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2024-10-09 - 06:52

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 Wed Oct 09, 2024 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5620210988,16sleep10-21swapper/119:07:321
5497210897,6sleep30-21swapper/319:05:583
5654210796,6sleep00-21swapper/019:08:000
5801210285,12sleep20-21swapper/219:09:542
315242840,0sleep10-21swapper/100:05:551
42172700,1sleep3381ktimersoftd/323:05:133
173202660,1sleep011-21rcuc/020:55:270
247992270,1sleep024802-21timerandwakeup23:25:250
298452230,1sleep0101ktimersoftd/021:17:230
584199211,2cyclictest0-21swapper/323:30:113
584199211,2cyclictest0-21swapper/321:50:133
584199210,19cyclictest0-21swapper/321:25:133
584199210,19cyclictest0-21swapper/321:25:123
584199210,19cyclictest0-21swapper/300:35:123
64492200,0sleep00-21swapper/000:14:440
584199201,17cyclictest0-21swapper/322:15:113
584199191,16cyclictest21953-21diskmemload00:20:093
111152190,1sleep20-21swapper/220:40:222
584099182,2cyclictest0-21swapper/222:52:032
5840991815,2cyclictest6677-21kworker/u8:123:31:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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