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2026-01-29 - 03:15
[ 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 #e, slot #6

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 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot6s.osadl.org (updated Wed Jan 28, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1318854999747,46cyclictest0-21swapper/009:55:100
1318857998816,67cyclictest1358296-21apt-get11:00:022
131885799856,3cyclictest0-21swapper/212:15:012
1318857998015,37cyclictest1343124-21/usr/sbin/munin09:30:172
1318857997315,43cyclictest1353063-21apt-get10:30:012
1318857996627,32cyclictest1319609-21grep07:10:272
131885799662,17cyclictest0-21swapper/211:30:022
1318854996559,4cyclictest0-21swapper/012:05:110
131885799624,13cyclictest1347085-21grep09:50:292
1318857996227,29cyclictest0-21swapper/208:20:292
131885799622,17cyclictest1359446-21apt-get11:05:152
1318857996032,22cyclictest0-21swapper/212:25:292
131885799592,15cyclictest1357659-21apt-get10:55:142
1318857995831,23cyclictest1283-21cron08:55:002
1318855995837,10cyclictest231ktimers/108:35:011
131885799577,41cyclictest0-21swapper/208:25:262
1318857995710,38cyclictest0-21swapper/207:45:272
131885599572,20cyclictest24-21ksoftirqd/110:15:011
1318857995622,26cyclictest0-21swapper/211:50:272
131885799561,49cyclictest1353976-21sshd10:32:222
1318857995614,34cyclictest1372884-21grep12:20:282
1318857995611,38cyclictest0-21swapper/210:15:202
131885799559,37cyclictest0-21swapper/209:00:282
1318857995521,25cyclictest0-21swapper/208:55:282
131885499551,52cyclictest0-21swapper/007:30:250
131885799542,8cyclictest1328461-21/usr/sbin/munin08:00:282
1318854995448,4cyclictest0-21swapper/007:25:170
131885799539,34cyclictest0-21swapper/210:10:172
131885799537,38cyclictest0-21swapper/212:30:262
131885799536,38cyclictest0-21swapper/210:05:282
131885799533,7cyclictest1345631-21grep09:45:022
1318857995312,33cyclictest0-21swapper/207:45:012
131885799531,10cyclictest1340907-21/usr/sbin/munin09:15:262
131885799528,36cyclictest0-21swapper/209:25:252
131885799527,37cyclictest0-21swapper/208:10:292
131885799526,38cyclictest0-21swapper/212:15:282
131885799524,5cyclictest1365722-21/usr/sbin/munin11:40:262
131885799523,5cyclictest0-21swapper/208:05:182
131885799522,8cyclictest1366197-21munin-node11:45:092
131885799522,11cyclictest1339918-21grep09:10:202
131885799521,9cyclictest1321210-21/usr/sbin/munin07:20:242
131885799521,8cyclictest1322362-21/usr/sbin/munin07:25:282
1318857995216,26cyclictest0-21swapper/207:35:012
131885799521,13cyclictest1338616-21apt-get09:05:062
131885799521,10cyclictest1344016-21/usr/sbin/munin09:35:152
131885799518,34cyclictest0-21swapper/207:35:212
131885799516,36cyclictest0-21swapper/208:30:282
131885799515,38cyclictest0-21swapper/211:55:192
131885799513,7cyclictest1320445-21meminfo07:15:232
131885799512,6cyclictest1362823-21apt-get11:25:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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