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2026-02-25 - 15:42
[ 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 highest latencies:
System rack9slot4s (updated Wed Feb 25, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204499912341210,7cyclictest0-21swapper/007:25:540
204519911721151,17cyclictest21607-21python07:25:271
202992655609,31sleep10-21swapper/107:23:591
199942562517,30sleep00-21swapper/007:20:470
252952890,9sleep02044999cyclictest11:53:150
161072860,4sleep0111rcuc/009:30:110
161072860,4sleep0111rcuc/009:30:110
69592820,4sleep041ktimersoftd/012:07:320
168512760,4sleep1211ktimersoftd/110:37:231
2045199672,36cyclictest2309-21cron08:40:001
114762540,23sleep03-21ksoftirqd/012:12:030
52242530,3sleep1201rcuc/110:25:231
20451995321,6cyclictest22-21ksoftirqd/110:16:261
20451995011,8cyclictest22-21ksoftirqd/112:01:451
20451995011,8cyclictest22-21ksoftirqd/112:01:441
128882460,4sleep1201rcuc/110:33:401
23062440,4sleep0111rcuc/009:15:290
20451994426,6cyclictest22-21ksoftirqd/112:35:261
20451994323,5cyclictest22-21ksoftirqd/111:21:251
20451994323,5cyclictest22-21ksoftirqd/110:22:031
20451994322,5cyclictest22-21ksoftirqd/109:58:441
20451994321,11cyclictest22-21ksoftirqd/110:51:151
20451994222,5cyclictest22-21ksoftirqd/112:28:081
20451994222,5cyclictest22-21ksoftirqd/109:26:021
20451994217,15cyclictest22-21ksoftirqd/111:02:411
2044999423,3cyclictest81rcu_preempt12:37:250
11692420,4sleep0111rcuc/010:20:510
64182410,6sleep12045199cyclictest12:40:211
20451994125,5cyclictest22-21ksoftirqd/112:30:101
20451994123,5cyclictest22-21ksoftirqd/111:34:011
20451994122,5cyclictest22-21ksoftirqd/112:17:291
20451994122,5cyclictest22-21ksoftirqd/111:43:271
20451994117,7cyclictest22-21ksoftirqd/108:10:251
20451994023,6cyclictest22-21ksoftirqd/110:13:341
20451994023,6cyclictest22-21ksoftirqd/109:40:411
20451993924,5cyclictest22-21ksoftirqd/111:59:181
20451993924,5cyclictest22-21ksoftirqd/111:11:591
20451993920,9cyclictest22-21ksoftirqd/109:48:401
20451993919,5cyclictest22-21ksoftirqd/111:47:561
157532391,4sleep015765-21ssh12:16:180
44192385,3sleep081rcu_preempt10:58:110
2045199387,5cyclictest81rcu_preempt09:55:001
20451993823,5cyclictest22-21ksoftirqd/112:21:251
20451993823,5cyclictest22-21ksoftirqd/109:23:261
20451993823,5cyclictest22-21ksoftirqd/109:11:191
20451993823,5cyclictest22-21ksoftirqd/109:00:091
20451993822,5cyclictest22-21ksoftirqd/109:30:381
20451993822,5cyclictest22-21ksoftirqd/109:30:371
2044999384,5cyclictest0-21swapper/010:13:550
2044999382,13cyclictest0-21swapper/007:40:390
20449993817,5cyclictest0-21swapper/010:44:420
296962370,3sleep041ktimersoftd/010:50:260
20451993722,5cyclictest22-21ksoftirqd/110:02:491
20451993722,4cyclictest22-21ksoftirqd/110:08:461
20451993721,5cyclictest22-21ksoftirqd/110:57:311
20451993622,4cyclictest22-21ksoftirqd/109:38:081
2045199360,14cyclictest32424-21ssh11:26:401
2045199360,14cyclictest32424-21ssh11:26:401
20451993525,6cyclictest17458-21ssh12:52:481
2045199352,30cyclictest0-21swapper/110:47:351
2045199352,20cyclictest8666-21cron12:10:001
20451993520,4cyclictest22-21ksoftirqd/112:49:331
20451993518,6cyclictest22-21ksoftirqd/111:53:391
20451993515,5cyclictest22-21ksoftirqd/112:11:171
2044999351,6cyclictest29541-21kworker/0:009:46:350
79922341,4sleep08003-21sh12:41:490
216612341,29sleep021725-21iostat08:50:180
211572341,29sleep021188-21tr11:15:210
2045199342,5cyclictest2309-21cron08:20:001
20451993420,4cyclictest22-21ksoftirqd/110:40:231
2045199341,7cyclictest3902-21ssh09:17:091
2044999347,4cyclictest0-21swapper/011:59:580
2044999343,29cyclictest0-21swapper/008:48:350
2044999342,29cyclictest0-21swapper/010:02:350
2044999342,29cyclictest0-21swapper/009:14:360
2044999341,6cyclictest0-21swapper/009:57:150
2044999341,29cyclictest23014-21/usr/sbin/munin08:55:150
126112340,4sleep0111rcuc/011:06:010
2045199333,3cyclictest0-21swapper/111:16:151
2045199331,29cyclictest0-21swapper/108:21:151
2044999335,5cyclictest81rcu_preempt11:03:580
2044999334,4cyclictest81rcu_preempt11:12:140
2044999333,4cyclictest81rcu_preempt09:20:020
20449993310,16cyclictest0-21swapper/010:18:210
132482331,3sleep113259-21ssh11:06:571
123502331,5sleep012360-21ssh12:46:320
2045199321,7cyclictest9222-21ssh11:35:561
2045199321,5cyclictest0-21swapper/108:55:351
2045199321,29cyclictest0-21swapper/107:45:551
2044999328,6cyclictest0-21swapper/011:42:240
2044999326,13cyclictest28508-21diskmemload09:50:560
2044999324,4cyclictest81rcu_preempt12:01:330
2044999324,4cyclictest81rcu_preempt12:01:330
2044999323,27cyclictest0-21swapper/007:38:150
20449993213,5cyclictest29521-21hddtemp_smartct07:45:200
20449993212,6cyclictest32766-21ssh11:27:100
20449993212,6cyclictest32766-21ssh11:27:100
20449993212,6cyclictest11482-21ssh10:31:360
20449993212,5cyclictest0-21swapper/010:39:520
2045199312,8cyclictest21137-21/usr/sbin/munin08:50:121
20451993114,6cyclictest22-21ksoftirqd/108:09:091
20451993112,6cyclictest40550irq/92-i91508:25:281
2044999311,4cyclictest81rcu_preempt09:26:540
2044999311,4cyclictest81rcu_preempt08:01:150
2044999311,27cyclictest0-21swapper/010:29:560
2044999311,27cyclictest0-21swapper/009:42:370
192962311,5sleep00-21swapper/011:46:330
273782301,5sleep00-21swapper/009:05:200
2045199304,19cyclictest25346-21diskstats07:35:151
2045199302,13cyclictest20976-21cron08:50:001
2044999304,5cyclictest81rcu_preempt08:40:110
2044999303,4cyclictest81rcu_preempt12:22:090
2044999303,14cyclictest23620-21perl07:30:160
2044999301,6cyclictest0-21swapper/012:31:550
2044999301,4cyclictest81rcu_preempt08:09:360
20449993014,12cyclictest3-21ksoftirqd/011:22:310
20449993012,6cyclictest9366-21ssh11:36:080
2044999301,21cyclictest0-21swapper/010:46:070
2044999301,14cyclictest20688-21ssh09:35:090
2044999301,11cyclictest0-21swapper/008:22:140
2045199292,5cyclictest27253-21apt-get07:40:281
2045199292,10cyclictest0-21swapper/108:43:131
20451992914,5cyclictest22-21ksoftirqd/108:03:141
2045199291,15cyclictest0-21swapper/107:30:061
2044999293,13cyclictest0-21swapper/007:50:200
20449992920,5cyclictest2645-21snmpd12:52:460
2044999291,16cyclictest12750-21smart_sda08:25:280
2044999291,14cyclictest2890-21cstates11:30:130
2044999291,14cyclictest20557-21ssh10:07:580
20449992910,6cyclictest1008-21memory07:55:210
75362281,5sleep00-21swapper/008:12:180
283382281,5sleep10-21swapper/109:08:251
20451992813,6cyclictest22-21ksoftirqd/107:50:461
20451992811,6cyclictest22-21ksoftirqd/107:55:261
2044999283,4cyclictest81rcu_preempt09:02:080
2044999282,22cyclictest0-21swapper/008:35:230
2044999281,4cyclictest81rcu_preempt12:26:180
20449992812,5cyclictest14205-21iostat_ios08:30:170
20451992720,4cyclictest13609-21/usr/sbin/munin08:30:151
2044999273,16cyclictest0-21swapper/008:16:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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