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2026-01-18 - 17:28
[ 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 #3, slot #3

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 rack3slot3s.osadl.org (updated Sun Jan 18, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1950892212560,61sleep30-21swapper/307:08:463
195088628362,11sleep20-21swapper/207:08:412
195082128360,6sleep00-21swapper/007:07:510
195069328057,9sleep10-21swapper/107:06:111
195113999281,22cyclictest2262522-21turbostat12:15:003
1951139992523,1cyclictest0-21swapper/310:50:113
1951139992522,1cyclictest0-21swapper/311:00:003
1951139992421,1cyclictest0-21swapper/307:37:573
195113999231,18cyclictest2099257-21taskset09:40:153
195113999231,18cyclictest0-21swapper/311:27:273
1951139992219,1cyclictest0-21swapper/310:30:003
195113999221,17cyclictest2167084-21taskset10:44:363
1951139992118,1cyclictest0-21swapper/308:20:013
1951139992118,1cyclictest0-21swapper/308:00:103
1951139992017,1cyclictest0-21swapper/310:35:273
1951139992017,1cyclictest0-21swapper/309:56:573
1951139992017,1cyclictest0-21swapper/309:45:113
1951139992017,1cyclictest0-21swapper/308:15:003
1951139992016,2cyclictest0-21swapper/309:05:173
195113999192,10cyclictest2204739-21taskset11:20:113
1951139991916,1cyclictest0-21swapper/309:20:153
195113999191,14cyclictest2236230-21turbostat11:50:003
195113999191,13cyclictest2002895-21chrt08:05:123
195113999191,13cyclictest2002895-21chrt08:05:123
195113999190,12cyclictest0-21swapper/307:30:203
1951139991815,1cyclictest0-21swapper/311:15:143
1951139991815,1cyclictest0-21swapper/309:01:293
1951139991815,1cyclictest0-21swapper/308:45:153
1951139991815,1cyclictest0-21swapper/308:30:183
1951139991815,1cyclictest0-21swapper/308:20:003
1951139991814,1cyclictest0-21swapper/307:50:003
195113999181,3cyclictest0-21swapper/309:34:013
195113999181,14cyclictest0-21swapper/311:50:103
1951139991810,5cyclictest67150irq/132-enp1s0-TxRx-312:00:003
21991852171,11sleep22199341-21cstates11:15:102
21518732171,11sleep02151909-21diskstats10:30:120
195113999176,6cyclictest2252289-21taskset12:05:133
1951139991715,1cyclictest0-21swapper/307:50:123
1951139991714,1cyclictest0-21swapper/307:25:153
195113999171,3cyclictest0-21swapper/310:04:403
1951139991713,2cyclictest0-21swapper/308:55:123
195113999171,12cyclictest2273578-21chrt12:25:123
195113999171,12cyclictest2220717-21chrt11:35:143
195113999171,12cyclictest2145845-21turbostat10:25:003
195113999171,12cyclictest2067259-21chrt09:10:093
195113999171,12cyclictest2067259-21chrt09:10:093
195113999171,12cyclictest0-21swapper/307:20:103
195113999171,11cyclictest2039785-21chrt08:40:113
195113999170,14cyclictest0-21swapper/307:40:163
195113999164,10cyclictest0-21swapper/307:10:183
195113999162,10cyclictest2129139-21taskset10:05:203
195113999161,9cyclictest2284004-21taskset12:35:053
195113999161,9cyclictest2215174-21taskset11:30:013
195113999161,9cyclictest2072489-21taskset09:15:063
195113999161,8cyclictest228-1kworker/3:1H+kblockd11:10:003
1951139991613,1cyclictest0-21swapper/307:15:033
1951139991611,3cyclictest0-21swapper/311:40:113
195113999161,12cyclictest0-21swapper/312:15:123
195113999161,12cyclictest0-21swapper/308:25:063
195113999161,10cyclictest2050859-21chrt08:54:463
195113999161,10cyclictest1997350-21taskset07:59:393
195113999160,14cyclictest0-21swapper/308:35:113
195113999160,13cyclictest0-21swapper/312:20:103
195113999160,13cyclictest0-21swapper/310:45:213
195113999160,13cyclictest0-21swapper/310:15:133
195113999160,11cyclictest2151641-21chrt10:30:093
195113999160,10cyclictest2283024-21taskset12:30:213
195113999160,10cyclictest2251680-21taskset12:00:513
21359002151,10sleep22135940-21cut10:15:142
20193092150,1sleep10-21swapper/108:20:141
195113999151,2cyclictest0-21swapper/311:12:253
195113999150,12cyclictest0-21swapper/311:00:173
195113999150,12cyclictest0-21swapper/310:10:133
195113999150,12cyclictest0-21swapper/309:35:123
195113999150,12cyclictest0-21swapper/309:25:113
22405642141,8sleep12240618-21ntpq11:50:201
22262662141,5sleep12226458-21cut11:40:141
20823322140,2sleep20-21swapper/209:20:352
20015922140,9sleep22001639-21ntpq08:00:152
19844882141,9sleep11984746-21grep07:35:251
22889782131,8sleep02289156-21date12:40:000
22276942131,7sleep02228031-21kthreadcore11:40:170
22176522131,8sleep22215187-21/usr/sbin/munin11:30:172
21047432131,7sleep12106056-21kthreadcore09:45:161
20960912130,2sleep10-21swapper/109:35:161
20722362131,7sleep02072265-21perf09:15:000
20722362131,7sleep02072265-21perf09:15:000
195113999131,8cyclictest2109376-21taskset09:50:053
22071992121,7sleep02204718-21/usr/sbin/munin11:20:170
21944792120,8sleep22195154-21cut11:10:172
21203832121,7sleep12120586-21kthreadcore10:00:141
21103292123,5sleep02112032-21kthreadcore09:50:150
20803512121,7sleep12077712-21/usr/sbin/munin09:20:181
19563242121,6sleep11956963-21ntpq07:15:011
22571402110,1sleep10-21swapper/112:08:511
22139542112,5sleep22214003-21ntpq11:25:202
22047172111,4sleep22204736-21apt-get11:20:112
21886472111,5sleep12188666-21apt-get11:05:111
21427992111,2sleep00-21swapper/010:20:170
21205892111,5sleep22122267-21cut10:00:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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