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2024-07-27 - 07:35

OSADL QA Farm on Real-time of Mainline Linux

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

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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  Congatec
Click here to display the system's profile data.
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 rackeslot8s.osadl.org (updated Sat Jul 27, 2024 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
327075399748741,3cyclictest191rcu_preempt3
327075399746738,7cyclictest3678809-21kworker/3:2+events3
327075399744742,1cyclictest3327654-21kworker/3:1+events3
327075399744736,6cyclictest3678809-21kworker/3:2+events3
327075399741736,4cyclictest3678809-21kworker/3:2+events3
327075399740736,3cyclictest3327654-21kworker/3:1+events3
327075399739733,5cyclictest3377131-21turbostat3
327073799738734,3cyclictest3252362-21kworker/1:0+events1
327073799738734,3cyclictest3252362-21kworker/1:0+events1
327073799737733,3cyclictest3252362-21kworker/1:0+events1
327073799737733,3cyclictest3252362-21kworker/1:0+events1
327075399736732,3cyclictest3573800-21kworker/3:0+events3
327075399736730,5cyclictest3327654-21kworker/3:1+events3
327073799735731,3cyclictest3252362-21kworker/1:0+events1
327075399732728,3cyclictest3327654-21kworker/3:1+events3
327075399730726,3cyclictest3327654-21kworker/3:1+events3
327075399729726,2cyclictest3245886-21kworker/3:2+events3
327073799729725,3cyclictest3252362-21kworker/1:0+events1
327075399728724,3cyclictest3602723-21kworker/3:1+events3
327075399727722,4cyclictest3327654-21kworker/3:1+events3
327075399724718,5cyclictest3534810-21turbostat3
327075399721719,1cyclictest3327654-21kworker/3:1+events3
327075399721715,5cyclictest3327654-21kworker/3:1+events3
327075399720716,3cyclictest3327654-21kworker/3:1+events3
327075399717713,3cyclictest3327654-21kworker/3:1+events3
327075399717712,4cyclictest3327654-21kworker/3:1+events3
327075399716712,3cyclictest3327654-21kworker/3:1+events3
327075399714711,2cyclictest3327654-21kworker/3:1+events3
327075399713710,2cyclictest3602723-21kworker/3:1+events3
327075399712707,4cyclictest3327654-21kworker/3:1+events3
327075399711706,4cyclictest3602723-21kworker/3:1+events3
327075399711706,4cyclictest3327654-21kworker/3:1+events3
327075399710707,2cyclictest3573800-21kworker/3:0+events3
327075399710706,3cyclictest3327654-21kworker/3:1+events3
327075399710705,4cyclictest3602723-21kworker/3:1+events3
327075399709705,3cyclictest3678809-21kworker/3:2+events3
327075399709705,3cyclictest3573800-21kworker/3:0+events3
327075399708706,1cyclictest3327654-21kworker/3:1+events3
327075399708704,3cyclictest3327654-21kworker/3:1+events3
327075399708704,3cyclictest3245886-21kworker/3:2+events3
327075399708702,5cyclictest3602723-21kworker/3:1+events3
327075399706702,3cyclictest3327654-21kworker/3:1+events3
327075399706701,4cyclictest3309706-21turbostat3
327075399705700,4cyclictest3245886-21kworker/3:2+events3
327075399705698,5cyclictest3602723-21kworker/3:1+events3
327075399703699,3cyclictest3557428-21kworker/3:2+events3
327075399701697,3cyclictest3602723-21kworker/3:1+events3
327075399701696,4cyclictest3602723-21kworker/3:1+events3
327075399700698,1cyclictest3678809-21kworker/3:2+events3
327075399699695,3cyclictest3327654-21kworker/3:1+events3
327075399698695,2cyclictest3327654-21kworker/3:1+events3
327075399698694,3cyclictest3678809-21kworker/3:2+events3
327075399698694,3cyclictest3678809-21kworker/3:2+events3
327075399698694,3cyclictest3327654-21kworker/3:1+events3
327075399695690,4cyclictest3352386-21turbostat3
327075399695690,4cyclictest3352386-21turbostat3
327075399694688,5cyclictest3327654-21kworker/3:1+events3
327075399693689,3cyclictest3327654-21kworker/3:1+events3
327075399690686,3cyclictest3557428-21kworker/3:2+events3
327075399690683,5cyclictest3602723-21kworker/3:1+events3
327075399687685,1cyclictest3245886-21kworker/3:2+events3
327075399686682,3cyclictest3602723-21kworker/3:1+events3
327073799686681,4cyclictest3334076-21turbostat1
327075399679676,2cyclictest3245886-21kworker/3:2+events3
327075399678675,2cyclictest3678809-21kworker/3:2+events3
327075399678673,4cyclictest3327654-21kworker/3:1+events3
327075399677672,4cyclictest3245886-21kworker/3:2+events3
327075399676672,3cyclictest3327654-21kworker/3:1+events3
327075399676663,6cyclictest3245886-21kworker/3:2+events3
327075399674669,4cyclictest3327654-21kworker/3:1+events3
327075399669666,2cyclictest3245886-21kworker/3:2+events3
327073799608604,3cyclictest3358482-21turbostat1
327073799606603,2cyclictest3466061-21turbostat1
327075399600596,3cyclictest3473734-21turbostat3
327075399599595,3cyclictest3364616-21turbostat3
35564032260,1chrt3556402-21ssh2
3270744992622,2cyclictest3285293-21basename2
3270737992421,2cyclictest3680398-21idleruntime-cro1
3270744992319,2cyclictest0-21swapper/22
3270744992218,2cyclictest0-21swapper/22
3270730992217,4cyclictest3352380-21sh0
3270730992118,2cyclictest0-21swapper/00
35481512200,1sleep20-21swapper/22
3270744992017,2cyclictest490-21avahi-daemon2
3270744992017,2cyclictest3691416-21kthreadcore2
3270737992017,2cyclictest3649827-21idleruntime-cro1
3270730992017,2cyclictest3270601-21apt-key0
174098200,1rtkit-daemon0-21swapper/11
3270730991916,2cyclictest0-21swapper/00
3270744991814,2cyclictest0-21swapper/22
3270744991812,4cyclictest365-21systemd-journal2
3270744991811,5cyclictest365-21systemd-journal2
3270737991815,2cyclictest3420149-21diskmemload1
3270730991815,2cyclictest3550561-21cpuspeed_turbos0
3270744991714,2cyclictest3466884-21irqcore2
3270744991713,3cyclictest0-21swapper/22
3270744991713,2cyclictest3321874-21idleruntime-cro2
3270744991710,5cyclictest365-21systemd-journal2
3270737991714,2cyclictest3542729-21/usr/sbin/munin1
3270737991714,2cyclictest3527781-21gltestperf1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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