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2026-02-19 - 09:20
[ 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 Thu Feb 19, 2026 00:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315919911821151,25cyclictest13016-21ssh21:15:221
315919911471118,12cyclictest32009-21expr19:25:121
315909911021063,20cyclictest32337-21irqstats19:25:200
311842563517,31sleep00-21swapper/019:21:180
314082465418,32sleep10-21swapper/119:23:421
315909911695,4cyclictest13032-21cut21:15:220
270402700,4sleep08148-21kworker/0:023:10:180
96072630,8sleep13159199cyclictest23:25:261
88442610,2sleep08843-21ssh21:10:360
226122600,2sleep022611-21sh00:12:520
197182570,22sleep03-21ksoftirqd/023:02:320
99542510,4sleep041ktimersoftd/023:25:300
31591995021,4cyclictest22-21ksoftirqd/100:45:371
31591995017,4cyclictest22-21ksoftirqd/123:47:061
31591994912,6cyclictest22-21ksoftirqd/122:35:131
31591994812,5cyclictest22-21ksoftirqd/122:45:141
68702470,3sleep041ktimersoftd/000:30:140
3159199479,6cyclictest22-21ksoftirqd/100:01:321
240372470,2sleep124039-21uname23:40:271
31591994520,5cyclictest31441-21ssh23:15:121
31591994418,4cyclictest22-21ksoftirqd/122:44:551
31591994418,16cyclictest22-21ksoftirqd/122:58:201
31591994416,4cyclictest22-21ksoftirqd/121:46:401
31590994418,9cyclictest29897-21/usr/sbin/munin22:40:320
3159199438,6cyclictest22-21ksoftirqd/123:58:321
3159199435,4cyclictest81rcu_preempt21:52:111
31590994310,16cyclictest2206-21dbus-daemon21:37:380
3159199423,6cyclictest22-21ksoftirqd/122:54:011
3159199421,7cyclictest22-21ksoftirqd/123:35:151
31591994217,4cyclictest22-21ksoftirqd/122:17:081
3159199419,4cyclictest22-21ksoftirqd/122:12:011
3159199419,10cyclictest22-21ksoftirqd/121:30:281
3159199414,4cyclictest81rcu_preempt19:55:241
31591994124,4cyclictest22-21ksoftirqd/123:00:261
3159199411,7cyclictest22-21ksoftirqd/122:20:181
3159199411,7cyclictest22-21ksoftirqd/121:20:281
31591994117,6cyclictest22-21ksoftirqd/123:30:191
3159199411,6cyclictest22-21ksoftirqd/100:50:161
31591994115,4cyclictest22-21ksoftirqd/122:33:451
319682400,8sleep03159099cyclictest00:22:240
319682400,8sleep03159099cyclictest00:22:230
3159199405,4cyclictest81rcu_preempt20:40:231
3159199403,4cyclictest81rcu_preempt21:55:191
31591994019,8cyclictest22-21ksoftirqd/120:25:281
3159199401,7cyclictest22-21ksoftirqd/123:20:261
3159199401,7cyclictest22-21ksoftirqd/121:40:181
3159199401,7cyclictest22-21ksoftirqd/121:25:141
3159199401,7cyclictest22-21ksoftirqd/120:55:231
3159199401,7cyclictest22-21ksoftirqd/119:45:261
3159199401,7cyclictest22-21ksoftirqd/119:40:281
3159199401,7cyclictest22-21ksoftirqd/100:20:191
3159199401,7cyclictest22-21ksoftirqd/100:20:191
3159199401,6cyclictest22-21ksoftirqd/119:35:121
3159199401,17cyclictest22-21ksoftirqd/122:25:121
3159199393,4cyclictest81rcu_preempt20:20:151
31591993921,4cyclictest22-21ksoftirqd/100:15:151
3159199391,7cyclictest22-21ksoftirqd/123:10:161
3159199391,7cyclictest22-21ksoftirqd/121:05:191
3159199391,7cyclictest22-21ksoftirqd/120:10:181
3159199391,7cyclictest22-21ksoftirqd/119:50:121
3159199391,7cyclictest22-21ksoftirqd/119:30:291
3159199391,6cyclictest22-21ksoftirqd/123:50:271
3159199391,6cyclictest22-21ksoftirqd/121:10:161
3159199391,6cyclictest22-21ksoftirqd/120:30:171
3159199391,6cyclictest22-21ksoftirqd/100:40:211
3159199391,6cyclictest22-21ksoftirqd/100:25:121
3159099396,4cyclictest81rcu_preempt22:27:440
169262391,4sleep016937-21ssh21:52:560
31591993822,4cyclictest22-21ksoftirqd/100:09:311
3159199381,7cyclictest22-21ksoftirqd/120:45:231
3159199381,7cyclictest22-21ksoftirqd/100:30:111
3159199381,7cyclictest22-21ksoftirqd/100:10:081
3159199381,6cyclictest22-21ksoftirqd/122:05:251
3159199381,6cyclictest22-21ksoftirqd/121:39:571
3159199381,4cyclictest81rcu_preempt23:05:181
3159099386,28cyclictest0-21swapper/022:03:160
31590993815,8cyclictest28743-21hddtemp_smartct20:40:170
3159199371,7cyclictest22-21ksoftirqd/120:15:131
31591993714,4cyclictest81rcu_preempt20:00:261
3159199361,7cyclictest22-21ksoftirqd/120:37:311
3159099361,22cyclictest6804-21ssh23:22:490
31590993610,12cyclictest23085-21tr23:40:120
3159199353,4cyclictest81rcu_preempt00:35:231
3159199351,4cyclictest81rcu_preempt22:00:301
3159099356,16cyclictest31264-21ssh21:34:570
3159099355,13cyclictest17021-21aten_r4power_po20:10:110
3159099354,4cyclictest81rcu_preempt22:21:560
3159099353,29cyclictest0-21swapper/021:45:560
31590993526,5cyclictest0-21swapper/021:27:160
3159099352,30cyclictest0-21swapper/022:05:150
3159099352,29cyclictest0-21swapper/021:23:560
171612351,30sleep017197-21proc_pri00:40:270
3159099348,12cyclictest12970-21ntpq22:55:250
3159099345,4cyclictest81rcu_preempt00:25:180
3159099343,4cyclictest81rcu_preempt21:40:100
3159099341,5cyclictest3272-21ssh22:11:550
31590993415,5cyclictest5541-21tr21:05:130
3159099341,14cyclictest28682-21ssh23:45:240
31590993410,12cyclictest18621-21/usr/sbin/munin21:55:220
136202340,7sleep00-21swapper/000:36:410
3159199332,10cyclictest22-21ksoftirqd/120:50:121
3159199331,4cyclictest81rcu_preempt20:05:241
3159099335,4cyclictest81rcu_preempt23:35:230
3159099333,4cyclictest81rcu_preempt19:35:180
3159099333,14cyclictest0-21swapper/023:07:140
31590993326,5cyclictest0-21swapper/020:56:560
31590993326,4cyclictest0-21swapper/000:45:160
3159099332,28cyclictest0-21swapper/022:51:150
3159099332,16cyclictest25397-21hddtemp_smartct00:50:170
3159099331,4cyclictest81rcu_preempt20:45:170
31590993313,6cyclictest6171-21perl19:40:150
3159099331,30cyclictest0-21swapper/022:49:160
31591993217,4cyclictest22-21ksoftirqd/121:00:431
3159099328,13cyclictest6815-21/usr/sbin/munin22:15:260
3159099324,4cyclictest81rcu_preempt23:55:260
3159099322,16cyclictest22892-21df20:25:140
3159099322,15cyclictest26843-21perl20:35:170
3159099321,20cyclictest0-21swapper/021:00:440
3159099321,12cyclictest29612-21sh22:39:590
31590993210,8cyclictest11034-21ssh00:00:270
31590993210,5cyclictest10574-21timerwakeupswit19:50:280
247772321,4sleep024856-21fschecks_count20:30:150
208992321,27sleep020989-21/usr/sbin/munin22:30:200
3159099313,4cyclictest81rcu_preempt00:16:050
31590993123,6cyclictest0-21swapper/020:20:360
31590993121,6cyclictest1666-21ssh23:17:300
31590993117,8cyclictest7858-21diskstats19:45:150
3159099311,4cyclictest81rcu_preempt23:54:530
31590993112,6cyclictest15349-21iostat_ios00:05:180
3159099302,4cyclictest81rcu_preempt23:30:470
3159099302,15cyclictest2098-21df_inode19:30:140
202862301,5sleep00-21swapper/020:17:200
148412301,5sleep00-21swapper/020:04:150
9202291,5sleep00-21swapper/020:51:280
127492291,5sleep00-21swapper/019:57:110
3159099282,13cyclictest0-21swapper/020:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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