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2026-02-28 - 17:40
[ 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 28, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
701283015,796sleep0742-21/usr/sbin/munin09:59:550
708527026,684sleep17124-21ntpq10:19:211
708527026,684sleep17124-21ntpq10:19:211
27669263712,609sleep227700-21/usr/sbin/munin07:59:232
1600523460,11sleep20-21swapper/212:29:282
1017229811,236sleep11081-21sendmail_mailqu10:00:041
1028322969,272sleep110415-21sort12:14:011
22899227971,110sleep122963-21cat07:44:211
1587222439,18sleep10-21swapper/112:29:281
17685223057,56sleep10-21swapper/110:54:171
285832227107,22sleep10-21swapper/111:29:171
285832227107,22sleep10-21swapper/111:29:171
32377222242,128sleep132443-21http09:58:591
5431221939,113sleep10-21swapper/111:59:121
12631221614,184sleep112717-21latency_hist07:14:011
2009022049,180sleep020186-21sed07:34:350
11066219668,114sleep111151-21latency_hist07:09:011
32598219015,126sleep10-21swapper/108:14:321
2022218915,158sleep32117-21latency_hist11:49:013
18527217912,127sleep118325-21latency_hist12:39:001
18527217912,127sleep118325-21latency_hist12:39:001
19255217435,26sleep119312-21grep10:59:181
16574217096,48sleep10-21swapper/107:24:191
1258216811,137sleep11330-21switchtime11:44:271
16495216711,139sleep016555-21fschecks_time07:24:180
4176216422,24sleep10-21swapper/108:29:011
32440215713,129sleep332524-21grep08:14:303
13779215417,53sleep10-21swapper/108:59:011
29281215211,127sleep129308-21latency_hist09:48:581
26948215052,16sleep10-21swapper/111:24:121
26948215052,16sleep10-21swapper/111:24:121
17212214922,102sleep017277-21uniq09:09:170
17212214922,102sleep017277-21uniq09:09:170
6424214623,105sleep10-21swapper/108:34:261
10534214434,89sleep010051-21apt-get12:14:090
17594214344,47sleep10-21swapper/109:09:261
17594214344,47sleep10-21swapper/109:09:261
2932121419,110sleep128829-21/usr/sbin/munin08:04:271
2429821415,11sleep20-21swapper/207:49:182
24151214041,80sleep10-21swapper/107:49:091
7264213821,17sleep10-21swapper/112:04:371
3037421389,84sleep10-21swapper/108:09:071
1831421380,18sleep318856-21kworker/u8:012:38:573
1831421380,18sleep318856-21kworker/u8:012:38:573
2339213513,105sleep02362-21/usr/sbin/munin08:24:000
27303213421,96sleep10-21swapper/107:59:141
24006213315,23sleep10-21swapper/111:14:191
22174213310,109sleep122211-21sed09:24:241
22174213310,109sleep122211-21sed09:24:241
15924213237,81sleep10-21swapper/109:04:211
24444213112,106sleep024154-21/usr/sbin/munin07:49:200
2483213023,29sleep20-21swapper/208:24:022
19167212838,51sleep00-21swapper/010:59:130
9998212710,99sleep10-21swapper/110:29:181
9998212710,99sleep10-21swapper/110:29:181
10994212739,65sleep311026-21basename07:08:583
15132212634,76sleep115160-21kernelversion07:19:221
1389721256,14sleep10-21swapper/112:24:191
23959212421,25sleep10-21swapper/109:29:281
23959212421,25sleep10-21swapper/109:29:281
1187221247,77sleep10-21swapper/108:50:291
1187221247,77sleep10-21swapper/108:50:291
8793212328,16sleep10-21swapper/108:43:591
2399212328,19sleep12482-21apt-config08:24:011
17021212214,94sleep317139-21cat07:24:293
16137212047,25sleep10-21swapper/110:49:211
1979521199,16sleep10-21swapper/107:34:281
8352211617,18sleep10-21swapper/110:24:181
4616211414,82sleep04669-21interrupts08:29:170
19941211243,49sleep10-21swapper/109:18:591
12767211215,78sleep312913-21modprobe10:39:013
2647621118,28sleep126541-21ls09:39:131
2647621118,28sleep126541-21ls09:39:131
12313211127,59sleep312345-21fschecks_time12:19:243
6697211016,80sleep36755-21apt-config12:03:583
21853210940,18sleep10-21swapper/107:39:321
21640210819,30sleep30-21swapper/307:39:303
20720210751,14sleep10-21swapper/111:04:101
515821058,83sleep15178-21cat11:59:001
515821058,83sleep15178-21cat11:59:001
11582210518,61sleep10-21swapper/110:34:191
31300210415,72sleep131355-21awk11:38:581
30880210431,56sleep30-21swapper/309:54:003
2930721046,13sleep20-21swapper/211:29:302
2930721046,13sleep20-21swapper/211:29:302
28760210414,75sleep028778-21uname11:29:200
28760210414,75sleep028778-21uname11:29:200
2587210445,17sleep10-21swapper/110:04:281
1581021039,83sleep115885-21latency_hist10:49:001
2226521027,81sleep00-21swapper/009:24:270
2226521027,81sleep00-21swapper/009:24:270
26255210016,20sleep20-21swapper/207:54:272
3188429922,60sleep331592-21/usr/sbin/munin11:39:203
2548929815,68sleep325545-21fschecks_count11:19:183
1251429817,61sleep212406-21/usr/sbin/munin08:54:172
93572977,36sleep10-21swapper/108:44:351
293352979,71sleep029467-21latency_hist09:49:010
2528829717,58sleep30-21swapper/309:34:233
2528829717,58sleep30-21swapper/309:34:233
1327729712,28sleep10-21swapper/107:14:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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