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2026-02-21 - 10:12
[ 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 Sat Feb 21, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
108312637217,6333sleep01748-21kworker/u8:122:10:120
200352402513,3997sleep06897-21kworker/0:119:14:420
16834248612,460sleep016876-21ntpq19:04:490
2987924799,432sleep129959-21fschecks_time19:44:441
1678224379,386sleep116907-21latency_hist22:29:271
22754241937,343sleep122760-21apt-get21:04:361
2967523619,338sleep129805-21cat21:24:551
196722335150,92sleep10-21swapper/120:54:471
196722335150,92sleep10-21swapper/120:54:471
31168228548,159sleep131275-21timerandwakeup21:29:551
18767226876,176sleep118770-21cron00:19:241
1778224620,207sleep01836-21grep23:24:420
1778224620,207sleep01836-21grep23:24:420
28542224389,28sleep10-21swapper/119:40:071
3923223115,192sleep14067-21unixbench_multi23:29:561
3498222921,188sleep03633-21unixbench_singl21:44:560
5429222146,157sleep10-21swapper/123:35:051
17634221531,126sleep117741-21timerandwakeup22:29:551
1495122157,197sleep313441-21snmpd22:21:253
212522130,27sleep117814-21cyclictest19:59:411
19172221247,119sleep119256-21fschecks_time00:19:441
7974220634,129sleep18012-21modprobe20:19:251
12513220534,122sleep112554-21modprobe23:59:241
1316220445,137sleep11383-21fschecks_time21:39:441
23867220245,79sleep10-21swapper/119:24:571
2531122007,156sleep125446-21latency_hist00:39:271
2531122007,156sleep125446-21latency_hist00:39:271
25169219410,90sleep10-21swapper/119:29:571
2039621928,17sleep10-21swapper/119:14:511
19835218816,154sleep119863-21modprobe22:39:241
1293921787,158sleep113068-21sort20:34:271
17097217311,16sleep00-21swapper/022:29:420
16214217273,19sleep10-21swapper/100:09:461
586721717,38sleep10-21swapper/121:54:381
1812321717,124sleep118201-21sed20:49:461
1812321717,124sleep118201-21sed20:49:461
5820216144,50sleep10-21swapper/120:09:561
26091216110,56sleep10-21swapper/121:14:461
23045215112,123sleep023191-21latency_hist22:49:290
2455721509,126sleep124640-21latency_hist22:54:271
1184621460,10sleep20-21swapper/220:29:552
1292721378,108sleep10-21swapper/123:59:451
1292721378,108sleep10-21swapper/123:59:451
18845213619,27sleep30-21swapper/300:19:263
2646221358,85sleep10-21swapper/122:59:441
11760213415,88sleep20-21swapper/223:54:532
2210721317,112sleep122152-21ntp_states22:44:491
325821307,52sleep10-21swapper/121:44:531
32598212811,67sleep10-21swapper/119:54:251
24854212715,92sleep024872-21apt19:29:360
22862212729,62sleep123005-21date19:24:281
1522521267,58sleep115251-21date22:24:261
1931621259,79sleep119341-21latency_hist19:14:271
24441212434,26sleep30-21swapper/319:29:273
2079321249,35sleep10-21swapper/120:59:271
586212253,19sleep10-21swapper/119:54:451
32364212231,76sleep132389-21cat23:19:261
10583211826,64sleep010733-21grep20:24:570
2337621175,27sleep10-21swapper/100:33:331
2337621175,27sleep10-21swapper/100:33:331
13009211740,38sleep10-21swapper/122:14:531
1002521158,41sleep10-21swapper/120:24:461
2994921149,93sleep130009-21find23:09:531
1077421148,42sleep10-21swapper/122:09:361
19044211223,64sleep30-21swapper/322:34:543
5793211113,81sleep05938-21sed23:35:120
507211138,56sleep2509-21/usr/sbin/munin23:19:482
22028211115,32sleep322067-21memory22:44:473
13644211137,36sleep10-21swapper/120:34:521
7712211045,30sleep10-21swapper/121:59:471
15252210920,62sleep20-21swapper/222:24:272
626210717,71sleep3688-21sendmail_mailst23:19:533
3013621070,6sleep20-21swapper/221:27:412
28263210714,70sleep228235-21apt-get19:39:522
2145210713,72sleep32164-21fschecks_count19:59:443
9565210429,43sleep19599-21unin-run20:24:261
28096210417,74sleep328222-21timerwakeupswit21:19:563
23442210320,65sleep323443-21cron00:34:243
23442210320,65sleep323443-21cron00:34:243
2198521010,11sleep00-21swapper/019:19:500
351229913,68sleep03565-21latency23:29:470
2617129917,63sleep10-21swapper/122:59:271
2385329918,62sleep223930-21/usr/sbin/munin22:49:552
2083529827,51sleep020972-21grep22:39:560
773929717,70sleep10-21swapper/123:42:441
773929717,70sleep10-21swapper/123:42:441
53429726,49sleep0529-21apt-get19:54:440
411329710,74sleep04193-21mailstats20:04:540
2958629713,69sleep029674-21switchtime21:24:540
70602965,14sleep00-21swapper/021:58:330
967529311,37sleep10-21swapper/122:04:561
207092939,39sleep10-21swapper/100:24:411
1521229310,36sleep115247-21grep20:39:531
106882930,10sleep210667-21apt-key22:09:282
1042229330,17sleep10-21swapper/123:49:551
877829214,63sleep38844-21mailstats20:19:553
594429218,55sleep26061-21/usr/sbin/munin20:09:572
3148229216,54sleep330991-21/usr/sbin/munin23:14:523
1270229112,58sleep212310-21/usr/sbin/munin22:14:462
505129025,41sleep35018-21apt-get23:34:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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