbound09:00:231
2079953992417,5cyclictest2293881-21latency_hist10:40:011
2079964992318,4cyclictest2345484-21apt-get11:29:593
2079957992320,2cyclictest2215740-21kworker/u8:0+flush-259:010:10:232
2079957992320,2cyclictest2153539-21kworker/u8:3+events_unbound08:30:152
2079957992319,3cyclictest2355990-21kworker/u8:2+events_unbound11:45:232
2079957992319,3cyclictest2111303-21kworker/u8:1+events_unbound07:55:022
2079957992318,3cyclictest2179288-21kworker/u8:3+events_unbound09:15:002
2079957992315,5cyclictest2142969-21cat08:15:012
2079953992321,1cyclictest2215740-21kworker/u8:0+events_unbound09:35:141
2079952992319,3cyclictest2289006-21apt-get10:35:110
2079952992318,3cyclictest2330248-21/usr/sbin/munin11:15:230
2079952992317,4cyclictest2168087-21ntpq08:35:210
2079964992217,4cyclictest2309564-21kworker/u8:1+flush-259:011:10:003
2079964992216,4cyclictest252-21systemd-journal07:23:353
2079953992219,2cyclictest2355990-21kworker/u8:2+flush-259:011:45:151
2079953992217,4cyclictest2330009-21latency_hist11:15:021
2079953992215,5cyclictest2184409-21latency_hist08:55:011
2079964992115,4cyclictest2402696-21apt-key12:25:013
2079964992115,4cyclictest2131847-21latency_hist08:00:013
2079957992118,2cyclictest2330240-21kworker/u8:3+events_unbound12:20:232
2079957992118,2cyclictest2179288-21kworker/u8:3+events_unbound08:55:132
2079957992118,2cyclictest2111303-21kworker/u8:1+flush-259:007:50:242
2079957992117,3cyclictest2330240-21kworker/u8:3+events_unbound12:02:362
2079957992115,4cyclictest2314733-21/usr/sbin/munin11:00:132
2079957992115,3cyclictest252-21systemd-journal09:28:342
2079953992118,2cyclictest2262997-21kworker/u8:1+flush-259:010:25:211
2079953992117,3cyclictest2330240-21kworker/u8:3+flush-259:012:30:211
2079953992117,3cyclictest2330240-21kworker/u8:3+flush-259:012:10:231
2079953992117,3cyclictest2330240-21kworker/u8:3+flush-259:012:00:221
2079953992117,3cyclictest2210295-21kworker/u8:1+flush-259:009:55:151
2079953992114,5cyclictest2256989-21ntpq10:00:211
2079953992114,5cyclictest2142797-21latency_hist08:15:011
2079952992118,2cyclictest2371724-21idleruntime-cro11:55:000
2079964992014,4cyclictest252-21systemd-journal09:10:003
2079957992016,3cyclictest2324825-21kworker/u8:4+events_unbound11:15:132
2079957992016,3cyclictest2215740-21kworker/u8:0+flush-259:009:40:222
2079957992016,3cyclictest2041086-21kworker/u8:2+events_unbound07:15:112
2079953992017,2cyclictest2330240-21kworker/u8:3+events_unbound12:15:211
2079953992016,3cyclictest2355990-21kworker/u8:2+flush-259:012:00:001
2079953992016,3cyclictest2340358-21kworker/u8:0+flush-259:011:40:161
2079953992016,3cyclictest2330240-21kworker/u8:3+flush-259:011:35:181
2079953992016,3cyclictest2309564-21kworker/u8:1+flush-259:011:15:211
2079953992016,3cyclictest2111303-21kworker/u8:1+flush-259:007:50:211
2079952992016,3cyclictest2309564-21kworker/u8:1+flush-259:010:55:170
2079952992013,5cyclictest252-21systemd-journal11:05:000
2079964991915,3cyclictest2330240-21kworker/u8:3+flush-259:011:55:003
2079957991916,2cyclictest2330240-21kworker/u8:3+events_unbound11:50:222
2079957991916,2cyclictest2309564-21kworker/u8:1+events_unbound11:05:122
2079957991916,2cyclictest2168978-21sh08:40:002
2079957991916,2cyclictest2142046-21kworker/u8:1+events_unbound08:45:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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