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2026-01-15 - 05:49
[ 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 Thu Jan 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1268023212956,68sleep30-21swapper/319:09:353
151109621260,2sleep20-21swapper/222:55:172
126789828858,10sleep10-21swapper/119:07:561
126801028562,6sleep00-21swapper/019:09:240
126790428151,10sleep20-21swapper/219:08:012
1268190992522,1cyclictest0-21swapper/322:25:193
126819099241,16cyclictest1474950-21chrt22:20:363
1268190992219,1cyclictest0-21swapper/300:40:003
1268190992017,1cyclictest0-21swapper/320:55:213
1268190992017,1cyclictest0-21swapper/320:40:163
126819099201,14cyclictest0-21swapper/323:21:543
126819099198,7cyclictest1501372-21taskset22:49:133
126819099194,13cyclictest0-21swapper/323:55:003
126819099194,13cyclictest0-21swapper/323:55:003
1268190991911,4cyclictest13597412sleep320:35:123
126819099191,12cyclictest1490963-21taskset22:39:543
126819099187,7cyclictest1506093-21taskset22:50:213
126819099182,11cyclictest1301908-21taskset19:40:123
126819099182,10cyclictest1435577-21taskset21:45:173
1268190991815,1cyclictest0-21swapper/322:45:003
1268190991815,1cyclictest0-21swapper/319:55:133
1268190991815,1cyclictest0-21swapper/319:50:163
1268190991815,1cyclictest0-21swapper/319:35:173
1268190991814,2cyclictest0-21swapper/321:15:173
1268190991812,4cyclictest0-21swapper/300:10:123
1268190991811,5cyclictest0-21swapper/321:35:193
1268190991811,4cyclictest1559708-21turbostat23:45:003
126819099181,14cyclictest0-21swapper/320:00:113
126819099181,13cyclictest1549115-21taskset23:33:453
126819099181,13cyclictest0-21swapper/321:50:153
126819099181,13cyclictest0-21swapper/320:20:123
126819099181,13cyclictest0-21swapper/300:05:193
1268190991810,4cyclictest12914172sleep319:30:113
126819099180,14cyclictest0-21swapper/319:10:123
15482152170,2sleep10-21swapper/123:30:201
14166372171,4sleep01416690-21modprobe21:25:190
126819099178,6cyclictest1280671-21turbostat19:20:003
1268190991714,1cyclictest0-21swapper/323:10:113
1268190991714,1cyclictest0-21swapper/322:30:153
1268190991714,1cyclictest0-21swapper/300:00:003
1268190991713,2cyclictest0-21swapper/321:07:463
126819099171,13cyclictest0-21swapper/322:15:113
126819099171,12cyclictest1512496-21chrt23:00:113
126819099171,12cyclictest1444120-21chrt21:55:113
126819099171,12cyclictest0-21swapper/321:40:153
126819099171,12cyclictest0-21swapper/321:40:143
126819099171,10cyclictest1542814-21taskset23:25:163
15639102161,10sleep01563951-21ntpq23:45:170
14961832160,1sleep10-21swapper/122:44:471
14443792161,3sleep01444478-21fschecks_time21:55:130
1268190991613,1cyclictest0-21swapper/323:45:133
1268190991613,1cyclictest0-21swapper/321:10:193
1268190991613,1cyclictest0-21swapper/320:05:213
1268190991613,1cyclictest0-21swapper/300:30:013
1268190991612,2cyclictest0-21swapper/322:05:123
126819099161,11cyclictest1533495-21sleep23:20:003
126819099161,11cyclictest0-21swapper/320:25:153
126819099161,10cyclictest1579495-21taskset00:00:153
126819099161,10cyclictest1375286-21taskset20:45:253
126819099160,14cyclictest0-21swapper/320:10:103
126819099160,13cyclictest0-21swapper/323:05:113
126819099160,13cyclictest0-21swapper/322:55:173
126819099160,13cyclictest0-21swapper/320:15:263
126819099160,12cyclictest1554480-21turbostat23:40:003
15481652151,9sleep01548213-21ntpq23:30:190
13466652151,4sleep01347880-21memory20:20:170
126819099151,9cyclictest1596838-21taskset00:20:073
126819099151,9cyclictest1464496-21taskset22:11:103
126819099151,9cyclictest1453373-21taskset22:00:203
126819099151,9cyclictest1422465-21taskset21:30:343
126819099151,9cyclictest1380669-21taskset20:50:533
126819099151,3cyclictest0-21swapper/319:45:123
126819099151,2cyclictest0-21swapper/321:00:283
1268190991512,1cyclictest0-21swapper/320:30:173
126819099151,12cyclictest0-21swapper/321:20:163
126819099151,11cyclictest1417638-21turbostat21:30:003
126819099151,10cyclictest1281441-21chrt19:20:123
126819099150,12cyclictest0-21swapper/300:30:173
126819099150,12cyclictest0-21swapper/300:15:123
15860892141,8sleep11586118-21perf00:10:001
15482682141,8sleep21548324-21ntp_states23:30:212
15395342141,8sleep01539954-21cat23:25:140
15004402141,4sleep21500493-21ntpq22:45:202
14127932141,8sleep11412916-21diskstats21:25:111
14021392141,2sleep00-21swapper/021:15:120
126819099140,12cyclictest0-21swapper/319:25:183
15707052131,7sleep21570727-21fschecks_count23:55:142
15269642131,8sleep01527012-21ntpq23:10:190
15019712131,7sleep01501990-21apt-get22:50:100
14388492131,8sleep21438868-21cpu21:50:102
14288172131,2sleep10-21swapper/121:40:151
14288172131,2sleep10-21swapper/121:40:151
13917102131,8sleep21391767-21cpuspeed_turbos21:05:132
13695172134,5sleep11369528-21cat20:40:231
13350782131,8sleep00-21swapper/020:10:150
15776592121,7sleep21577880-21kthreadcore00:00:152
15130342121,7sleep21513860-21kthreadcore23:00:152
15105932121,7sleep11511095-21needreboot22:55:171
14271072121,7sleep01427155-21/usr/sbin/munin21:35:210
14221222121,7sleep21422311-21cat21:30:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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