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2026-01-20 - 14:23
[ 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 Tue Jan 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1824436212153,63sleep30-21swapper/307:09:073
182428328066,9sleep10-21swapper/107:07:081
182416727851,19sleep00-21swapper/007:05:380
182449727762,9sleep20-21swapper/207:09:502
18906512290,4sleep0221rcuc/008:10:110
1824645992623,1cyclictest0-21swapper/310:45:223
182464599241,19cyclictest2026908-21taskset10:20:113
1824645992320,1cyclictest0-21swapper/311:00:193
1824645992319,2cyclictest0-21swapper/309:39:593
1824645992219,1cyclictest0-21swapper/309:20:213
1824645992219,1cyclictest0-21swapper/307:40:013
1824645992118,1cyclictest0-21swapper/311:15:213
20955412201,10sleep12095578-21grep11:25:161
182464599202,12cyclictest2042680-21taskset10:35:113
1824645992017,1cyclictest0-21swapper/311:20:143
1824645992017,1cyclictest0-21swapper/308:20:163
1824645992010,7cyclictest1952956-21taskset09:09:423
182464599192,11cyclictest2121517-21taskset11:50:103
182464599192,11cyclictest1826512-21taskset07:10:143
1824645991917,1cyclictest0-21swapper/312:00:163
1824645991916,1cyclictest0-21swapper/310:05:003
182464599191,14cyclictest0-21swapper/307:30:113
182464599185,1cyclictest0-21swapper/312:05:263
1824645991815,1cyclictest0-21swapper/311:40:163
1824645991815,1cyclictest0-21swapper/311:35:153
1824645991815,1cyclictest0-21swapper/309:25:153
1824645991815,1cyclictest0-21swapper/308:55:173
1824645991815,1cyclictest0-21swapper/308:50:163
1824645991815,1cyclictest0-21swapper/308:50:163
182464599181,13cyclictest1995246-21turbostat09:50:003
182464599181,10cyclictest1985054-21taskset09:40:123
182464599180,14cyclictest2000370-21taskset09:53:513
182464599180,14cyclictest0-21swapper/308:49:193
1824645991715,1cyclictest0-21swapper/309:10:173
1824645991714,1cyclictest0-21swapper/310:30:113
1824645991714,1cyclictest0-21swapper/307:50:173
1824645991714,1cyclictest0-21swapper/307:20:243
182464599171,3cyclictest0-21swapper/309:03:183
1824645991713,2cyclictest0-21swapper/312:10:163
182464599171,13cyclictest0-21swapper/307:55:203
182464599171,12cyclictest2105573-21turbostat11:35:013
182464599171,12cyclictest2037177-21turbostat10:30:013
182464599171,12cyclictest2021650-21chrt10:15:113
182464599171,12cyclictest1853595-21taskset07:35:103
182464599171,12cyclictest0-21swapper/311:45:223
182464599171,12cyclictest0-21swapper/308:30:123
182464599170,14cyclictest0-21swapper/310:50:113
19530992161,10sleep01953130-21perf09:10:000
182464599161,9cyclictest2169072-21taskset12:35:073
182464599161,9cyclictest2148064-21taskset12:15:073
182464599161,3cyclictest0-21swapper/312:25:123
1824645991613,1cyclictest0-21swapper/312:30:163
1824645991613,1cyclictest0-21swapper/309:30:153
1824645991611,3cyclictest0-21swapper/310:58:213
182464599161,11cyclictest1890469-21taskset08:10:103
182464599161,11cyclictest0-21swapper/312:20:113
182464599160,13cyclictest0-21swapper/310:10:203
182464599160,13cyclictest0-21swapper/310:05:193
182464599160,13cyclictest0-21swapper/308:25:163
182464599160,13cyclictest0-21swapper/308:07:233
182464599160,12cyclictest0-21swapper/311:25:133
20783692151,9sleep02078431-21sed11:05:280
20536492151,3sleep00-21swapper/010:45:140
20361802151,4sleep12036230-21ntpq10:25:201
182464599151,9cyclictest2131422-21taskset11:56:083
1824645991513,1cyclictest0-21swapper/308:35:163
1824645991512,1cyclictest0-21swapper/309:55:153
1824645991512,1cyclictest0-21swapper/307:15:213
182464599150,13cyclictest0-21swapper/311:05:153
182464599150,13cyclictest0-21swapper/309:15:183
182464599150,12cyclictest0-21swapper/311:10:153
182464599150,12cyclictest0-21swapper/307:45:133
182464599150,12cyclictest0-21swapper/307:45:123
182464599150,12cyclictest0-21swapper/307:25:183
182464599150,11cyclictest0-21swapper/308:15:143
21099442141,9sleep12110068-21/usr/sbin/munin11:35:221
182464599141,8cyclictest1883199-21taskset08:00:163
182464599141,10cyclictest1926806-21sleep08:45:003
20541852131,7sleep12055134-21kthreadcore10:45:161
20374492131,8sleep02037694-21expr10:30:120
20284832131,8sleep02030269-21grep10:20:180
18904472131,6sleep21890466-21apt-get08:10:102
182464599130,11cyclictest0-21swapper/310:40:083
21425532121,5sleep02142602-21munin-run12:10:000
21214952122,4sleep22121514-21apt-get11:50:102
20894792121,6sleep22089508-21munin-run11:19:592
20255872120,1sleep20-21swapper/210:15:192
19955142121,7sleep21995747-21cstates09:50:142
19256902121,5sleep21925778-21ntpq08:40:202
18685522121,7sleep01868574-21mailstats07:45:240
18685522121,7sleep01868574-21mailstats07:45:230
18447712121,7sleep11846575-21grep07:25:161
20887862112,5sleep02088986-21sed11:15:260
20738202111,5sleep12073869-21munin-run11:05:001
20056932111,5sleep22005765-21munin-run10:00:002
20007182111,4sleep12000737-21apt-get09:55:101
18839042111,5sleep01883996-21ntpq08:00:180
18752222111,5sleep21875338-21irqstats07:55:152
18645562111,6sleep21864640-21fschecks_time07:45:132
18645562111,6sleep21864640-21fschecks_time07:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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