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2026-02-28 - 03:22
[ 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 #8

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 rackeslot8s.osadl.org (updated Fri Feb 27, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28494349912180,1214cyclictest28495892sleep307:10:023
28494349911460,1142cyclictest31749422sleep310:54:563
28494349911261,1120cyclictest3060801-21sleep09:45:003
28494349911171,1112cyclictest32893832sleep312:04:573
2849434994230,418cyclictest2914924-21turbostat08:04:563
2849434994010,398cyclictest2971941-21turbostat08:49:543
2849434993410,337cyclictest3224357-21turbostat11:29:553
284943499188,7cyclictest2946281-21turbostat08:24:593
2849434991815,1cyclictest0-21swapper/312:40:013
284943499174,9cyclictest2876578-21turbostat07:30:003
284943499170,13cyclictest32149252sleep311:17:243
32323612161,5sleep03232375-21cron11:30:000
284943499165,7cyclictest30625662sleep309:45:173
2849434991613,1cyclictest0-21swapper/308:10:133
2849434991613,1cyclictest0-21swapper/308:08:383
284943499161,11cyclictest3280855-21taskset11:59:123
173198160,4rtkit-daemon3074925-21awk09:50:222
284943499156,6cyclictest3232391-21turbostat11:34:553
284943499156,6cyclictest3232391-21turbostat11:34:553
284943499155,7cyclictest31485212sleep310:35:373
2849434991513,1cyclictest0-21swapper/311:39:393
2849434991513,0cyclictest0-21swapper/309:29:553
2849434991513,0cyclictest0-21swapper/307:35:003
2849434991512,1cyclictest0-21swapper/312:15:413
2849434991512,1cyclictest0-21swapper/311:10:253
2849434991512,1cyclictest0-21swapper/310:49:333
284943499151,11cyclictest3322412-21taskset12:25:123
284943499151,11cyclictest3190933-21taskset11:03:333
284943499151,11cyclictest3126092-21turbostat10:25:003
284943499151,11cyclictest2984471-21turbostat08:55:003
32559422141,3sleep00-21swapper/011:43:060
284943499145,6cyclictest33050512sleep312:13:433
284943499145,6cyclictest2952462-21taskset08:25:463
284943499144,7cyclictest31923592sleep311:05:153
284943499143,8cyclictest3093655-21taskset10:05:103
284943499143,8cyclictest0-21swapper/310:03:523
284943499141,9cyclictest28579422sleep307:15:123
2849434991413,0cyclictest0-21swapper/312:06:183
2849434991412,1cyclictest0-21swapper/311:21:403
2849434991412,1cyclictest0-21swapper/309:32:253
2849434991412,1cyclictest0-21swapper/309:00:363
2849434991412,0cyclictest0-21swapper/310:31:223
2849434991411,1cyclictest0-21swapper/309:13:403
2849434991411,1cyclictest0-21swapper/308:36:063
284943499141,10cyclictest3330517-21taskset12:30:083
284943499141,10cyclictest3255470-21chrt11:42:003
284943499141,10cyclictest3012613-21taskset09:15:133
284943499141,10cyclictest2971876-21chrt08:44:293
284943499140,11cyclictest3104201-21chrt10:10:163
284943499135,6cyclictest30755282sleep309:51:423
284943499134,7cyclictest2990718-21taskset08:56:433
284943499134,6cyclictest29975332sleep309:05:103
284943499131,9cyclictest3314108-21taskset12:20:033
284943499131,9cyclictest2905074-21chrt07:50:163
284943499131,9cyclictest2889572-21chrt07:37:103
284943499131,9cyclictest2864229-21chrt07:20:073
2849434991312,0cyclictest0-21swapper/309:20:283
2849434991311,1cyclictest0-21swapper/310:56:513
2849434991311,1cyclictest0-21swapper/310:26:013
2849434991311,1cyclictest0-21swapper/310:17:073
284943499131,10cyclictest3264016-21chrt11:47:533
284943499131,10cyclictest3077291-21taskset09:55:003
2849434991310,1cyclictest0-21swapper/308:15:253
284943499130,10cyclictest3265205-21chrt11:50:013
284943499130,10cyclictest3044650-21taskset09:35:023
284943499130,10cyclictest2902051-21chrt07:46:163
28432972131,6sleep02843330-21apt-get07:05:110
33386822121,8sleep03338836-21/usr/sbin/munin12:35:120
31427312120,1sleep23142780-21/usr/sbin/munin10:35:122
30438262120,1sleep10-21swapper/109:33:401
284943499121,9cyclictest2912437-21taskset07:55:173
284943499120,9cyclictest3156114-21taskset10:40:213
284943499120,9cyclictest2958730-21chrt08:30:233
284943499120,10cyclictest2896124-21turbostat07:45:003
173198120,7rtkit-daemon3311555-21timerwakeupswit12:15:230
173198120,7rtkit-daemon3027916-21ssh09:24:330
32979982111,3sleep23298204-21hddtemp_smartct12:10:132
29849652111,2sleep00-21swapper/008:55:130
173198110,6rtkit-daemon3199880-21cut11:10:000
173198110,4rtkit-daemon3303790-21ssh12:10:550
173198110,3rtkit-daemon2248891-21kworker/0:1+kacpid10:08:200
31820602100,3sleep03182067-21sh10:57:390
31428952101,5sleep03143098-21hddtemp_smartct10:35:150
31195502104,4sleep03120651-21tr10:20:160
30661312100,7sleep13066278-21awk09:45:191
29469622100,7sleep22947020-21fschecks_count08:25:142
29212032101,5sleep02921206-21cron08:05:010
173198100,5rtkit-daemon3223115-21ssh11:22:220
173198100,4rtkit-daemon2855762-21munin-node09:26:490
173198100,4rtkit-daemon2811411-21munin-node07:13:171
173198100,3rtkit-daemon643-21snmpd10:18:520
173198100,2rtkit-daemon3003556-21diskmemload10:50:270
173198100,1rtkit-daemon0-21swapper/109:06:011
3330689291,6sleep13330851-21gltestperf12:30:111
3264192290,1sleep10-21swapper/111:48:171
3255593290,6sleep23255601-21ssh11:42:162
3239460290,7sleep03239467-21sh11:32:410
3239460290,7sleep03239467-21sh11:32:400
3185250290,6sleep23186926-21cut11:00:162
3182356290,1sleep13003556-21diskmemload10:58:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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