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2026-03-01 - 06:41
[ 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 50 highest latencies:
System rackeslot4s.osadl.org (updated Sun Mar 01, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2146044993936,2cyclictest2250330-21kworker/u8:2+flush-259:022:50:213
2146039993731,4cyclictest2364224-21latency_hist23:50:012
2146036993529,4cyclictest2301645-21latency_hist22:50:011
2146044993330,2cyclictest2348836-21kworker/u8:2+flush-259:023:40:243
2146044993330,2cyclictest2164904-21kworker/u8:2+events_unbound21:15:203
2146044993329,3cyclictest2191104-21kworker/u8:3+events_unbound21:30:233
2146044993228,3cyclictest2379693-21kworker/u8:3+events_unbound00:05:163
2146036993229,2cyclictest2348836-21kworker/u8:2+flush-259:000:00:241
2146034993229,2cyclictest2164904-21kworker/u8:2+flush-259:020:30:210
2146044993128,2cyclictest2250330-21kworker/u8:2+events_unbound22:05:183
2146036993125,4cyclictest509-21rs:main1
2146044993027,2cyclictest2250330-21kworker/u8:2+flush-259:022:10:243
2146036993026,3cyclictest2159781-21apt-get19:45:101
2146044992926,2cyclictest2240014-21kworker/u8:1+flush-259:022:25:153
2146044992925,3cyclictest2240014-21kworker/u8:1+flush-259:022:45:203
2146039992922,5cyclictest2224565-21diskstats21:35:142
2146044992825,2cyclictest2311746-21kworker/u8:3+events_unbound23:20:173
2146044992825,2cyclictest2240014-21kworker/u8:1+flush-259:022:30:153
2146044992824,3cyclictest2240014-21kworker/u8:1+flush-259:023:05:013
2146044992824,3cyclictest2240014-21kworker/u8:1+flush-259:022:20:283
2146039992819,4cyclictest2399396-21ntpq00:20:222
2146044992723,3cyclictest2379693-21kworker/u8:3+events_unbound00:25:213
2146044992722,4cyclictest2411168-21cat00:35:013
2146036992721,4cyclictest2285379-21ntpq22:30:221
2146044992620,3cyclictest2164904-21kworker/u8:2+events_unbound21:10:203
2146039992620,4cyclictest2208257-21latency_hist21:20:012
2146036992623,2cyclictest2240014-21kworker/u8:1+events_unbound22:15:231
2146036992623,2cyclictest2230945-21kworker/u8:0+flush-259:021:50:101
2146036992622,3cyclictest2379693-21kworker/u8:3+flush-259:000:25:241
2146036992622,3cyclictest2159543-21kworker/u8:3+flush-259:020:00:001
2146044992522,2cyclictest2240014-21kworker/u8:1+flush-259:023:35:153
2146044992520,3cyclictest2125584-21kworker/u8:0+flush-259:019:45:233
2146034992522,2cyclictest2348836-21kworker/u8:2+events_unbound23:40:180
2146034992519,4cyclictest2159525-21latency_hist19:45:000
2146044992421,2cyclictest2164904-21kworker/u8:2+events_unbound20:15:183
2146036992421,2cyclictest2240014-21kworker/u8:1+flush-259:022:30:001
2146036992420,3cyclictest2164904-21kworker/u8:2+flush-259:021:25:241
2146036992419,3cyclictest2164904-21kworker/u8:2+flush-259:020:30:241
214603499240,22cyclictest1-21systemd21:16:290
2146044992320,2cyclictest2348836-21kworker/u8:2+flush-259:000:20:153
2146044992320,2cyclictest2230945-21kworker/u8:0+flush-259:021:45:203
2146044992320,2cyclictest2178229-21kworker/u8:3+events_unbound20:30:273
2146044992319,3cyclictest2311746-21kworker/u8:3+events_unbound23:10:163
2146044992319,3cyclictest2219011-21kworker/u8:4+flush-259:021:50:213
2146034992317,4cyclictest2230126-21diskstats21:40:130
2146044992219,2cyclictest2348836-21kworker/u8:2+events_unbound00:00:193
2146044992219,2cyclictest2250330-21kworker/u8:2+events_unbound22:00:213
2146044992219,2cyclictest2191104-21kworker/u8:3+events_unbound21:25:243
2146044992218,3cyclictest2348836-21kworker/u8:2+events_unbound23:50:233
2146044992218,3cyclictest2240014-21kworker/u8:1+events_unbound22:15:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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