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2026-01-10 - 08:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #4

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.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack8slot4s.osadl.org (updated Sat Jan 10, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1342282245176,23sleep40-21swapper/419:07:534
1341172232168,21sleep30-21swapper/319:06:173
1343262223166,18sleep70-21swapper/719:09:177
1341592211177,22sleep00-21swapper/019:06:530
1340722211182,19sleep50-21swapper/519:05:375
1342592210177,21sleep60-21swapper/619:08:206
1341802210183,17sleep10-21swapper/119:07:101
1319272208175,21sleep20-21swapper/219:05:032
13461899290,28cyclictest845-21runrttasks23:20:116
13461899290,22cyclictest0-21swapper/621:15:006
134606992928,1cyclictest249676-21fwupd22:25:452
13460299290,1cyclictest0-21swapper/121:35:001
13460299280,22cyclictest0-21swapper/121:20:001
13461899270,26cyclictest0-21swapper/600:25:106
13461399270,1cyclictest304854-21awk00:05:015
13460299260,2cyclictest325089-21munin-run00:40:001
13460299260,0cyclictest0-21swapper/119:45:111
13460699250,24cyclictest178322-21apt-get20:25:012
13460699250,23cyclictest175192-21dump-pmu-power20:20:002
13460299250,24cyclictest290524-21dump-pmu-power23:40:001
13460299250,24cyclictest0-21swapper/122:40:121
134618992420,3cyclictest0-21swapper/620:35:126
13461899240,0cyclictest0-21swapper/619:35:116
13461299240,23cyclictest0-21swapper/420:15:004
13461299240,23cyclictest0-21swapper/419:45:004
134608992423,1cyclictest0-21swapper/320:05:003
13460299240,21cyclictest0-21swapper/119:15:101
13462099230,22cyclictest319387-21munin-run00:30:007
13462099230,22cyclictest244281-21run-parts22:20:007
134618992321,1cyclictest0-21swapper/622:25:116
134618992320,2cyclictest221858-21apt-get21:40:116
134618992318,4cyclictest138483-21apt-get19:15:116
134618992315,7cyclictest255954-21cron22:39:596
13461399230,2cyclictest215723-21perf21:30:005
13461399230,23cyclictest0-21swapper/519:15:005
13461399230,22cyclictest290955-21apt-get23:40:125
134612992321,1cyclictest152350-21munin-run19:40:004
13461299230,1cyclictest187144-21munin-run20:40:004
13461299230,1cyclictest167061-21apt-get20:05:124
134608992321,1cyclictest0-21swapper/322:10:013
13460899230,22cyclictest262378-21apt-get22:50:113
13460899230,1cyclictest0-21swapper/321:00:123
134606992321,1cyclictest0-21swapper/222:15:112
134606992321,1cyclictest0-21swapper/200:00:002
13460699230,22cyclictest255965-21apt-get22:40:012
13460699230,22cyclictest0-21swapper/223:15:132
13460699230,22cyclictest0-21swapper/200:30:112
13460699230,1cyclictest0-21swapper/219:35:122
134602992320,3cyclictest0-21swapper/100:30:111
134602992319,4cyclictest0-21swapper/120:30:011
134602992319,3cyclictest279528-21apt-get23:20:111
134602992319,3cyclictest0-21swapper/122:45:121
13460299230,22cyclictest0-21swapper/123:40:101
134598992321,1cyclictest192868-21munin-run20:50:000
134598992321,1cyclictest0-21swapper/020:00:000
13459899230,22cyclictest0-21swapper/021:20:100
13459899230,22cyclictest0-21swapper/021:10:110
13459899230,22cyclictest0-21swapper/000:00:120
134620992220,1cyclictest213282-21apt-get21:25:127
134620992220,1cyclictest0-21swapper/721:15:117
134620992220,1cyclictest0-21swapper/721:10:117
134620992220,1cyclictest0-21swapper/720:45:127
13462099220,22cyclictest0-21swapper/723:15:137
13462099220,21cyclictest175206-21dump-pmu-power20:20:007
13462099220,21cyclictest0-21swapper/723:25:127
13462099220,21cyclictest0-21swapper/722:40:027
13462099220,21cyclictest0-21swapper/722:00:097
13462099220,21cyclictest0-21swapper/720:40:007
134618992221,1cyclictest314097-21apt-get00:20:116
134618992221,1cyclictest285232-21apt-get23:30:136
134618992221,1cyclictest0-21swapper/623:45:116
134618992220,2cyclictest0-21swapper/622:40:026
134618992220,2cyclictest0-21swapper/620:35:016
134618992220,1cyclictest0-21swapper/620:20:006
134618992219,3cyclictest0-21swapper/620:10:126
134618992219,3cyclictest0-21swapper/619:55:126
13461899220,21cyclictest267678-21awk23:00:006
13461899220,21cyclictest0-21swapper/620:20:016
13461899220,21cyclictest0-21swapper/600:15:006
13461899220,1cyclictest276655-21apt-get23:15:136
13461399220,21cyclictest230412-21apt-get21:55:105
13461399220,21cyclictest144213-21apt-get19:25:145
13461399220,21cyclictest0-21swapper/522:15:115
13461399220,21cyclictest0-21swapper/520:55:115
13461399220,21cyclictest0-21swapper/520:50:115
13461399220,21cyclictest0-21swapper/500:35:105
13461399220,1cyclictest268102-21apt-get23:00:125
13461399220,1cyclictest201854-21apt-get21:05:125
13461299220,22cyclictest0-21swapper/422:19:594
13461299220,22cyclictest0-21swapper/420:35:004
13461299220,21cyclictest0-21swapper/422:50:124
13461299220,21cyclictest0-21swapper/421:00:114
13461299220,21cyclictest0-21swapper/400:30:124
134608992222,0cyclictest0-21swapper/320:20:113
134608992220,1cyclictest0-21swapper/320:40:103
13460899220,22cyclictest158061-21idleruntime-cro19:50:003
13460899220,22cyclictest143787-21turbostat19:25:003
13460899220,21cyclictest0-21swapper/323:20:113
13460899220,21cyclictest0-21swapper/319:35:113
134606992221,1cyclictest0-21swapper/221:25:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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