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2025-05-09 - 05:42

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 Fri May 09, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41918462225190,22sleep40-21swapper/419:07:504
41919472220165,19sleep10-21swapper/119:09:151
41917642216184,21sleep50-21swapper/519:06:385
41917032216183,21sleep00-21swapper/019:05:450
41917572211173,24sleep70-21swapper/719:06:327
41918452210179,20sleep30-21swapper/319:07:503
41917832208175,21sleep60-21swapper/619:06:556
41919662202168,21sleep20-21swapper/219:09:332
419224399300,29cyclictest0-21swapper/321:10:133
419224399260,25cyclictest0-21swapper/323:35:193
4192243992519,5cyclictest131042-21systemctl23:00:003
419224399250,24cyclictest0-21swapper/321:40:133
419224099250,24cyclictest128598-21apt-get22:55:132
419224099250,24cyclictest0-21swapper/200:25:132
4192254992421,2cyclictest165361-21munin-run00:00:007
419225499240,23cyclictest0-21swapper/722:20:117
4192245992421,2cyclictest24586-21perf19:55:014
419224599240,2cyclictest85155-21kworker/u16:0+ext4-rsv-conversion22:10:004
419224599240,2cyclictest85155-21kworker/u16:0+ext4-rsv-conversion22:10:004
419224599240,22cyclictest0-21swapper/423:10:014
4192243992419,4cyclictest151017-21munin-run23:35:003
4192243992418,5cyclictest4597-21munin-run19:20:003
419224399240,3cyclictest0-21swapper/320:45:143
419224399240,24cyclictest93679-21awk21:55:003
419224399240,23cyclictest0-21swapper/323:50:113
419224399240,23cyclictest0-21swapper/322:05:143
419224399240,23cyclictest0-21swapper/322:05:143
419224399240,23cyclictest0-21swapper/320:55:143
4192240992422,1cyclictest0-21swapper/220:20:002
419223899240,22cyclictest0-21swapper/122:10:011
419223899240,22cyclictest0-21swapper/122:10:001
4192254992323,0cyclictest0-21swapper/723:40:137
4192254992321,1cyclictest99660-21awk22:05:007
4192254992321,1cyclictest99660-21awk22:05:007
4192254992320,2cyclictest27499-21apt-config20:00:007
419225499230,22cyclictest93672-21basename21:55:017
419225499230,22cyclictest41984-21perf20:25:007
419225499230,22cyclictest13166-21munin-run19:35:007
419225499230,22cyclictest0-21swapper/720:55:207
419225499230,22cyclictest0-21swapper/719:35:137
4192251992321,1cyclictest27434-21munin-run20:00:006
4192251992321,1cyclictest0-21swapper/621:20:006
419225199230,1cyclictest125322-21apt22:50:006
4192249992322,0cyclictest0-21swapper/519:20:095
419224999230,22cyclictest82254-21awk21:35:015
419224999230,0cyclictest0-21swapper/500:05:125
4192245992323,0cyclictest0-21swapper/421:30:134
419224599230,2cyclictest185553-21idleruntime-cro00:34:594
419224599230,22cyclictest0-21swapper/421:55:004
419224399230,2cyclictest0-21swapper/323:05:133
419224399230,22cyclictest0-21swapper/322:20:113
4192240992321,1cyclictest0-21swapper/219:40:002
4192240992320,2cyclictest50806-21sleep20:40:002
419224099230,2cyclictest108190-21sendmail22:20:002
419224099230,22cyclictest97215-21apt-get22:00:142
419224099230,22cyclictest97215-21apt-get22:00:142
419224099230,22cyclictest0-21swapper/223:45:132
419224099230,22cyclictest0-21swapper/223:45:012
419224099230,22cyclictest0-21swapper/222:35:132
419224099230,22cyclictest0-21swapper/220:45:002
419224099230,1cyclictest0-21swapper/200:05:132
4192238992322,1cyclictest0-21swapper/121:30:131
4192238992321,1cyclictest0-21swapper/120:25:001
419223899230,22cyclictest185557-21perf00:34:591
419223899230,22cyclictest111482-21apt-get22:25:141
419223899230,22cyclictest0-21swapper/121:55:101
419223899230,22cyclictest0-21swapper/100:09:591
419223499230,22cyclictest0-21swapper/023:50:120
419223499230,22cyclictest0-21swapper/021:05:010
4192254992222,0cyclictest0-21swapper/721:55:107
4192254992221,1cyclictest48357-21apt-get20:35:117
4192254992220,1cyclictest54082-21apt-get20:45:147
4192254992220,1cyclictest0-21swapper/722:30:007
4192254992219,2cyclictest2278910-21systemd-journal20:35:007
419225499220,21cyclictest180275-21apt-get00:25:137
419225499220,21cyclictest0-21swapper/722:40:127
419225499220,21cyclictest0-21swapper/719:20:097
419225499220,21cyclictest0-21swapper/700:30:137
419225499220,1cyclictest30984-21apt-get20:05:147
4192251992221,1cyclictest94340-21apt-get21:55:116
4192251992221,1cyclictest0-21swapper/621:55:006
419225199220,21cyclictest0-21swapper/623:40:136
419225199220,21cyclictest0-21swapper/623:15:116
419225199220,21cyclictest0-21swapper/622:20:116
419225199220,21cyclictest0-21swapper/621:30:006
419225199220,21cyclictest0-21swapper/619:10:116
419225199220,1cyclictest30566-21perf20:05:006
419225199220,1cyclictest128598-21apt-get22:55:136
4192249992221,1cyclictest68349-21apt-get21:10:135
4192249992220,1cyclictest153868-21munin-run23:40:005
419224999220,21cyclictest111482-21apt-get22:25:135
419224999220,21cyclictest0-21swapper/522:20:115
419224999220,1cyclictest0-21swapper/523:20:175
419224999220,1cyclictest0-21swapper/520:55:005
4192245992220,1cyclictest0-21swapper/419:45:134
419224599220,21cyclictest137165-21apt-get23:10:124
419224599220,21cyclictest0-21swapper/423:50:114
419224599220,21cyclictest0-21swapper/423:35:124
419224599220,21cyclictest0-21swapper/422:50:014
419224599220,21cyclictest0-21swapper/419:10:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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