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2025-05-09 - 05:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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 rackeslot5s.osadl.org (updated Fri May 09, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
361299250,24cyclictest18552-21apt-get00:05:102
361299250,24cyclictest0-21swapper/200:05:002
361599240,23cyclictest0-21swapper/320:40:123
3608992421,2cyclictest313-21systemd-journal00:34:591
361599230,22cyclictest22139-21idleruntime-cro21:59:593
361599230,0cyclictest0-21swapper/300:30:153
3612992323,0cyclictest0-21swapper/223:10:122
3612992320,2cyclictest28567-21latency_hist23:20:002
361299230,22cyclictest583-21avahi-daemon20:15:102
361299230,22cyclictest12556-21awk21:39:592
360899230,22cyclictest0-21swapper/121:00:001
3604992321,1cyclictest6164-21munin-run23:40:000
3604992321,1cyclictest25707-21latency_hist21:00:000
3615992220,1cyclictest28565-21sendmail23:20:003
3615992220,1cyclictest15667-21cron20:40:003
361599220,21cyclictest4118-21apt-get22:30:003
361599220,21cyclictest31732-21munin-run22:20:003
361599220,21cyclictest16164-21apt-get00:00:133
361599220,21cyclictest0-21swapper/322:35:103
361599220,21cyclictest0-21swapper/322:05:153
361599220,21cyclictest0-21swapper/320:30:013
361599220,21cyclictest0-21swapper/300:35:123
361599220,1cyclictest6430-21apt-get23:40:153
361599220,1cyclictest4017-21apt-get23:35:163
361599220,1cyclictest16827-21apt-get22:55:123
3612992222,0cyclictest0-21swapper/219:15:122
3612992220,1cyclictest28152-21apt-get00:25:142
3612992220,1cyclictest0-21swapper/219:25:002
3612992219,2cyclictest313-21systemd-journal21:15:002
361299220,21cyclictest31625-21apt-get23:25:112
361299220,21cyclictest313-21systemd-journal21:49:592
361299220,21cyclictest23343-21apt-get00:15:152
361299220,21cyclictest0-21swapper/220:45:112
361299220,21cyclictest0-21swapper/220:00:122
361299220,1cyclictest28085-21awk21:05:002
361299220,1cyclictest23550-21apt-get19:50:112
361299220,1cyclictest0-21swapper/220:10:022
361299220,1cyclictest0-21swapper/219:40:002
3608992221,0cyclictest8721-21apt-get19:20:101
3608992221,0cyclictest0-21swapper/100:10:131
360899220,21cyclictest5994-21dump-pmu-power19:15:001
360899220,21cyclictest472-21apt-get00:35:111
360899220,21cyclictest28839-21apt-get23:20:131
360899220,21cyclictest14913-21cron21:45:001
360899220,21cyclictest13507-21apt-get19:30:101
360899220,21cyclictest13295-21cron20:35:001
360899220,21cyclictest0-21swapper/123:00:121
360899220,21cyclictest0-21swapper/122:25:111
360899220,21cyclictest0-21swapper/120:05:001
360899220,1cyclictest22119-21cron22:00:001
3604992222,0cyclictest0-21swapper/023:55:120
3604992222,0cyclictest0-21swapper/019:35:020
360499220,21cyclictest25940-21apt-get19:55:090
360499220,21cyclictest13244-21munin-plugin-st19:29:590
360499220,21cyclictest0-21swapper/022:20:130
360499220,1cyclictest3745-21turbostat.cron23:34:590
360499220,1cyclictest26133-21awk23:15:000
3615992121,0cyclictest32008-21apt-get22:20:133
3615992120,1cyclictest4789-21apt-get22:30:133
3615992119,1cyclictest24029-21apt-get23:10:113
361599210,20cyclictest0-21swapper/319:15:123
361599210,1cyclictest30974-21munin-run23:25:003
361599210,1cyclictest0-21swapper/320:10:023
361599210,0cyclictest0-21swapper/319:20:103
361599210,0cyclictest0-21swapper/300:15:153
3612992120,1cyclictest0-21swapper/222:30:122
3612992120,0cyclictest0-21swapper/222:10:092
3612992120,0cyclictest0-21swapper/221:40:152
3612992119,1cyclictest25721-21chrt21:00:002
361299210,20cyclictest0-21swapper/223:55:122
361299210,20cyclictest0-21swapper/200:20:122
361299210,0cyclictest30745-21apt-get20:05:092
361299210,0cyclictest0-21swapper/220:35:072
3608992120,1cyclictest721-21apt-get21:15:121
3608992120,1cyclictest21638-21apt-get23:05:121
3608992120,1cyclictest0-21swapper/123:40:141
3608992120,1cyclictest0-21swapper/121:50:111
3608992119,1cyclictest3163-21apt-get21:20:111
3608992119,1cyclictest16573-21grep22:55:001
3608992119,1cyclictest0-21swapper/121:35:001
3608992118,2cyclictest7702-21idleruntime-cro21:29:591
360899210,21cyclictest0-21swapper/123:50:121
360899210,21cyclictest0-21swapper/123:25:031
360899210,21cyclictest0-21swapper/100:20:121
360899210,20cyclictest15985-21apt-get20:40:121
360899210,20cyclictest0-21swapper/123:55:121
360899210,0cyclictest18714-21apt-get19:40:121
360899210,0cyclictest0-21swapper/119:35:081
3604992121,0cyclictest0-21swapper/021:20:110
3604992119,1cyclictest23284-21idleruntime-cro19:50:010
360499210,21cyclictest0-21swapper/022:10:080
360499210,21cyclictest0-21swapper/021:00:130
360499210,20cyclictest0-21swapper/021:55:120
360499210,1cyclictest413-21apt-get20:10:000
360499210,0cyclictest18773-21apt-get20:45:120
361599203,16cyclictest0-21swapper/319:10:113
3615992020,0cyclictest0-21swapper/321:05:093
3615992020,0cyclictest0-21swapper/319:25:103
3615992018,2cyclictest18426-21tr19:40:003
3615992018,1cyclictest23295-21wc19:50:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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