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2026-01-19 - 11:02
[ 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 #9, 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.
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 376 highest latencies:
System rack9slot4s (updated Mon Jan 19, 2026 00:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303379912641225,33cyclictest7507-21users21:10:311
303379911961185,8cyclictest0-21swapper/119:25:131
303359911911147,31cyclictest30776-21diskstats19:25:140
302092736640,30sleep00-21swapper/019:24:130
285672533482,31sleep10-21swapper/119:20:041
303359911088,19cyclictest0-21swapper/021:10:300
222402940,8sleep13033799cyclictest00:13:271
3033799824,42cyclictest2984-21diskstats23:20:141
245642810,8sleep03033599cyclictest23:42:010
89592800,8sleep03033599cyclictest21:45:290
3033799781,43cyclictest14694-21iostat22:25:181
30337997811,34cyclictest11982-21sendmail_mailqu21:15:281
3033799751,43cyclictest23250-21aten_r4power_cu20:30:111
30337997511,32cyclictest0-21swapper/122:20:571
3033799741,40cyclictest5788-21diskmemload23:49:361
3033799741,40cyclictest5423-21ssh22:15:261
3033799737,36cyclictest13278-21ntpq23:30:241
3033799736,38cyclictest32374-21ssh21:36:271
3033799722,35cyclictest5788-21diskmemload22:13:401
3033799721,34cyclictest4671-21grep23:55:161
3033799717,32cyclictest40550irq/92-i91500:15:241
3033799712,38cyclictest5788-21diskmemload23:12:391
30337997115,33cyclictest2964-21ssh00:26:211
3033799701,7cyclictest32177-21chrt00:23:471
3033799701,7cyclictest25061-21ssh00:50:181
3033799701,5cyclictest1170-21tr22:45:121
3033799701,4cyclictest23511-21users23:40:311
3033799694,5cyclictest20934-21fschecks_time23:05:201
3033799691,7cyclictest26473-21chrt20:36:261
3033799691,7cyclictest26473-21chrt20:36:261
3033799691,7cyclictest17287-21chrt20:13:441
3033799681,7cyclictest22631-21chrt20:25:321
3033799681,5cyclictest17271-21taskset23:00:471
3033799671,5cyclictest30463-21chrt20:48:411
3033799662,42cyclictest23060-21/usr/sbin/munin22:00:231
3033799661,6cyclictest9982-21taskset23:26:581
3033799661,5cyclictest31074-21cron22:42:001
3033799661,32cyclictest4068-21seq19:38:101
3033799647,31cyclictest40550irq/92-i91522:55:281
3033799642,41cyclictest22011-21users21:25:301
3033799642,37cyclictest5788-21diskmemload00:37:161
3033799641,6cyclictest26398-21ntpq21:30:281
3033799641,35cyclictest13152-21ssh00:04:181
30337996410,39cyclictest3302-21runrttasks22:06:491
3033799632,44cyclictest0-21swapper/122:54:121
3033799632,40cyclictest6730-21ntp_states00:30:231
3033799632,39cyclictest14314-21hddtemp_smartct20:05:171
3033799631,40cyclictest12561-21aten_r4power_vo21:50:121
3033799626,35cyclictest4639-21ssh21:41:051
3033799621,7cyclictest17164-21awk21:20:291
3033799621,6cyclictest21155-21chrt22:31:421
3033799621,42cyclictest16579-21grep00:40:281
3033799621,41cyclictest4582-21egrep19:40:101
3033799613,36cyclictest14606-21iostat_ios00:05:211
3033799612,41cyclictest7805-21taskset19:47:511
3033799612,41cyclictest0-21swapper/123:54:411
3033799611,40cyclictest27184-21ssh22:38:231
3033799611,36cyclictest22370-21kworker/1:121:49:391
30337996110,25cyclictest0-21swapper/100:45:551
3033799602,33cyclictest31598-21users23:15:321
3033799601,39cyclictest20240-21chrt23:37:481
30337996010,32cyclictest20266-21ntp_kernel_err20:20:231
3033799593,41cyclictest2773-21iostat21:00:191
3033799592,4cyclictest0-21swapper/121:55:371
3033799592,39cyclictest31040-21df20:50:121
30337995916,26cyclictest22-21ksoftirqd/121:08:061
3033799591,46cyclictest9868-21taskset19:54:491
3033799588,30cyclictest1967-21seq19:31:591
3033799582,40cyclictest10337-21df_inode19:55:121
3033799582,37cyclictest27599-21iostat_ios20:40:211
235012570,2sleep00-21swapper/022:00:300
3033799562,34cyclictest18062-21hddtemp_smartct20:15:161
3033799561,6cyclictest980-21awk20:55:231
3033799533,30cyclictest12548-21irqstats20:00:201
92252470,23sleep03-21ksoftirqd/023:25:530
321042430,7sleep03033599cyclictest22:43:290
189282410,4sleep0111rcuc/021:55:440
3033599404,30cyclictest10972-21diskstats00:35:170
3033599386,28cyclictest0-21swapper/021:52:360
3033599381,17cyclictest0-21swapper/022:34:410
3033599372,31cyclictest0-21swapper/022:38:150
3033599371,32cyclictest30233-21ssh21:35:100
3033599371,14cyclictest0-21swapper/022:20:310
3033599364,4cyclictest81rcu_preempt00:08:320
30335993616,7cyclictest10359-21munin-run00:34:590
3033599354,4cyclictest81rcu_preempt23:02:570
3033599354,15cyclictest16667-21python00:40:280
3033599351,5cyclictest4564-21df_inode23:55:160
3033599351,20cyclictest27740-21ssh21:31:470
3033599343,4cyclictest81rcu_preempt00:21:530
3033599342,20cyclictest9844-21memory00:00:200
3033599341,30cyclictest0-21swapper/000:25:560
3033599341,17cyclictest8976-21grep19:50:210
263212340,5sleep023753-21kworker/0:000:51:460
241692341,4sleep024237-21iostat00:15:190
3033599338,13cyclictest4482-21fschecks_time21:05:160
3033599337,13cyclictest14863-21missed_timers22:25:210
3033599334,4cyclictest81rcu_preempt22:17:590
3033599334,4cyclictest81rcu_preempt00:12:230
3033599333,4cyclictest81rcu_preempt23:45:050
3033599333,4cyclictest81rcu_preempt21:22:530
3033599331,19cyclictest21519-21grep23:05:290
3033599331,16cyclictest0-21swapper/023:52:160
15802331,4sleep01633-21iostat22:45:190
63972321,4sleep06408-21ssh21:43:390
3033599324,4cyclictest81rcu_preempt22:07:280
3033599323,3cyclictest81rcu_preempt00:45:110
3033599321,4cyclictest81rcu_preempt19:58:360
3033599321,29cyclictest0-21swapper/021:04:550
3033599321,18cyclictest15346-21ssh23:32:440
3033599321,11cyclictest81rcu_preempt20:53:240
3033599321,11cyclictest0-21swapper/023:37:130
214992320,4sleep021490-21ssh21:25:240
78632311,5sleep00-21swapper/019:48:290
3033599315,13cyclictest12048-21timerwakeupswit22:55:280
3033599312,5cyclictest81rcu_preempt23:10:360
3033599312,4cyclictest81rcu_preempt23:22:240
30335993124,5cyclictest0-21swapper/020:05:550
3033599312,15cyclictest25704-21irqstats20:35:200
3033599312,15cyclictest25704-21irqstats20:35:200
3033599311,28cyclictest0-21swapper/020:47:350
3033599305,11cyclictest14286-21ssh21:18:200
3033599304,4cyclictest81rcu_preempt23:16:330
30335993019,6cyclictest23079-21munin-plugin-st20:30:000
3033599301,4cyclictest81rcu_preempt22:54:460
30335993013,5cyclictest32406-21http_loadtime22:10:180
135652301,5sleep00-21swapper/020:04:020
3033599292,14cyclictest18587-21python20:15:260
3033599292,13cyclictest3302-21runrttasks20:20:490
3033599292,13cyclictest28795-21ls20:45:010
3033599291,4cyclictest81rcu_preempt20:58:510
3033599291,14cyclictest1534-21awk19:30:280
248412291,5sleep00-21swapper/020:34:010
30335992810,6cyclictest3084-21if_eth019:35:170
3033599271,13cyclictest2329-21NetworkManager20:11:190
30335992710,13cyclictest0-21swapper/019:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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