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2026-01-21 - 14:41
[ 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 21, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289189912882,1246cyclictest29353-21diskstats07:25:140
289199912521234,15cyclictest15489-21strings09:20:211
289199911101086,7cyclictest0-21swapper/107:25:111
285852532488,29sleep10-21swapper/107:22:051
284972495446,34sleep00-21swapper/007:21:090
2891899229208,17cyclictest0-21swapper/009:20:210
265612840,4sleep0111rcuc/011:11:460
97512820,8sleep02891899cyclictest10:55:120
61942760,7sleep12891999cyclictest11:57:521
54532660,5sleep128916-21cyclictest09:10:161
262312500,4sleep02891899cyclictest09:31:090
57232440,5sleep041ktimersoftd/012:30:260
2891899445,28cyclictest81rcu_preempt10:21:550
28918994423,5cyclictest3-21ksoftirqd/010:03:500
321332430,5sleep132131-21ssh10:10:291
2891999438,31cyclictest0-21swapper/112:38:551
28918994324,8cyclictest3-21ksoftirqd/011:00:260
28918994324,8cyclictest3-21ksoftirqd/010:46:320
28918994322,4cyclictest3-21ksoftirqd/010:30:260
28918994221,5cyclictest3-21ksoftirqd/012:25:380
28918994220,5cyclictest3-21ksoftirqd/011:20:240
28918994121,5cyclictest3-21ksoftirqd/010:53:140
28918994025,5cyclictest3-21ksoftirqd/011:52:150
28918994020,5cyclictest3-21ksoftirqd/012:15:480
28918994020,5cyclictest3-21ksoftirqd/011:06:210
28918994020,5cyclictest3-21ksoftirqd/011:06:210
28918994020,5cyclictest3-21ksoftirqd/010:40:240
71602390,4sleep02891899cyclictest11:59:170
28918993924,5cyclictest3-21ksoftirqd/012:41:030
28918993922,6cyclictest3-21ksoftirqd/011:25:430
61192382,3sleep181rcu_preempt10:17:351
2891999384,30cyclictest0-21swapper/112:32:151
2891899382,6cyclictest9820-21diskstats12:35:160
28918993823,5cyclictest3-21ksoftirqd/011:30:210
28918993823,5cyclictest3-21ksoftirqd/011:15:140
28918993823,5cyclictest3-21ksoftirqd/010:17:470
28918993823,5cyclictest3-21ksoftirqd/010:11:370
28918993823,5cyclictest3-21ksoftirqd/009:48:320
28918993822,5cyclictest3-21ksoftirqd/010:27:030
28918993822,5cyclictest3-21ksoftirqd/007:37:530
28918993821,6cyclictest3-21ksoftirqd/009:29:510
28918993820,8cyclictest3-21ksoftirqd/012:21:410
28918993811,14cyclictest10158-21ssh12:01:370
28918993722,5cyclictest3-21ksoftirqd/009:58:170
28918993722,5cyclictest3-21ksoftirqd/009:51:060
28918993722,4cyclictest3-21ksoftirqd/011:47:000
28918993721,5cyclictest3-21ksoftirqd/009:38:020
28918993720,6cyclictest3-21ksoftirqd/008:35:340
28918993621,5cyclictest3-21ksoftirqd/012:54:380
28918993621,5cyclictest3-21ksoftirqd/010:05:010
28918993621,5cyclictest3-21ksoftirqd/009:17:150
28918993621,4cyclictest3-21ksoftirqd/009:11:470
28918993617,8cyclictest3-21ksoftirqd/012:11:490
28918993617,7cyclictest3-21ksoftirqd/012:05:120
15452360,2sleep01546-21sh09:40:100
2891999356,4cyclictest81rcu_preempt12:20:161
2891999355,4cyclictest81rcu_preempt11:30:311
2891999354,4cyclictest81rcu_preempt10:05:151
2891999353,4cyclictest81rcu_preempt12:46:471
2891999351,29cyclictest15848-21ssh09:54:561
28918993527,6cyclictest0-21swapper/008:30:560
2891899352,30cyclictest0-21swapper/011:35:550
2891899351,7cyclictest22205-21ssh12:48:520
2891999345,26cyclictest22-21ksoftirqd/110:21:361
2891999342,29cyclictest0-21swapper/109:32:151
2891999341,5cyclictest81rcu_preempt10:53:531
2891999341,5cyclictest31516-21ssh11:16:561
28919993414,5cyclictest21583-21sh09:26:251
2891999341,30cyclictest0-21swapper/111:37:351
28918993426,6cyclictest0-21swapper/008:14:550
28918993416,8cyclictest3-21ksoftirqd/011:43:450
231222341,4sleep123134-21irqstats12:15:201
6312331,4sleep1638-21ntp_states12:25:241
2891999334,4cyclictest81rcu_preempt10:27:381
2891999333,5cyclictest0-21swapper/108:23:161
28919993316,14cyclictest22-21ksoftirqd/111:20:541
2891999331,4cyclictest81rcu_preempt11:28:441
2891999331,30cyclictest0-21swapper/111:48:161
2891999331,30cyclictest0-21swapper/107:35:361
2891999331,29cyclictest0-21swapper/110:36:551
2891999331,28cyclictest2403-21irqbalance11:14:551
2891899331,30cyclictest0-21swapper/008:15:560
2891899331,20cyclictest6535-21runrttasks07:46:260
2891999325,4cyclictest81rcu_preempt12:51:451
2891999325,4cyclictest81rcu_preempt10:45:151
2891999324,4cyclictest81rcu_preempt10:01:111
2891999322,4cyclictest81rcu_preempt10:41:391
28919993224,6cyclictest0-21swapper/108:27:161
2891999321,5cyclictest0-21swapper/112:42:561
2891999321,4cyclictest81rcu_preempt09:46:561
2891999321,29cyclictest0-21swapper/111:05:361
2891999321,29cyclictest0-21swapper/111:05:351
2891999321,20cyclictest0-21swapper/110:32:111
2891899328,11cyclictest30497-21gdbus09:01:210
2891899324,13cyclictest2206-21dbus-daemon07:51:160
4362311,5sleep00-21swapper/007:30:420
2891999316,4cyclictest81rcu_preempt09:03:501
2891999316,4cyclictest81rcu_preempt08:57:301
2891999315,4cyclictest81rcu_preempt08:11:381
2891999314,4cyclictest81rcu_preempt07:52:591
2891999312,4cyclictest81rcu_preempt09:36:281
28919993121,6cyclictest3367-21cut09:05:161
2891999311,4cyclictest81rcu_preempt11:51:461
2891999311,4cyclictest81rcu_preempt09:41:061
2891899312,4cyclictest81rcu_preempt10:37:570
28918993116,5cyclictest3-21ksoftirqd/009:09:050
28918993116,5cyclictest3-21ksoftirqd/008:44:020
2891899311,27cyclictest0-21swapper/007:55:550
2891899311,19cyclictest30526-21processes08:50:240
2891899311,18cyclictest21454-21head08:25:300
2891999302,4cyclictest81rcu_preempt08:05:391
2891999301,4cyclictest81rcu_preempt12:10:361
2891999301,4cyclictest81rcu_preempt11:41:051
2891999301,4cyclictest81rcu_preempt09:15:071
2891999301,27cyclictest0-21swapper/108:30:351
2891999301,26cyclictest0-21swapper/107:40:151
2891999301,13cyclictest81rcu_preempt12:05:151
48672291,5sleep00-21swapper/007:43:370
2891999294,4cyclictest81rcu_preempt08:42:071
2891999291,4cyclictest81rcu_preempt12:02:211
2891999291,4cyclictest81rcu_preempt10:56:301
2891999291,4cyclictest81rcu_preempt09:56:211
2891899299,7cyclictest32427-21ps08:55:250
2891899292,15cyclictest19413-21/usr/sbin/munin08:20:280
169522291,4sleep10-21swapper/111:01:531
140402291,5sleep00-21swapper/008:06:150
669522810,8sleep122-21ksoftirqd/107:48:061
2891999286,8cyclictest0-21swapper/108:35:101
28918992810,5cyclictest28020-21df08:45:120
28918992810,5cyclictest11643-21ntp_states08:00:250
2891999273,4cyclictest81rcu_preempt08:16:081
2891999273,20cyclictest0-21swapper/108:50:161
121842271,5sleep10-21swapper/108:01:271
106092271,5sleep10-21swapper/107:59:481
4492261,5sleep10-21swapper/107:30:511
28919992612,9cyclictest27738-21/usr/sbin/munin08:45:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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