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2026-01-22 - 09:35
[ 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 100 highest latencies:
System rack9slot4s (updated Thu Jan 22, 2026 00:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206779911851156,26cyclictest23547-21kworker/0:219:25:160
206789911661130,32cyclictest21036-21grep19:25:121
206789910871070,14cyclictest0-21swapper/121:15:161
202572610564,31sleep10-21swapper/119:21:091
204372564518,31sleep00-21swapper/019:23:010
2067799223213,6cyclictest1610-21grep21:15:150
72972840,8sleep12067899cyclictest00:08:221
129932810,3sleep1211ktimersoftd/100:48:501
227442790,5sleep022742-21cut23:50:250
238652780,4sleep041ktimersoftd/021:38:030
2067899461,15cyclictest0-21swapper/100:36:171
327552450,2sleep032751-21grep00:00:280
20677994511,6cyclictest97082rm23:37:010
2067899402,16cyclictest7561-21users21:20:291
2067899395,31cyclictest0-21swapper/123:19:361
2067799396,4cyclictest81rcu_preempt22:41:240
171982390,17sleep1211ktimersoftd/121:30:291
2067899371,12cyclictest81rcu_preempt22:35:151
296642360,6sleep129668-21timerandwakeup22:50:281
234322361,3sleep023506-21fschecks_count00:25:130
2067899365,4cyclictest81rcu_preempt23:35:341
2067899363,5cyclictest22-21ksoftirqd/121:36:151
2067799366,5cyclictest0-21swapper/020:20:160
20677993615,7cyclictest14146-21df_inode22:35:130
279412350,3sleep027938-21head23:55:290
277462351,29sleep027834-21ssh00:30:020
2067899357,7cyclictest3194-21ssh00:04:251
20678993525,6cyclictest21052-21ssh23:49:251
2067899351,6cyclictest22-21ksoftirqd/119:40:201
2067899351,18cyclictest8293-21ssh23:02:061
20678993511,4cyclictest81rcu_preempt22:00:261
2067799353,4cyclictest81rcu_preempt21:46:100
2067799353,16cyclictest14136-21df00:50:100
2067799352,29cyclictest0-21swapper/023:41:560
2067799351,30cyclictest30726-21ssh21:11:160
120112351,3sleep00-21swapper/000:13:150
2067899345,12cyclictest0-21swapper/100:15:231
2067899344,5cyclictest81rcu_preempt23:50:271
2067899343,4cyclictest81rcu_preempt00:43:101
2067899342,9cyclictest333-1kworker/1:1H22:30:551
20678993424,6cyclictest29112-21/usr/sbin/munin00:30:261
2067799349,13cyclictest745-21/usr/sbin/munin22:55:170
2067799343,18cyclictest13042-21hddtemp_smartct22:00:160
20677993427,3cyclictest0-21swapper/021:56:350
20677993426,4cyclictest4411-21ssh00:39:160
2067799342,5cyclictest0-21swapper/023:23:550
20677993414,6cyclictest20930-21/usr/sbin/munin23:15:210
2067799341,31cyclictest0-21swapper/022:05:560
2067799341,31cyclictest0-21swapper/022:05:560
2067799341,10cyclictest0-21swapper/023:30:130
138572345,10sleep014011-21fschecks_time00:15:160
20678993319,4cyclictest22-21ksoftirqd/100:50:531
2067899331,7cyclictest8084-21ssh22:29:011
20678993317,4cyclictest22-21ksoftirqd/122:20:011
2067899331,5cyclictest81rcu_preempt23:20:201
2067899331,30cyclictest0-21swapper/123:33:361
2067799339,6cyclictest17776-21ssh23:45:230
2067799338,12cyclictest24643-21seq20:59:310
2067799336,4cyclictest81rcu_preempt21:29:300
2067799335,6cyclictest137882ssh23:08:040
2067799332,4cyclictest0-21swapper/023:11:560
2067799332,28cyclictest0-21swapper/022:25:160
2067799331,7cyclictest30102-21ssh22:50:520
2067799331,4cyclictest20300-21ssh00:21:160
2067799331,30cyclictest0-21swapper/023:02:350
2067799331,29cyclictest2403-21irqbalance21:42:350
2067799331,15cyclictest29909-21/usr/sbin/munin23:25:240
220792321,27sleep122090-21ssh22:10:091
2067899327,4cyclictest81rcu_preempt21:50:241
2067899327,4cyclictest81rcu_preempt20:26:461
2067899324,4cyclictest81rcu_preempt21:41:111
20678993225,4cyclictest1497-21ssh22:21:361
20678993225,4cyclictest0-21swapper/121:48:551
20678993216,13cyclictest22-21ksoftirqd/121:10:411
2067899321,5cyclictest81rcu_preempt00:10:501
2067899321,4cyclictest81rcu_preempt20:09:251
2067899321,29cyclictest0-21swapper/120:30:551
2067899321,28cyclictest700-21fschecks_time19:55:151
2067899321,28cyclictest0-21swapper/121:05:151
2067799324,4cyclictest81rcu_preempt22:22:510
2067799323,4cyclictest81rcu_preempt22:11:320
2067799322,18cyclictest0-21swapper/022:47:020
20677993211,6cyclictest3-21ksoftirqd/021:30:380
20677993211,6cyclictest28474-21diskmemload21:20:300
111392320,3sleep0111rcuc/000:45:280
75422311,5sleep00-21swapper/000:08:440
264252311,26sleep10-21swapper/122:47:341
2067899312,4cyclictest81rcu_preempt23:42:231
20678993124,4cyclictest20955-21ssh22:41:371
2067899312,3cyclictest81rcu_preempt00:21:131
20678993122,6cyclictest22-21ksoftirqd/123:10:571
20678993115,7cyclictest22-21ksoftirqd/122:56:541
2067899311,4cyclictest81rcu_preempt23:25:101
2067899311,4cyclictest81rcu_preempt19:38:301
2067899311,27cyclictest0-21swapper/100:26:591
20678993112,4cyclictest81rcu_preempt20:20:261
2067899311,16cyclictest23351-21grep20:55:151
2067799313,15cyclictest0-21swapper/021:05:260
2067799312,14cyclictest23302-21iostat_ios19:30:060
2067799311,4cyclictest81rcu_preempt00:41:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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