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2025-04-29 - 23:55

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 Tue Apr 29, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1172682231169,21sleep00-21swapper/007:09:020
1170462228171,19sleep20-21swapper/207:05:512
1171322219161,18sleep40-21swapper/407:07:054
1170562219179,27sleep30-21swapper/307:06:003
1170812216178,25sleep10-21swapper/107:06:221
1172002208174,21sleep70-21swapper/707:08:057
1171152208178,19sleep50-21swapper/507:06:505
1148902208175,21sleep60-21swapper/607:05:066
11764299320,18cyclictest158412-21cron08:20:007
117639992721,5cyclictest0-21swapper/608:50:016
11762499270,26cyclictest261706-21cron11:40:002
11764299261,24cyclictest246219-21systemd-run11:10:007
11763999260,25cyclictest0-21swapper/611:15:006
11763999260,25cyclictest0-21swapper/608:30:006
117633992625,1cyclictest147047-21sendmail-msp08:00:004
11764299250,24cyclictest184054-21munin-run09:00:007
11764299250,24cyclictest0-21swapper/710:00:137
11764299240,23cyclictest0-21swapper/711:35:137
11764299240,23cyclictest0-21swapper/708:27:267
117639992421,3cyclictest0-21swapper/611:15:146
11762499240,23cyclictest0-21swapper/210:15:112
11762099240,23cyclictest0-21swapper/110:55:141
117642992322,1cyclictest0-21swapper/710:50:087
117642992321,1cyclictest186914-21idleruntime-cro09:05:007
117642992321,1cyclictest0-21swapper/709:50:087
117642992321,1cyclictest0-21swapper/709:35:017
117642992320,2cyclictest198604-21perf09:25:007
11764299230,22cyclictest277501-21munin-run12:15:007
11764299230,22cyclictest249308-21sleep11:15:007
11764299230,22cyclictest0-21swapper/709:35:127
11764299230,1cyclictest280349-21turbostat12:20:007
117639992321,2cyclictest0-21swapper/611:40:136
117639992320,3cyclictest0-21swapper/610:20:146
11763999230,23cyclictest149879-21munin-run08:05:006
11763799230,22cyclictest0-21swapper/510:35:015
11763799230,22cyclictest0-21swapper/507:35:145
11763799230,1cyclictest0-21swapper/512:35:135
11763799230,1cyclictest0-21swapper/511:10:085
117633992323,0cyclictest0-21swapper/408:27:064
11763399230,22cyclictest0-21swapper/408:40:164
11762999230,22cyclictest190187-21apt-get09:10:153
11762999230,22cyclictest0-21swapper/310:00:143
11762999230,1cyclictest164616-21dpkg-deb08:27:093
117624992321,1cyclictest286811-21apt12:34:592
117624992321,1cyclictest205075-21awk09:40:012
11762499230,22cyclictest193296-21apt-get09:15:132
11762499230,22cyclictest164259-21dpkg08:27:062
11762499230,22cyclictest0-21swapper/207:40:142
11762499230,0cyclictest0-21swapper/211:00:132
117620992321,1cyclictest0-21swapper/107:20:001
11762099230,22cyclictest0-21swapper/109:00:001
11762099230,1cyclictest218388-21apt-get10:10:081
117618992322,1cyclictest0-21swapper/010:30:090
117618992321,1cyclictest144576-21apt-get07:55:140
11761899230,22cyclictest164644-21dpkg-deb08:27:080
117642992222,0cyclictest0-21swapper/708:50:187
117642992221,1cyclictest0-21swapper/711:30:087
117642992221,1cyclictest0-21swapper/708:10:157
117642992221,0cyclictest0-21swapper/708:45:137
117642992220,1cyclictest0-21swapper/710:25:017
11764299220,21cyclictest87-21ksoftirqd/708:00:177
11764299220,21cyclictest0-21swapper/712:05:007
11764299220,21cyclictest0-21swapper/711:00:137
11764299220,21cyclictest0-21swapper/710:35:137
11764299220,21cyclictest0-21swapper/710:30:087
11764299220,1cyclictest223677-21sendmail10:20:017
11763999220,21cyclictest0-21swapper/612:10:146
11763999220,21cyclictest0-21swapper/611:50:086
11763999220,21cyclictest0-21swapper/610:30:076
11763999220,21cyclictest0-21swapper/610:10:086
11763999220,21cyclictest0-21swapper/608:10:156
11763999220,21cyclictest0-21swapper/607:55:146
117637992222,0cyclictest0-21swapper/507:55:135
117637992220,1cyclictest245431-21turbostat.cron11:05:005
11763799220,21cyclictest0-21swapper/510:35:135
11763799220,21cyclictest0-21swapper/508:45:135
11763799220,21cyclictest0-21swapper/508:20:145
11763799220,1cyclictest0-21swapper/509:35:125
11763799220,1cyclictest0-21swapper/507:50:175
11763399220,21cyclictest0-21swapper/410:40:154
11763399220,21cyclictest0-21swapper/409:35:114
11763399220,1cyclictest178091-21munin-run08:50:004
117629992221,1cyclictest0-21swapper/308:00:133
117629992220,1cyclictest265757-21apt-get11:50:083
11762999220,21cyclictest0-21swapper/312:35:133
11762999220,21cyclictest0-21swapper/310:20:143
117624992221,1cyclictest0-21swapper/209:55:002
117624992220,1cyclictest178777-21apt-get08:50:172
117624992220,1cyclictest0-21swapper/210:35:012
11762499220,21cyclictest262167-21apt-get11:40:132
11762499220,21cyclictest0-21swapper/211:20:122
11762499220,21cyclictest0-21swapper/210:30:012
11762499220,1cyclictest147017-21run-parts08:00:002
117620992221,1cyclictest280795-21apt-get12:20:141
117620992221,1cyclictest195732-21munin-run09:20:001
117620992221,1cyclictest0-21swapper/111:05:001
117620992220,1cyclictest199365-21awk09:30:011
117620992220,1cyclictest135588-21munin-run07:40:001
11762099220,21cyclictest237289-21apt-get10:50:071
11762099220,21cyclictest230829-21apt-get10:35:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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