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2026-02-23 - 05:25
[ 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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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 Mon Feb 23, 2026 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3001583213055,70sleep30-21swapper/319:06:133
309760421230,2sleep10-21swapper/120:40:131
300179728351,12sleep20-21swapper/219:08:522
300177128159,12sleep10-21swapper/119:08:311
300183827749,14sleep00-21swapper/019:09:220
300198699590,45cyclictest0-21swapper/321:56:593
32467492580,1sleep10-21swapper/122:18:391
300198699510,48cyclictest0-21swapper/322:29:213
3001986995043,1cyclictest0-21swapper/300:29:413
3001986994816,24cyclictest32217132sleep322:04:503
3001986994740,1cyclictest0-21swapper/323:51:193
300198699470,21cyclictest0-21swapper/300:03:483
3001986994541,2cyclictest0-21swapper/321:52:393
3001986994541,2cyclictest0-21swapper/321:52:383
300198699450,14cyclictest0-21swapper/322:56:323
300198699440,24cyclictest0-21swapper/323:40:523
3001986994329,1cyclictest0-21swapper/323:48:523
300198699431,15cyclictest0-21swapper/321:41:003
300198699422,36cyclictest0-21swapper/323:15:583
300198699420,40cyclictest0-21swapper/322:22:573
300198699420,17cyclictest0-21swapper/321:10:513
300198699410,34cyclictest0-21swapper/321:18:303
300198699410,28cyclictest0-21swapper/322:37:593
300198699410,21cyclictest63750irq/124-enp1s0-TxRx-022:31:523
300198699410,16cyclictest0-21swapper/300:08:363
3001986994038,1cyclictest0-21swapper/322:10:103
3001986994036,2cyclictest0-21swapper/320:35:193
300198699401,27cyclictest32991002sleep322:49:393
300198699390,23cyclictest0-21swapper/300:12:373
300198699390,20cyclictest0-21swapper/300:24:403
300198699390,12cyclictest0-21swapper/323:10:523
300198699380,29cyclictest0-21swapper/322:16:183
300198699380,21cyclictest0-21swapper/300:37:323
300198699370,10cyclictest0-21swapper/300:30:063
33160462360,1sleep10-21swapper/122:59:351
300198699366,18cyclictest0-21swapper/323:02:073
300198699363,19cyclictest0-21swapper/322:08:123
300198699360,19cyclictest0-21swapper/319:23:223
31013282351,4sleep03101381-21ntpq20:40:210
3001986993428,1cyclictest0-21swapper/322:51:003
300198699341,21cyclictest0-21swapper/320:34:513
300198699334,16cyclictest63750irq/124-enp1s0-TxRx-022:40:353
300198699321,21cyclictest34509512sleep300:16:303
300198699320,25cyclictest31066982sleep320:45:253
300198699320,22cyclictest63750irq/124-enp1s0-TxRx-021:21:353
33840402311,21sleep23127929-21diskmemload23:38:252
300198699311,7cyclictest0-21swapper/319:40:013
300198699310,15cyclictest0-21swapper/323:06:223
300198699303,18cyclictest0-21swapper/320:55:203
300198699300,9cyclictest0-21swapper/320:51:213
31956532290,1sleep10-21swapper/121:49:071
3001986992826,1cyclictest0-21swapper/321:25:233
300198699280,17cyclictest0-21swapper/320:15:013
300198699270,6cyclictest0-21swapper/323:26:263
300198699270,21cyclictest63750irq/124-enp1s0-TxRx-021:39:233
300198699270,12cyclictest0-21swapper/320:40:213
300198699270,10cyclictest0-21swapper/321:32:253
33557332262,8sleep13355987-21users23:20:271
300198699266,13cyclictest0-21swapper/323:35:573
300198699261,9cyclictest0-21swapper/321:05:103
3001986992618,1cyclictest0-21swapper/319:10:183
31337892250,1sleep00-21swapper/021:11:300
300198699255,8cyclictest0-21swapper/323:22:133
300198699250,18cyclictest0-21swapper/323:56:263
3001986992421,1cyclictest0-21swapper/320:15:163
3001986992417,1cyclictest0-21swapper/321:00:173
300198699240,12cyclictest63750irq/124-enp1s0-TxRx-021:45:103
33685022231,7sleep03127929-21diskmemload23:30:050
300198699235,9cyclictest30085622sleep319:15:023
300198699235,11cyclictest0-21swapper/323:30:033
300198699230,10cyclictest0-21swapper/319:50:113
300198699221,9cyclictest0-21swapper/320:25:123
3001986992219,1cyclictest0-21swapper/319:30:023
34696422210,1sleep10-21swapper/100:28:341
33811072201,6sleep13381158-21ssh23:35:191
32626832200,1sleep00-21swapper/022:26:430
300198699200,8cyclictest0-21swapper/319:55:133
33313482191,3sleep10-21swapper/123:06:531
34101782180,1sleep20-21swapper/223:54:042
33670602181,2sleep20-21swapper/223:28:312
33248562181,3sleep20-21swapper/223:04:582
32304192181,2sleep00-21swapper/022:09:390
300198699189,6cyclictest3066203-21turbostat20:10:003
300198699180,7cyclictest0-21swapper/320:00:143
34770922171,2sleep10-21swapper/100:32:081
33940862171,3sleep20-21swapper/223:45:012
33908282170,1sleep00-21swapper/023:41:040
33147762171,5sleep03127929-21diskmemload22:57:530
300198699172,5cyclictest0-21swapper/320:20:033
34816512160,4sleep0221rcuc/000:35:170
34363012160,2sleep20-21swapper/200:09:442
34176242161,2sleep10-21swapper/123:57:401
33567342161,10sleep03127929-21diskmemload23:21:260
32542752161,3sleep23127929-21diskmemload22:22:162
32188512160,1sleep10-21swapper/122:01:031
31862352161,2sleep10-21swapper/121:42:591
31764002160,1sleep20-21swapper/221:36:172
300198699161,13cyclictest0-21swapper/319:35:113
300198699161,10cyclictest0-21swapper/319:25:113
34506262151,8sleep23127929-21diskmemload00:16:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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