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2026-01-28 - 21:16
[ 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 all highest latencies:
System rack9slot4s (updated Wed Jan 28, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45689912851241,32cyclictest5208-21smartctl07:25:160
45699912041176,23cyclictest27992-21smartctl09:25:171
45699911611131,26cyclictest4990-21df07:25:131
42762499454,31sleep10-21swapper/107:22:351
41222458369,74sleep00-21swapper/007:20:580
456899235212,19cyclictest27994-21ssh09:25:170
3126721000,8sleep0456899cyclictest08:30:280
9972830,8sleep0456899cyclictest12:53:270
325692820,5sleep032562-21fschecks_time11:10:160
4569996311,12cyclictest0-21swapper/111:54:381
456999621,27cyclictest1968-21lldpad10:08:241
4569996011,6cyclictest0-21swapper/108:06:431
456999583,9cyclictest5733-21ntp_states09:35:241
456999582,7cyclictest11202-21df11:55:121
156202580,4sleep1456999cyclictest07:50:211
4569995714,5cyclictest32066-21sh12:16:111
456999571,26cyclictest1968-21lldpad11:20:561
456999565,20cyclictest0-21swapper/112:01:341
456999563,5cyclictest0-21swapper/109:10:421
4569995514,6cyclictest25985-21runrttasks08:18:271
456999549,8cyclictest3302-21runrttasks10:41:221
456999549,4cyclictest40550irq/92-i91512:10:151
456999544,8cyclictest9853-21memory07:35:201
4569995411,3cyclictest0-21swapper/111:02:031
456999539,4cyclictest0-21swapper/110:49:261
456999533,15cyclictest21496-21ntp_states12:05:231
456999532,14cyclictest287042rm11:05:301
4569995316,5cyclictest16809-21memory10:20:211
456999531,5cyclictest0-21swapper/111:45:361
456999531,30cyclictest0-21swapper/109:02:161
456999531,30cyclictest0-21swapper/108:51:561
456999528,5cyclictest40550irq/92-i91510:10:111
4569995220,6cyclictest14337-21ssh10:50:431
4569995214,7cyclictest1959-21runrttasks09:31:281
456999521,30cyclictest0-21swapper/112:33:361
456999521,14cyclictest24080-21ssh10:28:021
456999515,24cyclictest0-21swapper/109:58:011
456999513,5cyclictest18329-21sh10:55:201
4569995125,5cyclictest0-21swapper/110:30:561
456999508,13cyclictest40550irq/92-i91510:39:231
456999501,28cyclictest0-21swapper/112:38:161
4569994923,5cyclictest0-21swapper/112:24:551
456999489,4cyclictest40550irq/92-i91511:10:131
456999481,7cyclictest17896-21ssh09:48:191
456999479,9cyclictest14821-21fschecks_time11:25:161
456999471,23cyclictest6052-21sed11:15:301
456999462,21cyclictest0-21swapper/108:29:221
456999461,7cyclictest25136-21ssh12:43:131
456999452,7cyclictest1563-21ssh12:54:311
456999441,10cyclictest12107-21ssh10:15:231
190882441,37sleep019110-21fschecks_count08:00:150
456999431,7cyclictest32058-21ssh10:02:501
456999431,7cyclictest29179-21sh12:48:041
456999422,7cyclictest11814-21ssh12:29:471
456899421,13cyclictest26285-21cat12:45:010
201092427,31sleep020194-21grep09:50:230
224952400,8sleep0456899cyclictest11:00:110
316002390,4sleep041ktimersoftd/010:35:250
4569993823,5cyclictest22-21ksoftirqd/108:30:161
456899386,13cyclictest3179-21ssh12:20:170
17432381,32sleep00-21swapper/012:19:180
4568993728,5cyclictest0-21swapper/009:47:550
4568993716,7cyclictest0-21swapper/010:54:060
99042361,31sleep09922-21sh12:27:000
84212360,3sleep0111rcuc/011:51:450
4569993616,5cyclictest22-21ksoftirqd/109:42:051
456899362,30cyclictest0-21swapper/010:32:350
4569993515,5cyclictest22-21ksoftirqd/111:42:361
456899353,30cyclictest0-21swapper/007:32:150
4568993516,8cyclictest3-21ksoftirqd/009:10:310
456899351,24cyclictest0-21swapper/012:49:190
456899351,14cyclictest22146-21cron11:00:000
4568993511,12cyclictest9965-21fschecks_time11:20:150
456999348,11cyclictest22-21ksoftirqd/111:33:331
456999345,5cyclictest81rcu_preempt09:50:171
4569993426,6cyclictest0-21swapper/109:20:151
4568993414,6cyclictest16980-21ntp_states10:20:240
456899341,21cyclictest5755-21ssh09:35:260
18912341,29sleep01978-21awk08:40:180
4569993326,5cyclictest0-21swapper/108:57:361
4569993317,5cyclictest22-21ksoftirqd/107:56:571
4569993317,5cyclictest22-21ksoftirqd/107:56:571
456999331,30cyclictest0-21swapper/107:41:171
456899336,4cyclictest81rcu_preempt11:44:430
456899333,15cyclictest26917-21iostat_ios08:20:210
456899332,28cyclictest0-21swapper/011:49:160
4568993314,5cyclictest12102-21ntp_states10:15:230
456999322,4cyclictest81rcu_preempt09:15:481
456999322,4cyclictest81rcu_preempt09:15:481
456999321,28cyclictest0-21swapper/108:40:151
456899323,16cyclictest21836-21ntp_states10:25:250
456899322,15cyclictest17699-21irqstats12:35:200
4568993215,14cyclictest3-21ksoftirqd/010:03:470
4568993213,6cyclictest6593-21df10:10:110
4568993213,6cyclictest10293-21users09:00:290
456899321,19cyclictest26636-21ssh11:37:170
456899321,15cyclictest4982-21ssh10:41:110
287022320,8sleep028704-21rm11:05:290
160792321,5sleep00-21swapper/012:34:020
13252320,28sleep01335-21ssh10:05:090
132192321,4sleep013230-21ssh09:43:340
456899317,10cyclictest1150-21seq08:39:300
456899313,4cyclictest81rcu_preempt11:58:380
456899312,11cyclictest0-21swapper/011:32:270
456899311,4cyclictest81rcu_preempt12:11:020
4568993113,6cyclictest14839-21perl11:25:160
4568993112,6cyclictest21932-21users08:05:280
456899311,16cyclictest13948-21taskset07:45:230
266302312,9sleep10-21swapper/111:37:171
193162311,5sleep00-21swapper/009:15:410
193162311,5sleep00-21swapper/009:15:410
456999304,5cyclictest81rcu_preempt09:08:461
4569993014,5cyclictest22-21ksoftirqd/108:46:071
456899308,6cyclictest28914-21ls08:25:210
456899306,5cyclictest81rcu_preempt09:55:160
4568993023,5cyclictest0-21swapper/008:45:560
456899302,18cyclictest0-21swapper/012:05:250
456899301,4cyclictest81rcu_preempt10:49:170
456899301,4cyclictest81rcu_preempt08:59:360
4568993013,5cyclictest778-21ntp_states09:30:240
4568993012,6cyclictest23807-21users08:10:290
456899301,25cyclictest16684-21/usr/sbin/munin12:00:240
456899301,16cyclictest7752-21ssh11:17:550
4568993011,4cyclictest15256-21cstates07:50:140
4568993010,4cyclictest22677-21ssh09:20:120
4568992911,6cyclictest11504-21irqstats09:05:190
456899291,14cyclictest11178-21runrttasks07:40:120
105632291,5sleep00-21swapper/007:36:470
456899281,14cyclictest6273-21smartctl-wrappe08:50:260
456999271,8cyclictest13148-21/usr/sbin/munin07:45:231
456999271,4cyclictest81rcu_preempt08:14:201
4568992719,5cyclictest24499-21aten_r4power_po08:15:100
456999264,4cyclictest81rcu_preempt08:38:261
4569992616,6cyclictest275772sleep108:20:301
456899267,15cyclictest182022sleep007:55:470
456899267,15cyclictest182022sleep007:55:470
456999258,5cyclictest81rcu_preempt07:35:001
456999243,4cyclictest81rcu_preempt08:04:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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