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2024-11-23 - 16:45

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack3slot6s.osadl.org (updated Sat Nov 23, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2680821340,1sleep126809-21sh12:00:591
81272122111,6sleep30-21swapper/307:09:163
8042211695,16sleep00-21swapper/007:08:080
8147211594,16sleep10-21swapper/107:09:301
7895210378,19sleep20-21swapper/207:06:142
132442700,0sleep20-21swapper/210:39:152
291772690,0sleep30-21swapper/310:55:163
298782680,0sleep10-21swapper/109:49:081
287552680,0sleep10-21swapper/109:14:091
821499265,19cyclictest203450irq/24-eth109:55:111
821499231,20cyclictest0-21swapper/110:20:131
8215992213,8cyclictest0-21swapper/208:50:122
821499221,19cyclictest0-21swapper/109:50:161
8213992217,3cyclictest1948-21ssh12:10:130
126142220,1sleep10-21swapper/109:30:241
821599210,19cyclictest0-21swapper/209:30:192
821399211,18cyclictest0-21swapper/008:50:130
821699202,11cyclictest0-21swapper/310:18:023
821699200,4cyclictest0-21swapper/312:01:033
821699200,18cyclictest0-21swapper/309:50:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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