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2026-02-27 - 03:50
[ 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 Fri Feb 27, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2754260514,574sleep02763-21/usr/sbin/munin21:44:370
16314249716,464sleep016320-21/usr/sbin/munin22:29:300
16314249716,464sleep016320-21/usr/sbin/munin22:29:300
20804240213,366sleep320937-21unixbench_singl20:59:383
24803238613,276sleep324818-21fschecks_count21:14:243
28945235023,317sleep313441-21snmpd21:26:553
22191234129,296sleep322328-21grep00:29:403
9401228610,192sleep30-21swapper/322:09:063
13512228277,185sleep313551-21sendmail20:39:033
13512228277,185sleep313551-21sendmail20:39:033
1568227184,111sleep31587-21modprobe21:44:033
31771223971,154sleep331833-21latency_hist19:54:063
15772223812,216sleep032320-21kworker/u8:319:04:130
27863222125,184sleep327912-21ntpq23:04:293
11837221936,164sleep311895-40find23:59:033
9352221515,19sleep30-21swapper/320:24:263
7190221520,181sleep17230-21/usr/sbin/munin23:44:041
27564220734,111sleep327612-21/usr/sbin/munin21:24:053
1024220711,131sleep30-21swapper/323:24:073
3407220068,23sleep30-21swapper/321:49:203
27231220012,111sleep327324-21fschecks_time19:39:283
20271218913,161sleep020308-21if_eth020:59:270
23266218813,24sleep30-21swapper/321:09:233
1943218618,93sleep30-21swapper/321:44:233
4087218217,144sleep24219-21tail21:49:352
809221787,136sleep38200-21cat23:44:343
15086217416,142sleep30-21swapper/320:44:043
89421609,134sleep31023-21latency_hist19:59:063
29497216010,135sleep329591-21fschecks_time21:29:263
2001215924,114sleep22140-21unixbench_singl23:24:392
4756215376,14sleep30-21swapper/323:34:293
1835821537,90sleep313441-21snmpd19:10:253
1835821537,90sleep313441-21snmpd19:10:253
18240215210,77sleep30-21swapper/320:54:053
2411621519,123sleep30-21swapper/322:54:203
7373215019,114sleep032320-21kworker/u8:320:19:060
10316214971,16sleep30-21swapper/322:09:353
2687821428,13sleep00-21swapper/021:19:340
6545213941,81sleep30-21swapper/323:39:343
1381821395,78sleep30-21swapper/322:21:253
12023213954,61sleep30-21swapper/320:34:073
12023213954,61sleep30-21swapper/320:34:073
26401213661,35sleep30-21swapper/319:34:363
22750213556,64sleep322810-21if_err_eth022:49:233
12435213311,98sleep30-21swapper/323:59:283
16024213011,37sleep30-21swapper/320:44:363
13803213018,90sleep113871-21fschecks_time00:04:221
12740212936,34sleep20-21swapper/222:19:142
4107212729,80sleep3281-21dbus-daemon23:34:043
1688212714,97sleep31754-21switchtime19:59:353
1688212714,97sleep31754-21switchtime19:59:353
5613212615,19sleep10-21swapper/123:39:031
29279212210,99sleep229356-21find19:44:362
1469421228,90sleep00-21swapper/022:24:290
22219211916,85sleep30-21swapper/319:24:063
891821188,72sleep38967-21wc20:24:063
6168211858,37sleep30-21swapper/320:14:253
21210211653,50sleep321226-21latency_hist00:29:033
20318211613,87sleep219924-21/usr/sbin/munin00:24:262
11175211514,78sleep211239-21processes20:29:342
11175211514,78sleep211239-21processes20:29:342
5100211466,25sleep30-21swapper/321:54:253
23010211229,18sleep30-21swapper/319:24:353
31930211116,26sleep20-21swapper/223:19:062
29983211114,24sleep30-21swapper/319:49:053
25945211120,71sleep225918-21apt-get22:59:322
24195211012,19sleep124199-21diskstats22:54:221
7212210819,60sleep17350-21grep21:59:361
2948621088,25sleep30-21swapper/323:09:303
19879210832,62sleep30-21swapper/322:39:343
8539210512,30sleep28545-21ntp_states22:04:292
31320210524,59sleep30-21swapper/321:34:513
31320210524,59sleep30-21swapper/321:34:513
27248210561,24sleep30-21swapper/323:04:053
22370210472,15sleep30-21swapper/322:49:073
24299210318,50sleep30-21swapper/300:38:563
704121028,17sleep30-21swapper/321:59:333
31177210210,19sleep00-21swapper/021:34:150
31177210210,19sleep00-21swapper/021:34:150
24001210122,17sleep30-21swapper/319:29:153
18629210118,50sleep30-21swapper/322:35:223
268521009,18sleep20-21swapper/220:04:182
10023210018,47sleep30-21swapper/323:50:403
2803429815,61sleep027461-21/usr/sbin/munin23:04:340
1847829822,15sleep30-21swapper/320:54:173
168102985,10sleep30-21swapper/322:30:053
168102985,10sleep30-21swapper/322:30:053
3118929719,59sleep231174-21apt-get21:34:212
3118929719,59sleep231174-21apt-get21:34:212
1240029713,68sleep212434-21irqstats23:59:272
1118329719,14sleep30-21swapper/322:14:193
316862965,29sleep30-21swapper/323:16:573
2228329616,64sleep122409-21cat21:04:331
1702129614,67sleep117023-21sshd19:08:341
3075329414,63sleep130792-21/usr/sbin/munin23:14:241
3090029220,52sleep130944-21ntpq19:50:201
1808729224,45sleep018114-21modprobe00:19:030
3127729111,58sleep031431-21/usr/sbin/munin23:14:360
1487029117,54sleep10-21swapper/122:24:341
511529011,66sleep35233-21sort20:09:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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