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2026-01-16 - 01:55
[ 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 #b, slot #7

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.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot7s.osadl.org (updated Thu Jan 15, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251082241016,2375sleep325101-21apt-get08:49:423
82042142815,1397sleep28205-21ntp_states11:19:532
82042142815,1397sleep28205-21ntp_states11:19:532
16470290121,862sleep016608-21grep08:19:590
8775287317,845sleep032283-1kworker/0:0H09:40:560
16263273217,698sleep116323-21/usr/sbin/munin08:19:561
29434271715,684sleep329520-21/usr/sbin/munin07:19:483
14286253217,491sleep00-21swapper/008:14:460
6510248378,387sleep06635-21latency_hist09:34:300
20710243413,406sleep220781-21/usr/sbin/munin10:19:272
20710243413,406sleep220781-21/usr/sbin/munin10:19:272
259762409125,81sleep00-21swapper/007:09:470
22097231625,94sleep022130-21fschecks_count08:39:450
8991231419,253sleep08994-21cron07:59:270
12475223619,202sleep212482-21diskstats11:34:432
30807222237,135sleep030827-21modprobe12:34:260
29986221916,185sleep230093-21timerwakeupswit07:19:592
19811221928,137sleep019847-21ntp_kernel_err10:14:530
19811221928,137sleep019847-21ntp_kernel_err10:14:530
20873221648,17sleep00-21swapper/011:59:570
31832221019,32sleep00-21swapper/012:34:590
2368220339,76sleep00-21swapper/009:19:480
13445219245,102sleep013585-21unixbench_multi08:11:220
3919218919,20sleep00-21swapper/009:24:490
27711218722,146sleep227733-21awk12:24:272
1642021846,11sleep00-21swapper/011:44:590
1996121807,135sleep020088-21latency_hist11:59:290
13366218015,152sleep313443-21grep08:11:213
1173721807,158sleep00-21swapper/009:49:450
1173721807,158sleep00-21swapper/009:49:450
10613218010,114sleep010713-21latency_hist11:29:280
10613218010,114sleep010713-21latency_hist11:29:280
32229217958,104sleep032322-21grep10:54:470
24584217928,116sleep024620-21grep10:29:550
8004217470,32sleep08030-21cron09:39:270
484321687,110sleep00-21swapper/007:44:490
484321687,110sleep00-21swapper/007:44:490
2928221646,33sleep00-21swapper/009:00:540
2928221646,33sleep00-21swapper/009:00:540
1674121639,118sleep016779-21ntp_kernel_pll_10:04:510
30565216234,35sleep030584-21apt-get10:49:380
199521579,108sleep02073-21grep07:34:550
199521579,108sleep02073-21grep07:34:550
20124215619,110sleep320278-21grep10:15:003
20124215619,110sleep320278-21grep10:15:003
18030215223,104sleep218180-21grep08:24:572
29265214622,22sleep00-21swapper/010:44:530
30596214517,107sleep230740-21unixbench_singl09:05:002
30596214517,107sleep230740-21unixbench_singl09:05:002
254802138103,21sleep00-21swapper/008:49:510
25680213612,105sleep225730-21/usr/sbin/munin10:34:422
23488213411,109sleep023551-21if_err_eth012:09:470
17047213320,46sleep20-21swapper/211:49:372
1782213170,41sleep00-21swapper/009:19:270
14763213025,25sleep00-21swapper/009:59:380
241021295,112sleep00-21swapper/011:02:470
22550212810,40sleep00-21swapper/010:24:380
6135212620,88sleep36152-21/usr/sbin/munin11:14:373
6135212620,88sleep36152-21/usr/sbin/munin11:14:373
19372212624,28sleep00-21swapper/008:29:560
19372212624,28sleep00-21swapper/008:29:560
401021245,10sleep00-21swapper/007:40:120
30986212451,41sleep030095-21snmpd09:07:520
30986212451,41sleep030095-21snmpd09:07:520
13945212311,75sleep014089-21sed09:54:580
13945212311,75sleep014089-21sed09:54:580
21296212236,18sleep00-21swapper/010:19:490
10575212220,61sleep00-21swapper/008:04:280
9070212116,53sleep39170-21latency_hist07:59:303
1922212115,90sleep36192-1kworker/3:2H09:19:313
12171212117,70sleep012152-21munin-run08:09:280
641321188,55sleep00-21swapper/011:16:200
641321188,55sleep00-21swapper/011:16:200
17597211838,17sleep00-21swapper/011:49:560
16783211717,75sleep30-21swapper/311:49:263
2895321165,10sleep00-21swapper/007:19:000
20531211623,71sleep220624-21fschecks_time08:34:472
1518621165,12sleep00-21swapper/011:43:500
3131321157,93sleep00-21swapper/007:24:540
6174211419,74sleep16156-21apt-get11:14:471
6174211419,74sleep16156-21apt-get11:14:471
18379211418,23sleep00-21swapper/010:09:560
13658211422,72sleep113662-21cron11:39:271
6154211222,33sleep00-21swapper/007:49:370
2764821125,34sleep00-21swapper/008:55:530
28379211019,71sleep328435-21fschecks_count08:59:483
28379211019,71sleep328435-21fschecks_count08:59:483
2598121107,70sleep00-21swapper/012:17:300
10348210823,17sleep00-21swapper/009:44:480
10348210823,17sleep00-21swapper/009:44:480
1199210618,55sleep00-21swapper/007:34:150
23065210517,71sleep223110-21wc12:09:282
1198721056,66sleep00-21swapper/011:32:510
8531210414,69sleep38023-21apt-get09:39:383
2295221035,65sleep00-21swapper/012:08:380
22569210310,18sleep10-21swapper/110:24:391
17890210332,44sleep117885-21apt-get10:09:411
27700210250,41sleep027710-21ntp_states10:39:530
27700210250,41sleep027710-21ntp_states10:39:530
2775321019,82sleep027762-21munin-run12:24:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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