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2024-10-03 - 21:58

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 20 highest latencies:
System rack8slot4s.osadl.org (updated Thu Oct 03, 2024 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33118952251174,24sleep70-21swapper/707:05:597
33119962236174,21sleep50-21swapper/507:07:265
33118822235166,22sleep30-21swapper/307:05:473
33119232225180,34sleep60-21swapper/607:06:226
33121432216183,21sleep20-21swapper/207:09:322
33119362209176,21sleep10-21swapper/107:06:341
33119302207180,17sleep40-21swapper/407:06:274
33097272207175,20sleep00-21swapper/007:05:040
3312424992821,6cyclictest0-21swapper/708:05:007
331242499270,22cyclictest3480290-21awk12:00:017
331241299253,1cyclictest0-21swapper/309:00:003
331242499240,23cyclictest3457204-21tr11:20:017
331242499240,23cyclictest0-21swapper/710:50:117
331242499240,1cyclictest3495257-21apt-get12:25:117
331242199240,23cyclictest0-21swapper/612:00:136
331241899240,24cyclictest3497682-21sh12:30:005
331241599240,3cyclictest3434060-21munin-run10:40:004
331241599240,3cyclictest3434060-21munin-run10:40:004
331241299240,23cyclictest3428357-21dump-pmu-power10:30:003
331241099240,24cyclictest0-21swapper/212:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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